39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/bio.h>
43#include <sys/buf.h>
44#include <sys/vnode.h>
45#include <sys/mount.h>
46#include <sys/kernel.h>
47
48#include <isofs/cd9660/iso.h>
49#include <isofs/cd9660/cd9660_node.h>
50#include <isofs/cd9660/cd9660_rrip.h>
51#include <isofs/cd9660/iso_rrip.h>
52
53typedef int rrt_func_t(void *, ISO_RRIP_ANALYZE *ana);
54
55typedef struct {
56 char type[2];
57 rrt_func_t *func;
58 void (*func2)(struct iso_directory_record *isodir, ISO_RRIP_ANALYZE *ana);
59 int result;
60} RRIP_TABLE;
61
62static int cd9660_rrip_altname(ISO_RRIP_ALTNAME *p, ISO_RRIP_ANALYZE *ana);
63static int cd9660_rrip_attr(ISO_RRIP_ATTR *p, ISO_RRIP_ANALYZE *ana);
64static int cd9660_rrip_cont(ISO_RRIP_CONT *p, ISO_RRIP_ANALYZE *ana);
65static void cd9660_rrip_defattr(struct iso_directory_record *isodir,
66 ISO_RRIP_ANALYZE *ana);
67static void cd9660_rrip_defname(struct iso_directory_record *isodir,
68 ISO_RRIP_ANALYZE *ana);
69static void cd9660_rrip_deftstamp(struct iso_directory_record *isodir,
70 ISO_RRIP_ANALYZE *ana);
71static int cd9660_rrip_device(ISO_RRIP_DEVICE *p, ISO_RRIP_ANALYZE *ana);
72static int cd9660_rrip_extref(ISO_RRIP_EXTREF *p, ISO_RRIP_ANALYZE *ana);
73static int cd9660_rrip_idflag(ISO_RRIP_IDFLAG *p, ISO_RRIP_ANALYZE *ana);
74static int cd9660_rrip_loop(struct iso_directory_record *isodir,
75 ISO_RRIP_ANALYZE *ana, RRIP_TABLE *table);
76static int cd9660_rrip_pclink(ISO_RRIP_CLINK *p, ISO_RRIP_ANALYZE *ana);
77static int cd9660_rrip_reldir(ISO_RRIP_RELDIR *p, ISO_RRIP_ANALYZE *ana);
78static int cd9660_rrip_slink(ISO_RRIP_SLINK *p, ISO_RRIP_ANALYZE *ana);
79static int cd9660_rrip_stop(ISO_SUSP_HEADER *p, ISO_RRIP_ANALYZE *ana);
80static int cd9660_rrip_tstamp(ISO_RRIP_TSTAMP *p, ISO_RRIP_ANALYZE *ana);
81
82/*
83 * POSIX file attribute
84 */
85static int
86cd9660_rrip_attr(p,ana)
87 ISO_RRIP_ATTR *p;
88 ISO_RRIP_ANALYZE *ana;
89{
90 ana->inop->inode.iso_mode = isonum_733(p->mode);
91 ana->inop->inode.iso_uid = isonum_733(p->uid);
92 ana->inop->inode.iso_gid = isonum_733(p->gid);
93 ana->inop->inode.iso_links = isonum_733(p->links);
94 ana->fields &= ~ISO_SUSP_ATTR;
95 return ISO_SUSP_ATTR;
96}
97
98static void
99cd9660_rrip_defattr(isodir,ana)
100 struct iso_directory_record *isodir;
101 ISO_RRIP_ANALYZE *ana;
102{
103 /* But this is a required field! */
104 printf("RRIP without PX field?\n");
105 cd9660_defattr(isodir,ana->inop,NULL,ISO_FTYPE_RRIP);
106}
107
108/*
109 * Symbolic Links
110 */
111static int
112cd9660_rrip_slink(p,ana)
113 ISO_RRIP_SLINK *p;
114 ISO_RRIP_ANALYZE *ana;
115{
116 register ISO_RRIP_SLINK_COMPONENT *pcomp;
117 register ISO_RRIP_SLINK_COMPONENT *pcompe;
118 int len, wlen, cont;
119 char *outbuf, *inbuf;
120
121 pcomp = (ISO_RRIP_SLINK_COMPONENT *)p->component;
122 pcompe = (ISO_RRIP_SLINK_COMPONENT *)((char *)p + isonum_711(p->h.length));
