1    | /***************************************
2    |   $Revision:
3    | 
4    |   CA module: definitions of most functions.
5    | 
6    |   Status: NOT REVIEWED, NOT TESTED
7    | 
8    |   Author(s):       Ambrose Magee
9    | 
10   |   ******************//******************
11   | Modification History:
12   | 
13   | ******************/
14   | 
15   | /************************************
16   |  Copyright (c) 2000                              RIPE NCC
17   | 
18   | All Rights Reserved
19   | 
20   | Permission to use, copy, modify, and distribute this software and its
21   | documentation for any purpose and without fee is hereby granted,
22   | provided that the above copyright notice appear in all copies and that
23   | both that copyright notice and this permission notice appear in
24   | supporting documentation, and that the name of the author not be
25   | used in advertising or publicity pertaining to distribution of the
26   | software without specific, written prior permission.
27   | 
28   | THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
29   | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
30   | AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
31   | DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
32   | AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
33   | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
34   | ***************************************/
35   | 
36   | #define DICT_INIT
37   | 
38   | #include <stdio.h>
39   | #include <stdlib.h>
40   | #include <glib.h>
41   | #include <string.h>
42   | #include <stubs.h>
43   | #include "ca_defs.h"
44   | #include "ca_dictionary.h"
45   | #include "ca_configFns.h"
46   | #include <unistd.h>
47   | 
48   | /* #define DEBUG */
49   | 
50   | /**********************************************
51   |  * This file contains the definitions of all  *
52   |  * the functions.                    *
53   |   **********************************************/
54   | 
55   | void
56   | stringPack(char *dest, const char *source)
57   | /****************************************************************
58   |   * stringPack -- function to rewrite a line of text with only   *
59   |  *           one blankspace between each word.          *
60   |  *                                          *
61   |   * Parameters                                  *
62   |   *  dest -- destination character, the character to be       *
63   |  *        outputted                              *
64   |   *  source -- the 'source' character, the original character.  *
65   |  *                                          *
66   |  * Returns                                    *
67   |   *    Nothing (may change this to the number of characters    *
68   |   *    read or copied).                            *
69   |  *                                          *
70   |  ****************************************************************/
71   | {
72   | #ifdef DEBUG
73   | 	printf("\nInside stringPack function\n");
74   | #endif	/* DEBUG */
75   | 
76   | 	/*
77   | 	 * This while loop continues until the NULL character is copied into
78   | 	 * the destination string.  If a tab character is copied into the
79   | 	 * destination string, it is replaced with a blank-space character.
80   | 	 * 
81   | 	 * Multiple blank-space and/or tab characters are skipped in the source
82   | 	 * string until any other character is found.
83   | 	 */
84   | 
85   | 	while (1) {
86   | 		*dest = *source;
87   | 
88   | 		if (*dest == '\t')
89   | 			(*dest = ' ');
90   | 
91   | 		/* Exit if have copied the end of the string. */
92   | 		if (*dest == '\0')
93   | 			return;
94   | 
95   | 		/*
96   | 		 * If the source character was a blank-space or a tab, move
97   | 		 * to the next source character.  While the source character
98   | 		 * is a blank-space or a tab, move to the next character
99   | 		 * (i.e. ignore these characters).  When any other character
100  | 		 * is found in the source string, move to the next element of
101  | 		 * the destination string.
102  | 		 * 
103  | 		 * Otherwise, simultaneously, move to the next elements of the
104  | 		 * destination and the source strings.
105  | 		 */
106  | 
107  | 
108  | 
109  | 		if ((*source == ' ') || (*source == '\t')) {
110  | 			++source;
111  | 			while ((*source == ' ') || (*source == '\t')) {
112  | 				++source;
113  | 			}
114  | 
115  | 			++dest;
116  | 		}
117  | 		else {
118  | 			++dest;
119  | 			++source;
120  | 		}
121  | 	}
122  | }
123  | 
124  | 
125  | void
126  | ca_populateDictionary(dict_t woordenboek[], int size)
127  | /*******************************************************************
128  |  * ca_populateDictionary -- Parses dictionary file, initializes    *
129  |  *                  the dictionary structure and writes    *
130  |  *                  the file of dictionary symbols,       *
131  |   *                  ca_dictSyms.h                  *
132  |   *                                            *
133  |   * Parameters                                    *
134  |   *    woordenboek -- the dictionary to be populated          *
135  |   *    size -- the total number of variables i.e. the size of the  *
136  |  *           array of dict_t structures.  See D. & D., p.276    *
137  |  *                                            *
138  |  * Returns                                      *
139  |   *    Nothing ?  (may change this later)                  *
140  |  *                                            *
141  |  *******************************************************************/
142  | 
143  | {
144  | 	const char *blankLine = "\n";
145  | 	const char *comment = "#";
146  | 	char line[120];
147  | 	char input[120];
148  | 	int entry = 0;
149  | 	FILE *dictPtr;
150  | #ifdef DEBUG
151  | 	int i;
152  | 	FILE *defnPtr;
153  | #endif	/* DEBUG */
154  | 
155  | 	gchar **tokens;	/* Pointer to an array of strings. */
156  | 
157  | 	/*
158  | 	 * Try to open the dictionary file for reading.  If it cannot be
159  | 	 * opened, exit with an error.
160  | 	 */
161  | 	if ((dictPtr = fopen("dictionary.txt", "r")) == NULL) {
162  | 		fprintf(stderr, "Error: Unable to open 'dictionary.txt'\n");
163  | 		die;
164  | 	}
165  | 
166  | 
167  | 	/*
168  | 	 * DEBUG mode only. Try to open the definitions file for writing.  If
169  | 	 * it cannot be opened,exit with an error
170  | 	 */
171  | #ifdef DEBUG
172  | 	if ((defnPtr = fopen("defs.txt", "w")) == NULL) {
173  | 		fprintf(stderr, "Error: Unable to open 'defs.txt'\n");
174  | 		die;
175  | 	}
176  | #endif	/* DEBUG */
177  | 
178  | 	/*
179  | 	 * Read the file one line at a time; if the line begins with a
180  | 	 * comment, ignore it; otherwise, split each line into tokens; print
181  | 	 * each token. Assign each token to the appropriate member of the
182  | 	 * appropriate element of the dictionary array.
183  | 	 */
184  | 
185  | 	fgets(input, sizeof(input), dictPtr);
186  | 
187  | 	if ((strncmp(input, comment, 1) != 0) && (strncmp(input, blankLine, 1) != 0)) {
188  | 		/*
189  | 		 * First remove the newline character. Then replace multiple
190  | 		 * tab and space characters with single space characters.
191  | 		 */
192  | 
193  | 		/*
194  | 		 * Remove the newline character, if present. Replace the last
195  | 		 * character of the string array with with '\0'.
196  | 		 */
197  | 
198  | 		input[strlen(input) - 1] = '\0';
199  | 
200  | 		/*
201  | 		 * Now, remove the multiple space and tab characters.
202  | 		 */
203  | 
204  | 		stringPack(line, input);
205  | 
206  | 		g_strchomp(line);	/* Remove trailing w-space. */
207  | #ifdef DEBUG
208  | 		puts(line);
209  | #endif	/* DEBUG */
210  | 
211  | 		tokens = g_strsplit(line, " ", 0);
212  | 
213  | #ifdef DEBUG
214  | 		for (i = 0; tokens[i] != NULL; i++)
215  | 			printf("tokens[%d] = %s\n", i, tokens[i]);
216  | #endif	/* DEBUG */
217  | 
218  | 		/*
219  | 		 * We no longer need a variable for scope
220  | 		 * woordenboek[entry].varScope = atoi(tokens[1]);
221  | 		 */
222  | 
223  | 		strcpy(woordenboek[entry].varName, tokens[0]);
224  | 		strcpy(woordenboek[entry].varSym, tokens[1]);
225  | 		strcpy(woordenboek[entry].varType, tokens[2]);
226  | 		woordenboek[entry].varNum = entry;
227  | 
228  | 		/*
229  | 		 * DEBUG mode only. Write the dictionary symbol and the entry
230  | 		 * number to the definitions file.
231  | 		 */
232  | #ifdef DEBUG
233  | 		fprintf(defnPtr, "%s\t%d\n", tokens[1], entry);
234  | #endif	/* DEBUG */
235  | 
236  | 		++entry;
237  | 		g_strfreev(tokens);
238  | 	}
239  | 	/*
240  | 	 * Get the 2nd and subsequent line of the file.
241  | 	 */
242  | 
243  | 	fgets(input, sizeof(input), dictPtr);
244  | 
245  | 	while (!feof(dictPtr)) {
246  | 		/*
247  | 		 * Process the line if it is not a comment.
248  | 		 */
249  | 
250  | 		if ((strncmp(input, comment, 1) != 0) && (strncmp(input, blankLine, 1) != 0)) {
251  | 			/*
252  | 			 * First remove the newline character. Then replace
253  | 			 * multiple tab and space characters with single
254  | 			 * space characters.
255  | 			 */
256  | 
257  | 			/*
258  | 			 * Remove the newline character, if present. Replace
259  | 			 * the last character of the string array with with
260  | 			 * '\0'.
261  | 			 */
262  | 
263  | 			input[strlen(input) - 1] = '\0';
264  | 
265  | 			/*
266  | 			 * Now, remove the multiple space and tab characters.
267  | 			 */
268  | 
269  | 			stringPack(line, input);
270  | 
271  | 			g_strchomp(line);	/* Remove trailing w/space. */
272  | 
273  | #ifdef  DEBUG
274  | 			puts(line);
275  | #endif	/* DEBUG */
276  | 			tokens = g_strsplit(line, " ", 0);
277  | 
278  | #ifdef DEBUG
279  | 			for (i = 0; tokens[i] != NULL; i++)
280  | 				printf("tokens[%d] = %s\n", i, tokens[i]);
281  | #endif	/* DEBUG */
282  | 
283  | 			/*
284  | 			 * We no longer need to know the scope of a variable
285  | 			 * woordenboek[entry].varScope = atoi(tokens[1]);
286  | 			 */
287  | 
288  | 			strcpy(woordenboek[entry].varName, tokens[0]);
289  | 			strcpy(woordenboek[entry].varSym, tokens[1]);
290  | 			strcpy(woordenboek[entry].varType, tokens[2]);
291  | 			woordenboek[entry].varNum = entry;
292  | 
293  | #ifdef DEBUG
294  | 			fprintf(defnPtr, "%s\t%d\n", tokens[1], entry);
295  | #endif	/* DEBUG */
296  | 
297  | 			++entry;
298  | 
299  | 			g_strfreev(tokens);
300  | 		}
301  | 		fgets(input, sizeof(input), dictPtr);
302  | 	}
303  | 
304  | 	fclose(dictPtr);
305  | 
306  | #ifdef DEBUG
307  | 	fclose(defnPtr);
308  | #endif	/* DEBUG */
309  | 
310  | } /* End of ca_populateDictionary() function. */
311  | 
312  | 
313  | void
314  | opSplitsen(FILE * filePtr, gchar ** tokenArray)
315  | /*******************************************************************
316  |  * opSplitsen -- reads a file and splits it into  tokens.        *
317  |  *                                            *
318  |  * Parameters                                    *
319  |   *  filePtr -- a text file                            *
320  |  *  tokenArray -- pointer to an array of strings              *
321  |  *                                            *
322  |  * Returns                                      *
323  |  *  Nothing                                      *
324  |  *                                            *
325  |  *******************************************************************/
326  | {
327  | 	/*
328  | 	 * Declaring character constants is safer than using #define.
329  | 	 */
330  | 
331  | 	const char *blankLine = "\n";	/* Declared as a string, not a
332  | 					 * character. */
333  | 	const char *comment = "#";	/* Declared as a string. */
334  | 	char line[99];
335  | 	char input[99];
336  | #ifdef DEBUG
337  | 	int lineNo = 0;
338  | 	int j;
339  | #endif	/* DEBUG */
340  | 
341  | 
342  | 	fgets(input, sizeof(input), filePtr);	/* Get the (first) line from
343  | 						 * the */
344  | 	/* file to which filePtr points. */
345  | 
346  | #ifdef DEBUG
347  | 	printf("\nFIRST INPUT >>> %s\n", input);
348  | #endif	/* DEBUG */
349  | 
350  | 	/* Compare the first character of the input */
351  | 	/* to the comment and the newline strings. */
352  | 
353  | 	if ((strncmp(input, comment, 1) != 0) && (strncmp(input, blankLine, 1) != 0)) {
354  | 		/* Remove the newline character, if present. */
355  | 		/* Replace the last character */
356  | 		/* of the string array with '\0'. */
357  | 
358  | 		input[strlen(input) - 1] = '\0';
359  | #ifdef DEBUG
360  | 		printf("First Input >>> %s\n", input);
361  | #endif	/* DEBUG */
362  | 
363  | 		strcpy(line, input);
364  | #ifdef DEBUG
365  | 		printf("First Line after copy >>> %s\n", line);
366  | #endif	/* DEBUG */
367  | 
368  | 		stringPack(line, input);
369  | #ifdef DEBUG
370  | 		printf("Line: %s\n", line);
371  | #endif	/* DEBUG */
372  | 
373  | 		g_strchomp(line);
374  | 		/*
375  | 		 * g_strdelimit(line, " ", ':'); g_strdelimit(line, "\t",
376  | 		 * '*');
377  | 		 */
378  | 
379  | #ifdef DEBUG
380  | 		printf("%3d> %s\n", ++lineNo, line);
381  | #endif	/* DEBUG */
382  | 
383  | 		/*
384  | 		 * g_strsplit() is a GLib function; it returns an array of
385  | 		 * strings.
386  | 		 * 
387  | 		 * Here, we split on two spaces, "  ". We set max_tokenArray to
388  | 		 * be 0.  We want the first token to be the name of the
389  | 		 * variable and the other tokens to be the value of the
390  | 		 * variable, qualifiers, etc.
391  | 		 */
392  | 
393  | 		tokenArray = g_strsplit(line, " ", 0);
394  | 
395  | #ifdef DEBUG
396  | 		for (j = 0; tokenArray[j] != NULL; j++)
397  | 			printf("token[%d] = %s\n", j, tokenArray[j]);
398  | #endif	/* DEBUG */
399  | 
400  | 	}	/* End of processing the first line, if not commented. */
401  | 
402  | 	/* End of getting the first line. */
403  | 
404  | 
405  | 	/* Get the 2nd line of the file. */
406  | 	fgets(input, sizeof(input), filePtr);
407  | 
408  | 	while (!feof(filePtr)) {
409  | 
410  | 		/* Process the line if it is not commented. */
411  | 		if ((strncmp(input, comment, 1) != 0) && (strncmp(input, blankLine, 1) != 0)) {
412  | 			/* Remove the newline character, if present. */
413  | 			input[strlen(input) - 1] = '\0';
414  | #ifdef DEBUG
415  | 			printf("Subsequent Input >>> %s\n", input);
416  | #endif	/* DEBUG */
417  | 
418  | 			strcpy(line, input);
419  | #ifdef DEBUG
420  | 			printf("Subsequent Line after copy >>> %s\n", line);
421  | #endif	/* DEBUG */
422  | 
423  | 			stringPack(line, input);
424  | #ifdef DEBUG
425  | 			printf("Line: %s\n", line);
426  | #endif	/* DEBUG */
427  | 
428  | 			g_strchomp(line);
429  | 
430  | #ifdef DEBUG
431  | 			printf("%3d> %s\n", ++lineNo, line);
432  | #endif	/* DEBUG */
433  | 
434  | 			/*
435  | 			 * See the comment above about the maximum number of
436  | 			 * tokens being set to 0.
