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Support kill by signal name

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This commit is contained in:
Kevin Lange 2017-01-03 15:51:22 +09:00
parent dd8862447f
commit 67bcb173c4
1 changed files with 75 additions and 4 deletions
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79
userspace/core/kill.c
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@ -1,8 +1,7 @@
/* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2013 Kevin Lange
*/
/*
* Copyright (C) 2013-2017 Kevin Lange
*
* kill
*
* Send a signal to another process
@ -13,6 +12,51 @@
#include <unistd.h>
#include <signal.h>
struct sig_def {
int sig;
const char * name;
};
struct sig_def signals[] = {
{SIGHUP,"HUP"},
{SIGINT,"INT"},
{SIGQUIT,"QUIT"},
{SIGILL,"ILL"},
{SIGTRAP,"TRAP"},
{SIGABRT,"ABRT"},
{SIGEMT,"EMT"},
{SIGFPE,"FPE"},
{SIGKILL,"KILL"},
{SIGBUS,"BUS"},
{SIGSEGV,"SEGV"},
{SIGSYS,"SYS"},
{SIGPIPE,"PIPE"},
{SIGALRM,"ALRM"},
{SIGTERM,"TERM"},
{SIGUSR1,"USR1"},
{SIGUSR2,"USR2"},
{SIGCHLD,"CHLD"},
{SIGPWR,"PWR"},
{SIGWINCH,"WINCH"},
{SIGURG,"URG"},
{SIGPOLL,"POLL"},
{SIGSTOP,"STOP"},
{SIGTSTP,"TSTP"},
{SIGCONT,"CONT"},
{SIGTTIN,"TTIN"},
{SIGTTOUT,"TTOUT"},
{SIGVTALRM,"VTALRM"},
{SIGPROF,"PROF"},
{SIGXCPU,"XCPU"},
{SIGXFSZ,"XFSZ"},
{SIGWAITING,"WAITING"},
{SIGDIAF,"DIAF"},
{SIGHATE,"HATE"},
{SIGWINEVENT,"WINEVENT"},
{SIGCAT,"CAT"},
{0,NULL},
};
void usage(char * argv[]) {
printf(
"kill - send a signal to another process\n"
@ -36,7 +80,34 @@ int main(int argc, char * argv[]) {
if (argc > 2) {
if (argv[1][0] == '-') {
signum = atoi(argv[1]+1);
signum = -1;
if (strlen(argv[1]+1) > 3 && !strncmp(argv[1]+1,"SIG",3)) {
struct sig_def * s = signals;
while (s->name) {
if (!strcmp(argv[1]+4,s->name)) {
signum = s->sig;
break;
}
s++;
}
} else {
if (argv[1][1] < '0' || argv[1][1] > '9') {
struct sig_def * s = signals;
while (s->name) {
if (!strcmp(argv[1]+1,s->name)) {
signum = s->sig;
break;
}
s++;
}
} else {
signum = atoi(argv[1]+1);
}
}
if (signum == -1) {
fprintf(stderr,"%s: %s: invalid signal specification\n",argv[0],argv[1]+1);
return 1;
}
} else {
usage(argv);
return 1;