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