437  | 			 */
438  | 
439  | 			tokenArray = g_strsplit(line, " ", 0);
440  | 
441  | #ifdef DEBUG
442  | 			for (j = 0; tokenArray[j] != NULL; j++) {
443  | 				printf("token[%d] = %s\n", j, tokenArray[j]);
444  | 				/* Can also use puts(tokenArray[j]) here. */
445  | 			}
446  | #endif	/* DEBUG */
447  | 		}	/* Processed uncommented lines. */
448  | 
449  | 		fgets(input, sizeof(input), filePtr);
450  | 	}	/* Processed the 2nd & subsequent lines of the file. */
451  | 
452  | } /* End of processing the opened file. */
453  | 
454  | 
455  | void
456  | ca_readConfig(const char *configFile, values_t confVars[], int size)
457  | /*******************************************************************
458  |  *                                            *
459  |  * ca_readConfig -- parses the config file and writes the values   *
460  |  *              into memory.                        *
461  |  *                                            *
462  |  * Parameters                                    *
463  |  *    configFile -- the configuration file
464  |   *    confVars[] -- the array of values structures            *
465  |   *    size -- the number of configuration variables          *
466  |  *                                             *
467  |  * Returns                                      *
468  |  *    Nothing -- perhaps make this return 0 on successful exit ?  *
469  |  *                                            *
470  |  * Note:   Should we make the name of the config file a global    *
471  |   *      variable ?                                *
472  |  *******************************************************************/
473  | {
474  | 	FILE *confPtr;	/* Pointer to config file. */
475  | 	char name[STRLENGTH_M];	/* The name of the config variable */
476  | 	/* 80 characters */
477  | 	char value[STRLENGTH_XXL];	/* The value of the variable */
478  | 	/* 640 characters */
479  | 	int location;	/* Storage Location of the variable's value. */
480  | 	int type;	/* Data type of the variable, represented by an
481  | 			 * integer. */
482  | 
483  | 
484  | 	const char *blankLine = "\n";	/* Declared as a string, not a
485  | 					 * character. */
486  | 	const char *comment = "#";	/* Declared as a string. */
487  | 
488  | 	char source[16];	/* The name of a source. */
489  | 	char database[STRLENGTH_M];	/* The elements of a database. */
490  | 	/* 80 characters */
491  | 
492  | 	/*
493  | 	 * UPDSOURCE variables: whoisd host, query-port, update-port.
494  | 	 */
495  | 	char updDetails[STRLENGTH_M];	/* The details of the update host: */
496  | 	/* the name of the qry & upd machine; */
497  | 	/* the query port; */
498  | 	/* the update port. */
499  | 
500  | 
501  | 	gchar **dbcomps;	/* Pointer to an array of strings that
502  | 				 * represents */
503  | 	/* the components of a db. */
504  | 
505  | 
506  | 	gchar **updDbcomps;	/* Pointer to an array of strings that */
507  | 	/* represents the components of an UPD Source. */
508  | 
509  | 	ca_ripadmin_t *newAdminPtr;	/* A pointer to a new instance of */
510  | 	/* a ca_ripadmin_t variable.   */
511  | 
512  | 	ca_database_t *newUpdDbPtr;	/* A pointer to a new instance of */
513  | 	/* ca_database_t, for UPDSOURCE. */
514  | 
515  | 	ca_updDbSource_t *newUpdSrc;	/* A pointer to a new instance of */
516  | 	/* ca_updDbSource_t structure. */
517  | 
518  | #ifdef DEBUG
519  | int i;		/* A counting variable used for debugging. */
520  | #endif	/* DEBUG */
521  | 
522  | 	/*
523  | 	 * Function Prototype for ca_getStorageLocation() We put it here;
524  | 	 * thus it can only be called from within ca_readConfig()
525  | 	 * 
526  | 	 * This function finds the location in the values_t array where we store
527  | 	 * pointers to the string value and the actual value of the variable.
528  | 	 * It returns this location as an integer.
529  | 	 * 
530  | 	 */
531  | 	int ca_getStorageLocation(char[], dict_t[], int);
532  | 
533  | 	/*
534  | 	 * Function Prototype for ca_getType() We put it here so that it can
535  | 	 * only be called from within ca_readConfig()
536  | 	 * 
537  | 	 * This function returns the type of the configuration variable.  It
538  | 	 * returns it as a string.
539  | 	 * 
540  | 	 */
541  | 	int ca_getType(char[], dict_t[], int);
542  | 
543  | 
544  | #ifdef  DEBUG
545  | 	printf("\nInside readConfig() function.\n");
546  | 	printf("Configuration file is: %s\n", configFile);
547  | #endif	/* DEBUG */
548  | 
549  | 	/*
550  | 	 * Open the configuration file for reading .....
551  | 	 */
552  | 	if ((confPtr = fopen(configFile, "r")) == NULL) {
553  | 		printf("Error: file %s could not be opened.\n", configFile);
554  | 		die;
555  | 	}
556  | 
557  | 	/*
558  | 	 * Read the first record in the configuration file ..... We read the
559  | 	 * _name_ of the variable using fscanf into a string array.  We read
560  | 	 * the _value_ of the variable using fgets into an array; thus, we
561  | 	 * can handle values of variables with qualifiers (e.g. SPLIT after
562  | 	 * DBLIST) and values with blank characters (e.g. REPLYBANNER).
563  | 	 */
564  | 	fscanf(confPtr, "%s", name);
565  | 	fgets(value, sizeof(value), confPtr);
566  | 	g_strstrip(value);
567  | 
568  | 
569  | 	/*
570  | 	 * While there are records to be read in the config file. write the
571  | 	 * current record into memory, read the next record in the config
572  | 	 * file
573  | 	 */
574  | 
575  | 
576  | 	while (!feof(confPtr)) {
577  | 
578  | 		/*
579  | 		 * From the variable name, find the dictionary number. The
580  | 		 * dictionary number is defined as the place in the values
581  | 		 * array in which to store the value of the variable.
582  | 		 * 
583  | 		 */
584  | 
585  | 		/*
586  | 		 * Process the line only when/if it is not a comment or a
587  | 		 * blankline.
588  | 		 */
589  | 		if ((strncmp(name, comment, 1) != 0) && (strncmp(name, blankLine, 1) != 0)) {
590  | 			/*
591  | 			 * If the last character of "value" is '\n', replace
592  | 			 * it with '\0'.
593  | 			 */
594  | 			if (value[strlen(value) - 1] == '\n') {
595  | 				value[strlen(value) - 1] = '\0';
596  | 			}
597  | 
598  | 			/*
599  | 			 * From the variable name, find the element of the
600  | 			 * values array in which to store the value of the
601  | 			 * variable.
602  | 			 * 
603  | 			 */
604  | 			location = ca_getStorageLocation(name, dictionary, VARS);
605  | 
606  | #ifdef DEBUG
607  | 			printf("The location is: %d\n", location);
608  | #endif	/* DEBUG */
609  | 
610  | 			/*
611  | 			 * See if the string value has already been stored;
612  | 			 * if it has, then concatenate the new value to it;
613  | 			 * if not, then allocate some memory and copy the
614  | 			 * string into it.
615  | 			 */
616  | 
617  | 			/*
618  | 			 * If this variable already exists, it has a non-zero
619  | 			 * value and this 'if' statement returns a "true"
620  | 			 * value. Otherwise, it returns a "zero" or "false"
621  | 			 * value.
622  | 			 */
623  | 			if (confVars[location].strPtr) {
624  | 				/*
625  | 				 * strcat(confVars[location].strPtr, "\n");
626  | 				 * strcat(confVars[location].strPtr, value);
627  | 				 */
628  | 				g_string_append(confVars[location].strPtr, "\n");
629  | 				g_string_append(confVars[location].strPtr, value);
630  | 			}
631  | 			else {
632  | 				/*
633  | 				 * Store a pointer to the string that
634  | 				 * contains the value This is not necessarily
635  | 				 * the actual value itself. First, we must
636  | 				 * allocate some memory.
637  | 				 */
638  | 
639  | 				/******************************************************
640  | 				 * We now use GLib strings here.  Thus, this section 	*
641  | 				 * is commented out.												*
642  | 				 * We use g_string_new() to create a new GString.		*
643  | 				 * 																	*
644  | 				 ******************************************************/
645  | 				 
646  | 				confVars[location].strPtr = g_string_new(value);
647  | 
648  | 				/*
649  | 				 * confVars[location].strPtr = (char *) malloc(STRLENGTH_XXL);
650  | 				 */
651  | 
652  | 				/*
653  | 				 * We check the return value of the malloc
654  | 				 * function .....
655  | 				 */
656  | 	
657  | 				/*
658  | 				 * if (confVars[location].strPtr == NULL) {
659  | 				 *  	fprintf(stderr, "Cannot allocate memory for confVars[location].strPtr\n");
660  | 			    *		die;
661  | 				 *  }
662  | 				 * strcpy(confVars[location].strPtr, value);
663  | 				 */
664  | 			}
665  | 
666  | 			/*
667  | 			 * Now, store a pointer to the _value_ of the
668  | 			 * variable.  Do this as follows: (a) get the _type_
669  | 			 * of the variable (b) store a pointer to the value
670  | 			 * of the variable in a way that depends on the
671  | 			 * _type_ of the variable.
672  | 			 */
673  | #ifdef DEBUG
674  | 			printf("Variable \"%s\" is data-type \"%d\"\n", name, ca_getType(name, dictionary, VARS));
675  | #endif	/* DEBUG */
676  | 
677  | 
678  | 			type = ca_getType(name, dictionary, VARS);
679  | 
680  | 			/*
681  | 			 * Given the _type_ of the variable, store the value
682  | 			 * of the variable in the appropriate way.
683  | 			 */
684  | 			switch (type) {
685  | 			case 11:
686  | 
687  | #ifdef DEBUG
688  | 				puts("Data type is Integer");
689  | #endif	/* DEBUG */
690  | 
691  | 				confVars[location].valPtr = malloc(sizeof(int));
692  | 				if (confVars[location].valPtr == NULL) {
693  | 					fprintf(stderr, "Cannot allocate memory !!!\n");
694  | 					die;
695  | 				}
696  | 				sscanf(value, "%d", (int *) confVars[location].valPtr);
697  | 				break;
698  | 
699  | 			case 12:
700  | 
701  | #ifdef DEBUG
702  | 				puts("Data type is String !!! *** !!!");
703  | #endif	/* DEBUG */
704  | 
705  | 
706  | 				/*
707  | 				 * Test if this variable has already been
708  | 				 * created. Look for a non-zero i.e. true
709  | 				 * value.
710  | 				 * 
711  | 				 * First put a '\n' character at the end of the
712  | 				 * existing string. Then, concatenate the
713  | 				 * additional string.
714  | 				 */
715  | 				if (confVars[location].valPtr) {
716  | #ifdef DEBUG
717  | 					printf("\n%s variable already exists\n", name);
718  | #endif	/* DEBUG */
719  | 					g_string_append(confVars[location].valPtr, value);
720  | 					g_string_append(confVars[location].valPtr, "\n");
721  | 				}
722  | 				else {
723  | 					/*
724  | 					 * If the variable has not already
725  | 					 * been created, then create it.
726  | 					 */
727  | #ifdef DEBUG
728  | 					printf("\n%s variable does not exist\n", name);
729  | #endif	/* DEBUG */
730  | 
731  | 					/*
732  | 					 * We use g_string_new() to create a
733  | 					 * new GString. This is a _structure_
734  | 					 * of str and len.  The actual string
735  | 					 * is stored in the str component.
736  | 					 * Thus, when we want to access the
737  | 					 * string, we must look into
738  | 					 * structure.
739  | 					 */
740  | 					confVars[location].valPtr = g_string_new(value);
741  | 					g_string_append(confVars[location].valPtr, "\n");
742  | 				}
743  | 
744  | 				break;
745  | 
746  | 			case 13:
747  | #ifdef DEBUG
748  | 				puts("Data type is Dirlist");
749  | #endif	/* DEBUG */
750  | 				confVars[location].valPtr = (char *) malloc(STRLENGTH);
751  | 				if (confVars[location].valPtr == NULL) {
752  | 					fprintf(stderr, "Cannot allocate memory !!!\n");
753  | 					die;
754  | 				}
755  | 				strcpy(confVars[location].valPtr, value);
756  | 				break;
757  | 
758  | 			case 14:
759  | #ifdef DEBUG
760  | 				puts("Data type is Boolean");
761  | #endif	/* DEBUG */
762  | 
763  | 				/*
764  | 				 * confVars[location].valPtr = (char
765  | 				 * *)malloc(2);
766  | 				 */
767  | 
768  | 				confVars[location].valPtr = malloc(sizeof(int));
769  | 				if (confVars[location].valPtr == NULL) {
770  | 					fprintf(stderr, "Cannot allocate memory !!!\n");
771  | 					die;
772  | 				}
773  | 				/*
774  | 				 * strcpy(confVars[location].valPtr, value);
775  | 				 */
776  | 				sscanf(value, "%d", (int *) confVars[location].valPtr);
777  | 				break;
778  | 
779  | 
780  | 			case 16:
781  | #ifdef DEBUG
782  | 				puts("Found the CA_ADMIN stuff !!!");
783  | #endif	/* DEBUG */
784  | 				/*
785  | 				 * The elements of the Admin-DB have already
786  | 				 * been read in.
787  | 				 */
788  | 				/*
789  | 				 * Now, split up the elements and assign them
790  | 				 * to the
791  | 				 */
792  | 				/* components of the Admin-DB structure. */
793  | 				/*
794  | 				 * First, separate the values in "value",
795  | 				 * using ',' as a
796  | 				 */
797  | 				/* delimiting character.  */
798  | 				dbcomps = g_strsplit(value, ",", 0);
799  | 
800  | #ifdef DEBUG
801  | 				for (i = 0; dbcomps[i] != NULL; i++)
802  | 					printf("dbcomps[%d] = %s\n", i, dbcomps[i]);
803  | #endif	/* DEBUG */
804  | 
805  | 				/*
806  | 				 * Now, allocate some memory to the
807  | 				 * newAdminPtr.
808  | 				 */
809  | 				newAdminPtr = calloc(1, sizeof(ca_ripadmin_t));
810  | 
811  | 				/*
812  | 				 * Check that we actually got the memory.
813  | 				 */
814  | 				if (newAdminPtr == NULL) {
815  | 					fprintf(stderr, "Cannot allocate memory to new admin-db structure\n");
816  | 					die;
817  | 				}
818  | 
819  | 				/*
820  | 				 * Now, assign the elements of the dbcomps
821  | 				 * array to the appropriate components of the
822  | 				 * structure to which newAdminPtr points.
823  | 				 */
824  | 
825  | 				/*
826  | 				 * Strip leading and trailing whitespace from
827  | 				 * dbcomps[0]
828  | 				 */
829  | 				/*
830  | 				 * g_strstrip( dbcomps[0] );
831  | 				 */
832  | 
833  | 				strcpy(newAdminPtr->host, dbcomps[0]);
834  | 				newAdminPtr->port = atoi(dbcomps[1]);
835  | 				strcpy(newAdminPtr->user, dbcomps[2]);
836  | 				strcpy(newAdminPtr->password, dbcomps[3]);
837  | 				strcpy(newAdminPtr->tableName, dbcomps[4]);
838  | 
839  | 				g_strfreev(dbcomps);
840  | 
841  | #ifdef DEBUG
842  | 				puts("Testing the population of the rip-admin db structure:");
843  | 				printf("\n%s::%d::%s::%s::%s\n", newAdminPtr->host, newAdminPtr->port, newAdminPtr->user, newAdminPtr->password, newAdminPtr->tableName);
844  | #endif	/* DEBUG */
845  | 
846  | 				/*
847  | 				 * Now, assign these values into the correct
848  | 				 * long-term storage.
849  | 				 */
850  | 
851  | 
852  | 				confVars[location].valPtr = (ca_ripadmin_t *) calloc(1, sizeof(ca_ripadmin_t));
853  | 
854  | 
855  | 				/*
856  | 				 * Check that we actually got the memory.
857  | 				 */
858  | 				if (confVars[location].valPtr == NULL) {
859  | 					fprintf(stderr, "Cannot allocate memory to new admin-db structure\n");
860  | 					die;
861  | 				}
862  | 
863  | 				memcpy(confVars[location].valPtr, newAdminPtr, sizeof(ca_ripadmin_t));
864  | 				/*
865  | 				 * strcpy( ((ca_ripadmin_t
866  | 				 * *)confVars[location].valPtr)->host,
867  | 				 * newAdminPtr->host);
868  | 				 * (confVars[location].valPtr)->port =
869  | 				 * newAdminPtr->port; strcpy(
870  | 				 * (confVars[location].valPtr)->user,
871  | 				 * newAdminPtr->user); strcpy(
872  | 				 * (confVars[location].valPtr)->password,
873  | 				 * newAdminPtr->password); strcpy(
874  | 				 * (confVars[location].valPtr)->tableName,
875  | 				 * newAdminPtr->tableName);
876  | 				 */
877  | 
878  | 				free(newAdminPtr);
879  | #ifdef DEBUG
880  | 				printf("The ripadmin machine is: %s\n", ((ca_ripadmin_t *) confVars[location].valPtr)->host);
881  | #endif	/* DEBUG */
882  | 
883  | 				break;
884  | 
885  | 			case 17:
886  | 				/*
887  | 				 * Found Update_Source variable.