123 len = *ana->outlen;
124 outbuf = ana->outbuf;
125 cont = ana->cont;
126
127 /*
128 * Gathering a Symbolic name from each component with path
129 */
130 for (;
131 pcomp < pcompe;
132 pcomp = (ISO_RRIP_SLINK_COMPONENT *)((char *)pcomp + ISO_RRIP_SLSIZ
133 + isonum_711(pcomp->clen))) {
134
135 if (!cont) {
136 if (len < ana->maxlen) {
137 len++;
138 *outbuf++ = '/';
139 }
140 }
141 cont = 0;
142
143 inbuf = "..";
144 wlen = 0;
145
146 switch (*pcomp->cflag) {
147
148 case ISO_SUSP_CFLAG_CURRENT:
149 /* Inserting Current */
150 wlen = 1;
151 break;
152
153 case ISO_SUSP_CFLAG_PARENT:
154 /* Inserting Parent */
155 wlen = 2;
156 break;
157
158 case ISO_SUSP_CFLAG_ROOT:
159 /* Inserting slash for ROOT */
160 /* start over from beginning(?) */
161 outbuf -= len;
162 len = 0;
163 break;
164
165 case ISO_SUSP_CFLAG_VOLROOT:
166 /* Inserting a mount point i.e. "/cdrom" */
167 /* same as above */
168 outbuf -= len;
169 len = 0;
170 inbuf = ana->imp->im_mountp->mnt_stat.f_mntonname;
171 wlen = strlen(inbuf);
172 break;
173
174 case ISO_SUSP_CFLAG_HOST:
175 /* Inserting hostname i.e. "kurt.tools.de" */
176 inbuf = hostname;
177 wlen = strlen(hostname);
178 break;
179
180 case ISO_SUSP_CFLAG_CONTINUE:
181 cont = 1;
182 /* FALLTHROUGH */
183 case 0:
184 /* Inserting component */
185 wlen = isonum_711(pcomp->clen);
186 inbuf = pcomp->name;
187 break;
188 default:
189 printf("RRIP with incorrect flags?");
190 wlen = ana->maxlen + 1;
191 break;
192 }
193
194 if (len + wlen > ana->maxlen) {
195 /* indicate error to caller */
196 ana->cont = 1;
197 ana->fields = 0;
198 ana->outbuf -= *ana->outlen;
199 *ana->outlen = 0;
200 return 0;
201 }
202
203 bcopy(inbuf,outbuf,wlen);
204 outbuf += wlen;
205 len += wlen;
206
207 }
208 ana->outbuf = outbuf;
209 *ana->outlen = len;
210 ana->cont = cont;
211
212 if (!isonum_711(p->flags)) {
213 ana->fields &= ~ISO_SUSP_SLINK;
214 return ISO_SUSP_SLINK;
215 }
216 return 0;
217}
218
219/*
220 * Alternate name
221 */
222static int
223cd9660_rrip_altname(p,ana)
224 ISO_RRIP_ALTNAME *p;
225 ISO_RRIP_ANALYZE *ana;
226{
227 char *inbuf;
228 int wlen;
229 int cont;
230
231 inbuf = "..";
232 wlen = 0;
233 cont = 0;
234
235 switch (*p->flags) {
236 case ISO_SUSP_CFLAG_CURRENT:
237 /* Inserting Current */
238 wlen = 1;
239 break;
240
241 case ISO_SUSP_CFLAG_PARENT:
242 /* Inserting Parent */
243 wlen = 2;
244 break;
245
246 case ISO_SUSP_CFLAG_HOST:
247 /* Inserting hostname i.e. "kurt.tools.de" */
248 inbuf = hostname;
249 wlen = strlen(hostname);
250 break;
251
252 case ISO_SUSP_CFLAG_CONTINUE:
253 cont = 1;
254 /* FALLTHROUGH */
255 case 0:
256 /* Inserting component */
257 wlen = isonum_711(p->h.length) - 5;
258 inbuf = (char *)p + 5;
259 break;
260
261 default:
262 printf("RRIP with incorrect NM flags?\n");
263 wlen = ana->maxlen + 1;
