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-rw-r--r--lib/lib.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/lib.c b/lib/lib.c
index 8430ae68..4e0ef73f 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -126,22 +126,22 @@ void *xstrdup(char *s)
// Die unless we can allocate enough space to sprintf() into.
char *xmsprintf(char *format, ...)
{
- va_list va;
+ va_list va, va2;
int len;
char *ret;
- // How long is it?
-
va_start(va, format);
+ va_copy(va2, va);
+
+ // How long is it?
len = vsnprintf(0, 0, format, va);
len++;
va_end(va);
// Allocate and do the sprintf()
ret = xmalloc(len);
- va_start(va, format);
- vsnprintf(ret, len, format, va);
- va_end(va);
+ vsnprintf(ret, len, format, va2);
+ va_end(va2);
return ret;
}