888  | 				 */
889  | #ifdef DEBUG
890  | 				printf("Found Update_Source variable !!!\n");
891  | #endif	/* DEBUG */
892  | 
893  | #ifdef DEBUG
894  | 				puts(name);
895  | 				puts(value);
896  | #endif	/* DEBUG */
897  | 
898  | 				/*
899  | 				 * Split the value into DB-name, DB-details,
900  | 				 * updDetails. Use blankspace as the
901  | 				 * delimiter between each of these variables.
902  | 				 */
903  | 				sscanf(value, "%s %s %s", source, database, updDetails);
904  | #ifdef  DEBUG
905  | 				puts(source);
906  | 				puts(database);
907  | 				puts(updDetails);
908  | #endif	/* DEBUG */
909  | 
910  | 				/*
911  | 				 * Using the values in "database", populate a
912  | 				 * ca_database_t structure. Give this
913  | 				 * variable a name.
914  | 				 */
915  | 
916  | 				/*
917  | 				 * First, separate the values in "database",
918  | 				 * using "," as as a delimiting  character.
919  | 				 */
920  | 				dbcomps = g_strsplit(database, ",", 0);
921  | 
922  | #ifdef DEBUG
923  | 				for (i = 0; dbcomps[i] != NULL; i++)
924  | 					printf("dbcomps[%d] = %s\n", i, dbcomps[i]);
925  | #endif	/* DEBUG */
926  | 
927  | 				/*
928  | 				 * Create a structure for this database.
929  | 				 */
930  | 				newUpdDbPtr = calloc(1, sizeof(ca_database_t));
931  | 
932  | 				/*
933  | 				 * Did we get the memory ?  We make some
934  | 				 * checks.
935  | 				 */
936  | 				if (newUpdDbPtr == NULL) {
937  | 					fprintf(stderr, "Cannot allocate memory to new UPD DB structure.\n");
938  | 					die;
939  | 				}
940  | 
941  | 				strcpy(newUpdDbPtr->host, dbcomps[0]);
942  | 				newUpdDbPtr->port = atoi(dbcomps[1]);
943  | 				strcpy(newUpdDbPtr->user, dbcomps[2]);
944  | 				strcpy(newUpdDbPtr->password, dbcomps[3]);
945  | 				strcpy(newUpdDbPtr->dbName, dbcomps[4]);
946  | 
947  | 				g_strfreev(dbcomps);
948  | 
949  | #ifdef DEBUG
950  | 				puts("Testing the population of the UPD db structure:");
951  | 				printf("\n%s::%d::%s::%s::%s\n", newUpdDbPtr->host, newUpdDbPtr->port, newUpdDbPtr->user, newUpdDbPtr->password, newUpdDbPtr->dbName);
952  | #endif	/* DEBUG */
953  | 
954  | 				/*
955  | 				 * Now, store the values contained in the
956  | 				 * updDetails string.
957  | 				 */
958  | 
959  | 				/*
960  | 				 * First, separate the values in the
961  | 				 * 'updDetails' string, using "," as a
962  | 				 * delimiting character.
963  | 				 */
964  | 				updDbcomps = g_strsplit(updDetails, ",", 0);
965  | 
966  | #ifdef DEBUG
967  | 				for (i = 0; updDbcomps[i] != NULL; i++)
968  | 					printf("updDbcomps[%d] = %s\n", i, updDbcomps[i]);
969  | #endif	/* DEBUG */
970  | 
971  | 				/*
972  | 				 * Using the above ca_database_t structure,
973  | 				 * the "source" value and the values of
974  | 				 * updDbcomps, populate the ca_updDbSource_t
975  | 				 * structure.
976  | 				 * 
977  | 				 */
978  | 
979  | 				/*
980  | 				 * Create a new structure for this UPD
981  | 				 * Source.
982  | 				 */
983  | 				newUpdSrc = calloc(1, sizeof(ca_updDbSource_t));
984  | 
985  | 				if (newUpdSrc == NULL) {
986  | 					fprintf(stderr, "Cannot allocate memory to new source structure\n");
987  | 					die;
988  | 				}
989  | 
990  | #ifdef DEBUG
991  | 				puts("Created a structure for the UPD Source variable");
992  | #endif	/* DEBUG */
993  | 
994  | 				/*
995  | 				 * Now, populate this structure.
996  | 				 */
997  | 
998  | 				strcpy(newUpdSrc->name, source);
999  | 				newUpdSrc->updDb = *newUpdDbPtr;
1000 | 				strcpy(newUpdSrc->whoisd_host, updDbcomps[0]);
1001 | 				newUpdSrc->qryPort = atoi(updDbcomps[1]);
1002 | 				newUpdSrc->updPort = atoi(updDbcomps[2]);
1003 | 
1004 | 				free(newUpdDbPtr);	/* Was copied */
1005 | 				g_strfreev(updDbcomps);
1006 | 
1007 | #ifdef DEBUG
1008 | 				puts("Testing the population of the ca_updDbSource_t structure:");
1009 | 				printf("Update Source name: %s\n", newUpdSrc->name);
1010 | 				printf("\nUPD-DB == %s::%d::%s::%s::%s\n", (newUpdSrc->updDb).host, (newUpdSrc->updDb).port, (newUpdSrc->updDb).user, (newUpdSrc->updDb).password, (newUpdSrc->updDb).dbName);
1011 | 				printf("\nUpdate Source Machine Details: %s::%d::%d\n", newUpdSrc->whoisd_host, newUpdSrc->qryPort, newUpdSrc->updPort);
1012 | #endif	/* DEBUG */
1013 | 
1014 | 				/*
1015 | 				 * Now, assign these values into the correct
1016 | 				 * long-term storage.
1017 | 				 */
1018 | 
1019 | 				confVars[location].valPtr = (ca_updDbSource_t *) calloc(1, sizeof(ca_updDbSource_t));
1020 | 
1021 | 				/*
1022 | 				 * Check that we actually got the memory.
1023 | 				 */
1024 | 				if (confVars[location].valPtr == NULL) {
1025 | 					fprintf(stderr, "Cannot allocate memory to new admin-db structure\n");
1026 | 					die;
1027 | 				}
1028 | 
1029 | 				memcpy(confVars[location].valPtr, newUpdSrc, sizeof(ca_updDbSource_t));
1030 | 
1031 | 				/* No longer needed. */
1032 | 				free(newUpdSrc);
1033 | 
1034 | #ifdef DEBUG
1035 | 				printf("UPD-Source/DB-details/user: %s\n", (((ca_updDbSource_t *) confVars[location].valPtr)->updDb).user);
1036 | #endif	/* DEBUG */
1037 | 
1038 | 				break;
1039 | 
1040 | 			default:
1041 | 				fprintf(stderr, "Data type not found for variable \"%s\".\n", name);
1042 | 				die;
1043 | 				break;
1044 | 			}
1045 | 		}
1046 | 
1047 | 		fscanf(confPtr, "%s", name);
1048 | 		fgets(value, sizeof(value), confPtr);
1049 | 		g_strstrip(value);
1050 | 
1051 | 	}	/* End of processing the config file. */
1052 | 
1053 | } /* End of readConfig() function */
1054 | 
1055 | 
1056 | 
1057 | 
1058 | void
1059 | ca_getDictionary(dict_t woordenboek[], int size)
1060 | {
1061 | 	int k;
1062 | 
1063 | 	for (k = 0; k < size; k++) {
1064 | 		printf("\nj = %d\n", k);
1065 | 		/*
1066 | 		 * printf("%s\t%d\t%s\n", woordenboek[k].varName,
1067 | 		 * woordenboek[k].varScope, woordenboek[k].varType);
1068 | 		 */
1069 | 		printf("%s\t%s\t%s\t%d\n", woordenboek[k].varName, woordenboek[k].varSym, woordenboek[k].varType, woordenboek[k].varNum);
1070 | 
1071 | 	}
1072 | }
1073 | 
1074 | 
1075 | int
1076 | ca_get_int(int symbol)
1077 | {
1078 | 	int *xPtr;
1079 | 
1080 | 	/*
1081 | 	 * First print a message saying that the ca_get_int() function is
1082 | 	 * being called.
1083 | 	 */
1084 | #ifdef DEBUG
1085 | 	printf("\nDEBUG: ca_get_int() function is called .....\n");
1086 | 	printf("DEBUG: New value of StringPtr: %s\n", confVars[symbol].strPtr);
1087 | #endif	/* DEBUG */
1088 | 
1089 | 	/*
1090 | 	 * Look at the appropriate place in the dictionary; e.g. C_BINDPORT
1091 | 	 * => the first element, index = 0.
1092 | 	 * 
1093 | 	 * if the varType is not an integer, exit with an error;
1094 | 	 * 
1095 | 	 * otherwise, return an integer.
1096 | 	 * 
1097 | 	 */
1098 | 
1099 | 	/* Look at the appropriate place in the dictionary. */
1100 | 
1101 | #ifdef DEBUG
1102 | 	printf("\nDEBUG: Variable type: %s\n", dictionary[symbol].varType);
1103 | #endif	/* DEBUG */
1104 | 
1105 | 	/* If the variable type is not an integer, exit with an error. */
1106 | 	if (strcmp(dictionary[symbol].varType, "CA_INT") != 0) {
1107 | 		fprintf(stderr, "Error: unexpected variable type.\n");
1108 | 		die;
1109 | 	}
1110 | 	else {
1111 | 		/*
1112 | 		 * Lock the value of the variable before reading it.
1113 | 		 */
1114 | 
1115 | 		pthread_mutex_lock(&Lock);
1116 | 
1117 | 		xPtr = confVars[symbol].valPtr;
1118 | 		/*
1119 | 		 * Unlock the value of the variable after reading it.
1120 | 		 */
1121 | 		pthread_mutex_unlock(&Lock);
1122 | 	}
1123 | 
1124 | 	if (xPtr == NULL) {
1125 | 		printf("Error: undefined integer variable: %s\n ", dictionary[symbol].varName);
1126 | 
1127 | 		die;
1128 | 	}
1129 | 	return (*xPtr);
1130 | }
1131 | 
1132 | char *
1133 | ca_get_dirlist(int symbol)
1134 | {
1135 | 	/*
1136 | 	 * This function returns a pointer to a character array.  Thus, we
1137 | 	 * need to declare such a pointer.
1138 | 	 * 
1139 | 	 */
1140 | 
1141 | 	char *xPtr;
1142 | #ifdef  DEBUG
1143 | 	printf("\nca_get_dirlist() function is called .....\n");
1144 | #endif	/* DEBUG */
1145 | 
1146 | 
1147 | 	/*
1148 | 	 * Look at the appropriate place in the dictionary; e.g. CA_HELP =>
1149 | 	 * the second element, index = 1.
1150 | 	 * 
1151 | 	 * if the varType is not CA_DIRLIST, exit with an error;
1152 | 	 * 
1153 | 	 * otherwise, return a pointer to the value.
1154 | 	 * 
1155 | 	 */
1156 | 
1157 | 	/* Look at the appropriate place in the dictionary. */
1158 | #ifdef DEBUG
1159 | 	printf("\nVariable type: %s\n", dictionary[symbol].varType);
1160 | #endif	/* DEBUG */
1161 | 
1162 | 	/* If the variable type is not CA_DIRLIST, exit with an error. */
1163 | 	if (strcmp(dictionary[symbol].varType, "CA_DIRLIST") != 0) {
1164 | 		fprintf(stderr, "Error: unexpected variable type.\n");
1165 | 		die;
1166 | 	}
1167 | 	else {
1168 | 		pthread_mutex_lock(&Lock);
1169 | 		/*
1170 | 		 * Test if a value for this variable has been defined.  If
1171 | 		 * yes, return a copy of it.  If not, print an error message
1172 | 		 * and die.
1173 | 		 */
1174 | 		if (confVars[symbol].valPtr) {
1175 | 			xPtr = (strdup(confVars[symbol].valPtr));
1176 | #ifdef DEBUG
1177 | 			printf("Value: %s\n", xPtr);
1178 | #endif	/* DEBUG */
1179 | 		}
1180 | 		else {
1181 | 			printf("Error: undefined DIRLIST variable: %s\n", dictionary[symbol].varName);
1182 | 			die;
1183 | 		}
1184 | 		pthread_mutex_unlock(&Lock);
1185 | 	}
1186 | 	return (xPtr);
1187 | }
1188 | 
1189 | 
1190 | char *
1191 | ca_get_string(int symbol)
1192 | {
1193 | 	/*
1194 | 	 * This function returns a pointer to a character array.  Thus, we
1195 | 	 * need to declare such a pointer.
1196 | 	 * 
1197 | 	 */
1198 | 
1199 | 	char *xPtr;
1200 | #ifdef  DEBUG
1201 | 	printf("\nca_get_text() function is called .....\n");
1202 | #endif	/* DEBUG */
1203 | 
1204 | 
1205 | 	/*
1206 | 	 * Look at the appropriate place in the dictionary; e.g.
1207 | 	 * CA_REPLYBANNER => the third element, index = 2.
1208 | 	 * 
1209 | 	 * if the varType is not CA_STRING, exit with an error;
1210 | 	 * 
1211 | 	 * otherwise, return the value.
1212 | 	 * 
1213 | 	 */
1214 | 
1215 | 	/* Look at the appropriate place in the dictionary. */
1216 | 
1217 | #ifdef DEBUG
1218 | 	printf("\nVariable type: %s\n", dictionary[symbol].varType);
1219 | #endif	/* DEBUG */
1220 | 
1221 | 	/* If the variable type is not CA_STRING, exit with an error. */
1222 | 	if (strcmp(dictionary[symbol].varType, "CA_STRING") != 0) {
1223 | 		fprintf(stderr, "Error: unexpected variable type.\n");
1224 | 		die;
1225 | 	}
1226 | 	else {
1227 | 		pthread_mutex_lock(&Lock);
1228 | 
1229 | 		/*
1230 | 		 * Test if a value for this variable has been defined.  If
1231 | 		 * yes, return a copy of it.  If not, return a NULL pointer.
1232 | 		 */
1233 | 		if (((GString *) confVars[symbol].valPtr)) {
1234 | 			xPtr = (strdup(((GString *) confVars[symbol].valPtr)->str));
1235 | #ifdef DEBUG
1236 | 			printf("Value: %s\n", xPtr);
1237 | #endif	/* DEBUG */
1238 | 		}
1239 | 		else {
1240 | #ifdef DEBUG
1241 | 			printf("STRING value is undefined !!!\n");
1242 | #endif	/* DEBUG */
1243 | 			xPtr = NULL;
1244 | 		}
1245 | 		pthread_mutex_unlock(&Lock);
1246 | 	}
1247 | 	return (xPtr);
1248 | }
1249 | 
1250 | 
1251 | int
1252 | ca_get_boolean(int symbol)
1253 | {
1254 | 	/**********************************************
1255 |          * ca_get_boolean()                  *
1256 |           *                               *
1257 |           *                              *
1258 |           * Parameters                      *
1259 |           *                              *
1260 |           *  symbol -- the symbol for the variable    *
1261 |          *                              *
1262 |           *                              *
1263 |           * Returns                        *
1264 |           *                              *
1265 |           *  1 if true, 0 if false.              *
1266 |          *                              *
1267 |          * Remarks                        *
1268 |           *                              *
1269 |          *   Is there a better way to implement     *
1270 |           *   Boolean values in C ?              *
1271 |          *                              *
1272 |           *********************************************/
1273 | 
1274 | 	int *xPtr;
1275 | 
1276 | 	/*
1277 | 	 * Print this message if in debug mode.
1278 | 	 * 
1279 | 	 */
1280 | #ifdef DEBUG
1281 | 	printf("\nca_get_boolean() function is called .....\n");
1282 | 	printf("DEBUG 5: New value of StringPtr: %s\n", globals[symbol].strPtr);
1283 | #endif	/* DEBUG  */
1284 | 
1285 | 	/**********************************************\
1286 |          *                              *
1287 |           * Here is how this works:              *
1288 |          *                               *
1289 |          * (a) Check that the type of variable whose   *
1290 |          *     value is being read is CA_BOOLEAN.    *
1291 |          *                              *
1292 |          * (b) Lock the value of the variable before  *
1293 |          *     reading it.                    *
1294 |          *                              *
1295 |          * (c) Depending on the scope of the variable  *
1296 |          *     look for it in the appropriate array.  *
1297 |          *                              *
1298 |           * (d) Read the value of the variable.      *
1299 |          *                              *
1300 |           * (e) Unlock the value of the variable after *
1301 |          *    reading it.                    *
1302 |           *                              *
1303 |          *                              *
1304 |          * Returns                        *
1305 |           *
1306 |           *  an integer value as follows:          *
1307 |           *    1 if the db is in testmode (true),              *
1308 |           *    0 if the db is not in testmode (false).          *
1309 |         \*********************************************/
1310 | 
1311 | 
1312 | 	/*
1313 | 	 * Look at the appropriate place in the dictionary; e.g. CA_BOOLEAN =
1314 | 	 * the fifth element of the dict_t array, => index = 4.