264 break;
265 }
266
267 if ((*ana->outlen += wlen) > ana->maxlen) {
268 /* treat as no name field */
269 ana->fields &= ~ISO_SUSP_ALTNAME;
270 ana->outbuf -= *ana->outlen - wlen;
271 *ana->outlen = 0;
272 return 0;
273 }
274
275 bcopy(inbuf,ana->outbuf,wlen);
276 ana->outbuf += wlen;
277
278 if (!cont) {
279 ana->fields &= ~ISO_SUSP_ALTNAME;
280 return ISO_SUSP_ALTNAME;
281 }
282 return 0;
283}
284
285static void
286cd9660_rrip_defname(isodir,ana)
287 struct iso_directory_record *isodir;
288 ISO_RRIP_ANALYZE *ana;
289{
290 isofntrans(isodir->name,isonum_711(isodir->name_len),
291 ana->outbuf,ana->outlen,
292 1,isonum_711(isodir->flags)&4, ana->imp->joliet_level,
293 ana->imp->im_flags, ana->imp->im_d2l);
294 switch (*ana->outbuf) {
295 default:
296 break;
297 case 1:
298 *ana->outlen = 2;
299 /* FALLTHROUGH */
300 case 0:
301 /* outlen is 1 already */
302 strcpy(ana->outbuf,"..");
303 break;
304 }
305}
306
307/*
308 * Parent or Child Link
309 */
310static int
311cd9660_rrip_pclink(p,ana)
312 ISO_RRIP_CLINK *p;
313 ISO_RRIP_ANALYZE *ana;
314{
315 *ana->inump = isonum_733(p->dir_loc) << ana->imp->im_bshift;
316 ana->fields &= ~(ISO_SUSP_CLINK|ISO_SUSP_PLINK);
317 return *p->h.type == 'C' ? ISO_SUSP_CLINK : ISO_SUSP_PLINK;
318}
319
320/*
321 * Relocated directory
322 */
323static int
324cd9660_rrip_reldir(p,ana)
325 ISO_RRIP_RELDIR *p;
326 ISO_RRIP_ANALYZE *ana;
327{
328 /* special hack to make caller aware of RE field */
329 *ana->outlen = 0;
330 ana->fields = 0;
331 return ISO_SUSP_RELDIR|ISO_SUSP_ALTNAME|ISO_SUSP_CLINK|ISO_SUSP_PLINK;
332}
333
334static int
335cd9660_rrip_tstamp(p,ana)
336 ISO_RRIP_TSTAMP *p;
337 ISO_RRIP_ANALYZE *ana;
338{
339 u_char *ptime;
340
341 ptime = p->time;
342
343 /* Check a format of time stamp (7bytes/17bytes) */
344 if (!(*p->flags&ISO_SUSP_TSTAMP_FORM17)) {
345 if (*p->flags&ISO_SUSP_TSTAMP_CREAT)
346 ptime += 7;
347
348 if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) {
349 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_mtime,
350 ISO_FTYPE_RRIP);
351 ptime += 7;
352 } else
353 bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec));
354
355 if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) {
356 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_atime,
357 ISO_FTYPE_RRIP);
358 ptime += 7;
359 } else
360 ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime;
361
362 if (*p->flags&ISO_SUSP_TSTAMP_ATTR)
363 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_ctime,
364 ISO_FTYPE_RRIP);
365 else
366 ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime;
367
368 } else {
369 if (*p->flags&ISO_SUSP_TSTAMP_CREAT)
370 ptime += 17;
371
372 if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) {
373 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_mtime);
374 ptime += 17;
375 } else
