1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2003 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_0.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include "php_getopt.h"
#define OPTERRCOLON (1)
#define OPTERRNF (2)
#define OPTERRARG (3)
static int php_opt_error(int argc, char * const *argv, int oint, int optchr, int err, int show_err)
{
if (show_err)
{
fprintf(stderr, "Error in argument %d, char %d: ", oint, optchr+1);
switch(err)
{
case OPTERRCOLON:
fprintf(stderr, ": in flags\n");
break;
case OPTERRNF:
fprintf(stderr, "option not found %c\n", argv[oint][optchr]);
break;
case OPTERRARG:
fprintf(stderr, "no argument for option %c\n", argv[oint][optchr]);
break;
default:
fprintf(stderr, "unknown\n");
break;
}
}
return('?');
}
int php_getopt(int argc, char* const *argv, const opt_struct opts[], char **optarg, int *optind, int show_err)
{
static int optchr = 0;
static int dash = 0; /* have already seen the - */
int arg_start = 2;
int opts_idx = -1;
if (*optind >= argc) {
return(EOF);
}
if (!dash) {
if ((argv[*optind][0] != '-')) {
return(EOF);
} else {
if (!argv[*optind][1])
{
/*
* use to specify stdin. Need to let pgm process this and
* the following args
*/
return(EOF);
}
}
}
if ((argv[*optind][0] == '-') && (argv[*optind][1] == '-')) {
/* '--' indicates end of args if not followed by a known long option name */
while (1) {
opts_idx++;
if (opts[opts_idx].opt_char == '-') {
(*optind)++;
return(EOF);
} else if (opts[opts_idx].opt_name && !strcmp(&argv[*optind][2], opts[opts_idx].opt_name)) {
break;
}
}
optchr = 0;
dash = 1;
arg_start = 2 + strlen(opts[opts_idx].opt_name);
}
if (!dash) {
dash = 1;
optchr = 1;
}
/* Check if the guy tries to do a -: kind of flag */
if (argv[*optind][optchr] == ':') {
dash = 0;
(*optind)++;
return (php_opt_error(argc, argv, *optind-1, optchr, OPTERRCOLON, show_err));
}
if (opts_idx < 0) {
while (1) {
opts_idx++;
if (opts[opts_idx].opt_char == '-') {
int errind = *optind;
int errchr = optchr;
if (!argv[*optind][optchr+1]) {
dash = 0;
(*optind)++;
} else {
optchr++;
}
return(php_opt_error(argc, argv, errind, errchr, OPTERRNF, show_err));
} else if (argv[*optind][optchr] == opts[opts_idx].opt_char) {
break;
}
}
}
if (opts[opts_idx].need_param) {
/* Check for cases where the value of the argument
is in the form -<arg> <val> or in the form -<arg><val> */
dash = 0;
if(!argv[*optind][arg_start]) {
(*optind)++;
if (*optind == argc) {
return(php_opt_error(argc, argv, *optind-1, optchr, OPTERRARG, show_err));
}
*optarg = argv[(*optind)++];
} else {
*optarg = &argv[*optind][arg_start];
(*optind)++;
}
return opts[opts_idx].opt_char;
} else {
if (arg_start == 2) {
if (!argv[*optind][optchr+1])
{
dash = 0;
(*optind)++;
} else {
optchr++;
}
} else {
(*optind)++;
}
return opts[opts_idx].opt_char;
}
assert(0);
return(0); /* never reached */
}
|
