Audit slstatus.c

[slstatus.git] / util.c

diff --git a/util.c b/util.c
index 6008ffc..6113049 100644 (file)
--- a/util.c
+++ b/util.c
@@ -10,15 +10,16 @@ const char *
 bprintf(const char *fmt, ...)
 {
        va_list ap;
 bprintf(const char *fmt, ...)
 {
        va_list ap;

-       size_t len;
+       int ret;

 
        va_start(ap, fmt);
 
        va_start(ap, fmt);

-       len = vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
+       if ((ret = vsnprintf(buf, sizeof(buf), fmt, ap)) < 0) {
+               fprintf(stderr, "vsnprintf: %s\n", strerror(errno));
+       } else if ((size_t)ret >= sizeof(buf)) {
+               fprintf(stderr, "vsnprintf: Output truncated\n");
+       }

        va_end(ap);
 
        va_end(ap);
 

-       if (len >= sizeof(buf))
-               buf[sizeof(buf)-1] = '\0';
-

        return buf;
 }
 
        return buf;
 }