376 bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec));
377
378 if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) {
379 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_atime);
380 ptime += 17;
381 } else
382 ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime;
383
384 if (*p->flags&ISO_SUSP_TSTAMP_ATTR)
385 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_ctime);
386 else
387 ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime;
388
389 }
390 ana->fields &= ~ISO_SUSP_TSTAMP;
391 return ISO_SUSP_TSTAMP;
392}
393
394static void
395cd9660_rrip_deftstamp(isodir,ana)
396 struct iso_directory_record *isodir;
397 ISO_RRIP_ANALYZE *ana;
398{
399 cd9660_deftstamp(isodir,ana->inop,NULL,ISO_FTYPE_RRIP);
400}
401
402/*
403 * POSIX device modes
404 */
405static int
406cd9660_rrip_device(p,ana)
407 ISO_RRIP_DEVICE *p;
408 ISO_RRIP_ANALYZE *ana;
409{
410 u_int high, low;
411
412 high = isonum_733(p->dev_t_high);
413 low = isonum_733(p->dev_t_low);
414
415 if (high == 0)
| 39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/bio.h>
43#include <sys/buf.h>
44#include <sys/vnode.h>
45#include <sys/mount.h>
46#include <sys/kernel.h>
47
48#include <isofs/cd9660/iso.h>
49#include <isofs/cd9660/cd9660_node.h>
50#include <isofs/cd9660/cd9660_rrip.h>
51#include <isofs/cd9660/iso_rrip.h>
52
53typedef int rrt_func_t(void *, ISO_RRIP_ANALYZE *ana);
54
55typedef struct {
56 char type[2];
57 rrt_func_t *func;
58 void (*func2)(struct iso_directory_record *isodir, ISO_RRIP_ANALYZE *ana);
59 int result;
60} RRIP_TABLE;
61
62static int cd9660_rrip_altname(ISO_RRIP_ALTNAME *p, ISO_RRIP_ANALYZE *ana);
63static int cd9660_rrip_attr(ISO_RRIP_ATTR *p, ISO_RRIP_ANALYZE *ana);
64static int cd9660_rrip_cont(ISO_RRIP_CONT *p, ISO_RRIP_ANALYZE *ana);
65static void cd9660_rrip_defattr(struct iso_directory_record *isodir,
66 ISO_RRIP_ANALYZE *ana);
67static void cd9660_rrip_defname(struct iso_directory_record *isodir,
68 ISO_RRIP_ANALYZE *ana);
69static void cd9660_rrip_deftstamp(struct iso_directory_record *isodir,
70 ISO_RRIP_ANALYZE *ana);
71static int cd9660_rrip_device(ISO_RRIP_DEVICE *p, ISO_RRIP_ANALYZE *ana);
72static int cd9660_rrip_extref(ISO_RRIP_EXTREF *p, ISO_RRIP_ANALYZE *ana);
73static int cd9660_rrip_idflag(ISO_RRIP_IDFLAG *p, ISO_RRIP_ANALYZE *ana);
74static int cd9660_rrip_loop(struct iso_directory_record *isodir,
75 ISO_RRIP_ANALYZE *ana, RRIP_TABLE *table);
76static int cd9660_rrip_pclink(ISO_RRIP_CLINK *p, ISO_RRIP_ANALYZE *ana);
77static int cd9660_rrip_reldir(ISO_RRIP_RELDIR *p, ISO_RRIP_ANALYZE *ana);
78static int cd9660_rrip_slink(ISO_RRIP_SLINK *p, ISO_RRIP_ANALYZE *ana);
79static int cd9660_rrip_stop(ISO_SUSP_HEADER *p, ISO_RRIP_ANALYZE *ana);
80static int cd9660_rrip_tstamp(ISO_RRIP_TSTAMP *p, ISO_RRIP_ANALYZE *ana);
81
82/*
83 * POSIX file attribute
84 */
85static int
