Enable gcc warnings for vsprintf/vsnprintf with "format" attribute
Marcelo Tosatti
AppliedPATCH 1/1 Enable gcc warnings for vsprintf/vsnprintf with "format" attribute
Applied to v2.4 - v2.6 wants the same change.
Against v2.6-BK.
From: Solar Designer <[email protected]>
Enables gcc warnings for the case when arguments to vsprintf/vsnprintf function don't match the format string. This helps catch programming errors.
include/linux/kernel.h renamed from include/linux/kernel.h.orig +4 -2
@@ -91,10 +91,12 @@extern long long simple_strtoll (const char *,char **,unsigned int );extern int sprintf (char * buf,const char * fmt, ...) __attribute__ ((format (printf,2 ,3 ))); -extern int vsprintf (char *buf,const char *,va_list ); +extern int vsprintf (char *buf,const char *,va_list ) + __attribute__ ((format (printf,2 ,0 )));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 vsnprintf (char *buf,size_t size,const char *fmt,va_list args) + __attribute__ ((format (printf,3 ,0 )));extern int scnprintf (char * buf,size_t size,const char * fmt, ...) __attribute__ ((format (printf,3 ,4 )));extern int vscnprintf (char *buf,size_t size,const char *fmt,va_list args);