X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=snprintf%2Fsnprintf.c;h=68b45776346159b8ce9f9e7e9a8f0f9fba3728ee;hb=75026e9f596aa057bd3499a7be43a7fc8aa0b783;hp=bbc66a0743982a6bde5a925a689dbbaa4a7a441e;hpb=a2adb105d815cfbcf9bf8f870f2f72f79a319138;p=lttng-ust.git

diff --git a/snprintf/snprintf.c b/snprintf/snprintf.c
index bbc66a07..68b45776 100644
--- a/snprintf/snprintf.c
+++ b/snprintf/snprintf.c
@@ -32,16 +32,19 @@
  */
 
 #include <limits.h>
+#include <stddef.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdarg.h>
 #include "local.h"
 #include "ust_snprintf.h"
 
+#define DUMMY_LEN	1
+
 int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap)
 {
 	int ret;
-	char dummy;
+	char dummy[DUMMY_LEN];
 	LTTNG_UST_LFILE f;
 	struct __lttng_ust_sfileext fext;
 
@@ -50,8 +53,8 @@ int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap)
 		n = INT_MAX;
 	/* Stdio internals do not deal correctly with zero length buffer */
 	if (n == 0) {
-		str = &dummy;
-		n = 1;
+		str = dummy;
+		n = DUMMY_LEN;
 	}
 	_FILEEXT_SETUP(&f, &fext);
 	f._file = -1;