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Merge branch '3.07'

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This commit is contained in:
Jesse 2023-04-30 13:56:01 -03:00
commit 3401b62142
2 changed files with 43 additions and 15 deletions
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16
doc/Changelog
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@ -1,4 +1,18 @@
sysvinit (3.06) unreleased; urgency=low
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.
* Fixed memory initialization error in pidof. Fix provided by Markus Fischer.
* Accepted patch from Mark Hindley which avoids clearing realpath information
in pidof when trying to find matching executables.
sysvinit (3.06) released; urgency=low
* Mark Hindley fixed typo in es.po
* Mark Hindley cleaned up translation code in src/Makefile.
* Drop sulogin from Debian build. Removed libcrypt-dev dependency.

42
src/killall5.c
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@ -120,16 +120,16 @@ typedef struct _s_nfs
} NFS;
/* List of processes. */
PROC *plist;
PROC *plist = NULL;
/* List of processes to omit. */
OMIT *omit;
OMIT *omit = NULL;
/* List of NFS mountes partitions. */
NFS *nlist;
NFS *nlist = NULL;
/* Did we stop all processes ? */
int sent_sigstop;
int sent_sigstop = 0;
int scripts_too = 0;
/* Should pidof try to list processes in I/O wait (D) and zombie (Z) states? */
@ -662,6 +662,7 @@ int readproc()
/* Try to stat the executable. */
snprintf(path, sizeof(path), "/proc/%s/exe", d->d_name);
p->pathname = (char *)xmalloc(PATH_MAX);
memset(p->pathname, 0, PATH_MAX);
if (readlink(path, p->pathname, PATH_MAX) == -1) {
p->pathname = NULL;
}
@ -739,8 +740,8 @@ PIDQ_HEAD *pidof(char *prog)
return NULL;
/* Try to stat the executable. */
memset(real_path, 0, sizeof(real_path));
if ( (prog[0] == '/') && ( realpath(prog, real_path) ) ) {
memset(&real_path[0], 0, sizeof(real_path));
dostat++;
}
@ -763,6 +764,11 @@ 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 +832,7 @@ 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)
@ -873,7 +880,7 @@ PIDQ_HEAD *pidof(char *prog)
/* Give usage message and exit. */
void usage(void)
{
nsyslog(LOG_ERR, "only one argument, a signal number, allowed");
nsyslog(LOG_ERR, "usage: killall5 -signum [-o omitpid] [-o omitpid] ...");
closelog();
exit(1);
}
@ -1152,19 +1159,25 @@ int main(int argc, char **argv)
/* lock us into memory */
mlockall(MCL_CURRENT | MCL_FUTURE);
/* Now stop all processes. */
kill(-1, SIGSTOP);
sent_sigstop = 1;
/* Get our session ID and PID to make sure we do not kill ourselves or our session. */
sid = (int)getsid(0);
pid = (int)getpid();
/* Now stop all processes, unless there are some we should omit. */
if (! omit)
{
kill(-1, SIGSTOP);
sent_sigstop = 1;
}
/* Read /proc filesystem */
if (readproc() < 0) {
if (sent_sigstop)
kill(-1, SIGCONT);
return(1);
return(1);
}
/* Now kill all processes except init (pid 1) and our session. */
sid = (int)getsid(0);
pid = (int)getpid();
for (p = plist; p; p = p->next) {
if (p->pid == 1 || p->pid == pid || p->sid == sid || p->kernel)
continue;
@ -1179,14 +1192,15 @@ int main(int argc, char **argv)
/* On a match, continue with the for loop above. */
if (optr)
continue;
}
} /* end of skipping PIDs to omit */
kill(p->pid, sig);
retval = 0;
}
/* And let them continue. */
kill(-1, SIGCONT);
if (sent_sigstop)
kill(-1, SIGCONT);
/* Done. */
closelog();