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authorRob Landley <rob@landley.net>2012-02-18 15:12:41 -0600
committerRob Landley <rob@landley.net>2012-02-18 15:12:41 -0600
commitff9ee8fc15e1a41bffe06bfcee30368e7c117601 (patch)
tree4806b88fe328eb96c4a9f7df41dd5c8859a56117 /toys/killall.c
parent3c1104ff57f22495a7711eabb4c0d3b5cda4a982 (diff)
downloadtoybox-ff9ee8fc15e1a41bffe06bfcee30368e7c117601.tar.gz
Add killall by Andreas Heck, and factor out common pid code to lib.h.
Diffstat (limited to 'toys/killall.c')
-rw-r--r--toys/killall.c229
1 files changed, 229 insertions, 0 deletions
diff --git a/toys/killall.c b/toys/killall.c
new file mode 100644
index 00000000..fb3e8cb3
--- /dev/null
+++ b/toys/killall.c
@@ -0,0 +1,229 @@
+/* vi: set sw=4 ts=4:
+ *
+ * killall.c - Send a signal (default: TERM) to all processes with the given names.
+ *
+ * Copyright 2012 Andreas Heck <aheck@gmx.de>
+ *
+ * Not in SUSv4.
+ * See http://opengroup.org/onlinepubs/9699919799/utilities/
+
+USE_KILLALL(NEWTOY(killall, "?lq", TOYFLAG_USR|TOYFLAG_BIN))
+
+config KILLALL
+ bool "killall"
+ default y
+ help
+ usage: killall [-l] [-q] [-SIG] PROCESS_NAME...
+
+ Send a signal (default: TERM) to all processes with the given names.
+
+ -l print list of all available signals
+ -q don't print any warnings or error messages
+*/
+
+#include "toys.h"
+
+#define FLAG_q 1
+#define FLAG_l 2
+
+DEFINE_GLOBALS(
+ int matched;
+ int signum;
+)
+#define TT this.killall
+
+struct signame {
+ int num;
+ const char *name;
+};
+
+static struct signame signames[] = {
+#ifdef SIGHUP
+ {SIGHUP, "HUP"},
+#endif
+#ifdef SIGINT
+ {SIGINT, "INT"},
+#endif
+#ifdef SIGQUIT
+ {SIGQUIT, "QUIT"},
+#endif
+#ifdef SIGILL
+ {SIGILL, "ILL"},
+#endif
+#ifdef SIGTRAP
+ {SIGTRAP, "TRAP"},
+#endif
+#ifdef SIGTABRT
+ {SIGABRT, "ABRT"},
+#endif
+#ifdef SIGTABRT
+ {SIGIOT, "IOT"},
+#endif
+#ifdef SIGBUS
+ {SIGBUS, "BUS"},
+#endif
+#ifdef SIGFPE
+ {SIGFPE, "FPE"},
+#endif
+#ifdef SIGKILL
+ {SIGKILL, "KILL"},
+#endif
+#ifdef SIGUSR1
+ {SIGUSR1, "USR1"},
+#endif
+#ifdef SIGSEGV
+ {SIGSEGV, "SEGV"},
+#endif
+#ifdef SIGUSR2
+ {SIGUSR2, "USR2"},
+#endif
+#ifdef SIGPIPE
+ {SIGPIPE, "PIPE"},
+#endif
+#ifdef SIGALRM
+ {SIGALRM, "ALRM"},
+#endif
+#ifdef SIGTERM
+ {SIGTERM, "TERM"},
+#endif
+#ifdef SIGSTKFLT
+ {SIGSTKFLT, "STKFLT"},
+#endif
+#ifdef SIGCHLD
+ {SIGCHLD, "CHLD"},
+#endif
+#ifdef SIGCONT
+ {SIGCONT, "CONT"},
+#endif
+#ifdef SIGSTOP
+ {SIGSTOP, "STOP"},
+#endif
+#ifdef SIGSTOP
+ {SIGSTOP, "STOP"},
+#endif
+#ifdef SIGTSTP
+ {SIGTSTP, "TSTP"},
+#endif
+#ifdef SIGTTIN
+ {SIGTTIN, "TTIN"},
+#endif
+#ifdef SIGTTOU
+ {SIGTTOU, "TTOU"},
+#endif
+#ifdef SIGURG
+ {SIGURG, "URG"},
+#endif
+#ifdef SIGXCPU
+ {SIGXCPU, "XCPU"},
+#endif
+#ifdef SIGXFSZ
+ {SIGXFSZ, "XFSZ"},
+#endif
+#ifdef SIGVTALRM
+ {SIGVTALRM, "VTALRM"},
+#endif
+#ifdef SIGVTALRM
+ {SIGVTALRM, "VTALRM"},
+#endif
+#ifdef SIGPROF
+ {SIGPROF, "PROF"},
+#endif
+#ifdef SIGWINCH
+ {SIGWINCH, "WINCH"},
+#endif
+#ifdef SIGIO
+ {SIGIO, "IO"},
+#endif
+#ifdef SIGPOLL
+ {SIGPOLL, "POLL"},
+#endif
+#ifdef SIGPWR
+ {SIGPWR, "PWR"},
+#endif
+#ifdef SIGSYS
+ {SIGSYS, "SYS"},
+#endif
+#ifdef SIGUNUSED
+ {SIGUNUSED, "UNUSED"},
+#endif
+ {0, NULL}
+};
+
+static int sig_to_num(const char *pidstr) {
+ int i, num;
+
+ if (isdigit(pidstr[0])) {
+ num = atoi(pidstr);
+
+ return num;
+ }
+
+ for (i = 0; signames[i].num; i++) {
+ if (strcmp(pidstr, signames[i].name) == 0) {
+ return signames[i].num;
+ }
+ }
+
+ return -1;
+}
+
+static void print_signals() {
+ int i;
+
+ for (i = 0; signames[i].num; i++) {
+ puts(signames[i].name);
+ }
+}
+
+static void kill_process(const char *pidstr) {
+ int ret;
+ pid_t pid = atoi(pidstr);
+
+ TT.matched = 1;
+ ret = kill(pid, TT.signum);
+
+ if (ret == -1) {
+ if (toys.optflags & FLAG_q) perror("kill");
+ }
+}
+
+void killall_main(void)
+{
+ char **names;
+
+ TT.matched = 0;
+ TT.signum = SIGTERM;
+
+ if (toys.optflags & FLAG_l) {
+ print_signals();
+ exit(0);
+ }
+
+ if (!*toys.optargs) {
+ toys.exithelp = 1;
+ error_exit("Process name missing!");
+ }
+
+ names = toys.optargs;
+
+ if ((*toys.optargs)[0] == '-') {
+ TT.signum = sig_to_num(&(*toys.optargs)[1]);
+ if (TT.signum <= 0) {
+ if (toys.optflags & FLAG_q) fprintf(stderr, "Invalid signal\n");
+ exit(1);
+ }
+ names = ++toys.optargs;
+ }
+
+ if (!*names) {
+ toys.exithelp = 1;
+ error_exit("Process name missing!");
+ }
+
+ for_each_pid_with_name_in(names, kill_process);
+
+ if (!TT.matched) {
+ if (!(toys.optflags & FLAG_q)) fprintf(stderr, "No such process\n");
+ exit(1);
+ }
+}