diff options
| -rw-r--r-- | lib/darr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/darr.c b/lib/darr.c index 4f3bd9fb67..7a01274104 100644 --- a/lib/darr.c +++ b/lib/darr.c @@ -70,11 +70,11 @@ char *__darr_in_vsprintf(char **sp, bool concat, const char *fmt, va_list ap) *darr_append(*sp) = 0; again: va_copy(ap_copy, ap); - len = vsnprintf(darr_last(*sp), darr_avail(*sp), fmt, ap_copy); + len = vsnprintf(darr_last(*sp), darr_avail(*sp) + 1, fmt, ap_copy); va_end(ap_copy); if (len < 0) darr_in_strcat(*sp, fmt); - else if ((size_t)len < darr_avail(*sp)) + else if ((size_t)len <= darr_avail(*sp)) _darr_len(*sp) += len; else { darr_ensure_cap(*sp, darr_len(*sp) + (size_t)len); |