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authorAshwini Sharma <ak.ashwini1981@gmail.com>2014-05-29 08:21:48 -0500
committerAshwini Sharma <ak.ashwini1981@gmail.com>2014-05-29 08:21:48 -0500
commitb0d97a0059555cb0e7e0009b72c038aa67aaa769 (patch)
tree1bd3f7d7c3ef817fdeaad17440e5bdbe6f9cff5d /toys/pending/killall5.c
parent9f1a00a859d1b085fdf7a1a5f66e51f41c6217ee (diff)
downloadtoybox-b0d97a0059555cb0e7e0009b72c038aa67aaa769.tar.gz
killall5 - kill all the processes not in its session.
Diffstat (limited to 'toys/pending/killall5.c')
-rw-r--r--toys/pending/killall5.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/toys/pending/killall5.c b/toys/pending/killall5.c
new file mode 100644
index 00000000..4d9dadce
--- /dev/null
+++ b/toys/pending/killall5.c
@@ -0,0 +1,97 @@
+/* killall5.c - Send signal (default: TERM) to all processes outside current session.
+ *
+ * Copyright 2014 Ranjan Kumar <ranjankumar.bth@gmail.com>
+ * Copyright 2014 Kyungwan Han <asura321@gamil.com>
+ *
+ * No Standard
+
+USE_KILLALL5(NEWTOY(killall5, "?o*ls:[!lo]", TOYFLAG_SBIN))
+
+config KILLALL5
+ bool "killall5"
+ default n
+ help
+ usage: killall5 [-l] [-SIGNAL|-s SIGNAL] [-o PID]...
+
+ Send a signal (default: TERM) to all processes outside current session.
+
+ -l List all signal names and numbers
+ -o PID Don't signal this PID
+ -s send SIGNAL instead of SIGTERM
+*/
+#define FOR_killall5
+#include "toys.h"
+
+GLOBALS(
+ char *signame;
+ struct arg_list *olist;
+)
+
+void killall5_main(void)
+{
+ DIR *dp;
+ struct dirent *entry;
+ int signo, pid, sid, signum = SIGTERM;
+ long *olist = NULL, ocount = 0;
+ char *s, **args = toys.optargs;
+
+ // list all signal names and numbers
+ if (toys.optflags & FLAG_l) {
+ if (*args) {
+ for (; *args; args++) {
+ signo = sig_to_num(*args);
+ if (isdigit(**args) && (s = num_to_sig(signo&127))) xputs(s);
+ else if (signo > 0) xprintf("%d\n", signo);
+ else error_exit("UNKNOWN signal '%s'", *args);
+ }
+ } else sig_to_num(NULL);
+ return;
+ }
+
+ // when SIGNUM will be in the form of -SIGNUM
+ if (TT.signame || (*args && **args == '-')) {
+ if (0 > (signum = sig_to_num(TT.signame ? TT.signame : (*args)+1)))
+ error_exit("Unknown signal '%s'", *args);
+ if (!TT.signame) args++;
+ }
+ pid = getpid();
+ sid = getsid(pid);
+
+ // prepare omit list
+ if (toys.optflags & FLAG_o) {
+ struct arg_list *ptr = TT.olist;
+
+ if (*args) error_exit("invalid omit list");
+ for (; ptr; ptr=ptr->next) {
+ long val = atolx(ptr->arg);
+ olist = xrealloc(olist, (ocount+1)*sizeof(long));
+ olist[ocount++] = val;
+ }
+ }
+
+ if (!(dp = opendir("/proc"))) perror_exit("opendir");
+ while ((entry = readdir(dp))) {
+ int count, procpid, procsid;
+
+ if (!(procpid = atoi(entry->d_name))) continue;
+ snprintf(toybuf, sizeof(toybuf), "/proc/%d/stat", procpid);
+ if (!readfile(toybuf, toybuf, sizeof(toybuf))) continue;
+ if (sscanf(toybuf, "%*d %*s %*c %*d %*d %d", &procsid) != 1) continue;
+ if (pid == procpid || sid == procsid || procpid == 1) continue;
+
+ // Check for kernel threads.
+ snprintf(toybuf, sizeof(toybuf), "/proc/%d/cmdline", procpid);
+ if (readfile(toybuf, toybuf, sizeof(toybuf)) && !*toybuf) continue;
+
+ // Check with omit list.
+ if (toys.optflags & FLAG_o) {
+ for (count = 0; count < ocount; count++) {
+ if (procpid == olist[count]) goto OMIT;
+ }
+ }
+ kill(procpid, signum);
+OMIT: ;
+ }
+ closedir(dp);
+ if (CFG_TOYBOX_FREE && olist) free(olist);
+}