kill.c revision 4f6e8d7a00cbeda1e70cc15be9c4af1018bdad53 
1#include <stdio.h>
2#include <stdlib.h>
3#include <errno.h>
4
5#include <sys/types.h>
6#include <signal.h>
7
8int kill_main(int argc, char **argv)
9{
10    int sig = SIGTERM;
11    int result = 0;
12
13    argc--;
14    argv++;
15
16    if(argc >= 2 && argv[0][0] == '-'){
17        sig = atoi(argv[0] + 1);
18        argc--;
19        argv++;
20    }
21
22    while(argc > 0){
23        int pid = atoi(argv[0]);
24        int err = kill(pid, sig);
25        if (err < 0) {
26            result = err;
27            fprintf(stderr, "could not kill pid %d: %s\n", pid, strerror(errno));
28        }
29
30        argc--;
31        argv++;
32    }
33
34    return result;
35}
36