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logger: add support for -H NAME to override system hostname

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Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg 2022-07-31 11:48:58 +02:00
parent c7f65e11c9
commit f32ca837c1
2 changed files with 12 additions and 1 deletions
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6
man/logger.1
View File

@ -37,6 +37,7 @@
.Op Fl d Ar SD .Op Fl d Ar SD
.Op Fl f Ar FILE .Op Fl f Ar FILE
.Op Fl h Ar HOST .Op Fl h Ar HOST
.Op Fl H Ar HOSTNAME
.Op Fl m Ar MSGID .Op Fl m Ar MSGID
.Op Fl p Ar PRIO .Op Fl p Ar PRIO
.Op Fl P Ar PORT .Op Fl P Ar PORT
@ -95,6 +96,11 @@ accepts
.Fl f- .Fl f-
as an alias for as an alias for
.Ar stdout . .Ar stdout .
.It Fl H Ar hostname
Set the hostname in the header of the message to specified value.
If not specified, host part of
.Xr gethostname 3
will be used.
.It Fl h Ar host .It Fl h Ar host
Send the message to the remote system Send the message to the remote system
.Ar host .Ar host

7
src/logger.c
View File

@ -236,6 +236,7 @@ static int usage(int code)
" -d SD Log SD as RFC5424 style 'structured data' in message\n" " -d SD Log SD as RFC5424 style 'structured data' in message\n"
" -f FILE Log file to write messages to, instead of syslog daemon\n" " -f FILE Log file to write messages to, instead of syslog daemon\n"
" -h HOST Send (UDP) message to this remote syslog server (IP or DNS name)\n" " -h HOST Send (UDP) message to this remote syslog server (IP or DNS name)\n"
" -H NAME Use NAME instead of system hostname in message header\n"
" -i Log process ID of the logger process with each line (LOG_PID)\n" " -i Log process ID of the logger process with each line (LOG_PID)\n"
#ifdef __linux__ #ifdef __linux__
" -k Log to kernel /dev/kmsg if /dev/log doesn't exist yet\n" " -k Log to kernel /dev/kmsg if /dev/log doesn't exist yet\n"
@ -277,7 +278,7 @@ int main(int argc, char *argv[])
int c, num = 5; int c, num = 5;
int rotate = 0; int rotate = 0;
while ((c = getopt(argc, argv, "46?bcd:f:h:ikm:np:P:r:st:u:v")) != EOF) { while ((c = getopt(argc, argv, "46?bcd:f:h:H:ikm:np:P:r:st:u:v")) != EOF) {
switch (c) { switch (c) {
case '4': case '4':
family = AF_INET; family = AF_INET;
@ -307,6 +308,10 @@ int main(int argc, char *argv[])
host = optarg; host = optarg;
break; break;
case 'H':
strlcpy(log.log_hostname, optarg, sizeof(log.log_hostname));
break;
case 'i': case 'i':
log_opts |= LOG_PID; log_opts |= LOG_PID;
break; break;