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