1315 | 	 * 
1316 | 	 * If the varType is not Boolean, exit with an error
1317 | 	 * 
1318 | 	 * Otherwise,
1319 | 	 * 
1320 | 	 */
1321 | 
1322 | #ifdef DEBUG
1323 | 	/* Look in the appropriate place in the dictionary. */
1324 | 	printf("\nVariable type: %s\n", dictionary[symbol].varType);
1325 | #endif	/* DEBUG */
1326 | 
1327 | 	/* If the variable type is not Boolean, exit with an error. */
1328 | 
1329 | 	if (strcmp(dictionary[symbol].varType, "CA_BOOLEAN") != 0) {
1330 | 		fprintf(stderr, "Error: Boolean type expected.\n");
1331 | 		die;
1332 | 	}
1333 | 
1334 | 	else {
1335 | 
1336 | 		/*
1337 | 		 * Otherwise, return an integer value.
1338 | 		 * 
1339 | 		 */
1340 | 
1341 | 		/*
1342 | 		 * Lock the value of the variable before reading it.
1343 | 		 * 
1344 | 		 */
1345 | 
1346 | 		pthread_mutex_lock(&Lock);
1347 | 		xPtr = confVars[symbol].valPtr;
1348 | 		/*
1349 | 		 * Unlock the value of the variable after reading it.
1350 | 		 */
1351 | 		pthread_mutex_unlock(&Lock);
1352 | 
1353 | 	}
1354 | 	if (xPtr == NULL) {
1355 | 		printf("Undefined Boolean variable: %s\n", dictionary[symbol].varName);
1356 | 		die;
1357 | 	}
1358 | 	return (*xPtr);
1359 | }
1360 | 
1361 | 
1362 | 
1363 | void
1364 | ca_set_int(int symbol)
1365 | {
1366 | 	/*********************************************
1367 |                * ca_set_int()                    *
1368 |               *                              *
1369 |                * Parameters                      *
1370 |                *    symbol -- the symbol for the variable.  *
1371 |                *                              *
1372 |                * Returns                        *
1373 |                *    1 if successful 0 if not ?          *
1374 |                *                              *
1375 |                * Remarks                        *
1376 |                *   Needs a better way to check for valid  *
1377 |               *    values from the keyboard.          *
1378 |                *                              *
1379 |                *********************************************/
1380 | 
1381 | 	/*
1382 | 	 * void *tempPtr;
1383 | 	 *//* Temp pointer to point to the value pointer in the appropriate
1384 | 	 * values array. */
1385 | 	char newPort[16];
1386 | 	int invalid;
1387 | 	int portNr;
1388 | 
1389 | 	/*
1390 | 	 * Function to change the value in a given values array. This
1391 | 	 * function can only be called from within ca_set_int().
1392 | 	 */
1393 | 	int *ca_change_int_value(char[]);
1394 | 	void testFunction(values_t values[]);
1395 | 
1396 | 	/*
1397 | 	 * Using the symbol, look at the appropriate place in the dictionary.
1398 | 	 */
1399 | #ifdef DEBUG
1400 | 	printf("\nca_set_int() function called .....\n");
1401 | 	printf("Variable type: %s\n", dictionary[symbol].varType);
1402 | #endif	/* DEBUG */
1403 | 
1404 | 
1405 | 	/*
1406 | 	 * Make sure that a reasonable, sensible value of bind-port has been
1407 | 	 * read from the keyboard.
1408 | 	 */
1409 | 
1410 | 	do {
1411 | 
1412 | 		/*
1413 | 		 * First, flush input stream.
1414 | 		 */
1415 | 		fflush(stdin);
1416 | 
1417 | 		/*
1418 | 		 * Prompt for the new value of the bind-port.
1419 | 		 */
1420 | 
1421 | 		printf("\nNew value of bind-port (non-zero positive integer) >>> ");
1422 | 		scanf("%s", newPort);
1423 | 		/*
1424 | 		 * gets(newPort);
1425 | 		 */
1426 | #ifdef DEBUG
1427 | 		printf("\nDEBUG: Value of newPort variable: %s\n", newPort);
1428 | #endif	/* DEBUG */
1429 | 
1430 | 		sscanf(newPort, "%d", &portNr);
1431 | 
1432 | #ifdef DEBUG
1433 | 		printf("\nDEBUG: Value of integer variable, portNr: %d\n", portNr);
1434 | #endif	/* DEBUG */
1435 | 
1436 | 		if (portNr < 0) {
1437 | 			invalid = 1;
1438 | 			puts("Only non-zero positive integer values accepted for bind-port");
1439 | 		}
1440 | 		else {
1441 | 			invalid = 0;
1442 | 		}
1443 | 
1444 | 	} while (invalid);
1445 | 
1446 | 	/*
1447 | 	 * Check that the function is attempting to set the correct type of
1448 | 	 * value.  If not, do not set the value and exit.
1449 | 	 */
1450 | 
1451 | 	if (strcmp(dictionary[symbol].varType, "CA_INT") != 0) {
1452 | 		fprintf(stderr, "Error: unexpected variable type.\n");
1453 | 		die;
1454 | 	}
1455 | 
1456 | 	/*
1457 | 	 * Choose the appropriate values array.
1458 | 	 */
1459 | 	switch (dictionary[symbol].varScope) {
1460 | 		/*
1461 | 		 * If the variable has global scope, write it into the
1462 | 		 * globals array. If it has local scope, write it into the
1463 | 		 * local array. If the scope cannot be found, then report an
1464 | 		 * error.
1465 | 		 */
1466 | 	case 1:
1467 | 		globals[symbol].valPtr = ca_change_int_value(newPort);
1468 | 
1469 |     /************************************************************
1470 | 		 *																				*
1471 | 		 * We comment out this code.  We use the GLib string 			*
1472 | 		 * now.  It also checks if we got the memory :-)				*
1473 | 		 *																				*
1474 |  	 ************************************************************/	
1475 | 
1476 | 		/*	
1477 | 		 * globals[symbol].strPtr = newPort;
1478 | 		 *
1479 | 		 * globals[symbol].strPtr = (char *) calloc(1, sizeof(newPort));
1480 | 		 */
1481 | 
1482 | 		/*
1483 | 		 * Check the return value of malloc() to make sure that we
1484 | 		 * actually got the memory.
1485 | 		 */
1486 | 
1487 | 		/*
1488 | 		 * if (globals[symbol].strPtr == NULL) {
1489 | 	    *		fprintf(stderr, "Cannot allocate memory for globals[symbol].strPtr.\n");
1490 | 	    *		die;
1491 | 		 * }
1492 | 		 */
1493 | 
1494 | #ifdef DEBUG
1495 | 		printf("DEBUG: New value of StringPtr: %s\n", globals[symbol].strPtr);
1496 | #endif	/* DEBUG */
1497 | 
1498 |     /*
1499 | 		 * strcpy(globals[symbol].strPtr, newPort);
1500 | 		 */
1501 | 
1502 | 	g_string_assign (globals[symbol].strPtr, newPort);
1503 | 
1504 | 
1505 | #ifdef DEBUG
1506 | 		printf("DEBUG 2: New value of StringPtr: %s\n", globals[symbol].strPtr);
1507 | #endif	/* DEBUG */
1508 | 		break;
1509 | 
1510 | 	case 99:
1511 | 		locals[symbol].valPtr = ca_change_int_value(newPort);
1512 | 		/*
1513 | 		 * First allocate some memory and then copy the value of the
1514 | 		 * new Port into it.
1515 | 		 */
1516 | 
1517 |     /************************************************************
1518 | 		 *																				*
1519 | 		 * We comment out this code.  We use the GLib string 			*
1520 | 		 * now.  It also checks if we got the memory :-)				*
1521 | 		 *																				*
1522 |  	 ************************************************************/	
1523 | 
1524 | 		/*
1525 | 		 * locals[symbol].strPtr = (char *) calloc(1, sizeof(newPort));
1526 | 		 */
1527 | 
1528 | 		/*
1529 | 		 * Now, check that the memory was actually allocated.
1530 | 		 */
1531 | 
1532 | 		/*
1533 | 		 * if (locals[symbol].strPtr == NULL) {
1534 | 	    *		fprintf(stderr, "Cannot allocate memory for locals[symbol].strPtr\n");
1535 | 		 *	 exit(8);
1536 | 		 * }
1537 |      * 
1538 | 		 * strcpy(locals[symbol].strPtr, newPort);
1539 | 		 */
1540 | 			
1541 | 		 g_string_assign (locals[symbol].strPtr, newPort);
1542 | 
1543 | 		/*
1544 | 		 * locals[symbol].strPtr = newPort;
1545 | 		 */
1546 | 		break;
1547 | 
1548 | 	default:
1549 | 		fprintf(stderr, "Error; unknown scope: %d\n", dictionary[symbol].varScope);
1550 | 		break;
1551 | 	}
1552 | 
1553 | 	/*
1554 | 	 * Write the new value of the variable to the correct place in this
1555 | 	 * array.  (First, set a mutex lock ???).
1556 | 	 */
1557 | 
1558 | 	/*
1559 | 	 * Write the new value of this variable back to the config. file
1560 | 	 */
1561 | 
1562 | 	ca_writeNewValue(symbol, newPort);
1563 | 
1564 | 	printf("DEBUG 3: New value of StringPtr: %s\n", (globals[symbol].strPtr)->str);
1565 | 
1566 | }
1567 | 
1568 | int *
1569 | ca_change_int_value(char value[])
1570 | {
1571 | 	void *tempPtr;
1572 | 
1573 | 	/*
1574 | 	 * Check the return value of malloc() in case we did not actually get
1575 | 	 * the memory.
1576 | 	 */
1577 | 	tempPtr = malloc(sizeof(int));
1578 | 	if (tempPtr == NULL) {
1579 | 		fprintf(stderr, "Cannot allocate memory for tempPtr\n");
1580 | 		die;
1581 | 	}
1582 | 
1583 | 	sscanf(value, "%d", (int *) tempPtr);
1584 | 	return (tempPtr);
1585 | }
1586 | 
1587 | 
1588 | 
1589 | void
1590 | testFunction(values_t array[])
1591 | {
1592 | 	printf("\nInside the Test function.\n");
1593 | }
1594 | 
1595 | 
1596 | void
1597 | ca_getDatabase(ca_database_t db)
1598 | {
1599 | 	printf("\n%s\t%d\t%s\t%s\t%s\n", db.host, db.port, db.user, db.password, db.dbName);
1600 | }
1601 | 
1602 | void
1603 | ca_getSource(ca_database_list_t src)
1604 | {
1605 | 	printf("\n%s\t%s\t%d\t%s\t%s\t%s\n", src.name, (src.db).host, (src.db).port, (src.db).user, (src.db).password, (src.db).dbName);
1606 | }
1607 | 
1608 | 
1609 | void
1610 | ca_getAllSources(GSList * sources)
1611 | {
1612 | 
1613 | 	GSList *currentPtr;	/* Pointer to the structure at which we look. */
1614 | 
1615 | 	/*
1616 | 	 * Look at the first member of the linked-list of sources.
1617 | 	 */
1618 | 	currentPtr = sources;
1619 | 
1620 | 	/*
1621 | 	 * Look at each data component of the source list, untill we reach
1622 | 	 * the end of the list.
1623 | 	 */
1624 | 	while (currentPtr != NULL) {
1625 | 		ca_database_list_t *srcPtr = currentPtr->data;
1626 | 		printf("\n%s\t%s\t%d\t%s\t%s\t%s\n", srcPtr->name, (srcPtr->db).host, (srcPtr->db).port, (srcPtr->db).user, (srcPtr->db).password, (srcPtr->db).dbName);
1627 | 		currentPtr = currentPtr->next;
1628 | 	}
1629 | }
1630 | 
1631 | void
1632 | ca_getAsource(char *sourceName, GSList * sources)
1633 | /*******************************************************************
1634 |  * ca_getAsource -- looks for a source in the linked list        *
1635 |  *                                            *
1636 |  * Parameters                                    *
1637 |   *  sourceName -- the name of a source for which to look         *
1638 |   *  sources -- the list of sources in which to look            *
1639 |  *                                            *
1640 |  * Returns                                      *
1641 |  *  nothing, so far.                                *
1642 |  *                                            *
1643 |  *******************************************************************/
1644 | {
1645 | 
1646 | 	GSList *currentPtr = sources;
1647 | 
1648 | #ifdef DEBUG
1649 | 	printf("\nLooking for source: %s\n", sourceName);
1650 | #endif	/* DEBUG */
1651 | 
1652 | 	/*
1653 | 	 * Look at each data component of the source list, compare the name
1654 | 	 * of the source with the sourceName untill we find the source o we
1655 | 	 * reach the end of the list
1656 | 	 */
1657 | 	{	/* Begin special block I got a syntax error when I defined
1658 | 		 * "ca_database_list_t *srcPtr = currentPtr->data;" in the
1659 | 		 * usual way, with all the other local variables.
1660 | 		 * 
1661 | 		 * However, if I define it inside this block, I do not get any
1662 | 		 * syntax errors.
1663 | 		 * 
1664 | 		 */
1665 | 
1666 | 
1667 | 		ca_database_list_t *srcPtr = currentPtr->data;
1668 | #ifdef DEBUG
1669 | 		printf("FirstSource is: %s\n", srcPtr->name);
1670 | #endif	/* DEBUG */
1671 | 		while ((currentPtr != NULL) && (strcmp(srcPtr->name, sourceName) != 0)) {
1672 | #ifdef DEBUG
1673 | 			puts("Now printing the current source .....");
1674 | 			printf("CurrentSource is: %s\n", srcPtr->name);
1675 | 			printf("%d\n", strcmp(srcPtr->name, sourceName));
1676 | 			if (strcmp(srcPtr->name, sourceName) == 0) {
1677 | 				printf("Found it !!! Source: %s\n", srcPtr->name);
1678 | 			}
1679 | #endif	/* DEBUG */
1680 | 			currentPtr = currentPtr->next;
1681 | 			puts("currentPtr = currentPtr->next");
1682 | 			if (currentPtr != NULL) {
1683 | 				srcPtr = currentPtr->data;
1684 | 				puts("srcPtr = currentPtr->data");
1685 | 			}
1686 | #ifdef DEBUG
1687 | 			puts("At the end of the while loop inside ca_getAsource function .....");
1688 | 			printf("The NewSource is: %s\n", srcPtr->name);
1689 | #endif	/* DEBUG */
1690 | 		}
1691 | #ifdef DEBUG
1692 | 		puts("Exited from while loop in ca_getAsource function .....");
1693 | #endif	/* DEBUG */
1694 | 
1695 | 		if (currentPtr != NULL) {
1696 | 			printf("\nFound the source: %s\n", srcPtr->name);
1697 | 			/*
1698 | 			 * printf("\n%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n",
1699 | 			 * srcPtr->name, (srcPtr->db).host,
1700 | 			 * (srcPtr->db).port, (srcPtr->db).user,
1701 | 			 * (srcPtr->db).password, (srcPtr->db).canupd,
1702 | 			 * (srcPtr->db).deflook, (srcPtr->db).dbName);
1703 | 			 */
1704 | 		}
1705 | 		else {
1706 | 			printf("\nCould not find source: %s\n", sourceName);
1707 | 		}
1708 | 	}	/* End special block */
1709 | 
1710 | }
1711 | 
1712 | 
1713 | ca_dbSource_t *
1714 | ca_getSourceDetails(char *sourceName, GSList * sources)
1715 | /*******************************************************************
1716 |  * ca_getSourceDetails                              *
1717 |  *   -- A function that compares each 'name' component of every     *
1718 |  *    ca_database_list_t element in the linked-list of sources    *
1719 |   *    (the first element of which is a parameter of this function)*
1720 |  *    with the name of the source to be found.  If the required  *
1721 |   *    source is found, a pointer to the structure representing   *
1722 |  *     this source is returned.                        *
1723 |   *                                            *
1724 |   *  Parameters                                    *
1725 |   *  --  sourceName - the name of the required source            *
1726 |   *  --  sources  - the list of sources in which to look          *
1727 |   *                                            *
1728 |  *   Returns                                      *
1729 |   *  -- srcPtr - a pointer to the structure representing the source  *
1730 |   *            - or a pointer to NULL, if we cannot find the source *
1731 |  *                                            *
1732 |  *******************************************************************/
1733 | {
1734 | 	/*
1735 | 	 * Define a pointer to the current element in the linked list.
