From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 8 Aug 2025 07:24:46 +0000 (+0200)
Subject: tool_writeout: check gmtime return code too
X-Git-Tag: curl-8_16_0~213
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=065a6531583d58b4f2fdf81e83863ccf3158ff7f;p=thirdparty%2Fcurl.git

tool_writeout: check gmtime return code too

If the unlikely event happen that it fails, it returns NULL.
CodeSonar is not happy unless we check for it.

Closes #18225
---

diff --git a/src/tool_writeout.c b/src/tool_writeout.c
index 2469712745..0a610de79a 100644
--- a/src/tool_writeout.c
+++ b/src/tool_writeout.c
@@ -603,7 +603,7 @@ static const char *outtime(const char *ptr, /* %time{ ... */
     if(!result) {
       /* !checksrc! disable BANNEDFUNC 1 */
       utc = gmtime(&secs);
-      if(curlx_dyn_len(&format) &&
+      if(curlx_dyn_len(&format) && utc &&
          strftime(output, sizeof(output), curlx_dyn_ptr(&format), utc))
         fputs(output, stream);
       curlx_dyn_free(&format);