[PATCH] add function attributes to sprintf() and snprintf()

[Erik Mouw]

Hi,

This patch adds function attributes to sprintf() and snprintf() so the
compiler can catch formatting errors at compile time. Patch is against
2.4.13-ac8, but it should apply cleanly against 2.4.14 as well.

Erik

-- 
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Faculty
of Information Technology and Systems, Delft University of Technology,
PO BOX 5031, 2600 GA Delft, The Netherlands  Phone: [phone]
Fax: [phone]  Email: [e-mail]
WWW: http://www-ict.its.tudelft.nl/~erik/

Index: include/linux/kernel.h
===================================================================
RCS file: /home/erik/cvsroot/elinux/include/linux/kernel.h,v
retrieving revision 1.1.1.143
diff -u -r1.1.1.143 kernel.h
--- linux/include/linux/kernel.h	2001/11/07 00:36:34	1.1.1.143
+++ linux/include/linux/kernel.h	2001/11/07 15:49:54
@@ -60,9 +60,11 @@
 extern long simple_strtol(const char *,char **,unsigned int);
 extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
 extern long long simple_strtoll(const char *,char **,unsigned int);
-extern int sprintf(char * buf, const char * fmt, ...);
+extern int sprintf(char * buf, const char * fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
 extern int vsprintf(char *buf, const char *, va_list);
-extern int snprintf(char * buf, size_t size, const char *fmt, ...);
+extern int snprintf(char * buf, size_t size, const char * fmt, ...)
+	__attribute__ ((format (printf, 3, 4)));
 extern int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
 
 extern int sscanf(const char *, const char *, ...)