1736 | 	 * Initialise it to the start of the list;
1737 | 	 */
1738 | 	GSList *currentPtr = sources;
1739 | 
1740 | 	/*
1741 | 	 * Define and initialise a pointer that points to the 'data'
1742 | 	 * component of the GSList struct; i.e. a pointer to a variable of
1743 | 	 * type ca_dbSource_t.
1744 | 	 */
1745 | 	ca_dbSource_t *srcPtr = currentPtr->data;
1746 | 
1747 | 
1748 | 	/*
1749 | 	 * Look at each data component of list of sources; (each data
1750 | 	 * component is a structure of type ca_dbSource_t i.e.
1751 | 	 * ca_database_list_t).  Compare the 'name' component of of each
1752 | 	 * ca_dbSource_t structure with the value of sourceName untill we get
1753 | 	 * a match or we reach the end of the list.
1754 | 	 */
1755 | 	/*
1756 | 	 * We first check if currentPtr is pointing to NULL; if yes, we exit
1757 | 	 * the while loop; if no, we make srcPtr point to the data component
1758 | 	 * of the current dbSource structure; then, we check if this is the
1759 | 	 * source name that we want; if yes, we _break_ from the while loop.
1760 | 	 */
1761 | 	while (currentPtr != NULL) {
1762 | 		srcPtr = currentPtr->data;
1763 | 		if (strcmp(srcPtr->name, sourceName) == 0)
1764 | 			break;
1765 | 		currentPtr = currentPtr->next;
1766 | 	}
1767 | 
1768 | 	/*
1769 | 	 * We return a pointer.  If we found the source, this pointer points
1770 | 	 * to the ca_dbSource_t structure which represents the source. If we
1771 | 	 * did not find the source, we return a pointer to NULL.
1772 | 	 */
1773 | 	if (currentPtr == NULL) {
1774 | 		srcPtr = NULL;
1775 | 		return (srcPtr);
1776 | 	}
1777 | 	else {
1778 | 		return (srcPtr);
1779 | 	}
1780 | 
1781 | } /* End of ca_getSourceDetails function */
1782 | 
1783 | 
1784 | ca_SrcHdl_t *
1785 | ca_get_SourceHandleByPosition(int position)
1786 | /*******************************************************************
1787 |  * ca_get_SourceHandleByPosition                        *
1788 |  *  -- retrieves the a handle to a Source                  *
1789 |  *                                            *
1790 |  * Parameters                                    *
1791 |  *  -- the position in the linked list of sources            *
1792 |  *                                            *
1793 |  *                                            *
1794 |   * Returns                                      *
1795 |   *  -- a pointer to the source or NULL                    *
1796 |  *    i.e. a pointer to the data component of the appropriate    *
1797 |  *    element in the linked list of sources.                *
1798 |  *******************************************************************/
1799 | {
1800 | 	ca_dbSource_t *mySource;
1801 | 
1802 | 	mySource = g_slist_nth_data(sourceList, position);
1803 | 	return (mySource);
1804 | }
1805 | 
1806 | ca_SrcHdl_t *
1807 | ca_get_SourceHandleByName(char *srcName)
1808 | /*******************************************************************
1809 |  * ca_get_SourceHandleByName                          *
1810 |  *  -- retrieves the a handle to a source                  *
1811 |  *                                            *
1812 |  * Parameters                                    *
1813 |  *  -- the name of the required source
1814 |  *                                            *
1815 |  *                                            *
1816 |   * Returns                                      *
1817 |   *  -- a pointer to the source or NULL                    *
1818 |  *    i.e. a pointer to the data component of the appropriate    *
1819 |  *    element in the linked list of sources.                *
1820 |  *******************************************************************/
1821 | 
1822 | {
1823 | 	ca_dbSource_t *mySource;
1824 | 
1825 | 	mySource = ca_getSourceDetails(srcName, sourceList);
1826 | 	return (mySource);
1827 | }
1828 | 
1829 | char *
1830 | ca_srchandle2Strelement(ca_SrcHdl_t * ah, int srcAttrib)
1831 | /*******************************************************************
1832 |   * ca_srchandle2Strelement                              *
1833 |   *  -- returns a string which represents the attribute of a source *
1834 |   *    e.g. returns the name of a source                  *
1835 |   *    It allocates the required memory;                  *
1836 |   *    but it returns NULL if the required memory cannot be       *
1837 |   *    allocated.
1838 |  *                                            *
1839 |   * Parameters                                     *
1840 |   *  --  source name - the name of the source
1841 |   *     ca_get_SourceHandleByName or ca_get_SourceHandleByPosition *
1842 |   *                                            *
1843 |   *  -- srcAttrib - an integer which represents the required       *
1844 |   *    attribute of the source.  We use #define statments to make  *
1845 |   *    a mapping between the attributes and the integers.        *
1846 |  *                                            *
1847 |   * Returns                                      *
1848 |   * -- a string or NULL                              *
1849 |  *******************************************************************/
1850 | {
1851 | 	char *myStr;
1852 | 	void ca_malloc(char *, int);
1853 | 
1854 | 	if (ah == NULL) {
1855 | 		fprintf(stderr, "ca_srchandle2Strelement(): Cannot dereference NULL pointer\n");
1856 | 		die;
1857 | 	}
1858 | 
1859 | 	pthread_mutex_lock(&Lock);
1860 | 	switch (srcAttrib) {
1861 | 	case 0:
1862 | 		/* source name */
1863 | 		myStr = strdup(ah->name);
1864 | 		break;
1865 | 
1866 | 	case 1:
1867 | 		/* canupd */
1868 | 		myStr = strdup(ah->canupd);
1869 | 		break;
1870 | 
1871 | 	case 2:
1872 | 		/* deflook */
1873 | 		/*
1874 | 		 * ca_malloc(myStr, 2); strcpy(myStr, (ah->db).deflook);
1875 | 		 */
1876 | 		myStr = strdup(ah->deflook);
1877 | 		break;
1878 | 
1879 | 	case 3:
1880 | 		/* machine */
1881 | 		myStr = strdup((ah->db).host);
1882 | 		break;
1883 | 
1884 | 	case 5:
1885 | 		/* user */
1886 | 		myStr = strdup((ah->db).user);
1887 | 		break;
1888 | 
1889 | 	case 6:
1890 | 		/* password */
1891 | 		myStr = strdup((ah->db).password);
1892 | 		break;
1893 | 
1894 | 	case 7:
1895 | 		/* dbName */
1896 | 		myStr = strdup((ah->db).dbName);
1897 | 		break;
1898 | 
1899 | 	case 9:
1900 | 		/* Near-Real-Time Mirror host */
1901 | 		myStr = strdup((ah->nrtm).host);
1902 | 		break;
1903 | 
1904 | 	case 11:
1905 | 		/* NRTM Log */
1906 | 		myStr = strdup((ah->nrtm).log);
1907 | 		break;
1908 | 
1909 | 	default:
1910 | 		puts("Cannot find this source attribute");
1911 | 		break;
1912 | 	}
1913 | 	pthread_mutex_unlock(&Lock);
1914 | 
1915 | 	return (myStr);
1916 | }
1917 | 
1918 | int
1919 | ca_srchandle2Intelement(ca_SrcHdl_t * ah, int srcAttrib)
1920 | /*******************************************************************
1921 |   * ca_srchandle2Intelement                            *
1922 |  *   -- a function that returns the integer value of the requested  *
1923 |  *     attribute of the given source.                    *
1924 |  *                                            *
1925 |  * Parameters                                    *
1926 |   *  --  source name - the name of the source
1927 |   *     ca_get_SourceHandleByName or ca_get_SourceHandleByPosition *
1928 |   *                                            *
1929 |   *  -- srcAttrib - an integer which represents the required       *
1930 |   *    attribute of the source.  We use #define statments to make  *
1931 |   *    a mapping between the attributes and the integers.        *
1932 |  *                                            *
1933 |  * Returns                                      *
1934 |   *  -- an integer.
1935 |   *******************************************************************/
1936 | {
1937 | 	int myInt;	/* The value of this integer is returned. */
1938 | 
1939 | 	if (ah == NULL) {
1940 | 		fprintf(stderr, "ca_srchandle2Intelement(): Cannot dereference NULL pointer\n");
1941 | 		die;
1942 | 	}
1943 | 
1944 | 	pthread_mutex_lock(&Lock);
1945 | 	switch (srcAttrib) {
1946 | 
1947 | 	case 4:
1948 | 		/* DB Port */
1949 | 		myInt = (ah->db).port;
1950 | 		break;
1951 | 
1952 | 	case 8:
1953 | 		/* Mode of Operation of the Source. */
1954 | 		myInt = ah->opMode;
1955 | 		break;
1956 | 
1957 | 	case 10:
1958 | 		/* Near-Real-Time Mirror port */
1959 | 		myInt = (ah->nrtm).port;
1960 | 		break;
1961 | 
1962 | 	case 12:
1963 | 		/* NRTM Delay */
1964 | 		myInt = (ah->nrtm).delay;
1965 | 		break;
1966 | 
1967 | 	case 13:
1968 | 		/* NRTM Protocol Version. */
1969 | 		myInt = (ah->nrtm).protocolVer;
1970 | 		break;
1971 | 
1972 | 	case 14:
1973 | 		/* Source Update Port */
1974 | 		myInt = ah->updPort;
1975 | 		break;
1976 | 
1977 | 	default:
1978 | 		fprintf(stderr, "Could not find source-attribute %d\n", srcAttrib);
1979 | 		die;
1980 | 		break;
1981 | 	}
1982 | 
1983 | 	pthread_mutex_unlock(&Lock);
1984 | 	return (myInt);
1985 | }
1986 | 
1987 | 
1988 | char *
1989 | ca_get_adminStrElement(int symbol, int adminAttrib)
1990 | /*******************************************************************
1991 |   * ca_adminStrElement
1992 |   *  -- returns a string which represents the attribute of a admin  *
1993 |  *     db
1994 |   *    e.g. returns the name of a host machine.               *
1995 |   *    It allocates the required memory;                  *
1996 |   *    but it returns NULL if the required memory cannot be       *
1997 |   *    allocated.
1998 |  *                                            *
1999 |   * Parameters                                     *
2000 |   *  -- symbol - the symbol of the variable
2001 |   *                                            *
2002 |   *  -- adminAttrib - an integer which represents the required       *
2003 |   *    attribute of the Admin db.  We use #define statements to   *
2004 |   *    make a mapping between the attributes and the integers.    *
2005 |  *                                            *
2006 |   * Returns                                      *
2007 |   * -- a string or NULL                              *
2008 |  *******************************************************************/
2009 | {
2010 | 	char *myStr;
2011 | 	void ca_malloc(char *, int);
2012 | 
2013 | 	/*
2014 | 	 * Make sure that we are calling the correct function.
2015 | 	 */
2016 | 	if (strcmp(dictionary[symbol].varType, "CA_ADMIN") != 0) {
2017 | 		fprintf(stderr, "Error: unexpected variable type.\n");
2018 | 		die;
2019 | 	}
2020 | 	else {
2021 | 		pthread_mutex_lock(&Lock);
2022 | 		switch (adminAttrib) {
2023 | 		case 0:
2024 | 			/* admin host */
2025 | 			myStr = strdup(((ca_ripadmin_t *) confVars[symbol].valPtr)->host);
2026 | 			break;
2027 | 
2028 | 		case 2:
2029 | 			/* User */
2030 | 			myStr = strdup(((ca_ripadmin_t *) confVars[symbol].valPtr)->user);
2031 | 			break;
2032 | 
2033 | 		case 3:
2034 | 			/* password */
2035 | 			myStr = strdup(((ca_ripadmin_t *) confVars[symbol].valPtr)->password);
2036 | 			break;
2037 | 
2038 | 		case 4:
2039 | 			/* tableName */
2040 | 			myStr = strdup(((ca_ripadmin_t *) confVars[symbol].valPtr)->tableName);
2041 | 			break;
2042 | 
2043 | 		default:
2044 | 			puts("Cannot find this admin attribute");
2045 | 			die;
2046 | 			break;
2047 | 		}
2048 | 		pthread_mutex_unlock(&Lock);
2049 | 
2050 | 	}
2051 | 	return (myStr);
2052 | }
2053 | 
2054 | int
2055 | ca_get_adminIntElement(int symbol, int adminAttrib)
2056 | /*
2057 |  * Returns an int element of the admin db structure.
2058 |  */
2059 | {
2060 | 	int myInt;	/* The value of this integer is returned. */
2061 | 
2062 | 	pthread_mutex_lock(&Lock);
2063 | 	switch (adminAttrib) {
2064 | 	case 1:
2065 | 		/* Port number */
2066 | 		myInt = ((ca_ripadmin_t *) confVars[symbol].valPtr)->port;
2067 | 		break;
2068 | 
2069 | 	default:
2070 | 		puts("Cannot find this admin attribute");
2071 | 		die;
2072 | 		break;
2073 | 	}
2074 | 	pthread_mutex_unlock(&Lock);
2075 | 
2076 | 	return (myInt);
2077 | }
2078 | 
2079 | void
2080 | ca_malloc(char *someStr, int memSize)
2081 | /*******************************************************************
2082 |   * ca_malloc                                      *
2083 |   *  -- a function that allocates memory for a string          *
2084 |   *                                            *
2085 |  * Parameters                                    *
2086 |   * --someStr  - the string that is to be created              *
2087 |   *   memSize- required amount of memory in bytes              *
2088 |   *                                            *
2089 |   * Returns                                      *
2090 |   * -- nothing; it assigns the allocated memory to the pointer     *
2091 |  *   that was passed to it.                            *
2092 |   *                                            *
2093 |   *******************************************************************/
2094 | {
2095 | 	someStr = malloc(memSize);
2096 | 
2097 | 	/*
2098 | 	 * Check that we actually did get the memory ....
2099 | 	 */
2100 | 	if (someStr == NULL) {
2101 | 		fprintf(stderr, "ca_malloc(): cannot allocate memory !!!\n");
2102 | 		exit(8);
2103 | 	}
2104 | }
2105 | 
2106 | void
2107 | ca_set_boolean(int symbol)
2108 | {
2109 | 	/*************************************************************
2110 |          *                                        *
2111 |          * ca_set_boolean()                            *
2112 |          *                                         *
2113 |           *                                        *
2114 |          * Parameters                                *
2115 |          *                                        *
2116 |           *   symbol -- the symbol for the variable.              *
2117 |          *                                        *
2118 |           *                                        *
2119 |           * Returns                                  *
2120 |           *                                        *
2121 |           *     nothing                                *
2122 |          *                                        *
2123 |           *                                        *
2124 |          * Remarks                                  *
2125 |           *                                        *
2126 |           *   Must check that a sensible value is given as input.    *
2127 |           *                                        *
2128 |           *                                        *
2129 |           *************************************************************/
2130 | 
2131 | 
2132 | 	char newTestmodeStr[2];
2133 | 	int newTestmodeVal;	/* The new value of the testmode variable. */
2134 | 	int invalid;	/* Flag to indicate an invalid new value.  */
2135 | 
2136 | 	FILE *testPtr, *tempPtr;	/* The pointer to the files. */
2137 | 	char name[STRLENGTH];	/* The name of the variable. */
2138 | 	char value[STRLENGTH];	/* The value of the variable. */
2139 | 
2140 | 	/*
2141 | 	 * Function to change the value in a given values array. This
2142 | 	 * function can only be called from within ca_set_boolean().
2143 | 	 */
2144 | 	int *ca_change_int_value(char[]);
2145 | 
2146 | 
2147 | 	/*
2148 | 	 * Using the symbol, look at the appropriate place in the dictionary.
2149 | 	 */
2150 | #ifdef DEBUG
2151 | 	printf("\nca_set_int() function called .....\n");
2152 | 	printf("Variable type: %s\n", dictionary[symbol].varType);
2153 | #endif	/* DEBUG */
2154 | 
2155 | 	/*
2156 | 	 * Check that the function is attempting to set the correct type of
2157 | 	 * value.  If not, do not set the value, but exit instead.
2158 | 	 */
2159 | 
2160 | 	if (strcmp(dictionary[symbol].varType, "CA_BOOLEAN") != 0) {
2161 | 		fprintf(stderr, "Error: CA_BOOLEAN data type expected.\n");
2162 | 		die;
2163 | 	}
2164 | 
2165 | 	/*
2166 | 	 * First, flush the input stream.
