vanhofen
4 years ago
4 changed files with 250 additions and 0 deletions
@ -0,0 +1,191 @@ |
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From 6c490ea6579a132fabb7dbd25387bb521f820371 Mon Sep 17 00:00:00 2001 |
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From: Hongxu Jia <hongxu.jia@windriver.com> |
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Date: Wed, 24 Jul 2013 17:07:22 +0800 |
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Subject: [PATCH] pidof: add -m option |
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|
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When used with -o, will also omit any processes that have the same |
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argv[0] and argv[1] as any explicitly omitted process ids. This can be |
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used to avoid multiple shell scripts concurrently calling pidof returning |
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each other's pids. |
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https://bugzilla.redhat.com/show_bug.cgi?id=883856 |
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Upstream-Status: backport |
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Imported patch from: https://bugzilla.redhat.com/attachment.cgi?id=658166 |
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Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> |
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---
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man/pidof.8 | 6 +++++ |
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src/killall5.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++--- |
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2 files changed, 65 insertions(+), 3 deletions(-) |
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diff --git a/man/pidof.8 b/man/pidof.8
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index ebe5f55..2fdc4d3 100644
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--- a/man/pidof.8
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+++ b/man/pidof.8
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@@ -25,6 +25,7 @@ pidof -- find the process ID of a running program.
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.RB [ \-n ] |
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.RB [ \-x ] |
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.RB [ \-z ] |
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+.RB [ \-m ]
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.RB [ \-o |
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.IR omitpid[,omitpid...] ] |
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.RB [ \-o |
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@@ -76,6 +77,11 @@ is shown. The default separator is a space.
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Tells \fIpidof\fP to omit processes with that process id. The special |
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pid \fB%PPID\fP can be used to name the parent process of the \fIpidof\fP |
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program, in other words the calling shell or shell script. |
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+.IP -m
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+When used with -o, will also omit any processes that have the same
|
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+argv[0] and argv[1] as any explicitly omitted process ids. This can be
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+used to avoid multiple shell scripts concurrently calling pidof returning
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+each other's pids.
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.SH "EXIT STATUS" |
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.TP |
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.B 0 |
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diff --git a/src/killall5.c b/src/killall5.c
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index 8b5cb38..a664954 100644
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--- a/src/killall5.c
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+++ b/src/killall5.c
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@@ -126,6 +126,7 @@
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/* List of processes. */ |
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PROC *plist; |
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+PROC *olist;
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/* List of processes to omit. */ |
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OMIT *omit; |
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@@ -357,6 +358,20 @@
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} |
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if (p->shadow) |
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clear_shadow(p->shadow); |
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+ free(p);
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+ }
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+}
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+
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+static void clear_omit(void)
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+{
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+ OMIT *o;
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+ PROC *p;
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+ for (o = omit; o; o = omit) {
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+ omit = omit->next;
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+ free(o);
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+ }
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+ for (p = olist; p; p = olist) {
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+ olist = olist->next;
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free(p); |
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} |
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} |
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@@ -486,6 +501,7 @@
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DIR *dir; |
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FILE *fp; |
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PROC *p, *n; |
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+ OMIT *o, *m;
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struct dirent *d; |
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struct stat st; |
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char path[PATH_MAX+1]; |
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@@ -726,6 +742,17 @@
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p->next = plist; |
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plist = p; |
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p->pid = pid; |
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+ /* Could be smarter, but it's a small list. */
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+ m = omit;
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+ for (o = omit; m; o = m) {
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+ m = o->next;
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+ if (o->pid == p->pid) {
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+ n = (PROC*)xmalloc(sizeof(PROC));
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+ *n = *p;
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+ n->next = olist;
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+ olist = n;
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+ }
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+ }
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} |
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closedir(dir); |
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@@ -937,6 +964,26 @@
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return q; |
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} |
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+int matches(PROC *o, PROC *p)
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+{
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+ int ret = 0;
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+ char *oargv1, *pargv1;
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+ if ((o->argv0 && p->argv0 && !strcmp(o->argv0,p->argv0))) {
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+ if (o->argv1 && p->argv1) {
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+ if ((oargv1 = canonicalize_file_name(o->argv1)) == NULL)
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+ oargv1 = strdup(o->argv1);
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+ if ((pargv1 = canonicalize_file_name(p->argv1)) == NULL)
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+ pargv1 = strdup(p->argv1);
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+ if (! strcmp(oargv1, pargv1)) {
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+ ret = 1;
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+ }
