add kill, thanks rob

This commit is contained in:
Connor Lane Smith 2011-06-10 02:29:10 +01:00
parent 8d087ae4fb
commit e180a91172
3 changed files with 69 additions and 0 deletions

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@ -22,6 +22,7 @@ SRC = \
fold.c \ fold.c \
grep.c \ grep.c \
head.c \ head.c \
kill.c \
ln.c \ ln.c \
ls.c \ ls.c \
mkdir.c \ mkdir.c \

18
kill.1 Normal file
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@ -0,0 +1,18 @@
.TH KILL 1 sbase\-VERSION
.SH NAME
KILL \- compare two files
.SH SYNOPSIS
.B kill
.RB [ \-s ]
.RI [ pid ...]
.SH DESCRIPTION
.B kill
sends a
.I TERM
signal to the given processes.
.SH OPTIONS
.TP
.BI \-s " signal"
sends the named signal.
.SH SEE ALSO
.IR kill (2)

50
kill.c Normal file
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/* See LICENSE file for copyright and license details. */
#include <stdlib.h>
#include <signal.h>
#include <strings.h>
#include <unistd.h>
#include "util.h"
#define LEN(x) (sizeof (x) / sizeof *(x))
struct {
const char *name;
int sig;
} sigs[] = {
#define SIG(n) { #n, SIG##n }
SIG(ABRT), SIG(ALRM), SIG(BUS), SIG(CHLD), SIG(CONT), SIG(FPE), SIG(HUP),
SIG(ILL), SIG(INT), SIG(KILL), SIG(PIPE), SIG(QUIT), SIG(SEGV), SIG(STOP),
SIG(TERM), SIG(TSTP), SIG(TTIN), SIG(TTOU), SIG(USR1), SIG(USR2), SIG(URG),
#undef SIG
};
int
main(int argc, char *argv[])
{
char c, *end;
int i, sig = SIGTERM;
pid_t pid;
while((c = getopt(argc, argv, "s:")) != -1)
switch(c) {
case 's':
for(i = 0; i < LEN(sigs); i++)
if(!strcasecmp(optarg, sigs[i].name)) {
sig = sigs[i].sig;
break;
}
if(i == LEN(sigs))
eprintf("%s: unknown signal\n", optarg);
break;
default:
exit(EXIT_FAILURE);
}
for(; optind < argc; optind++) {
pid = strtol(argv[optind], &end, 0);
if(*end != '\0')
eprintf("%s: not a number\n", argv[optind]);
if(kill(pid, sig) == -1)
eprintf("kill %d:", pid);
}
return EXIT_SUCCESS;
}