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Annotation of 43BSDReno/bin/kill/kill.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1988 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #ifndef lint
                     21: char copyright[] =
                     22: "@(#) Copyright (c) 1988 Regents of the University of California.\n\
                     23:  All rights reserved.\n";
                     24: #endif /* not lint */
                     25: 
                     26: #ifndef lint
                     27: static char sccsid[] = "@(#)kill.c     4.6 (Berkeley) 5/31/90";
                     28: #endif /* not lint */
                     29: 
                     30: #include <signal.h>
                     31: #include <stdio.h>
                     32: #include <ctype.h>
                     33: 
                     34: static char *signals[] = {
                     35:        "hup", "int", "quit", "ill", "trap", "iot",             /*  1 - 6  */
                     36:        "emt", "fpe", "kill", "bus", "segv", "sys",             /*  7 - 12 */
                     37:        "pipe", "alrm",  "term", "urg", "stop", "tstp",         /* 13 - 18 */
                     38:        "cont", "chld", "ttin", "ttou", "io", "xcpu",           /* 19 - 24 */
                     39:        "xfsz", "vtalrm", "prof", "winch", "29", "usr1",        /* 25 - 30 */
                     40:        "usr2", NULL,                                           /* 31 - 32 */
                     41:        };
                     42: 
                     43: main(argc, argv)
                     44:        int argc;
                     45:        char **argv;
                     46: {
                     47:        register int numsig;
                     48:        register char **p;
                     49:        int errors;
                     50: 
                     51:        if (argc < 2)
                     52:                usage();
                     53: 
                     54:        if (!strcmp(*++argv, "-l")) {
                     55:                printsig();
                     56:                exit(0);
                     57:        }
                     58: 
                     59:        numsig = SIGTERM;
                     60:        if (**argv == '-') {
                     61:                ++*argv;
                     62:                if (isalpha(**argv)) {
                     63:                        if (!strncasecmp(*argv, "sig", 3))
                     64:                                *argv += 3;
                     65:                        for (p = signals;; ++p) {
                     66:                                if (!*p)
                     67:                                        goto error;
                     68:                                if (!strcasecmp(*p, *argv)) {
                     69:                                        numsig = p - signals + 1;
                     70:                                        break;
                     71:                                }
                     72:                        }
                     73:                }
                     74:                else if (isdigit(**argv)) {
                     75:                        numsig = atoi(*argv);
                     76:                        if (numsig <= 0 || numsig > NSIG)
                     77:                                goto error;
                     78:                }
                     79:                else {
                     80: error:                 printf("kill: unknown signal %s; valid signals:\n", *argv);
                     81:                        printsig();
                     82:                        exit(1);
                     83:                }
                     84:                ++argv;
                     85:        }
                     86: 
                     87:        if (!*argv)
                     88:                usage();
                     89: 
                     90:        for (errors = 0; *argv; ++argv) {
                     91:                if (!isdigit(**argv))
                     92:                        usage();
                     93:                if (kill(atoi(*argv), numsig) == -1) {
                     94:                        perror(*argv);
                     95:                        errors = 1;
                     96:                }
                     97:        }
                     98:        exit(errors);
                     99: }
                    100: 
                    101: static
                    102: printsig()
                    103: {
                    104:        register char **p;
                    105: 
                    106:        for (p = signals; *p; ++p) {
                    107:                printf("%s ", *p);
                    108:                if ((p - signals) == NSIG / 2 - 1)
                    109:                        printf("\n");
                    110:        }
                    111:        printf("\n");
                    112: }
                    113: 
                    114: static
                    115: usage()
                    116: {
                    117:        printf("usage: kill [-l] [-sig] pid ...\n");
                    118:        exit(2);
                    119: }

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