patch-2.3.21 linux/include/asm-alpha/uaccess.h

• Lines: 16
• Date: Mon Oct 11 14:40:01 1999
• Orig file: v2.3.20/linux/include/asm-alpha/uaccess.h
• Orig date: Thu Jul 29 13:37:22 1999

diff -u --recursive --new-file v2.3.20/linux/include/asm-alpha/uaccess.h linux/include/asm-alpha/uaccess.h
@@ -487,6 +487,15 @@
 	return access_ok(VERIFY_READ,str,0) ? __strlen_user(str) : 0;
 }
 
+/* Returns: 0 if exception before NUL or reaching the supplied limit (N),
+ * a value greater than N if the limit would be exceeded, else strlen.  */
+extern long __strnlen_user(const char *, long);
+
+extern inline long strnlen_user(const char *str, long n)
+{
+	return access_ok(VERIFY_READ,str,0) ? __strnlen_user(str, n) : 0;
+}
+
 /*
  * About the exception table:
  *