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Diffstat (limited to 'source4/lib/talloc')
-rw-r--r--source4/lib/talloc/talloc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/source4/lib/talloc/talloc.c b/source4/lib/talloc/talloc.c
index b34369cb16..d480cc2689 100644
--- a/source4/lib/talloc/talloc.c
+++ b/source4/lib/talloc/talloc.c
@@ -1066,6 +1066,7 @@ char *talloc_vasprintf_append(char *s, const char *fmt, va_list ap)
struct talloc_chunk *tc;
int len, s_len;
va_list ap2;
+ char c;
if (s == NULL) {
return talloc_vasprintf(NULL, fmt, ap);
@@ -1076,7 +1077,7 @@ char *talloc_vasprintf_append(char *s, const char *fmt, va_list ap)
va_copy(ap2, ap);
s_len = tc->size - 1;
- if ((len = vsnprintf(NULL, 0, fmt, ap2)) <= 0) {
+ if ((len = vsnprintf(&c, 1, fmt, ap2)) <= 0) {
/* Either the vsnprintf failed or the format resulted in
* no characters being formatted. In the former case, we
* ought to return NULL, in the latter we ought to return