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Diffstat (limited to 'toys/killall.c')
| -rw-r--r-- | toys/killall.c | 229 |
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); + } +} |