1 /*
2 * Copyright (c) 1999-2009 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7 * Reserved. This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 1.0 (the 'License'). You may not use this file
10 * except in compliance with the License. Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19 * License for the specific language governing rights and limitations
20 * under the License."
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24 /*
25 * Mach Operating System
26 * Copyright (c) 1990 Carnegie-Mellon University
27 * Copyright (c) 1989 Carnegie-Mellon University
28 * Copyright (c) 1988 Carnegie-Mellon University
29 * Copyright (c) 1987 Carnegie-Mellon University
30 * All rights reserved. The CMU software License Agreement specifies
31 * the terms and conditions for use and redistribution.
32 */
33
34 /*
35 * Copyright (c) 1980 Regents of the University of California.
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms are permitted
39 * provided that the above copyright notice and this paragraph are
40 * duplicated in all such forms and that any documentation,
41 * advertising materials, and other materials related to such
42 * distribution and use acknowledge that the software was developed
43 * by the University of California, Berkeley. The name of the
44 * University may not be used to endorse or promote products derived
45 * from this software without specific prior written permission.
46 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
47 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
48 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
49 */
50
51 #ifndef lint
52 char copyright[] =
53 "@(#) Copyright (c) 1980 Regents of the University of California.\n\
54 All rights reserved.\n";
55 #endif /* not lint */
56
57 #ifndef lint
58 static char sccsid[] __attribute__((used)) = "@(#)main.c 5.9 (Berkeley) 6/18/88";
59 #endif /* not lint */
60
61 #include <stdio.h>
62 #include <ctype.h>
63 #include "parser.h"
64 #include "config.h"
65
66 /*
67 * Config builds a set of files for building a UNIX
68 * system given a description of the desired system.
69 */
70 int
main(int argc,char * argv[])71 main(int argc, char *argv[])
72 {
73 source_directory = ".."; /* default */
74 object_directory = "..";
75 config_directory = (char *) 0;
76 while ((argc > 1) && (argv[1][0] == '-')) {
77 char *c;
78
79 argv++; argc--;
80 for (c = &argv[0][1]; *c; c++) {
81 switch (*c) {
82 case 'b':
83 build_directory = argv[1];
84 goto check_arg;
85
86 case 'd':
87 source_directory = argv[1];
88 goto check_arg;
89
90 case 'o':
91 object_directory = argv[1];
92 goto check_arg;
93
94 case 'c':
95 config_directory = argv[1];
96
97 check_arg:
98 if (argv[1] == (char *) 0) {
99 goto usage_error;
100 }
101 argv++; argc--;
102 break;
103
104 case 'p':
105 profiling++;
106 break;
107 default:
108 goto usage_error;
109 }
110 }
111 }
112 if (config_directory == (char *) 0) {
113 config_directory =
114 malloc((unsigned) strlen(source_directory) + 6);
115 (void) sprintf(config_directory, "%s/conf", source_directory);
116 }
117 if (argc != 2) {
118 usage_error: ;
119 fprintf(stderr, "usage: config [ -bcdo dir ] [ -p ] sysname\n");
120 exit(1);
121 }
122 if (!build_directory) {
123 build_directory = argv[1];
124 }
125 if (freopen(argv[1], "r", stdin) == NULL) {
126 perror(argv[1]);
127 exit(2);
128 }
129 dtab = NULL;
130 confp = &conf_list;
131 opt = 0;
132 if (yyparse()) {
133 exit(3);
134 }
135
136 mkioconf(); /* ioconf.c */
137 makefile(); /* build Makefile */
138 headers(); /* make a lot of .h files */
139
140 return 0;
141 }
142
143 /*
144 * get_word
145 * returns EOF on end of file
146 * NULL on end of line
147 * pointer to the word otherwise
148 */
149 const char *
get_word(FILE * fp)150 get_word(FILE *fp)
151 {
152 static char line[80];
153 int ch;
154 char *cp;
155
156 while ((ch = getc(fp)) != EOF) {
157 if (ch != ' ' && ch != '\t') {
158 break;
159 }
160 }
161 if (ch == EOF) {
162 return (char *)EOF;
163 }
164 if (ch == '\n') {
165 return NULL;
166 }
167 if (ch == '|') {
168 return "|";
169 }
170 cp = line;
171 *cp++ = ch;
172 while ((ch = getc(fp)) != EOF) {
173 if (isspace(ch)) {
174 break;
175 }
176 *cp++ = ch;
177 }
178 *cp = 0;
179 if (ch == EOF) {
180 return (char *)EOF;
181 }
182 (void) ungetc(ch, fp);
183 return line;
184 }
185
186 /*
187 * get_rest
188 * returns EOF on end of file
189 * NULL on end of line
190 * pointer to the word otherwise
191 */
192 char *
get_rest(FILE * fp)193 get_rest(FILE *fp)
194 {
195 static char line[80];
196 int ch;
197 char *cp;
198
199 cp = line;
200 while ((ch = getc(fp)) != EOF) {
201 if (ch == '\n') {
202 break;
203 }
204 *cp++ = ch;
205 }
206 *cp = 0;
207 if (ch == EOF) {
208 return (char *)EOF;
209 }
210 return line;
211 }
212
213 /*
214 * prepend the path to a filename
215 */
216 char *
path(const char * file)217 path(const char *file)
218 {
219 char *cp;
220
221 cp = malloc((unsigned)(strlen(build_directory) +
222 strlen(file) +
223 strlen(object_directory) +
224 3));
225 (void) sprintf(cp, "%s/%s/%s", object_directory, build_directory, file);
226 return cp;
227 }
228