86cd9660_rrip_attr(p,ana)
87 ISO_RRIP_ATTR *p;
88 ISO_RRIP_ANALYZE *ana;
89{
90 ana->inop->inode.iso_mode = isonum_733(p->mode);
91 ana->inop->inode.iso_uid = isonum_733(p->uid);
92 ana->inop->inode.iso_gid = isonum_733(p->gid);
93 ana->inop->inode.iso_links = isonum_733(p->links);
94 ana->fields &= ~ISO_SUSP_ATTR;
95 return ISO_SUSP_ATTR;
96}
97
98static void
99cd9660_rrip_defattr(isodir,ana)
100 struct iso_directory_record *isodir;
101 ISO_RRIP_ANALYZE *ana;
102{
103 /* But this is a required field! */
104 printf("RRIP without PX field?\n");
105 cd9660_defattr(isodir,ana->inop,NULL,ISO_FTYPE_RRIP);
106}
107
108/*
109 * Symbolic Links
110 */
111static int
112cd9660_rrip_slink(p,ana)
113 ISO_RRIP_SLINK *p;
114 ISO_RRIP_ANALYZE *ana;
115{
116 register ISO_RRIP_SLINK_COMPONENT *pcomp;
117 register ISO_RRIP_SLINK_COMPONENT *pcompe;
118 int len, wlen, cont;
119 char *outbuf, *inbuf;
120
121 pcomp = (ISO_RRIP_SLINK_COMPONENT *)p->component;
122 pcompe = (ISO_RRIP_SLINK_COMPONENT *)((char *)p + isonum_711(p->h.length));
123 len = *ana->outlen;
124 outbuf = ana->outbuf;
125 cont = ana->cont;
126
127 /*
128 * Gathering a Symbolic name from each component with path
129 */
130 for (;
131 pcomp < pcompe;
132 pcomp = (ISO_RRIP_SLINK_COMPONENT *)((char *)pcomp + ISO_RRIP_SLSIZ
133 + isonum_711(pcomp->clen))) {
134
135 if (!cont) {
136 if (len < ana->maxlen) {
137 len++;
138 *outbuf++ = '/';
139 }
140 }
141 cont = 0;
142
143 inbuf = "..";
144 wlen = 0;
145
146 switch (*pcomp->cflag) {
147
148 case ISO_SUSP_CFLAG_CURRENT:
149 /* Inserting Current */
150 wlen = 1;
151 break;
152
153 case ISO_SUSP_CFLAG_PARENT:
154 /* Inserting Parent */
155 wlen = 2;
156 break;
157
158 case ISO_SUSP_CFLAG_ROOT:
159 /* Inserting slash for ROOT */
160 /* start over from beginning(?) */
161 outbuf -= len;
162 len = 0;
163 break;
164
165 case ISO_SUSP_CFLAG_VOLROOT:
166 /* Inserting a mount point i.e. "/cdrom" */
167 /* same as above */
168 outbuf -= len;
169 len = 0;
170 inbuf = ana->imp->im_mountp->mnt_stat.f_mntonname;
171 wlen = strlen(inbuf);
172 break;
173
174 case ISO_SUSP_CFLAG_HOST:
175 /* Inserting hostname i.e. "kurt.tools.de" */
176 inbuf = hostname;
177 wlen = strlen(hostname);
178 break;
179
180 case ISO_SUSP_CFLAG_CONTINUE:
181 cont = 1;
182 /* FALLTHROUGH */
183 case 0:
184 /* Inserting component */
185 wlen = isonum_711(pcomp->clen);
186 inbuf = pcomp->name;
187 break;
188 default:
189 printf("RRIP with incorrect flags?");
190 wlen = ana->maxlen + 1;
191 break;
192 }
193
194 if (len + wlen > ana->maxlen) {
195 /* indicate error to caller */
196 ana->cont = 1;
197 ana->fields = 0;
198 ana->outbuf -= *ana->outlen;
199 *ana->outlen = 0;
200 return 0;
201 }
202
203 bcopy(inbuf,outbuf,wlen);
204 outbuf += wlen;
205 len += wlen;
206
207 }
208 ana->outbuf = outbuf;
209 *ana->outlen = len;
210 ana->cont = cont;
