386BSD 0.1 development

Work on file usr/src/bin/kill/kill.c

Co-Authored-By: Lynne Greer Jolitz <ljolitz@cardio.ucsf.edu>
Synthesized-from: 386BSD-0.1

diff --git a/usr/src/bin/kill/kill.c b/usr/src/bin/kill/kill.c
new file mode 100644 (file)
index 0000000..9aa50d7
--- /dev/null
+++ b/usr/src/bin/kill/kill.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1988 Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)kill.c     5.3 (Berkeley) 7/1/91";
+#endif /* not lint */
+
+#include <signal.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+static char *signals[] = {
+       "hup", "int", "quit", "ill", "trap", "iot",             /*  1 - 6  */
+       "emt", "fpe", "kill", "bus", "segv", "sys",             /*  7 - 12 */
+       "pipe", "alrm",  "term", "urg", "stop", "tstp",         /* 13 - 18 */
+       "cont", "chld", "ttin", "ttou", "io", "xcpu",           /* 19 - 24 */
+       "xfsz", "vtalrm", "prof", "winch", "info", "usr1",      /* 25 - 30 */
+       "usr2", NULL,                                           /* 31 - 32 */
+};
+
+main(argc, argv)
+       int argc;
+       char **argv;
+{
+       register int errors, numsig, pid;
+       register char **p;
+       char *ep;
+
+       if (argc < 2)
+               usage();
+
+       if (!strcmp(*++argv, "-l")) {
+               printsig(stdout);
+               exit(0);
+       }
+
+       numsig = SIGTERM;
+       if (**argv == '-') {
+               ++*argv;
+               if (isalpha(**argv)) {
+                       if (!strncasecmp(*argv, "sig", 3))
+                               *argv += 3;
+                       for (p = signals;; ++p) {
+                               if (!*p)
+                                       nosig(*argv);
+                               if (!strcasecmp(*p, *argv)) {
+                                       numsig = p - signals + 1;
+                                       break;
+                               }
+                       }
+               } else if (isdigit(**argv)) {
+                       numsig = strtol(*argv, &ep, 10);
+                       if (!*argv || *ep) {
+                               (void)fprintf(stderr,
+                                   "kill: illegal signal number %s\n", *argv);
+                               exit(1);
+                       }
+                       if (numsig <= 0 || numsig > NSIG)
+                               nosig(*argv);
+               } else
+                       nosig(*argv);
+               ++argv;
+       }
+
+       if (!*argv)
+               usage();
+
+       for (errors = 0; *argv; ++argv) {
+               pid = strtol(*argv, &ep, 10);
+               if (!*argv || *ep) {
+                       (void)fprintf(stderr,
+                           "kill: illegal process id %s\n", *argv);
+                       continue;
+               }
+               if (kill(pid, numsig) == -1) {
+                       (void)fprintf(stderr,
+                           "kill: %s: %s\n", *argv, strerror(errno));
+                       errors = 1;
+               }
+       }
+       exit(errors);
+}
+
+nosig(name)
+       char *name;
+{
+       (void)fprintf(stderr,
+           "kill: unknown signal %s; valid signals:\n", name);
+       printsig(stderr);
+       exit(1);
+}
+
+printsig(fp)
+       FILE *fp;
+{
+       register char **p;
+
+       for (p = signals; *p; ++p) {
+               (void)fprintf(fp, "%s ", *p);
+               if ((p - signals) == NSIG / 2 - 1)
+                       (void)fprintf(fp, "\n");
+       }
+       (void)fprintf(fp, "\n");
+}
+
+usage()
+{
+       (void)fprintf(stderr, "usage: kill [-l] [-sig] pid ...\n");
+       exit(1);
+}