drm/i915: Fix hangs on some broadwell machines
[dragonfly.git] / contrib / amd / mk-amd-map / mk-amd-map.c
CommitLineData
984263bc
MD
1/*
2 * Copyright (c) 1997-1999 Erez Zadok
3 * Copyright (c) 1990 Jan-Simon Pendry
4 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgment:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * %W% (Berkeley) %G%
40 *
41 * $Id: mk-amd-map.c,v 1.4 1999/02/04 07:24:50 ezk Exp $
42 * $FreeBSD: src/contrib/amd/mk-amd-map/mk-amd-map.c,v 1.7 1999/09/15 05:45:16 obrien Exp $
1de703da 43 * $DragonFly: src/contrib/amd/mk-amd-map/mk-amd-map.c,v 1.2 2003/06/17 04:23:58 dillon Exp $
984263bc
MD
44 */
45
46/*
47 * Convert a file map into an ndbm map
48 */
49
50#ifdef HAVE_CONFIG_H
51# include <config.h>
52#endif /* HAVE_CONFIG_H */
53#include <am_defs.h>
54
55/* (libdb version 2) uses .db extensions but an old dbm API */
56/* check for libgdbm to distinguish it from linux systems */
57#if defined(DBM_SUFFIX) && !defined(HAVE_LIBGDBM)
58# define HAVE_DB_SUFFIX
59#endif /* not defined(DBM_SUFFIX) && !defined(HAVE_LIBGDBM) */
60
61#ifdef HAVE_MAP_NDBM
62
63static int
64store_data(voidp db, char *k, char *v)
65{
66 datum key, val;
67
68 key.dptr = k;
69 val.dptr = v;
70 key.dsize = strlen(k) + 1;
71 val.dsize = strlen(v) + 1;
72 return dbm_store((DBM *) db, key, val, DBM_INSERT);
73}
74
75
76/*
77 * Read one line from file.
78 */
79static int
80read_line(char *buf, int size, FILE *fp)
81{
82 int done = 0;
83
84 do {
85 while (fgets(buf, size, fp)) {
86 int len = strlen(buf);
87
88 done += len;
89 if (len > 1 && buf[len - 2] == '\\' && buf[len - 1] == '\n') {
90 int ch;
91 buf += len - 2;
92 size -= len - 2;
93 *buf = '\n';
94 buf[1] = '\0';
95
96 /*
97 * Skip leading white space on next line
98 */
99 while ((ch = getc(fp)) != EOF && isascii(ch) && isspace(ch)) ;
100 (void) ungetc(ch, fp);
101 } else {
102 return done;
103 }
104 }
105 } while (size > 0 && !feof(fp));
106
107 return done;
108}
109
110
111/*
112 * Read through a map.
113 */
114static int
115read_file(FILE *fp, char *map, voidp db)
116{
117 char key_val[2048];
118 int chuck = 0;
119 int line_no = 0;
120 int errs = 0;
121
122 while (read_line(key_val, 2048, fp)) {
123 char *kp;
124 char *cp;
125 char *hash;
126 int len = strlen(key_val);
127
128 line_no++;
129
130 /*
131 * Make sure we got the whole line
132 */
133 if (key_val[len - 1] != '\n') {
134 fprintf(stderr, "line %d in \"%s\" is too long", line_no, map);
135 chuck = 1;
136 } else {
137 key_val[len - 1] = '\0';
138 }
139
140 /*
141 * Strip comments
142 */
143 hash = strchr(key_val, '#');
144 if (hash)
145 *hash = '\0';
146
147 /*
148 * Find start of key
149 */
150 for (kp = key_val; *kp && isascii(*kp) && isspace((int)*kp); kp++) ;
151
152 /*
153 * Ignore blank lines
154 */
155 if (!*kp)
156 goto again;
157
158 /*
159 * Find end of key
160 */
161 for (cp = kp; *cp && (!isascii(*cp) || !isspace((int)*cp)); cp++) ;
162
163 /*
164 * Check whether key matches, or whether
165 * the entry is a wildcard entry.
166 */
167 if (*cp)
168 *cp++ = '\0';
169 while (*cp && isascii(*cp) && isspace((int)*cp))
170 cp++;
171 if (*kp == '+') {
172 fprintf(stderr, "Can't interpolate %s\n", kp);
173 errs++;
174 } else if (*cp) {
175 if (db) {
176 if (store_data(db, kp, cp) < 0) {
177 fprintf(stderr, "Could store %s -> %s\n", kp, cp);
178 errs++;
179 }
180 } else {
181 printf("%s\t%s\n", kp, cp);
182 }
183 } else {
184 fprintf(stderr, "%s: line %d has no value field", map, line_no);
185 errs++;
186 }
187
188 again:
189 /*
190 * If the last read didn't get a whole line then
191 * throw away the remainder before continuing...
