patch-2.1.76 linux/drivers/sound/hex2hex.c

• Lines: 88
• Date: Tue Dec 23 13:52:02 1997
• Orig file: v2.1.75/linux/drivers/sound/hex2hex.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.75/linux/drivers/sound/hex2hex.c linux/drivers/sound/hex2hex.c
@@ -0,0 +1,87 @@
+/*
+ * hex2hex reads stdin in Intel HEX format and produces an
+ * (unsigned char) array which contains the bytes and writes it
+ * to stdout using C syntax
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define ABANDON(why) { fprintf(stderr, "%s\n", why); exit(1); }
+#define MAX_SIZE (256*1024)
+unsigned char buf[MAX_SIZE];
+
+int loadhex(FILE *inf, unsigned char *buf)
+{
+	int l=0, c, i;
+
+	while ((c=getc(inf))!=EOF)
+	{
+		if (c == ':')	/* Sync with beginning of line */
+		{
+			int n, check;
+			unsigned char sum;
+			int addr;
+			int linetype;
+
+			if (fscanf(inf, "%02x", &n) != 1)
+			   ABANDON("File format error");
+			sum = n;
+
+			if (fscanf(inf, "%04x", &addr) != 1)
+			   ABANDON("File format error");
+			sum += addr/256;
+			sum += addr%256;
+
+			if (fscanf(inf, "%02x", &linetype) != 1)
+			   ABANDON("File format error");
+			sum += linetype;
+
+			if (linetype != 0)
+			   continue;
+
+			for (i=0;i<n;i++)
+			{
+				if (fscanf(inf, "%02x", &c) != 1)
+			   	   ABANDON("File format error");
+				if (addr >= MAX_SIZE)
+				   ABANDON("File too large");
+				buf[addr++] = c;
+				if (addr > l)
+				   l = addr;
+				sum += c;
+			}
+
+			if (fscanf(inf, "%02x", &check) != 1)
+			   ABANDON("File format error");
+
+			sum = ~sum + 1;
+			if (check != sum)
+			   ABANDON("Line checksum error");
+		}
+	}
+
+	return l;
+}
+
+int main( int argc, const char * argv [] )
+{
+	const char * varline = argv[1];
+	int i,l;
+
+	l = loadhex(stdin, buf);
+
+	printf("/*\n *\t Computer generated file. Do not edit.\n */\n");
+        printf("static int %s_len = %d;\n", varline, l);
+	printf("static unsigned char %s[] = {\n", varline);
+
+	for (i=0;i<l;i++)
+	{
+		if (i) printf(",");
+		if (i && !(i % 16)) printf("\n");
+		printf("0x%02x", buf[i]);
+	}
+
+	printf("\n};\n\n");
+	return 0;
+}