Author: markj
Date: Mon Nov  9 13:54:29 2020
New Revision: 367523
URL: https://svnweb.freebsd.org/changeset/base/367523

Log:
  MFC r366576:
  syslogd: Avoid trimming host names in RFC 5424 mode
  
  PR:   250014

Modified:
  stable/12/usr.sbin/syslogd/syslogd.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/usr.sbin/syslogd/syslogd.c
==============================================================================
--- stable/12/usr.sbin/syslogd/syslogd.c        Mon Nov  9 13:20:44 2020        
(r367522)
+++ stable/12/usr.sbin/syslogd/syslogd.c        Mon Nov  9 13:54:29 2020        
(r367523)
@@ -2226,7 +2226,9 @@ cvthname(struct sockaddr *f)
        hl = strlen(hname);
        if (hl > 0 && hname[hl-1] == '.')
                hname[--hl] = '\0';
-       trimdomain(hname, hl);
+       /* RFC 5424 prefers logging FQDNs. */
+       if (RFC3164OutputFormat)
+               trimdomain(hname, hl);
        return (hname);
 }
 
@@ -2853,7 +2855,9 @@ cfline(const char *line, const char *prog, const char 
                hl = strlen(f->f_host);
                if (hl > 0 && f->f_host[hl-1] == '.')
                        f->f_host[--hl] = '\0';
-               trimdomain(f->f_host, hl);
+               /* RFC 5424 prefers logging FQDNs. */
+               if (RFC3164OutputFormat)
+                       trimdomain(f->f_host, hl);
        }
 
        /* save program name if any */
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