192 */
193 if (chuck) {
194 while (fgets(key_val, sizeof(key_val), fp) &&
195 !strchr(key_val, '\n')) ;
196 chuck = 0;
197 }
198 }
199 return errs;
200}
201
202
203static int
204remove_file(char *f)
205{
206 if (unlink(f) < 0 && errno != ENOENT)
207 return -1;
208
209 return 0;
210}
211
212
213int
214main(int argc, char *argv[])
215{
216 FILE *mapf; /* the input file to read from */
217 int error;
218 char *mapsrc;
219 DBM *db = NULL;
220 static char maptmp[] = "dbmXXXXXX";
221#ifdef HAVE_DB_SUFFIX
222 char maptdb[16];
223 char *map_name_db = (char *) NULL;
224#else /* not HAVE_DB_SUFFIX */
225 char maptpag[16], maptdir[16];
226 char *map_name_pag = (char *) NULL, *map_name_dir = (char *) NULL;
227#endif /* not HAVE_DB_SUFFIX */
228 int len;
229 char *sl;
230 int printit = 0;
231 int usage = 0;
232 int ch;
233 extern int optind;
234
235 /* test options */
236 while ((ch = getopt(argc, argv, "p")) != -1)
237 switch (ch) {
238 case 'p':
239 printit = 1;
240 break;
241 default:
242 usage++;
243 break;
244 }
245
246 if (usage || optind != (argc - 1)) {
247 fputs("Usage: mk-amd-map [-p] file-map\n", stderr);
248 exit(1);
249 }
250 mapsrc = argv[optind];
251
252 /* test if can get to the map directory */
253 sl = strrchr(mapsrc, '/');
254 if (sl) {
255 *sl = '\0';
256 if (chdir(mapsrc) < 0) {
257 fputs("Can't chdir to ", stderr);
258 perror(mapsrc);
259 exit(1);
260 }
261 mapsrc = sl + 1;
262 }
263
264 /* open source file */
265 mapf = fopen(mapsrc, "r");
266 if (!mapf) {
267 fprintf(stderr, "cannot open source file ");
268 perror(mapsrc);
269 exit(1);
270 }
271
272#ifndef DEBUG
273 signal(SIGINT, SIG_IGN);
274#endif /* DEBUG */
275
276 if (!printit) {
277 len = strlen(mapsrc);
278#ifdef HAVE_DB_SUFFIX
279 map_name_db = (char *) malloc(len + 4);
280 error = (map_name_db == NULL);
281#else /* not HAVE_DB_SUFFIX */
282 map_name_pag = (char *) malloc(len + 5);
283 map_name_dir = (char *) malloc(len + 5);
284 error = (map_name_pag == NULL || map_name_dir == NULL);
285#endif /* not HAVE_DB_SUFFIX */
286 if (error) {
287 perror("mk-amd-map: malloc");
288 exit(1);
289 }
290
291 mktemp(maptmp);
292
293 /* remove existing temps (if any) */
294#ifdef HAVE_DB_SUFFIX
295 sprintf(maptdb, "%s.db", maptmp);
296 if (remove_file(maptdb) < 0) {
297 fprintf(stderr, "Can't remove existing temporary file; ");
298 perror(maptdb);
299 exit(1);
300 }
301#else /* not HAVE_DB_SUFFIX */
302 sprintf(maptpag, "%s.pag", maptmp);
303 sprintf(maptdir, "%s.dir", maptmp);
304 if (remove_file(maptpag) < 0 || remove_file(maptdir) < 0) {
305 fprintf(stderr, "Can't remove existing temporary files; %s and ", maptpag);
306 perror(maptdir);
307 exit(1);
308 }
309#endif /* not HAVE_DB_SUFFIX */
310
311 db = dbm_open(maptmp, O_RDWR|O_CREAT, 0444);
312 if (!db) {
313 fprintf(stderr, "cannot initialize temporary database: %s", maptmp);
314 exit(1);
315 }
316 }
317
318 /* print db to stdout or to temp database */
319 error = read_file(mapf, mapsrc, db);
320 fclose(mapf);
321 if (error) {
322 if (printit)
323 fprintf(stderr, "Error reading source file %s\n", mapsrc);
324 else
325 fprintf(stderr, "Error creating database map for %s\n", mapsrc);
326 exit(1);
327 }
328
329 if (printit)
330 exit(0); /* nothing more to do */
331
332 /* if gets here, we wrote to a database */
333
334 dbm_close(db);
335 /* all went well */
336
337#ifdef HAVE_DB_SUFFIX
338 sprintf(map_name_db, "%s.db", mapsrc);
339 if (rename(maptdb, map_name_db) < 0) {
340 fprintf(stderr, "Couldn't rename %s to ", maptdb);
341 perror(map_name_db);
342 /* Throw away the temporary map */
343 unlink(maptdb);
344 exit(1);
345 }
346#else /* not HAVE_DB_SUFFIX */
347 sprintf(map_name_pag, "%s.pag", mapsrc);
348 sprintf(map_name_dir, "%s.dir", mapsrc);
349 if (rename(maptpag, map_name_pag) < 0) {
350 fprintf(stderr, "Couldn't rename %s to ", maptpag);
351 perror(map_name_pag);
352 /* Throw away the temporary map */
353 unlink(maptpag);
354 unlink(maptdir);
355 exit(1);
356 }
357 if (rename(maptdir, map_name_dir) < 0) {
358 fprintf(stderr, "Couldn't rename %s to ", maptdir);
359 perror(map_name_dir);
360 /* remove the (presumably bad) .pag file */
361 unlink(map_name_pag);
362 /* throw away remaining part of original map */
363 unlink(map_name_dir);
364 /* throw away the temporary map */
365 unlink(maptdir);
366 fprintf(stderr, "WARNING: existing map \"%s.{dir,pag}\" destroyed\n",
367 mapsrc);
368 exit(1);
369 }
370#endif /* not HAVE_DB_SUFFIX */
371
372 exit(0);
373}
374
375#else /* not HAVE_MAP_NDBM */
376
377int
378main()
379{
380 fputs("mk-amd-map: This system does not support hashed database files\n", stderr);
381 exit(1);
382}
383
384#endif /* not HAVE_MAP_NDBM */