2167 | 	 */
2168 | 	fflush(stdin);
2169 | 
2170 | 
2171 | 	/*
2172 | 	 * Make sure that a reasonable, sensible value of bind-port has been
2173 | 	 * read from the keyboard.
2174 | 	 */
2175 | 
2176 | 	do {
2177 | 		/*
2178 | 		 * Prompt for the new value of the testmode.
2179 | 		 */
2180 | 
2181 | 		printf("\nNew value of testmode (0 or 1) >>> ");
2182 | 		scanf("%s", newTestmodeStr);
2183 | 
2184 | 		/*
2185 | 		 * We scanf() the value as a string, but we want it to be an
2186 | 		 * integer.  Thus, we use sscanf() to scanf the value from
2187 | 		 * the string-variable and store it as an integer in an
2188 | 		 * integer variable.
2189 | 		 */
2190 | 		sscanf(newTestmodeStr, "%d", &newTestmodeVal);
2191 | 
2192 | 		/*
2193 | 		 * We only change the testmode when the user is absolutely
2194 | 		 * sure that they want to change.  Thus, we only accept two
2195 | 		 * possible values for testmode.
2196 | 		 */
2197 | 
2198 | 		if ((newTestmodeVal < 0) || (newTestmodeVal > 1)) {
2199 | 			invalid = 1;
2200 | 			puts("Only '0' or '1' accepted as value for testmode.");
2201 | 		}
2202 | 		else {
2203 | 			invalid = 0;
2204 | 		}
2205 | 	} while (invalid);
2206 | 
2207 | 
2208 | 	/*
2209 | 	 * Lock the value of the variable before changing it.
2210 | 	 */
2211 | 
2212 | 	pthread_mutex_lock(&Lock);
2213 | 
2214 | 
2215 | 	/*
2216 | 	 * Choose the appropriate values array.
2217 | 	 */
2218 | 
2219 | 	switch (dictionary[symbol].varScope) {
2220 | 		/*
2221 | 		 * If the variable has global scope, write it into the
2222 | 		 * globals array. If it has local scope, write it into the
2223 | 		 * local array. If the scope cannot be found, then report an
2224 | 		 * error.
2225 | 		 */
2226 | 
2227 |     /************************************************************
2228 | 		 *																				*
2229 | 		 * We comment out this code.  We use the GLib string 			*
2230 | 		 * now.  It also checks if we got the memory :-)				*
2231 | 		 *																				*
2232 |  	 ************************************************************/	
2233 | 
2234 | 	case 1:
2235 | 		globals[symbol].valPtr = ca_change_int_value(newTestmodeStr);
2236 | 		/*
2237 | 		 * globals[symbol].strPtr = newTestmodeStr;
2238 | 		 */
2239 | 		g_string_assign(globals[symbol].strPtr, newTestmodeStr);
2240 | 		break;
2241 | 
2242 | 	case 99:
2243 | 		locals[symbol].valPtr = ca_change_int_value(newTestmodeStr);
2244 | 		/*
2245 | 		 * locals[symbol].strPtr = newTestmodeStr;
2246 | 		 */
2247 | 		g_string_assign(locals[symbol].strPtr, newTestmodeStr);	
2248 | 		break;
2249 | 
2250 | 	default:
2251 | 		fprintf(stderr, "Error: unknown scope: %d\n", dictionary[symbol].varScope);
2252 | 		break;
2253 | 	}
2254 | 
2255 | 	/*
2256 | 	 * Write the new value of this variable back to the config file.
2257 | 	 * 
2258 | 	 * To be implemented.
2259 | 	 */
2260 | 
2261 | 	/*
2262 | 	 * Find the actual name of the variable from the dictionary structure
2263 | 	 * (use the variable symbol as an index into the array of dictionary
2264 | 	 * structures.
2265 | 	 */
2266 | 
2267 | 	printf("Name of variable to be changed: %s\n", dictionary[symbol].varName);
2268 | 	printf("Type of variable to be changed: %s\n", dictionary[symbol].varType);
2269 | 
2270 | 	/*
2271 | 	 * Open the test config file for reading .....
2272 | 	 */
2273 | 	if ((testPtr = fopen(testFile, "r")) == NULL) {
2274 | 		printf("File \"%s\" could not be opened.\n", testFile);
2275 | 		die;
2276 | 	}
2277 | 
2278 | 	/*
2279 | 	 * Open the temporary file for writing .....
2280 | 	 */
2281 | 	if ((tempPtr = fopen(tempFile, "w")) == NULL) {
2282 | 		printf("File \"%s\" could not be opened.\n", tempFile);
2283 | 		die;
2284 | 	}
2285 | 
2286 | 	/*
2287 | 	 * Read the first record in the test config file.
2288 | 	 */
2289 | 
2290 | 	fscanf(testPtr, "%s", name);
2291 | 	fgets(value, sizeof(value), testPtr);
2292 | 
2293 | 	/*
2294 | 	 * If the last character of "value" is '\n', replace it with '\0'.
2295 | 	 */
2296 | 	if (value[strlen(value) - 1] == '\n') {
2297 | 		printf("The value string is %s", value);
2298 | 		printf("Replacing last character of \"%s\" with the NULL character\n", name);
2299 | 		value[strlen(value) - 1] = '\0';
2300 | 		printf("The new value string is %s", value);
2301 | 	}
2302 | 
2303 | 
2304 | 	/*
2305 | 	 * While there are records to be read in the test config file: Write
2306 | 	 * the current record into the temporary file. Read the next record
2307 | 	 * in the config file. Repeat untill the EOF has been reached.
2308 | 	 */
2309 | 
2310 | 	while (!feof(testPtr)) {
2311 | 		fprintf(tempPtr, "%s %s\n", name, value);
2312 | 		fscanf(testPtr, "%s", name);
2313 | 		fgets(value, sizeof(value), testPtr);
2314 | 
2315 | 		/*
2316 | 		 * If the last character of "value" is '\n', replace it with
2317 | 		 * '\0'.
2318 | 		 */
2319 | 		if (value[strlen(value) - 1] == '\n') {
2320 | 			printf("The last character of the value string is %c", value[strlen(value) - 1]);
2321 | 			printf("The value string is %s", value);
2322 | 			printf("Replacing last character of \"%s\" with the NULL character\n", name);
2323 | 			value[strlen(value) - 1] = '\0';
2324 | 			printf("The new value string is %s", value);
2325 | 		}
2326 | 
2327 | 
2328 | 		/*
2329 | 		 * if we read the variable that we want to change, stop
2330 | 		 * reading this file and print only the name of this variable
2331 | 		 * to the temporary file.
2332 | 		 */
2333 | 
2334 | 		/*
2335 | 		 * If we read the variable that we want to change, replace
2336 | 		 * the value of this variable in the config file with the
2337 | 		 * value supplied from the keyboard.
2338 | 		 * 
2339 | 		 */
2340 | 		if (strcmp(name, dictionary[symbol].varName) == 0) {
2341 | 			strcpy(value, newTestmodeStr);
2342 | 			printf("The replacement string is %s", value);
2343 | 		}
2344 | 		/*
2345 | 		 * Flush the pointer to the test config file.
2346 | 		 */
2347 | 		fflush(testPtr);
2348 | 
2349 | 	}
2350 | 	/*
2351 | 	 * Here ends the loop that writes the config file, with the new
2352 | 	 * variable, to the temporary file.
2353 | 	 */
2354 | 
2355 | 	/*
2356 | 	 * While !(the record to be updated) BEGIN Write the record to the
2357 | 	 * temporary file Read the next record in the config file END
2358 | 	 * 
2359 | 	 * Write the new value to the temporary file Read the next record in the
2360 | 	 * config file COMMENT: this is the record to be updated. COMMENT:
2361 | 	 * discard this record.
2362 | 	 * 
2363 | 	 * Read the next record in the config file
2364 | 	 * 
2365 | 	 * While !(EOF) BEGIN write the record to the temporary file read the
2366 | 	 * next record in the config file END
2367 | 	 * 
2368 | 	 * Close Config file Close Temporary file
2369 | 	 * 
2370 | 	 * Open Temporary file for reading Open Config file for writing
2371 | 	 * 
2372 | 	 * Read the next record of the Temporary file
2373 | 	 * 
2374 | 	 * While (!EOF of Temporary file) BEGIN write the record into the Config
2375 | 	 * file read the next record of the Temporary file END
2376 | 	 * 
2377 | 	 * Close Temporary file Close Config file
2378 | 	 * 
2379 | 	 */
2380 | 
2381 | 	fclose(testPtr);
2382 | 	fclose(tempPtr);
2383 | 
2384 | 	/*
2385 | 	 * Now, flush the file pointers
2386 | 	 */
2387 | 	fflush(testPtr);
2388 | 	fflush(tempPtr);
2389 | 
2390 | 	/*
2391 | 	 * Open the temporary file for reading. Open the config file for
2392 | 	 * writing. Write the contents of the temporary file into the config
2393 | 	 * file.
2394 | 	 */
2395 | 
2396 | 	/*
2397 | 	 * Open the temporary file for reading .....
2398 | 	 */
2399 | 	if ((tempPtr = fopen(tempFile, "r")) == NULL) {
2400 | 		printf("File \"%s\" could not be opened for reading.\n", tempFile);
2401 | 		die;
2402 | 	}
2403 | 
2404 | 	/*
2405 | 	 * Open the config file for writing .....
2406 | 	 */
2407 | 	if ((testPtr = fopen(testFile, "w")) == NULL) {
2408 | 		printf("File \"%s\" could not be opened for writing.\n", testFile);
2409 | 		die;
2410 | 	}
2411 | 
2412 | 	/*
2413 | 	 * Read the first record in the temporary file.
2414 | 	 */
2415 | 
2416 | 	fscanf(tempPtr, "%s", name);
2417 | 	fgets(value, sizeof(value), tempPtr);
2418 | 	printf("\nFIRST LINE: %s %s", name, value);
2419 | 
2420 | 
2421 | 	/*
2422 | 	 * While there are records to be read in the temporary file: Write
2423 | 	 * the current record into the test config file. Read the next record
2424 | 	 * in the temporary file. Repeat untill the EOF has been reached.
2425 | 	 */
2426 | 
2427 | 	while (!feof(tempPtr)) {
2428 | 		fprintf(testPtr, "%s %s", name, value);
2429 | 		fscanf(tempPtr, "%s", name);
2430 | 		fgets(value, sizeof(value), tempPtr);
2431 | 	}
2432 | 
2433 | 	fclose(testPtr);
2434 | 	fclose(tempPtr);
2435 | 
2436 | 	/*
2437 | 	 * Unlock the value of the variable after setting it and writing the
2438 | 	 * new value back to the configuration (and the dictionary) file.
2439 | 	 * 
2440 | 	 */
2441 | 	pthread_mutex_unlock(&Lock);
2442 | 
2443 | }
2444 | 
2445 | 
2446 | void
2447 | ca_set_dirlist(int symbol)
2448 | {
2449 | 	/****************************************************************
2450 |           * ca_set_dirlist()                              *
2451 |          *                                          *
2452 |          * Parameters                                    *
2453 |           *    symbol -- the symbol of the variable.              *
2454 |          *                                          *
2455 |          * Returns                                    *
2456 |           *    1 if successful, 0 if not successful.              *
2457 |           *                                          *
2458 |           * Remarks                                    *
2459 |          *    Writing the new value back to the config file has yet to *
2460 |           *    be implemented.                            *
2461 |          *                                          *
2462 |           ****************************************************************/
2463 | 
2464 | 	char newDir[80];
2465 | 	/*
2466 | 	 * Declare a pointer to a values_t variable. Later, we shall assign
2467 | 	 * this pointer to the first element of either the globals or the
2468 | 	 * locals array, as appropriate.
2469 | 	 */
2470 | 	values_t *hereValues;
2471 | 
2472 | 	/*
2473 | 	 * Using the symbol, look in the appropriate place in the dictionary.
2474 | 	 */
2475 | #ifdef DEBUG
2476 | 	printf("\nca_set_dirlist() function called ..... \n");
2477 | 	printf("Variable type: %s\n", dictionary[symbol].varType);
2478 | #endif
2479 | 
2480 | 	/*
2481 | 	 * First, flush the input stream.
2482 | 	 */
2483 | 	fflush(stdin);
2484 | 
2485 | 	/*
2486 | 	 * Prompt for the new value of the directory.
2487 | 	 */
2488 | 	printf("\nNew value of %s [80 characters, maximum] >>> ", dictionary[symbol].varName);
2489 | 	scanf("%s", newDir);
2490 | 
2491 | 	/*
2492 | 	 * Make sure that a reasonable, sensible value of the directory value
2493 | 	 * has been read from the keyboard.
2494 | 	 * 
2495 | 	 * How do we implement this ???
2496 | 	 * 
2497 | 	 */
2498 | 
2499 | 
2500 | 	/*
2501 | 	 * Make sure that the function is attempting to set the correct type
2502 | 	 * of value.  If not, do not set the value - and exit.
2503 | 	 */
2504 | 
2505 | 	if (strcmp(dictionary[symbol].varType, "CA_DIRLIST") != 0) {
2506 | 		fprintf(stderr, "Error: unexpected variable type.\n");
2507 | 		exit(51);
2508 | 	}
2509 | 
2510 | 	/*
2511 | 	 * Choose the appropriate values array. Assign a temporary pointer to
2512 | 	 * this array.
2513 | 	 */
2514 | 
2515 | 	switch (dictionary[symbol].varScope) {
2516 | 		/*
2517 | 		 * If the variable has global scope, write it into the
2518 | 		 * globals array. If it has local scope, write it into the
2519 | 		 * locals array. If the scope cannot be found, report an
2520 | 		 * error.
2521 | 		 */
2522 | 	case 1:
2523 | 		hereValues = globals;
2524 | 		break;
2525 | 
2526 | 	case 99:
2527 | 		hereValues = locals;
2528 | 		break;
2529 | 
2530 | 	default:
2531 | 		fprintf(stderr, "Error: Unknown scope: %d\n", dictionary[symbol].varScope);
2532 | 		break;
2533 | 	}
2534 | 
2535 | 
2536 | 	/*
2537 | 	 * Check for the presence of the mutex lock: if present, wait until
2538 | 	 * it is available; else get the lock and proceed with the change of
2539 | 	 * value.
2540 | 	 */
2541 | 
2542 | 	/*
2543 | 	 * Write the new value of the variable to the correct place in the
2544 | 	 * [appropriate] values array.
2545 | 	 * 
2546 | 	 * Note that there is a check to see if malloc() actually worked .....
2547 | 	 */
2548 | 
2549 | 	hereValues[symbol].valPtr = (char *) malloc(80);
2550 | 	if (hereValues[symbol].valPtr == NULL) {
2551 | 		fprintf(stderr, "Cannot alllocate memory for hereValuesvlPtr\n");
2552 | 		die;
2553 | 	}
2554 | 	strcpy(hereValues[symbol].valPtr, newDir);
2555 | 
2556 | 
2557 |     /************************************************************
2558 | 		 *																				*
2559 | 		 * We comment out this code.  We use the GLib string 			*
2560 | 		 * now.  It also checks if we got the memory :-)				*
2561 | 		 *																				*
2562 |  	 ************************************************************/	
2563 |  /*
2564 | 	 * hereValues[symbol].strPtr = (char *) malloc(sizeof(newDir));
2565 | 	 * if (hereValues[symbol].strPtr == NULL) {
2566 |   *		fprintf(stderr, "Cannot alllocate memory for hereValuestPtr\n");
2567 | 	 *	die;
2568 | 	 * }
2569 | 	 * strcpy(hereValues[symbol].strPtr, newDir);
2570 | 	 */
2571 |  g_string_assign(hereValues[symbol].strPtr, newDir);
2572 | 
2573 | 	/*
2574 | 	 * Free the temporary pointer, hereValues.
2575 | 	 * 
2576 | 	 */
2577 | 	free(hereValues);
2578 | 	hereValues = NULL;
2579 | 
2580 | 	/*
2581 | 	 * Release the mutex lock.
2582 | 	 */
2583 | 
2584 | 	/*
2585 | 	 * Write the new value of this variable back to the config file.
