diff options
Diffstat (limited to 'kill.c')
| -rw-r--r-- | kill.c | 299 |
1 files changed, 150 insertions, 149 deletions
@@ -1,3 +1,4 @@ +/* vi: set sw=4 ts=4: */ /* * Mini kill implementation for busybox * @@ -29,188 +30,188 @@ #include <sys/stat.h> #include <unistd.h> -static const char* kill_usage = "kill [-signal] process-id [process-id ...]\n\n" -"Send a signal (default is SIGTERM) to the specified process(es).\n\n" -"Options:\n" -"\t-l\tList all signal names and numbers.\n\n"; +static const char *kill_usage = + "kill [-signal] process-id [process-id ...]\n\n" + "Send a signal (default is SIGTERM) to the specified process(es).\n\n" + "Options:\n" "\t-l\tList all signal names and numbers.\n\n"; struct signal_name { - const char *name; - int number; + const char *name; + int number; }; const struct signal_name signames[] = { - {"HUP", SIGHUP}, - {"INT", SIGINT}, - {"QUIT", SIGQUIT}, - {"ILL", SIGILL}, - {"TRAP", SIGTRAP}, - {"ABRT", SIGABRT}, + {"HUP", SIGHUP}, + {"INT", SIGINT}, + {"QUIT", SIGQUIT}, + {"ILL", SIGILL}, + {"TRAP", SIGTRAP}, + {"ABRT", SIGABRT}, #ifndef __alpha__ - {"IOT", SIGIOT}, + {"IOT", SIGIOT}, #endif #if defined(__sparc__) || defined(__alpha__) - {"EMT", SIGEMT}, + {"EMT", SIGEMT}, #else - {"BUS", SIGBUS}, + {"BUS", SIGBUS}, #endif - {"FPE", SIGFPE}, - {"KILL", SIGKILL}, + {"FPE", SIGFPE}, + {"KILL", SIGKILL}, #if defined(__sparc__) || defined(__alpha__) - {"BUS", SIGBUS}, + {"BUS", SIGBUS}, #else - {"USR1", SIGUSR1}, + {"USR1", SIGUSR1}, #endif - {"SEGV", SIGSEGV}, + {"SEGV", SIGSEGV}, #if defined(__sparc__) || defined(__alpha__) - {"SYS", SIGSYS}, + {"SYS", SIGSYS}, #else - {"USR2", SIGUSR2}, + {"USR2", SIGUSR2}, #endif - {"PIPE", SIGPIPE}, - {"ALRM", SIGALRM}, - {"TERM", SIGTERM}, + {"PIPE", SIGPIPE}, + {"ALRM", SIGALRM}, + {"TERM", SIGTERM}, #if defined(__sparc__) || defined(__alpha__) - {"URG", SIGURG}, - {"STOP", SIGSTOP}, - {"TSTP", SIGTSTP}, - {"CONT", SIGCONT}, - {"CHLD", SIGCHLD}, - {"TTIN", SIGTTIN}, - {"TTOU", SIGTTOU}, - {"IO", SIGIO}, + {"URG", SIGURG}, + {"STOP", SIGSTOP}, + {"TSTP", SIGTSTP}, + {"CONT", SIGCONT}, + {"CHLD", SIGCHLD}, + {"TTIN", SIGTTIN}, + {"TTOU", SIGTTOU}, + {"IO", SIGIO}, # ifndef __alpha__ - {"POLL", SIGIO}, + {"POLL", SIGIO}, # endif - {"XCPU", SIGXCPU}, - {"XFSZ", SIGXFSZ}, - {"VTALRM", SIGVTALRM}, - {"PROF", SIGPROF}, - {"WINCH", SIGWINCH}, + {"XCPU", SIGXCPU}, + {"XFSZ", SIGXFSZ}, + {"VTALRM", SIGVTALRM}, + {"PROF", SIGPROF}, + {"WINCH", SIGWINCH}, # ifdef __alpha__ - {"INFO", SIGINFO}, + {"INFO", SIGINFO}, # else - {"LOST", SIGLOST}, + {"LOST", SIGLOST}, # endif - {"USR1", SIGUSR1}, - {"USR2", SIGUSR2}, + {"USR1", SIGUSR1}, + {"USR2", SIGUSR2}, #else - {"STKFLT", SIGSTKFLT}, - {"CHLD", SIGCHLD}, - {"CONT", SIGCONT}, - {"STOP", SIGSTOP}, - {"TSTP", SIGTSTP}, - {"TTIN", SIGTTIN}, - {"TTOU", SIGTTOU}, - {"URG", SIGURG}, - {"XCPU", SIGXCPU}, - {"XFSZ", SIGXFSZ}, - {"VTALRM", SIGVTALRM}, - {"PROF", SIGPROF}, - {"WINCH", SIGWINCH}, - {"IO", SIGIO}, - {"POLL", SIGPOLL}, - {"PWR", SIGPWR}, - {"UNUSED", SIGUNUSED}, + {"STKFLT", SIGSTKFLT}, + {"CHLD", SIGCHLD}, + {"CONT", SIGCONT}, + {"STOP", SIGSTOP}, + {"TSTP", SIGTSTP}, + {"TTIN", SIGTTIN}, + {"TTOU", SIGTTOU}, + {"URG", SIGURG}, + {"XCPU", SIGXCPU}, + {"XFSZ", SIGXFSZ}, + {"VTALRM", SIGVTALRM}, + {"PROF", SIGPROF}, + {"WINCH", SIGWINCH}, + {"IO", SIGIO}, + {"POLL", SIGPOLL}, + {"PWR", SIGPWR}, + {"UNUSED", SIGUNUSED}, #endif - {0, 0} + {0, 0} }; -extern int kill_main (int argc, char **argv) +extern int kill_main(int argc, char **argv) { - int sig = SIGTERM; - - argc--; - argv++; - /* Parse any options */ - if (argc < 1) - usage(kill_usage); - - while (argc > 0 && **argv == '-') { - while (*++(*argv)) { - switch (**argv) { - case 'l': - { - int col=0; - const struct signal_name *s = signames; - - while (s->name != 0) { - col+=fprintf(stderr, "%2d) %-8s", s->number, (s++)->name); - if (col>60) { - fprintf(stderr, "\n"); - col=0; - } - } - fprintf(stderr, "\n\n"); - exit( TRUE); - } - break; - case '-': + int sig = SIGTERM; + + argc--; + argv++; + /* Parse any options */ + if (argc < 1) usage(kill_usage); - default: - { - if (isdigit( **argv)) { - sig = atoi (*argv); - if (sig < 0 || sig >= NSIG) - goto end; - else { - argc--; - argv++; - goto do_it_now; - } - } - else { - const struct signal_name *s = signames; - while (s->name != 0) { - if (strcasecmp (s->name, *argv) == 0) { - sig = s->number; - argc--; - argv++; - goto do_it_now; - } - s++; + + while (argc > 0 && **argv == '-') { + while (*++(*argv)) { + switch (**argv) { + case 'l': + { + int col = 0; + const struct signal_name *s = signames; + + while (s->name != 0) { + col += + fprintf(stderr, "%2d) %-8s", s->number, + (s++)->name); + if (col > 60) { + fprintf(stderr, "\n"); + col = 0; + } + } + fprintf(stderr, "\n\n"); + exit(TRUE); + } + break; + case '-': + usage(kill_usage); + default: + { + if (isdigit(**argv)) { + sig = atoi(*argv); + if (sig < 0 || sig >= NSIG) + goto end; + else { + argc--; + argv++; + goto do_it_now; + } + } else { + const struct signal_name *s = signames; + + while (s->name != 0) { + if (strcasecmp(s->name, *argv) == 0) { + sig = s->number; + argc--; + argv++; + goto do_it_now; + } + s++; + } + if (s->name == 0) + goto end; + } + } } - if (s->name == 0) - goto end; - } + argc--; + argv++; } - } - argc--; - argv++; - } - } - -do_it_now: - - while (--argc >= 0) { - int pid; - struct stat statbuf; - char pidpath[20]="/proc/"; - - if (! isdigit( **argv)) { - fprintf(stderr, "bad PID: %s\n", *argv); - exit( FALSE); - } - pid = atoi (*argv); - snprintf(pidpath, 20, "/proc/%s/stat", *argv); - if (stat( pidpath, &statbuf)!=0) { - fprintf(stderr, "kill: (%d) - No such pid\n", pid); - exit( FALSE); } - fprintf(stderr, "sig = %d\n", sig); - if (kill (pid, sig) != 0) { - perror (*argv); - exit ( FALSE); - } - argv++; - } - exit ( TRUE); + do_it_now: -end: - fprintf(stderr, "bad signal name: %s\n", *argv); - exit (TRUE); -} + while (--argc >= 0) { + int pid; + struct stat statbuf; + char pidpath[20] = "/proc/"; + + if (!isdigit(**argv)) { + fprintf(stderr, "bad PID: %s\n", *argv); + exit(FALSE); + } + pid = atoi(*argv); + snprintf(pidpath, 20, "/proc/%s/stat", *argv); + if (stat(pidpath, &statbuf) != 0) { + fprintf(stderr, "kill: (%d) - No such pid\n", pid); + exit(FALSE); + } + fprintf(stderr, "sig = %d\n", sig); + if (kill(pid, sig) != 0) { + perror(*argv); + exit(FALSE); + } + argv++; + } + exit(TRUE); + end: + fprintf(stderr, "bad signal name: %s\n", *argv); + exit(TRUE); +} |