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authorJustus Winter <4winter@informatik.uni-hamburg.de>2014-02-01 02:02:02 +0100
committerJustus Winter <4winter@informatik.uni-hamburg.de>2014-02-01 16:37:23 +0100
commitfe7cd805567e1f4d1ed92d87b216e2dc78249892 (patch)
tree2002737a7c5ad509447ae8acdb85b9327f86d4a1 /kern
parent62ca925c9a6b0d12bdf17ac4ab93f5434575cedc (diff)
kern: add snprintf
* kern/printf.c (snprintf): New function. * kern/printf.h (snprintf): New declaration.
Diffstat (limited to 'kern')
-rw-r--r--kern/printf.c10
-rw-r--r--kern/printf.h1
2 files changed, 11 insertions, 0 deletions
diff --git a/kern/printf.c b/kern/printf.c
index af59d5a..ea78d48 100644
--- a/kern/printf.c
+++ b/kern/printf.c
@@ -615,6 +615,16 @@ vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
return cookie.index;
}
+int
+snprintf(char *buf, size_t size, const char *fmt, ...)
+{
+ int written;
+ va_list listp;
+ va_start(listp, fmt);
+ written = vsnprintf(buf, size, fmt, listp);
+ va_end(listp);
+ return written;
+}
void safe_gets(str, maxlen)
char *str;
diff --git a/kern/printf.h b/kern/printf.h
index 8b4e760..0f8b328 100644
--- a/kern/printf.h
+++ b/kern/printf.h
@@ -40,6 +40,7 @@ extern void printnum (unsigned long u, int base,
vm_offset_t putc_arg);
extern int sprintf (char *buf, const char *fmt, ...);
+extern int snprintf (char *buf, size_t size, const char *fmt, ...);
extern int vsnprintf (char *buf, size_t size, const char *fmt, va_list args);
extern int printf (const char *fmt, ...);