Date: Wed, 8 Nov 2017 16:45:53 +0000 (UTC) From: Gleb Smirnoff <glebius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r325558 - head/usr.sbin/syslogd Message-ID: <201711081645.vA8Gjrlu063859@repo.freebsd.org>
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Author: glebius Date: Wed Nov 8 16:45:53 2017 New Revision: 325558 URL: https://svnweb.freebsd.org/changeset/base/325558 Log: When parsing UDP messages skip optional hostname as described by RFC 3164. PR: 200933 Submitted by: maxim Reported by: Konstantin Pavlov <thresh nginx.com> MFC after: 2 weeks Modified: head/usr.sbin/syslogd/syslogd.c Modified: head/usr.sbin/syslogd/syslogd.c ============================================================================== --- head/usr.sbin/syslogd/syslogd.c Wed Nov 8 16:03:58 2017 (r325557) +++ head/usr.sbin/syslogd/syslogd.c Wed Nov 8 16:45:53 2017 (r325558) @@ -1034,7 +1034,7 @@ static void logmsg(int pri, const char *msg, const char *from, int flags) { struct filed *f; - int i, fac, msglen, prilev; + int i, j, fac, msglen, prilev; const char *timestamp; char prog[NAME_MAX+1]; char buf[MAXLINE+1]; @@ -1076,6 +1076,19 @@ logmsg(int pri, const char *msg, const char *from, int return; prilev = LOG_PRI(pri); + + /* skip hostname, see RFC 3164 */ + for (i = 0, j = 0; i < NAME_MAX; i++) { + if (isspace(msg[i])) { + j = i + 1; + } + if (msg[i] == ':') + break; + } + if (j <= msglen) { + msg += j; + msglen -= j; + } /* extract program name */ for (i = 0; i < NAME_MAX; i++) {
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