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pidof was not returning PIDs of programs which were launched

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using a symbolic link. (ie /tmp/sleep when /tmp/sleep links to /usr/bin/sleep).
This is now fixed as we check both the realpath and symbolic path for processes.
In other words, "pidof /tmp/sleep" and "pidof /usr/bin/sleep" will return
the same PIDs when /tmp/sleep is a symbolic link to /usr/bin/sleep.
This commit is contained in:
Jesse 2023-03-22 12:34:55 -03:00
parent 86c5d7b93c
commit b70b2776ed
2 changed files with 11 additions and 0 deletions
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5
doc/Changelog
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@ -2,6 +2,11 @@ sysvinit (3.07) released; urgency=low
* Fixed killall5 so that processes in the omit list are
not sent any signals, including SIGSTOP.
* Fixed usage message for killall5 to be more accurate.
* pidof was not returning PIDs of programs which were launched
using a symbolic link. (ie /tmp/sleep when /tmp/sleep links to /usr/bin/sleep).
This is now fixed as we check both the realpath and symbolic path for processes.
In other words, "pidof /tmp/sleep" and "pidof /usr/bin/sleep" will return
the same PIDs when /tmp/sleep is a symbolic link to /usr/bin/sleep.
sysvinit (3.06) released; urgency=low

6
src/killall5.c
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@ -763,6 +763,11 @@ PIDQ_HEAD *pidof(char *prog)
add_pid_to_q(q, p);
foundone++;
}
else if ( (p->argv0) && (! strcmp(p->argv0, prog) ) )
{
add_pid_to_q(q, p);
foundone++;
}
}
}
@ -826,6 +831,7 @@ PIDQ_HEAD *pidof(char *prog)
* as was done in earlier versions of this program, since this
* allows /aaa/foo to match /bbb/foo .
*/
ok |=
(p->argv0 && strcmp(p->argv0, prog) == 0)
|| (p->argv0 && s != prog && strcmp(p->argv0, s) == 0)