1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 2000 Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30
31 /* from OpenSolaris "getopt.c 1.10 05/06/08 SMI" SVr4.0 1.7 */
32
33 /*
34 * Portions Copyright (c) 2005 Gunnar Ritter, Freiburg i. Br., Germany
35 */
36 #if __GNUC__ >= 3 && __GNUC_MINOR__ >= 4 || __GNUC__ >= 4
37 #define USED __attribute__ ((used))
38 #elif defined __GNUC__
39 #define USED __attribute__ ((unused))
40 #else
41 #define USED
42 #endif
43 static const char sccsid[] USED = "@(#)getopt.c 1.4 (gritter) 7/1/05";
44
45 #include <stdio.h>
46 #include <locale.h>
47 #include <stdlib.h>
48 #include <string.h>
49 #include <unistd.h>
50 #include <libgen.h>
51
52 #define BLOCKLEN 5120
53
54 /* incr doesn't include a null termination */
55 #define ALLOC_BUFMEM(buf, size, incr) \
56 { \
57 size_t len = strlen(buf); \
58 if ((len + incr) >= size) { \
59 size = len + incr + 1; \
60 if ((buf = realloc(buf, size)) == NULL) { \
61 fprintf(stderr, "%s: Out of memory\n", \
62 progname); \
63 exit(2); \
64 } \
65 } \
66 }
67
68 static const char *progname;
69
70 int
main(int argc,char ** argv)71 main(int argc, char **argv)
72 {
73 int c;
74 int errflg = 0;
75 char tmpstr[4];
76 char *outstr;
77 char *goarg;
78 size_t bufsize;
79
80 progname = basename(argv[0]);
81 if (argc < 2) {
82 fprintf(stderr, "usage: %s legal-args $*\n", progname);
83 exit(2);
84 }
85
86 goarg = argv[1];
87 argv[1] = argv[0];
88 argv++;
89 argc--;
90
91 bufsize = BLOCKLEN;
92 if ((outstr = malloc(bufsize)) == NULL) {
93 fprintf(stderr, "%s: Out of memory\n", progname);
94 exit(2);
95 }
96 outstr[0] = '\0';
97
98 while ((c = getopt(argc, argv, goarg)) != EOF) {
99 if (c == '?') {
100 errflg++;
101 continue;
102 }
103
104 tmpstr[0] = '-';
105 tmpstr[1] = (char)c;
106 tmpstr[2] = ' ';
107 tmpstr[3] = '\0';
108
109 /* If the buffer is full, expand it as appropriate */
110 ALLOC_BUFMEM(outstr, bufsize, 3);
111
112 strcat(outstr, tmpstr);
113
114 if (*(strchr(goarg, c)+1) == ':') {
115 ALLOC_BUFMEM(outstr, bufsize, strlen(optarg)+1)
116 strcat(outstr, optarg);
117 strcat(outstr, " ");
118 }
119 }
120
121 if (errflg) {
122 exit(2);
123 }
124
125 ALLOC_BUFMEM(outstr, bufsize, 3)
126 strcat(outstr, "-- ");
127 while (optind < argc) {
128 ALLOC_BUFMEM(outstr, bufsize, strlen(argv[optind])+1)
129 strcat(outstr, argv[optind++]);
130 strcat(outstr, " ");
131 }
132
133 printf("%s\n", outstr);
134 return 0;
135 }
136