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Viewing changes to sapi/cgi/getopt.c

  • Committer: Bazaar Package Importer
  • Author(s): Adam Conrad
  • Date: 2005-10-09 03:14:32 UTC
  • Revision ID: james.westby@ubuntu.com-20051009031432-kspik3lobxstafv9
Tags: upstream-5.0.5
Import upstream version 5.0.5

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sapi/cgi/getopt.c
 
1
/*
 
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   +----------------------------------------------------------------------+
 
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   | PHP Version 5                                                        |
 
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   +----------------------------------------------------------------------+
 
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   | Copyright (c) 1997-2004 The PHP Group                                |
 
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   +----------------------------------------------------------------------+
 
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   | This source file is subject to version 3.0 of the PHP license,       |
 
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   | that is bundled with this package in the file LICENSE, and is        |
 
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   | available through the world-wide-web at the following url:           |
 
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   | http://www.php.net/license/3_0.txt.                                  |
 
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   | If you did not receive a copy of the PHP license and are unable to   |
 
12
   | obtain it through the world-wide-web, please send a note to          |
 
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   | license@php.net so we can mail you a copy immediately.               |
 
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   +----------------------------------------------------------------------+
 
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   | Author: Marcus Boerger <helly@php.net>                               |
 
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   +----------------------------------------------------------------------+
 
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*/
 
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#include <stdio.h>
 
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#include <string.h>
 
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#include <assert.h>
 
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#include <stdlib.h>
 
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#include "php_getopt.h"
 
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#define OPTERRCOLON (1)
 
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#define OPTERRNF (2)
 
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#define OPTERRARG (3)
 
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static int php_opt_error(int argc, char * const *argv, int oint, int optchr, int err, int show_err)
 
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{
 
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        if (show_err)
 
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        {
 
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                fprintf(stderr, "Error in argument %d, char %d: ", oint, optchr+1);
 
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                switch(err)
 
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                {
 
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                case OPTERRCOLON:
 
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                        fprintf(stderr, ": in flags\n");
 
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                        break;
 
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                case OPTERRNF:
 
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                        fprintf(stderr, "option not found %c\n", argv[oint][optchr]);
 
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                        break;
 
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                case OPTERRARG:
 
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                        fprintf(stderr, "no argument for option %c\n", argv[oint][optchr]);
 
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                        break;
 
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                default:
 
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                        fprintf(stderr, "unknown\n");
 
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                        break;
 
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                }
 
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        }
 
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        return('?');
 
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}
 
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int php_getopt(int argc, char* const *argv, const opt_struct opts[], char **optarg, int *optind, int show_err)
 
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{
 
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        static int optchr = 0;
 
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        static int dash = 0; /* have already seen the - */
 
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        int arg_start = 2;
 
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        int opts_idx = -1;
 
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        if (*optind >= argc) {
 
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                return(EOF);
 
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        }
 
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        if (!dash) {
 
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                if ((argv[*optind][0] !=  '-')) {
 
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                        return(EOF);
 
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                } else {
 
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                        if (!argv[*optind][1])
 
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                        {
 
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                                /*
 
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                                * use to specify stdin. Need to let pgm process this and
 
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                                * the following args
 
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                                */
 
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                                return(EOF);
 
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                        }
 
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                }
 
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        }
 
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        if ((argv[*optind][0] == '-') && (argv[*optind][1] == '-')) {
 
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                /* '--' indicates end of args if not followed by a known long option name */
 
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                while (1) {
 
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                        opts_idx++;
 
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                        if (opts[opts_idx].opt_char == '-') {
 
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                                (*optind)++;
 
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                                return(EOF);
 
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                        } else if (opts[opts_idx].opt_name && !strcmp(&argv[*optind][2], opts[opts_idx].opt_name)) {
 
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                                break;
 
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                        }
 
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                }
 
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                optchr = 0;
 
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                dash = 1;
 
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                arg_start = 2 + strlen(opts[opts_idx].opt_name);
 
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        }
 
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        if (!dash) {
 
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                dash = 1;
 
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                optchr = 1;
 
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        }
 
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        /* Check if the guy tries to do a -: kind of flag */
 
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        if (argv[*optind][optchr] == ':') {
 
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                dash = 0;
 
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                (*optind)++;
 
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                return (php_opt_error(argc, argv, *optind-1, optchr, OPTERRCOLON, show_err));
 
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        }
 
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        if (opts_idx < 0) {
 
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                while (1) {
 
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                        opts_idx++;
 
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                        if (opts[opts_idx].opt_char == '-') {
 
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                                int errind = *optind;
 
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                                int errchr = optchr;
 
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                                if (!argv[*optind][optchr+1]) {
 
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                                        dash = 0;
 
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                                        (*optind)++;
 
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                                } else {
 
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                                        optchr++;
 
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                                }
 
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                                return(php_opt_error(argc, argv, errind, errchr, OPTERRNF, show_err));
 
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                        } else if (argv[*optind][optchr] == opts[opts_idx].opt_char) {
 
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                                break;
 
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                        }
 
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                }
 
122
        }
 
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        if (opts[opts_idx].need_param) {
 
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                /* Check for cases where the value of the argument
 
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                is in the form -<arg> <val> or in the form -<arg><val> */
 
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                dash = 0;
 
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                if(!argv[*optind][arg_start]) {
 
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                        (*optind)++;
 
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                        if (*optind == argc) {
 
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                                return(php_opt_error(argc, argv, *optind-1, optchr, OPTERRARG, show_err));
 
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                        }
 
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                        *optarg = argv[(*optind)++];
 
133
                } else {
 
134
                        *optarg = &argv[*optind][arg_start];
 
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                        (*optind)++;
 
136
                }
 
137
                return opts[opts_idx].opt_char;
 
138
        } else {
 
139
                if (arg_start == 2) {
 
140
                        if (!argv[*optind][optchr+1])
 
141
                        {
 
142
                                dash = 0;
 
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                                (*optind)++;
 
144
                        } else {
 
145
                                optchr++;
 
146
                        }
 
147
                } else {
 
148
                        (*optind)++;
 
149
                }
 
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                return opts[opts_idx].opt_char;
 
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        }
 
152
        assert(0);
 
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        return(0);      /* never reached */
 
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}