(vsnprintf): don't write the NUL into the string if the length was 0

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@15031 ec53bebd-3082-4978-b11e-865c3cabbd6b
2005-04-30 15:07:05 +00:00
parent f651d08834
commit b4e448428a
1 changed files with 1 additions and 1 deletions
--- a/lib/roken/snprintf.c
+++ b/lib/roken/snprintf.c
@@ -688,7 +688,7 @@ vsnprintf (char *str, size_t sz, const char *format, va_list args)
    state.append_char = sn_append_char;

    ret = xyzprintf (&state, format, args);
-    if (state.s != NULL)
+    if (state.s != NULL && sz != 0)
 	*state.s = '\0';
    return ret;
 }