patch-src_log_c.patch

$OpenBSD: patch-src_log_c,v 1.8 2019/03/18 11:20:04 akt Exp $

HAproxy:

Patch the log function to avoid vfprintf receiving a NULL value.

Index: src/log.c
--- src/log.c.orig
+++ src/log.c
@@ -984,11 +984,12 @@
                        sep = host.len ? 1 : 0;
                }
 
+               const char* month = monthname[tm.tm_mon];
                hdr_len = snprintf(logheader, global.max_syslog_len,
                                   "<<<<>%s %2d %02d:%02d:%02d %.*s%*s",
-                                  monthname[tm.tm_mon],
+                                  month == NULL ? "(null)" : month,
                                   tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
-                                  host.len, host.str, sep, "");
+                                  host.len, host.str == NULL ? "(null)" : host.str, sep, "");
                /* WARNING: depending upon implementations, snprintf may return
                 * either -1 or the number of bytes that would be needed to store
                 * the total message. In both cases, we must adjust it.