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/* vi: set sw=4 ts=4:
*
* killall.c - Send signal (default: TERM) to all processes with given names.
*
* Copyright 2012 Andreas Heck <aheck@gmx.de>
*
* Not in SUSv4.
USE_KILLALL(NEWTOY(killall, "<1?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(pid_t pid)
{
int ret;
TT.matched = 1;
ret = kill(pid, TT.signum);
if (ret == -1 && !(toys.optflags & FLAG_q)) perror("kill");
}
void killall_main(void)
{
char **names;
TT.signum = SIGTERM;
if (toys.optflags & FLAG_l) {
print_signals();
return;
}
if (!*toys.optargs) {
toys.exithelp = 1;
error_exit("Process name missing!");
}
names = toys.optargs;
if (**names == '-') {
TT.signum = sig_to_num((*names)+1);
if (TT.signum <= 0) {
if (toys.optflags & FLAG_q) error_exit("Invalid signal");
exit(1);
}
names++;
}
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);
}
}
|
