Github user danobi commented on a diff in the pull request:
https://github.com/apache/trafficserver/pull/274#discussion_r36772358
--- Diff: cmd/traffic_cop/traffic_cop.cc ---
@@ -767,6 +767,26 @@ spawn_manager()
exit(1);
}
+ // Move any traffic.out that we can not write to, out
+ // of the way (TSqa2232)
+ // coverity[fs_check_call]
+ if (access(log_file, W_OK) < 0 && errno == EACCES) {
+ char old_log_file[PATH_NAME_MAX];
+ snprintf(old_log_file, sizeof(old_log_file), "%s.old", log_file);
+ // coverity[toctou]
+ rename(log_file, old_log_file);
--- End diff --
It looks like whether or not rename() fails or overwrites is implementation
specific. However, BaseLogFile::open_file() also checks to see if the file can
be opened, so at the very least the new code's behavior remains consistent with
the current code. Therefore, I think that the potential renaming problem is
outside the scope of this issue/patch.
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