2586 | 	 */
2587 | 
2588 | }
2589 | 
2590 | 
2591 | void
2592 | ca_set_string(int symbol)
2593 | {
2594 | 
2595 | 	/****************************************************************
2596 |           * ca_set_string()                              *
2597 |          *                                          *
2598 |          * Parameters                                    *
2599 |           *    symbol -- the symbol of the variable.              *
2600 |          *                                          *
2601 |          * Returns                                    *
2602 |           *    1 if successful, 0 if not successful ?              *
2603 |           *                                          *
2604 |           * Remarks                                    *
2605 |          *    Writing the new value back to the config file has yet to *
2606 |           *    be implemented.                            *
2607 |          *                                          *
2608 |           ****************************************************************/
2609 | 
2610 | 	char newString[80];	/* May need to make this bigger. */
2611 | 
2612 | 	/*
2613 | 	 * Declare a pointer to a values_t variable. Later, we shall assign
2614 | 	 * this pointer to the first element of either the globals or the
2615 | 	 * locals array, as appropriate.
2616 | 	 */
2617 | 	values_t *hereValues;
2618 | 
2619 | 	/*
2620 | 	 * Using the symbol, look in the appropriate place in the dictionary.
2621 | 	 */
2622 | #ifdef DEBUG
2623 | 	printf("\nca_set_string() function called ..... \n");
2624 | 	printf("Variable type: %s\n", dictionary[symbol].varType);
2625 | #endif
2626 | 
2627 | 	/*
2628 | 	 * First, flush the input stream.
2629 | 	 */
2630 | 	fflush(stdin);
2631 | 
2632 | 	/*
2633 | 	 * Prompt for the new value of the string.
2634 | 	 */
2635 | 	printf("\nNew value of %s [80 characters, maximum] >>> ", dictionary[symbol].varName);
2636 | 	gets(newString);
2637 | 
2638 | 	/*
2639 | 	 * Make sure that a reasonable, sensible value of the string value
2640 | 	 * has been read from the keyboard.
2641 | 	 * 
2642 | 	 * How do we implement this ???
2643 | 	 * 
2644 | 	 */
2645 | 
2646 | 
2647 | 	/*
2648 | 	 * Make sure that the function is attempting to set the correct type
2649 | 	 * of value.  If not, do not set the value - and exit.
2650 | 	 */
2651 | 
2652 | 	if (strcmp(dictionary[symbol].varType, "CA_STRING") != 0) {
2653 | 		fprintf(stderr, "Error: unexpected variable type.\n");
2654 | 		exit(51);
2655 | 	}
2656 | 
2657 | 	/*
2658 | 	 * Choose the appropriate values array. Assign a temporary pointer to
2659 | 	 * this array.
2660 | 	 */
2661 | 
2662 | 	switch (dictionary[symbol].varScope) {
2663 | 		/*
2664 | 		 * If the variable has global scope, write it into the
2665 | 		 * globals array. If it has local scope, write it into the
2666 | 		 * locals array. If the scope cannot be found, report an
2667 | 		 * error.
2668 | 		 */
2669 | 	case 1:
2670 | 		hereValues = globals;
2671 | 		break;
2672 | 
2673 | 	case 99:
2674 | 		hereValues = locals;
2675 | 		break;
2676 | 
2677 | 	default:
2678 | 		fprintf(stderr, "Error: Unknown scope: %d\n", dictionary[symbol].varScope);
2679 | 		break;
2680 | 	}
2681 | 
2682 | 
2683 | 	/*
2684 | 	 * Check for the presence of the mutex lock: if present, wait until
2685 | 	 * it is available; else get the lock and proceed with the change of
2686 | 	 * value.
2687 | 	 */
2688 | 	pthread_mutex_lock(&Lock);
2689 | 
2690 | 	/*
2691 | 	 * Write the new value of the variable to the correct place in the
2692 | 	 * [appropriate] values array. Note the check to the return value of
2693 | 	 * malloc() to see if the memory was actually obtained.
2694 | 	 */
2695 | 
2696 | 	hereValues[symbol].valPtr = (char *) malloc(80);
2697 | 	if (hereValues[symbol].valPtr == NULL) {
2698 | 		fprintf(stderr, "Cannot allocate memory for hereValues[symbol].valPtr\n");
2699 | 		die;
2700 | 	}
2701 | 	strcpy(hereValues[symbol].valPtr, newString);
2702 | 
2703 | 
2704 |     /************************************************************
2705 | 		 *																				*
2706 | 		 * We comment out this code.  We use the GLib string 			*
2707 | 		 * now.  It also checks if we got the memory :-)				*
2708 | 		 *																				*
2709 |  	 ************************************************************/	
2710 |  /*
2711 | 	 * hereValues[symbol].strPtr = (char *) malloc(sizeof(newString));
2712 | 	 * if (hereValues[symbol].strPtr == NULL) {
2713 | 	 *	fprintf(stderr, "Cannot allocate memory for hereValues[symbol].strPtr\n");
2714 |   *		die;
2715 | 	 * }
2716 | 	 * strcpy(hereValues[symbol].strPtr, newString);
2717 |   */
2718 | 
2719 | g_string_assign(hereValues[symbol].strPtr, newString);
2720 | 
2721 | 	/*
2722 | 	 * Free the temporary pointer, hereValues.
2723 | 	 * 
2724 | 	 */
2725 | 	free(hereValues);
2726 | 	hereValues = NULL;
2727 | 
2728 | 	/*
2729 | 	 * Release the mutex lock.
2730 | 	 */
2731 | 	pthread_mutex_unlock(&Lock);
2732 | 
2733 | 	/*
2734 | 	 * Write the new value of this variable back to the config file.
2735 | 	 * Implement this later ?
2736 | 	 */
2737 | 
2738 | }
2739 | 
2740 | 
2741 | int
2742 | ca_writeNewValue(int dictSymbol, char *newValue)
2743 | {
2744 | 
2745 | 	FILE *confPtr;	/* Pointer to config file */
2746 | 	FILE *tempPtr;	/* The pointer to temp file. */
2747 | 	char name[STRLENGTH];	/* The name of the variable. */
2748 | 	char value[STRLENGTH];	/* The value of the variable. */
2749 | 
2750 | 
2751 | 	/*
2752 | 	 * Find the actual name of the variable from the dictionary structure
2753 | 	 * (use the variable symbol as an index into the array of dictionary
2754 | 	 * structures.
2755 | 	 */
2756 | #ifdef DEBUG
2757 | 	printf("Name of variable to be changed: %s\n", dictionary[dictSymbol].varName);
2758 | 	printf("Type of variable to be changed: %s\n", dictionary[dictSymbol].varType);
2759 | #endif	/* DEBUG */
2760 | 
2761 | 	/*
2762 | 	 * Open the test config file for reading .....
2763 | 	 */
2764 | 	if ((confPtr = fopen(testFile, "r")) == NULL) {
2765 | 		printf("File \"%s\" could not be opened.\n", testFile);
2766 | 		die;
2767 | 	}
2768 | 
2769 | 	/*
2770 | 	 * Open the temporary file for writing .....
2771 | 	 */
2772 | 	if ((tempPtr = fopen(tempFile, "w")) == NULL) {
2773 | 		printf("File \"%s\" could not be opened.\n", tempFile);
2774 | 		die;
2775 | 	}
2776 | 
2777 | 	/*
2778 | 	 * Read the first record in the test config file.
2779 | 	 */
2780 | 
2781 | 	fscanf(confPtr, "%s", name);
2782 | 	fgets(value, sizeof(value), confPtr);
2783 | 
2784 | 	/*
2785 | 	 * If the last character of "value" is '\n', replace it with '\0'.
2786 | 	 */
2787 | 	if (value[strlen(value) - 1] == '\n') {
2788 | #ifdef DEBUG
2789 | 		printf("The value string is %s", value);
2790 | 		printf("Replacing last character of \"%s\" with the NULL character\n", name);
2791 | #endif	/* DEBUG */
2792 | 
2793 | 		value[strlen(value) - 1] = '\0';
2794 | 
2795 | #ifdef DEBUG
2796 | 		printf("The new value string is %s", value);
2797 | #endif	/* DEBUG */
2798 | 	}
2799 | 
2800 | 	/*
2801 | 	 * If we read the variable that we want to change, replace the value
2802 | 	 * of this variable in the config file with the value supplied from
2803 | 	 * the keyboard.
2804 | 	 * 
2805 | 	 */
2806 | 	if (strcmp(name, dictionary[dictSymbol].varName) == 0) {
2807 | 		strcpy(value, newValue);
2808 | 
2809 | #ifdef DEBUG
2810 | 		printf("The replacement string is %s", value);
2811 | #endif	/* DEBUG */
2812 | 	}
2813 | 
2814 | 	/*
2815 | 	 * While there are records to be read in the test config file: Write
2816 | 	 * the current record into the temporary file. Read the next record
2817 | 	 * in the config file. Repeat untill the EOF has been reached.
2818 | 	 */
2819 | 
2820 | 	while (!feof(confPtr)) {
2821 | 		fprintf(tempPtr, "%s %s\n", name, value);
2822 | 		fscanf(confPtr, "%s", name);
2823 | 		fgets(value, sizeof(value), confPtr);
2824 | 
2825 | 		/*
2826 | 		 * If the last character of "value" is '\n', replace it with
2827 | 		 * '\0'.
2828 | 		 */
2829 | 		if (value[strlen(value) - 1] == '\n') {
2830 | #ifdef DEBUG
2831 | 			printf("The last character of the value string is %c", value[strlen(value) - 1]);
2832 | 			printf("The value string is %s", value);
2833 | 			printf("Replacing last character of \"%s\" with the NULL character\n", name);
2834 | #endif	/* DEBUG */
2835 | 
2836 | 			value[strlen(value) - 1] = '\0';
2837 | #ifdef DEBUG
2838 | 			printf("The new value string is %s", value);
2839 | #endif	/* DEBUG */
2840 | 		}
2841 | 
2842 | 
2843 | 		/*
2844 | 		 * If we read the variable that we want to change, replace
2845 | 		 * the value of this variable in the config file with the
2846 | 		 * value supplied from the keyboard.
2847 | 		 * 
2848 | 		 */
2849 | 		if (strcmp(name, dictionary[dictSymbol].varName) == 0) {
2850 | 			strcpy(value, newValue);
2851 | 
2852 | #ifdef DEBUG
2853 | 			printf("The replacement string is %s", value);
2854 | #endif	/* DEBUG */
2855 | 		}
2856 | 
2857 | 		/*
2858 | 		 * Flush the pointer to the test config file.
2859 | 		 */
2860 | 		fflush(confPtr);
2861 | 
2862 | 	}
2863 | 	/*
2864 | 	 * Here ends the loop that writes the config file, with the new
2865 | 	 * variable, to the temporary file.
2866 | 	 */
2867 | 
2868 | 	/*
2869 | 	 * While !(the record to be updated) BEGIN Write the record to the
2870 | 	 * temporary file Read the next record in the config file END
2871 | 	 * 
2872 | 	 * Write the new value to the temporary file Read the next record in the
2873 | 	 * config file COMMENT: this is the record to be updated. COMMENT:
2874 | 	 * discard this record.
2875 | 	 * 
2876 | 	 * Read the next record in the config file
2877 | 	 * 
2878 | 	 * While !(EOF) BEGIN write the record to the temporary file read the
2879 | 	 * next record in the config file END
2880 | 	 * 
2881 | 	 * Close Config file Close Temporary file
2882 | 	 * 
2883 | 	 * Open Temporary file for reading Open Config file for writing
2884 | 	 * 
2885 | 	 * Read the next record of the Temporary file
2886 | 	 * 
2887 | 	 * While (!EOF of Temporary file) BEGIN write the record into the Config
2888 | 	 * file read the next record of the Temporary file END
2889 | 	 * 
2890 | 	 * Close Temporary file Close Config file
2891 | 	 * 
2892 | 	 */
2893 | 
2894 | 	fclose(confPtr);
2895 | 	fclose(tempPtr);
2896 | 
2897 | 	/*
2898 | 	 * Now, flush the file pointers
2899 | 	 */
2900 | 	fflush(confPtr);
2901 | 	fflush(tempPtr);
2902 | 
2903 | 	/*
2904 | 	 * Open the temporary file for reading. Open the config file for
2905 | 	 * writing. Write the contents of the temporary file into the config
2906 | 	 * file.
2907 | 	 */
2908 | 
2909 | 	/*
2910 | 	 * Open the temporary file for reading .....
2911 | 	 */
2912 | 	if ((tempPtr = fopen(tempFile, "r")) == NULL) {
2913 | 		printf("File \"%s\" could not be opened for reading.\n", tempFile);
2914 | 		die;
2915 | 	}
2916 | 
2917 | 	/*
2918 | 	 * Open the config file for writing .....
2919 | 	 */
2920 | 	if ((confPtr = fopen(testFile, "w")) == NULL) {
2921 | 		printf("File \"%s\" could not be opened for writing.\n", testFile);
2922 | 		die;
2923 | 	}
2924 | 
2925 | 	/*
2926 | 	 * Read the first record in the temporary file.
2927 | 	 */
2928 | 
2929 | 	fscanf(tempPtr, "%s", name);
2930 | 	fgets(value, sizeof(value), tempPtr);
2931 | #ifdef DEBUG
2932 | 	printf("\nFIRST LINE: %s %s", name, value);
2933 | #endif	/* DEBUG */
2934 | 
2935 | 	/*
2936 | 	 * While there are records to be read in the temporary file: Write
2937 | 	 * the current record into the test config file. Read the next record
2938 | 	 * in the temporary file. Repeat untill the EOF has been reached.
2939 | 	 */
2940 | 
2941 | 	while (!feof(tempPtr)) {
2942 | 		fprintf(confPtr, "%s %s", name, value);
2943 | 		fscanf(tempPtr, "%s", name);
2944 | 		fgets(value, sizeof(value), tempPtr);
2945 | 	}
2946 | 
2947 | 	fclose(confPtr);
2948 | 	fclose(tempPtr);
2949 | 	unlink(tempFile);
2950 | 
2951 | 	return (0);
2952 | }
2953 | 
2954 | 
2955 | int
2956 | ca_getStorageLocation(char *confVar, dict_t woordenboek[], int size)
2957 | /*************************************************************
2958 |  * ca_getStorageLocation()                        *
2959 |   *  - takes the name of a config variable and searches the    *
2960 |  *    dictionary structure for the storage location for this *
2961 |  *     variable.                                *
2962 |  *                                        *
2963 |  * Parameters                                *
2964 |   *  confVar -- the string variable that contains the name    *
2965 |  *            of the variable.                    *
2966 |  *  woordenboek -- the dictionary structure to be searched  *
2967 |   *  size      -- the size of the dictionary structure to  *
2968 |  *                 searched.                      *
2969 |  *                                        *
2970 |  * Returns                                  *
2971 |   *  the location (integer) in the values array.          *
2972 |  *                                        *
2973 |   *************************************************************/
2974 | {
2975 | 	int i, where, found = 0;	/* Whether or not the symbol has been
2976 | 					 * found. */
2977 | 
2978 | 
2979 | #ifdef DEBUG
2980 | 	printf("The variable name in ca_getStorageLocation is: %s\n", confVar);
2981 | #endif	/* DEBUG */
2982 | 
2983 | 	/*
2984 | 	 * Compares each name in the dictionary with the one for which we are
2985 | 	 * looking.
2986 | 	 */
2987 | 	i = 0;
2988 | 	while (!found && i < size) {
2989 | 		if (strcmp(woordenboek[i].varName, confVar) == 0) {
2990 | 			found = 1;
2991 | 		}
2992 | 		else {
2993 | 			++i;
2994 | 		}
2995 | 	}
2996 | 
2997 | 	/*
2998 | 	 * Returns the storage location for the given variable name or else
2999 | 	 * returns NOT_FOUND
3000 | 	 */
3001 | 	if (found) {
3002 | 		/* mySymbol = atoi(woordenboek[i].varSym);  */
3003 | #ifdef DEBUG
3004 | 		printf("Symbol is %s\n", woordenboek[i].varSym);
3005 | 		printf("Storage Location is: %d\n", woordenboek[i].varNum);
3006 | #endif	/* DEBUG */
3007 | 		where = woordenboek[i].varNum;
3008 | 	}
3009 | 	else {
3010 | 		fprintf(stderr, "Error: cannot find storage location for variable %s\n", confVar);
3011 | 		where = NOT_FOUND;
3012 | 	}
3013 | 	return (where);
3014 | 
3015 | }
3016 | 
3017 | 
3018 | void
3019 | ca_getConfig(values_t confVars[], int size)
3020 | /*************************************************************
3021 |  * ca_getConfig -- prints the strings representing the     *
3022 |  *              values of the configuration variables    *
3023 |  *                                        *
3024 |  * Parameters                                *
3025 |   *    confVars -- the values_t array which stores the     *
3026 |   *            values of the configuration variables.     *
3027 |   *    size -- the number of configuration variables,      *
3028 |   *            the number of elements in the confVars array  *
3029 |  *                                        *
3030 |  *                                        *
3031 |  *************************************************************/
3032 | {
3033 | 	int i = 0;	/* A counting variable. */
3034 | 
3035 | 	puts("A dump of the strings of the values of the Config Vars:");
3036 | 	puts("Number\t\tString");
3037 | 	puts("----------");
3038 | 
3039 | 	while (i < size) {
3040 | 		printf("%d\t\t%s\n", i, (confVars[i].strPtr)->str);
3041 | 		++i;
3042 | 	}
3043 | 
3044 | }
3045 | 
3046 | 
3047 | int
3048 | ca_getType(char *confVar, dict_t woordenboek[], int size)
3049 | /****************************************************************
3050 |   * ca_getType -- returns the data type of the variable.      *
3051 |  *                                          *
3052 |  * Parameters                                  *
3053 |  *    confVar -- the name of the configuration variable.      *
3054 |   *    woordenboek -- the array of dict_t structures.        *
3055 |   *    size -- the number of configuration variables.        *
3056 |  *                                          *
3057 |  * Returns                                    *
3058 |  *    an integer representing the data type of the variable    *
3059 |  *                                          *
3060 |  ****************************************************************/
3061 | {
3062 | 	int i = 0,	/* Counter variable. */
3063 | 	   found = 0;	/* Set this == 1 when we find the variable.  */
3064 | 	int myType;	/* Integer representing the type of the config
3065 | 			 * variable. */
3066 | 
3067 | 	/*
3068 | 	 * Compare each name in the dictionary with the one for which we are
3069 | 	 * looking.
