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/* kill.cc
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <windows.h>
#include <sys/cygwin.h>
#include <getopt.h>
static const char version[] = "$Revision$";
static char *prog_name;
static struct option longopts[] =
{
{"help", no_argument, NULL, 'h' },
{"list", optional_argument, NULL, 'l'},
{"force", no_argument, NULL, 'f'},
{"signal", required_argument, NULL, 's'},
{"version", no_argument, NULL, 'v'},
{NULL, 0, NULL, 0}
};
static char opts[] = "hl::fs:v";
extern "C" const char *strsigno (int);
static void
usage (FILE *where = stderr)
{
fprintf (where , ""
"Usage: %s [-f] [-signal] [-s signal] pid1 [pid2 ...]\n"
" %s -l [signal]\n"
" -f, --force force, using win32 interface if necessary\n"
" -l, --list print a list of signal names\n"
" -s, --signal send signal (use %s --list for a list)\n"
" -h, --help output usage information and exit\n"
" -v, --version output version information and exit\n"
"", prog_name, prog_name, prog_name);
exit (where == stderr ? 1 : 0);
}
static void
print_version ()
{
const char *v = strchr (version, ':');
int len;
if (!v)
{
v = "?";
len = 1;
}
else
{
v += 2;
len = strchr (v, ' ') - v;
}
printf ("\
%s (cygwin) %.*s\n\
Process Signaller\n\
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.\n\
Compiled on %s\n\
", prog_name, len, v, __DATE__);
}
static int
getsig (const char *in_sig)
{
const char *sig;
char buf[80];
int intsig;
if (strncmp (in_sig, "SIG", 3) == 0)
sig = in_sig;
else
{
sprintf (buf, "SIG%s", in_sig);
sig = buf;
}
intsig = strtosigno (sig) ?: atoi (in_sig);
char *p;
if (!intsig && (strcmp (buf, "SIG0") != 0 && (strtol (in_sig, &p, 10) != 0 || *p)))
intsig = -1;
return intsig;
}
static void
test_for_unknown_sig (int sig, const char *sigstr)
{
if (sig < 0 || sig > NSIG)
{
fprintf (stderr, "%s: unknown signal: %s\n", prog_name, sigstr);
usage ();
exit (1);
}
}
static void
listsig (const char *in_sig)
{
int sig;
if (!in_sig)
for (sig = 1; sig < NSIG; sig++)
printf ("%s%c", strsigno (sig) + 3, (sig < NSIG - 1) ? ' ' : '\n');
else
{
sig = getsig (in_sig);
test_for_unknown_sig (sig, in_sig);
if (atoi (in_sig) == sig)
puts (strsigno (sig) + 3);
else
printf ("%d\n", sig);
}
}
static void __stdcall
forcekill (int pid, int sig, int wait)
{
external_pinfo *p = (external_pinfo *) cygwin_internal (CW_GETPINFO_FULL, pid);
if (!p)
return;
HANDLE h = OpenProcess (PROCESS_TERMINATE, FALSE, (DWORD) p->dwProcessId);
if (!h)
return;
if (!wait || WaitForSingleObject (h, 200) != WAIT_OBJECT_0)
TerminateProcess (h, sig << 8);
CloseHandle (h);
}
int
main (int argc, char **argv)
{
int sig = SIGTERM;
int force = 0;
char *gotsig = NULL;
int ret = 0;
prog_name = strrchr (argv[0], '/');
if (prog_name == NULL)
prog_name = strrchr (argv[0], '\\');
if (prog_name == NULL)
prog_name = argv[0];
else
prog_name++;
if (argc == 1)
usage ();
opterr = 0;
for (;;)
{
int ch;
char **av = argv + optind;
if ((ch = getopt_long (argc, argv, opts, longopts, NULL)) == EOF)
break;
switch (ch)
{
case 's':
gotsig = optarg;
sig = getsig (gotsig);
break;
case 'l':
if (!optarg)
{
optarg = argv[optind];
if (optarg)
{
optind++;
optreset = 1;
}
}
if (argv[optind])
usage ();
listsig (optarg);
break;
case 'f':
force = 1;
break;
case 'h':
usage (stdout);
break;
case 'v':
print_version ();
break;
case '?':
if (gotsig)
usage ();
optreset = 1;
optind = 1 + av - argv;
gotsig = *av + 1;
sig = getsig (gotsig);
break;
default:
usage ();
break;
}
}
test_for_unknown_sig (sig, gotsig);
argv += optind;
while (*argv != NULL)
{
char *p;
int pid = strtol (*argv, &p, 10);
if (*p != '\0')
{
fprintf (stderr, "%s: illegal pid: %s\n", prog_name, *argv);
ret = 1;
}
else if (kill (pid, sig) == 0)
{
if (force)
forcekill (pid, sig, 1);
}
else if (force && sig != 0)
forcekill (pid, sig, 0);
else
{
char buf[1000];
sprintf (buf, "%s %d", prog_name, pid);
perror (buf);
ret = 1;
}
argv++;
}
return ret;
}
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