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add snprintf function 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2010-03-29 10:55:17 +02:00
parent 6d079ae2ca
commit 362d6375aa
2 changed files with 13 additions and 0 deletions
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1
include/stdio.h
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@ -31,6 +31,7 @@ static inline void putchar(char c) {
int printf(const char *fmt, ...);
int vprintf(const char *fmt, va_list args);
int sprintf(char * buf, const char *fmt, ...);
int snprintf(char *buf, size_t size, const char *fmt, ...);
int vsprintf(char *buf, const char *fmt, va_list args);
char *asprintf(const char *fmt, ...);
char *vasprintf(const char *fmt, va_list ap);

12
lib/vsprintf.c
View File

@ -547,6 +547,18 @@ int sprintf(char * buf, const char *fmt, ...)
}
EXPORT_SYMBOL(sprintf);
int snprintf(char * buf, size_t size, const char *fmt, ...)
{
va_list args;
int i;
va_start(args, fmt);
i = vsnprintf(buf, size, fmt, args);
va_end(args);
return i;
}
EXPORT_SYMBOL(sprintf);
/* Simplified asprintf. */
char *vasprintf(const char *fmt, va_list ap)
{