Author: lidl Date: Wed Nov 25 20:01:11 2015 New Revision: 291328 URL: https://svnweb.freebsd.org/changeset/base/291328
Log: Have syslogd honor 'mesg' status when logging to users. PR: bin/196742 Submitted by: jef at mail acme com Approved by: rpaulo (mentor) Differential Revision: https://reviews.freebsd.org/D4270 Modified: head/usr.sbin/syslogd/syslogd.c Modified: head/usr.sbin/syslogd/syslogd.c ============================================================================== --- head/usr.sbin/syslogd/syslogd.c Wed Nov 25 19:49:55 2015 (r291327) +++ head/usr.sbin/syslogd/syslogd.c Wed Nov 25 20:01:11 2015 (r291328) @@ -341,6 +341,7 @@ static void printsys(char *); static int p_open(const char *, pid_t *); static void readklog(void); static void reapchild(int); +static const char *ttymsg_check(struct iovec *, int, char *, int); static void usage(void); static int validate(struct sockaddr *, const char *); static void unmapped(struct sockaddr *); @@ -1425,7 +1426,7 @@ wallmsg(struct filed *f, struct iovec *i if (!f->f_un.f_uname[i][0]) break; if (!strcmp(f->f_un.f_uname[i], ut->ut_user)) { - if ((p = ttymsg(iov, iovlen, ut->ut_line, + if ((p = ttymsg_check(iov, iovlen, ut->ut_line, TTYMSGTIME)) != NULL) { errno = 0; /* already in msg */ logerror(p); @@ -1438,6 +1439,29 @@ wallmsg(struct filed *f, struct iovec *i reenter = 0; } +/* + * Wrapper routine for ttymsg() that checks the terminal for messages enabled. + */ +static const char * +ttymsg_check(struct iovec *iov, int iovcnt, char *line, int tmout) +{ + static char device[1024]; + static char errbuf[1024]; + struct stat sb; + + (void) snprintf(device, sizeof(device), "%s%s", _PATH_DEV, line); + + if (stat(device, &sb) < 0) { + (void) snprintf(errbuf, sizeof(errbuf), + "%s: %s", device, strerror(errno)); + return (errbuf); + } + if ((sb.st_mode & S_IWGRP) == 0) + /* Messages disabled. */ + return (NULL); + return ttymsg(iov, iovcnt, line, tmout); +} + static void reapchild(int signo __unused) { _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
