Return to getopt.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / sys / nfs / TEST / unix-tests

Annotation of 43BSDReno/sys/nfs/TEST/unix-tests/getopt.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char NFSTestID[] = "@(#)getopt.c        1.1 Lachman ONC Test Suite source";
        !             3: #endif /* lint */
        !             4: /*
        !             5:  * Here's something you've all been waiting for:  the AT&T public domain
        !             6:  * source for getopt(3).  It is the code which was given out at the 1985
        !             7:  * UNIFORUM conference in Dallas.  I obtained it by electronic mail
        !             8:  * directly from AT&T.  The people there assure me that it is indeed
        !             9:  * in the public domain.
        !            10:  * 
        !            11:  * There is no manual page.  That is because the one they gave out at
        !            12:  * UNIFORUM was slightly different from the current System V Release 2
        !            13:  * manual page.  The difference apparently involved a note about the
        !            14:  * famous rules 5 and 6, recommending using white space between an option
        !            15:  * and its first argument, and not grouping options that have arguments.
        !            16:  * Getopt itself is currently lenient about both of these things White
        !            17:  * space is allowed, but not mandatory, and the last option in a group can
        !            18:  * have an argument.  That particular version of the man page evidently
        !            19:  * has no official existence, and my source at AT&T did not send a copy.
        !            20:  * The current SVR2 man page reflects the actual behavor of this getopt.
        !            21:  * However, I am not about to post a copy of anything licensed by AT&T.
        !            22:  */
        !            23: 
        !            24: 
        !            25: /*LINTLIBRARY*/
        !            26: #define NULL   0
        !            27: #define EOF    (-1)
        !            28: #define ERR(s, c)      if(opterr){\
        !            29:        extern int write();\
        !            30:        char errbuf[2];\
        !            31:        errbuf[0] = c; errbuf[1] = '\n';\
        !            32:        (void) write(2, argv[0], (unsigned)strlen(argv[0]));\
        !            33:        (void) write(2, s, (unsigned)strlen(s));\
        !            34:        (void) write(2, errbuf, 2);}
        !            35: 
        !            36: #ifdef SVR3
        !            37: extern char *strchr();
        !            38: #else
        !            39: extern char *index();
        !            40: #endif
        !            41: 
        !            42: int    opterr = 1;
        !            43: int    optind = 1;
        !            44: int    optopt;
        !            45: char   *optarg;
        !            46: 
        !            47: int
        !            48: getopt(argc, argv, opts)
        !            49: int    argc;
        !            50: char   **argv, *opts;
        !            51: {
        !            52:        static int sp = 1;
        !            53:        register int c;
        !            54:        register char *cp;
        !            55: 
        !            56:        if(sp == 1)
        !            57:                if(optind >= argc ||
        !            58:                   argv[optind][0] != '-' || argv[optind][1] == '\0')
        !            59:                        return(EOF);
        !            60:                else if(strcmp(argv[optind], "--") == NULL) {
        !            61:                        optind++;
        !            62:                        return(EOF);
        !            63:                }
        !            64:        optopt = c = argv[optind][sp];
        !            65: #ifdef SVR3
        !            66:        if(c == ':' || (cp=strchr(opts, c)) == NULL) {
        !            67: #else
        !            68:        if(c == ':' || (cp=index(opts, c)) == NULL) {
        !            69: #endif
        !            70:                ERR(": illegal option -- ", c);
        !            71:                if(argv[optind][++sp] == '\0') {
        !            72:                        optind++;
        !            73:                        sp = 1;
        !            74:                }
        !            75:                return('?');
        !            76:        }
        !            77:        if(*++cp == ':') {
        !            78:                if(argv[optind][sp+1] != '\0')
        !            79:                        optarg = &argv[optind++][sp+1];
        !            80:                else if(++optind >= argc) {
        !            81:                        ERR(": option requires an argument -- ", c);
        !            82:                        sp = 1;
        !            83:                        return('?');
        !            84:                } else
        !            85:                        optarg = argv[optind++];
        !            86:                sp = 1;
        !            87:        } else {
        !            88:                if(argv[optind][++sp] == '\0') {
        !            89:                        sp = 1;
        !            90:                        optind++;
        !            91:                }
        !            92:                optarg = NULL;
        !            93:        }
        !            94:        return(c);
        !            95: }
        !            96: 
        !            97: #include       <stdio.h>
        !            98: 
        !            99: main(ac, av)
        !           100: char   **av;
        !           101: {
        !           102:        register int    i;
        !           103:        int     first = 1;
        !           104:        int     error = 0;
        !           105:        char    buf[BUFSIZ];
        !           106:        char    line[BUFSIZ];
        !           107:        extern char     *optarg;
        !           108:        extern int      optind;
        !           109: 
        !           110:        if (ac == 1) {
        !           111:                fprintf(stderr, "usage:  getopt legal-args $*\n");
        !           112:                exit(2);
        !           113:        }
        !           114: 
        !           115:        line[0] = '\0';
        !           116:        while ((i = getopt(ac - 1, &av[1], av[1])) != EOF) {
        !           117:                if (i == '?')
        !           118:                        exit(2);
        !           119: 
        !           120:                if (first) {
        !           121:                        first = 0;
        !           122:                        sprintf(buf, "-%c", i & 0xff);
        !           123:                }
        !           124:                else
        !           125:                        sprintf(buf, " -%c", i & 0xff);
        !           126:                strcat(line, buf);
        !           127:                if (optarg) {
        !           128:                        sprintf(buf, " %s", optarg);
        !           129:                        strcat(line, buf);
        !           130:                }
        !           131:        }
        !           132: 
        !           133:        if (first)
        !           134:                strcat(line, "--");
        !           135:        else
        !           136:                strcat(line, " --");
        !           137: 
        !           138:        optind++;
        !           139:        for (; optind < ac; optind++) {
        !           140:                sprintf(buf, " %s", av[optind]);
        !           141:                strcat(line, buf);
        !           142:        }
        !           143:        printf("%s\n", line);
        !           144:        exit(0);
        !           145: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.