3070 | 	 */
3071 | 
3072 | 	myType = 0;
3073 | 
3074 | #ifdef DEBUG
3075 | 	printf("ca_getType function called for variable: %s\n", confVar);
3076 | #endif	/* DEBUG */
3077 | 
3078 | 	while (!found && i <= size) {
3079 | 		if (strcmp(woordenboek[i].varName, confVar) == 0) {
3080 | 			found = 1;
3081 | #ifdef DEBUG
3082 | 			printf("ca_getType function: %s, %s matched.\n", woordenboek[i].varName, confVar);
3083 | #endif	/* DEBUG */
3084 | 		}
3085 | 		else {
3086 | 			++i;
3087 | 		}
3088 | 	}
3089 | 
3090 | 	/*
3091 | 	 * Return the type of the config variable or else return "NOT FOUND".
3092 | 	 */
3093 | 	if (found) {
3094 | 		if (strcmp(woordenboek[i].varType, "CA_INT") == 0) {
3095 | #ifdef DEBUG
3096 | 			printf("ca_getType function: %s variable of type %s is Integer type\n", woordenboek[i].varName, woordenboek[i].varType);
3097 | 
3098 | 			printf("ca_getType function: %s, %s\n", woordenboek[i].varName, woordenboek[i].varType);
3099 | #endif	/* DEBUG */
3100 | 			myType = 11;
3101 | #ifdef DEBUG
3102 | 			printf("For type CA_INT, myType is %d\n", myType);
3103 | 			printf("ca_getType function: %s, %s, %d\n", woordenboek[i].varName, woordenboek[i].varType, myType);
3104 | #endif	/* DEBUG */
3105 | 		}
3106 | 		else {
3107 | 			if (strcmp(woordenboek[i].varType, "CA_STRING") == 0) {
3108 | #ifdef DEBUG
3109 | 				printf("ca_getType function: %s variable of type %s is String type\n", woordenboek[i].varName, woordenboek[i].varType);
3110 | 				printf("ca_getType function: %s, %s\n", woordenboek[i].varName, woordenboek[i].varType);
3111 | #endif	/* DEBUG */
3112 | 				myType = 12;
3113 | #ifdef DEBUG
3114 | 				printf("ca_getType function: %s, %s, %d\n", woordenboek[i].varName, woordenboek[i].varType, myType);
3115 | #endif	/* DEBUG */
3116 | 			}
3117 | 			else {
3118 | 				if (strcmp(woordenboek[i].varType, "CA_DIRLIST") == 0) {
3119 | #ifdef DEBUG
3120 | 					printf("ca_getType function: %s, %s\n", woordenboek[i].varName, woordenboek[i].varType);
3121 | #endif	/* DEBUG */
3122 | 					myType = 13;
3123 | #ifdef DEBUG
3124 | 					printf("ca_getType function: %s, %s, %d\n", woordenboek[i].varName, woordenboek[i].varType, myType);
3125 | #endif	/* DEBUG */
3126 | 				}
3127 | 				else {
3128 | 					if (strcmp(woordenboek[i].varType, "CA_BOOLEAN") == 0) {
3129 | #ifdef DEBUG
3130 | 						printf("ca_getType function: %s, %s\n", woordenboek[i].varName, woordenboek[i].varType);
3131 | #endif	/* DEBUG */
3132 | 						myType = 14;
3133 | #ifdef DEBUG
3134 | 						printf("ca_getType function: %s, %s, %d\n", woordenboek[i].varName, woordenboek[i].varType, myType);
3135 | #endif	/* DEBUG */
3136 | 					}
3137 | 					else {
3138 | 						if (strcmp(woordenboek[i].varType, "CA_SOURCETYPE") == 0) {
3139 | #ifdef DEBUG
3140 | 							printf("ca_getType function: %s, %s\n", woordenboek[i].varName, woordenboek[i].varType);
3141 | #endif	/* DEBUG */
3142 | 							myType = 15;
3143 | #ifdef DEBUG
3144 | 							printf("ca_getType function: %s, %s, %d\n", woordenboek[i].varName, woordenboek[i].varType, myType);
3145 | #endif	/* DEBUG */
3146 | 						}
3147 | 						else {
3148 | 							if (strcmp(woordenboek[i].varType, "CA_ADMIN") == 0) {
3149 | #ifdef DEBUG
3150 | 								printf("ca_getType function: %s, %s\n", woordenboek[i].varName, woordenboek[i].varType);
3151 | #endif	/* DEBUG */
3152 | 								myType = 16;
3153 | #ifdef DEBUG
3154 | 								printf("ca_getType function: %s, %s, %d\n", woordenboek[i].varName, woordenboek[i].varType, myType);
3155 | #endif	/* DEBUG */
3156 | 
3157 | 							}
3158 | 							else {
3159 | 								if (strcmp(woordenboek[i].varType, "CA_UPDSOURCE") == 0) {
3160 | #ifdef  DEBUG
3161 | 									printf("ca_getType function: %s, %s\n", woordenboek[i].varName, woordenboek[i].varType);
3162 | #endif	/* DEBUG */
3163 | 									myType = 17;
3164 | #ifdef DEBUG
3165 | 									printf("ca_getType function: %s, %s, %d\n", woordenboek[i].varName, woordenboek[i].varType, myType);
3166 | #endif	/* DEBUG */
3167 | 								}
3168 | 							}
3169 | 						}
3170 | 					}
3171 | 				}
3172 | 			}
3173 | 		}
3174 | 	}
3175 | 	else {
3176 | 		myType = NOT_FOUND;
3177 | 	}
3178 | 	return (myType);
3179 | }
3180 | 
3181 | 
3182 | ca_updDbSource_t *
3183 | ca_get_UpdSourceHandle(int symbol)
3184 | /*******************************************************************
3185 |  *ca_get_UpdSourceHandle                              *
3186 |  * -- returns the handle to the Update source                *
3187 |   *                                            *
3188 |   * Parameters                                    *
3189 |   *  -- none; there is only one Update Source in the Configuration  *
3190 |   *     file because a single DBupdate process cannot update more   *
3191 |  *     than one source.                              *
3192 |  *                                            *
3193 |  * Returns                                      *
3194 |   *  -- a pointer to the Update Source structure (type           *
3195 |  *     ca_updDbSource_t) or NULL.                        *
3196 |  *                                            *
3197 |  *******************************************************************/
3198 | {
3199 | 	ca_updDbSource_t *myUpdSourcePtr;
3200 | 
3201 | 	/*
3202 | 	 * Make sure that we are calling the correct function.
3203 | 	 */
3204 | 	if (strcmp(dictionary[symbol].varType, "CA_UPDSOURCE") != 0) {
3205 | 		fprintf(stderr, "Error: unexpected variable type.\n");
3206 | 		die;
3207 | 	}
3208 | 	else {
3209 | 		myUpdSourcePtr = (ca_updDbSource_t *) confVars[symbol].valPtr;
3210 | 	}
3211 | 	return (myUpdSourcePtr);
3212 | }
3213 | 
3214 | 
3215 | char *
3216 | ca_UpdSrcHandle2StrElement(ca_updDbSource_t * uh, int srcAttrib)
3217 | /*******************************************************************
3218 |  * ca_UpdSrcHandle2StrElement                          *
3219 |  *   -- returns a string which represents the attribute of an     *
3220 |  *     update source e.g. the name, the user, etc.            *
3221 |  *    It allocates the required memory, but it returns NULL if    *
3222 |  *    the required memory cannot be allocated.              *
3223 |  *                                            *
3224 |  *                                            *
3225 |  * Parameters                                    *
3226 |  *  -- the Update Source Handle, i.e. a pointer to the structure  *
3227 |  *    which contains the data about the Update Source.        *
3228 |   *                                            *
3229 |  *  -- srcAttrib - an integer which represents the required      *
3230 |  *    attribute of the source.  This is also used in the       *
3231 |  *    ca_srchandle2Strelement() function.                  *
3232 |  *                                            *
3233 |   * Returns                                      *
3234 |   *  -- a string or NULL                              *
3235 |  *                                            *
3236 |  *******************************************************************/
3237 | {
3238 | 	char *myStr;
3239 | 
3240 | 	if (uh == NULL) {
3241 | 		fprintf(stderr, "ca_UpdSrcHandle2StrElement(): Cannot dereference NULL pointer.\n");
3242 | 		die;
3243 | 	}
3244 | 
3245 | 	switch (srcAttrib) {
3246 | 	case 0:
3247 | 		/* Update Source Name */
3248 | 		myStr = strdup(uh->name);
3249 | 		break;
3250 | 
3251 | 	case 3:
3252 | 		/* Machine */
3253 | 		myStr = strdup((uh->updDb).host);
3254 | 		break;
3255 | 
3256 | 	case 5:
3257 | 		/* User */
3258 | 		myStr = strdup((uh->updDb).user);
3259 | 		break;
3260 | 
3261 | 	case 6:
3262 | 		/* Password */
3263 | 		myStr = strdup((uh->updDb).password);
3264 | 		break;
3265 | 
3266 | 	case 7:
3267 | 		/* Update DB Name */
3268 | 		myStr = strdup((uh->updDb).dbName);
3269 | 		break;
3270 | 
3271 | 	case 15:
3272 | 		/* Update Source Whois Machine */
3273 | 		myStr = strdup((uh->whoisd_host));
3274 | 		break;
3275 | 
3276 | 	default:
3277 | 		puts("Cannot find this Update source attribute");
3278 | 		break;
3279 | 	}
3280 | 
3281 | 	return (myStr);
3282 | }
3283 | 
3284 | 
3285 | int
3286 | ca_UpdSrcHandle2IntElement(ca_updDbSource_t * uh, int srcAttrib)
3287 | /*******************************************************************
3288 |  * ca_UpdSrcHandle2IntElement                          *
3289 |  *   -- a function that returns the integer value of the requested  *
3290 |   *    attribute of the given source.                    *
3291 |   *                                            *
3292 |   * Parameters                                    *
3293 |   *  -- the Update Source Handle, i.e. a pointer to the structure  *
3294 |   *    which contains the data about the Update Source.            *
3295 |  *
3296 |  *  -- srcAttrib - an integer which represents the required      *
3297 |  *    attribute of the source.  This is also used in the       *
3298 |  *    ca_srchandle2Strelement() function.                  *
3299 |  *                                            *
3300 |  * Returns                                      *
3301 |  *  -- an integer.
3302 |  *******************************************************************/
3303 | {
3304 | 
3305 | 	int myInt;	/* The value of this integer is returned. */
3306 | 
3307 | 	if (uh == NULL) {
3308 | 		fprintf(stderr, "ca_srchandle2Intelement(): Cannot dereference NULL pointer\n");
3309 | 		die;
3310 | 	}
3311 | 
3312 | 	switch (srcAttrib) {
3313 | 
3314 | 	case 4:
3315 | 		/* Update Source DB Port */
3316 | 		myInt = (uh->updDb).port;
3317 | 		break;
3318 | 
3319 | 	case 16:
3320 | 		/* Update Source QRY Port */
3321 | 		myInt = (uh->qryPort);
3322 | 		break;
3323 | 
3324 | 	case 17:
3325 | 		/* Update Source UPD Port */
3326 | 		myInt = (uh->updPort);
3327 | 		break;
3328 | 
3329 | 	default:
3330 | 		fprintf(stderr, "Could not find source-attribute %d\n", srcAttrib);
3331 | 		die;
3332 | 		break;
3333 | 	}
3334 | 
3335 | 	return (myInt);
3336 | 
3337 | }
3338 | 
3339 | /*
3340 |  * void ca_init(dict_t theDict[], const char *configFile, values_t
3341 |  * configVars[], int varNo)
3342 |  */
3343 | /*
3344 |  * ca_init() -- Initialisation function.
3345 |  */
3346 | /*
3347 |  * { char sourcesFile[80];
3348 |  * 
3349 |  * ca_populateDictionary(theDict, varNo); ca_readConfig(configFile, configVars,
3350 |  * varNo);
3351 |  * 
3352 |  * sourcesFile = ca_get_dirlist(CA_SOURCEFILE); ca_readSources(sourcesFile,
3353 |  * confVars); }
3354 |  */
3355 | 
3356 | int ca_sanityChk(values_t confVars[])
3357 | /*
3358 | 	- does a simple sanity check
3359 |  - Parameters
3360 | 		- confVars - the array of configuration variables
3361 |  - Returns 
3362 | 		- an integer: -1 or 0
3363 |  */
3364 | {
3365 | int symbol;	/* A counting variable */
3366 | int status = 0;	/* Assume that the Configuration File is complete. */
3367 | int undefVars = 0; /* Number of undefined variables. */
3368 | 
3369 | /*
3370 | 	* Instead of using VARS here, we use CA_NUMBEROFSYMBOLS.
3371 |  *
3372 |  */
3373 | for(symbol = 0; symbol < CA_NUMBEROFSYMBOLS; symbol++)
3374 | 	{
3375 | 	if (!confVars[symbol].strPtr)
3376 | 		{
3377 | 		++undefVars;
3378 | 		fprintf(stderr, "%s %s\n", configWarningStr, dictionary[symbol].varName);
3379 | 		}
3380 | 	}
3381 | 
3382 | if (undefVars)
3383 | 	{
3384 | 	status = INCOMPLETE;
3385 | 	}
3386 | 
3387 | 	fprintf(stderr, "%s\n", configError_1Str);
3388 |  fprintf(stderr, "%d%s\n", undefVars, configError_2Str);
3389 |  return(status);
3390 | }
3391 | 
3392 | int ca_mandVarChk(void)
3393 | /****************************************************************
3394 |  * ca_mandVarChk																*
3395 | 	*	- Looks for undefined mandatory variables							*
3396 | 	* Parameters																	*
3397 |  *	- confVars, the array of Configuration Variables				*
3398 | 	* 	- dictionary, the dictionary of Configuration Variables		*
3399 | 	*																					*
3400 |  * Returns																		*
3401 | 	* an integer, -1 or 0.														*
3402 | 	*																					*
3403 |  ****************************************************************/
3404 | {
3405 | int symbol;	/* A counting variable */
3406 | int status = 0;	/* Assume that the Configuration File is complete. */
3407 | int undefVars = 0; /* Number of undefined variables. */
3408 | 
3409 | puts("Running mandatory variables check .....");
3410 | 
3411 | for(symbol = 0; symbol < CA_NUMBEROFSYMBOLS; symbol++)
3412 | 	{
3413 | 	if ( dictionary[symbol].varMandatory && (!confVars[symbol].strPtr) )
3414 | 		{
3415 | 		++undefVars;
3416 | 		fprintf(stderr, "%s %s\n", configWarningStr, dictionary[symbol].varName);
3417 | 		}
3418 | 	}
3419 | 
3420 | if (undefVars)
3421 | 	{
3422 | 	status = INCOMPLETE;
3423 | 
3424 | 	fprintf(stderr, "%s\n", configError_1Str);
3425 |  fprintf(stderr, "%d%s\n", undefVars, configError_2Str);
3426 | 	}
3427 | 
3428 | 
3429 |  return(status);
3430 | 
3431 | }