log: Fix an oob array read.

2011-05-05 22:33:31 -07:00 · 2011-05-05 22:33:31 -07:00 · 847aaec682
commit 847aaec682
parent c38d9780eb
1 changed files with 1 additions and 1 deletions
--- a/libavutil/log.c
+++ b/libavutil/log.c
@ -104,7 +104,7 @@ void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)

    vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);

-    print_prefix= line[strlen(line)-1] == '\n';
+    print_prefix = strlen(line) && line[strlen(line)-1] == '\n';

 #if HAVE_ISATTY
    if(!is_atty) is_atty= isatty(2) ? 1 : -1;