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+ free(oargv1);
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+ free(pargv1);
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+ }
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+ }
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+ return ret;
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+}
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+
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/* Give usage message and exit. */ |
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void usage(void) |
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{ |
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@@ -987,6 +1034,7 @@
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#define PIDOF_OMIT 0x02 |
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#define PIDOF_NETFS 0x04 |
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#define PIDOF_QUIET 0x08 |
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+#define PIDOF_OMIT_OMIT_MATCHES 0x08
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/* |
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* Pidof functionality. |
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@@ -1004,6 +1052,7 @@
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char tmp[512]; |
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char sep = ' '; |
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+ olist = (PROC*)0;
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omit = (OMIT*)0; |
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nlist = (NFS*)0; |
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opterr = 0; |
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@@ -1011,7 +1060,7 @@
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if ((token = getenv("PIDOF_NETFS")) && (strcmp(token,"no") != 0)) |
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flags |= PIDOF_NETFS; |
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- while ((opt = getopt(argc,argv,"qhco:d:sxzn")) != EOF) switch (opt) {
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+ while ((opt = getopt(argc,argv,"qhcmo:d:sxzn")) != EOF) switch (opt) {
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case '?': |
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nsyslog(LOG_ERR,"invalid options on command line!\n"); |
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closelog(); |
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@@ -1062,6 +1111,9 @@
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case 'z': |
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list_dz_processes = TRUE; |
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break; |
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+ case 'm':
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+ flags |= PIDOF_OMIT_OMIT_MATCHES;
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+ break;
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case 'n': |
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flags |= PIDOF_NETFS; |
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break; |
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@@ -1093,10 +1145,13 @@
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pid_t spid = 0; |
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while ((p = get_next_from_pid_q(q))) { |
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if ((flags & PIDOF_OMIT) && omit) { |
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- OMIT * optr;
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- for (optr = omit; optr; optr = optr->next) {
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+ PROC * optr;
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+ for (optr = olist; optr; optr = optr->next) {
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if (optr->pid == p->pid) |
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break; |
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+ if (flags & PIDOF_OMIT_OMIT_MATCHES)
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+ if (matches(optr, p))
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+ break;
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} |
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/* |
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@@ -1138,6 +1193,7 @@
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printf("\n"); |
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} |
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+ clear_omit();
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clear_mnt(); |
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closelog(); |
@ -0,0 +1,59 @@ |
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From eb158c97f19d473d01befe96359a7f93ae834517 Mon Sep 17 00:00:00 2001 |
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From: Khem Raj <raj.khem@gmail.com> |
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Date: Thu, 19 Nov 2015 00:10:03 +0000 |
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Subject: [PATCH] Fix build on musl use realpath() API its available on all |
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libcs |
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realpath() API doesnt work on systems with PATH_MAX set to be unlimited e.g. GNU/Hurd |
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However for Linux it should always work |
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Upstream-Status: Inappropriate[Linux specific] |
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Signed-off-by: Khem Raj <raj.khem@gmail.com> |
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---
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src/killall5.c | 4 ++-- |
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src/mountpoint.c | 1 + |
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src/wall.c | 1 + |
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3 files changed, 4 insertions(+), 2 deletions(-) |
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|
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diff --git a/src/killall5.c b/src/killall5.c
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index a664954..9798423 100644
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--- a/src/killall5.c
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+++ b/src/killall5.c
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@@ -970,9 +970,9 @@
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char *oargv1, *pargv1; |
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if ((o->argv0 && p->argv0 && !strcmp(o->argv0,p->argv0))) { |
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if (o->argv1 && p->argv1) { |
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- if ((oargv1 = canonicalize_file_name(o->argv1)) == NULL)
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+ if ((oargv1 = realpath(o->argv1, NULL)) == NULL)
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oargv1 = strdup(o->argv1); |
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- if ((pargv1 = canonicalize_file_name(p->argv1)) == NULL)
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+ if ((pargv1 = realpath(p->argv1, NULL)) == NULL)
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pargv1 = strdup(p->argv1); |
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if (! strcmp(oargv1, pargv1)) { |
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ret = 1; |
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diff --git a/src/mountpoint.c b/src/mountpoint.c
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index b24335e..5f20522 100644
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--- a/src/mountpoint.c
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+++ b/src/mountpoint.c
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@@ -23,6 +23,7 @@
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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+#include <sys/types.h>
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#include <sys/stat.h> |
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#include <unistd.h> |
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#include <stdlib.h> |
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diff --git a/src/wall.c b/src/wall.c
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index d3a2c70..00826e9 100644
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--- a/src/wall.c
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+++ b/src/wall.c
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@@ -30,6 +30,7 @@
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#include <pwd.h> |
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#include <syslog.h> |
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#include <sys/types.h> |
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+#include <time.h>
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#include "init.h" |
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