--- /dev/null
+// $Id$ --*- c -*--
+
+// Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+#include "compat.h"
+
+#include "vserver.h"
+#include "linuxvirtual.h"
+
+#include <getopt.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sys/wait.h>
+
+#define VERSION_COPYRIGHT_DISCLAIMER
+
+#define CMD_HELP 0x8000
+#define CMD_VERSION 0x8001
+
+#define WRITE_MSG(FD,X) (void)(write(FD,X,sizeof(X)-1))
+#define WRITE_STR(FD,X) writeStr(FD,X)
+
+static struct option const
+CMDLINE_OPTIONS[] = {
+ { "help", no_argument, 0, CMD_HELP },
+ { "version", no_argument, 0, CMD_VERSION },
+ { 0,0,0,0 }
+};
+
+struct Arguments
+{
+ ctx_t ctx;
+ int sig;
+};
+
+static char const * const SIGNALS[] = {
+ // 0 1 2 3 4 5 6 7
+ "UNUSED", "HUP", "INT", "QUIT", "ILL", "TRAP", "ABRT", "UNUSED",
+ "FPE", "KILL", "USR1", "SEGV", "USR2", "PIPE", "ALRM", "TERM",
+ "STKFLT", "CHLD", "CONT", "STOP", "TSTP", "TTIN", "TTOU", "IO",
+ "XCPU", "XFSZ", "VTALRM", "PROF", "WINCH",
+ 0,
+};
+
+inline static void UNUSED
+writeStr(int fd, char const *cmd)
+{
+ (void)write(fd, cmd, strlen(cmd));
+}
+
+static void
+showHelp(int fd, char const *cmd, int res)
+{
+ WRITE_MSG(fd, "Usage: ");
+ WRITE_STR(fd, cmd);
+ WRITE_MSG(fd,
+ " [-c <ctx>] [-s <signal>] [--] [<pid>]+\n"
+ "Please report bugs to " PACKAGE_BUGREPORT "\n");
+ exit(res);
+}
+
+static void
+showVersion()
+{
+ WRITE_MSG(1,
+ "vkill " VERSION " -- sends signals to processes within other contexts\n"
+ "This program is part of " PACKAGE_STRING "\n\n"
+ "Copyright (C) 2003 Enrico Scholz\n"
+ VERSION_COPYRIGHT_DISCLAIMER);
+ exit(0);
+}
+
+static int
+str2sig(char const *str)
+{
+ char *errptr;
+ int res = strtol(str, &errptr, 10);
+
+ if (*errptr!='\0') res=-1;
+ if (res==-1 && strncmp(str,"SIG",3)==0) str+=3;
+ if (res==-1) {
+ char const * const *ptr = SIGNALS;
+ for (;*ptr!=0; ++ptr) {
+ if (strcmp(*ptr,str)!=0) continue;
+ res = ptr-SIGNALS;
+ break;
+ }
+ }
+
+ return res;
+}
+
+static int
+kill_wrapper_legacy(ctx_t ctx, char const *proc, int sig)
+{
+ pid_t pid = fork();
+ if (pid==-1) {
+ perror("fork()");
+ exit(1);
+ }
+ else if (pid==0) {
+ int status;
+ int res;
+ while ((res=wait4(pid, &status, 0,0))==-1 &&
+ (errno==EAGAIN || errno==EINTR)) {}
+
+ return (res==0 && WIFEXITED(status) && WEXITSTATUS(status)) ? 0 : 1;
+ }
+
+ execl(LEGACYDIR "/vkill", "legacy/vkill", proc, (void *)(0));
+ perror("execl()");
+ exit(1);
+}
+
+static int
+kill_wrapper(ctx_t ctx, char const *pid, int sig)
+{
+ //printf("kill_wrapper(%u, %s, %i)\n", ctx, pid, sig);
+ if (vc_ctx_kill(ctx,atoi(pid),sig)==-1) {
+ int err = errno;
+ if (vc_get_version(VC_CAT_COMPAT)==-1)
+ return kill_wrapper_legacy(ctx, pid, sig);
+ else {
+ errno = err;
+ perror("vc_ctx_kill()");
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ int fail = 0;
+ struct Arguments args = {
+ .ctx = VC_NOCTX,
+ .sig = SIGTERM,
+ };
+
+ while (1) {
+ int c = getopt_long(argc, argv, "c:s:", CMDLINE_OPTIONS, 0);
+ if (c==-1) break;
+
+ switch (c) {
+ case CMD_HELP : showHelp(1, argv[0], 0);
+ case CMD_VERSION : showVersion();
+ case 'c' : args.ctx = atoi(optarg); break;
+ case 's' : args.sig = str2sig(optarg); break;
+ default :
+ WRITE_MSG(2, "Try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help\" for more information.\n");
+ return EXIT_FAILURE;
+ break;
+ }
+ }
+
+ if (args.sig==-1) {
+ WRITE_MSG(2, "Invalid signal specified\n");
+ return EXIT_FAILURE;
+ }
+
+ if (args.ctx==VC_NOCTX && optind==argc) {
+ WRITE_MSG(2, "No pid specified\n");
+ return EXIT_FAILURE;
+ }
+
+ if (optind==argc)
+ fail += kill_wrapper(args.ctx, "0", args.sig);
+ else for (;optind<argc;++optind)
+ fail += kill_wrapper(args.ctx, argv[optind], args.sig);
+
+ return fail==0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+#ifdef TESTSUITE
+void
+vkill_test()
+{
+ assert(str2sig("0") ==0 );
+ assert(str2sig("1") ==1 );
+ assert(str2sig("10")==10);
+ assert(str2sig("SIGHUP")==1);
+ assert(str2sig("HUP") ==1);
+ assert(str2sig("SIGCHLD")==17);
+ assert(str2sig("CHLD") ==17);
+ assert(str2sig("x")==-1);
+ assert(str2sig("1 0")==-1);
+
+ return 0;
+}
+#endif