211
212 if (!isonum_711(p->flags)) {
213 ana->fields &= ~ISO_SUSP_SLINK;
214 return ISO_SUSP_SLINK;
215 }
216 return 0;
217}
218
219/*
220 * Alternate name
221 */
222static int
223cd9660_rrip_altname(p,ana)
224 ISO_RRIP_ALTNAME *p;
225 ISO_RRIP_ANALYZE *ana;
226{
227 char *inbuf;
228 int wlen;
229 int cont;
230
231 inbuf = "..";
232 wlen = 0;
233 cont = 0;
234
235 switch (*p->flags) {
236 case ISO_SUSP_CFLAG_CURRENT:
237 /* Inserting Current */
238 wlen = 1;
239 break;
240
241 case ISO_SUSP_CFLAG_PARENT:
242 /* Inserting Parent */
243 wlen = 2;
244 break;
245
246 case ISO_SUSP_CFLAG_HOST:
247 /* Inserting hostname i.e. "kurt.tools.de" */
248 inbuf = hostname;
249 wlen = strlen(hostname);
250 break;
251
252 case ISO_SUSP_CFLAG_CONTINUE:
253 cont = 1;
254 /* FALLTHROUGH */
255 case 0:
256 /* Inserting component */
257 wlen = isonum_711(p->h.length) - 5;
258 inbuf = (char *)p + 5;
259 break;
260
261 default:
262 printf("RRIP with incorrect NM flags?\n");
263 wlen = ana->maxlen + 1;
264 break;
265 }
266
267 if ((*ana->outlen += wlen) > ana->maxlen) {
268 /* treat as no name field */
269 ana->fields &= ~ISO_SUSP_ALTNAME;
270 ana->outbuf -= *ana->outlen - wlen;
271 *ana->outlen = 0;
272 return 0;
273 }
274
275 bcopy(inbuf,ana->outbuf,wlen);
276 ana->outbuf += wlen;
277
278 if (!cont) {
279 ana->fields &= ~ISO_SUSP_ALTNAME;
280 return ISO_SUSP_ALTNAME;
281 }
282 return 0;
283}
284
285static void
286cd9660_rrip_defname(isodir,ana)
287 struct iso_directory_record *isodir;
288 ISO_RRIP_ANALYZE *ana;
289{
290 isofntrans(isodir->name,isonum_711(isodir->name_len),
291 ana->outbuf,ana->outlen,
292 1,isonum_711(isodir->flags)&4, ana->imp->joliet_level,
293 ana->imp->im_flags, ana->imp->im_d2l);
294 switch (*ana->outbuf) {
295 default:
296 break;
297 case 1:
298 *ana->outlen = 2;
299 /* FALLTHROUGH */
300 case 0:
301 /* outlen is 1 already */
302 strcpy(ana->outbuf,"..");
303 break;
304 }
305}
306
307/*
308 * Parent or Child Link
309 */
310static int
311cd9660_rrip_pclink(p,ana)
312 ISO_RRIP_CLINK *p;
313 ISO_RRIP_ANALYZE *ana;
314{
315 *ana->inump = isonum_733(p->dir_loc) << ana->imp->im_bshift;
316 ana->fields &= ~(ISO_SUSP_CLINK|ISO_SUSP_PLINK);
317 return *p->h.type == 'C' ? ISO_SUSP_CLINK : ISO_SUSP_PLINK;
318}
319
320/*
321 * Relocated directory
322 */
323static int
324cd9660_rrip_reldir(p,ana)
325 ISO_RRIP_RELDIR *p;
326 ISO_RRIP_ANALYZE *ana;
327{
328 /* special hack to make caller aware of RE field */
329 *ana->outlen = 0;
330 ana->fields = 0;
331 return ISO_SUSP_RELDIR|ISO_SUSP_ALTNAME|ISO_SUSP_CLINK|ISO_SUSP_PLINK;
332}
333
334static int
335cd9660_rrip_tstamp(p,ana)
336 ISO_RRIP_TSTAMP *p;
337 ISO_RRIP_ANALYZE *ana;
338{
339 u_char *ptime;
340
341 ptime = p->time;
342
343 /* Check a format of time stamp (7bytes/17bytes) */
344 if (!(*p->flags&ISO_SUSP_TSTAMP_FORM17)) {
345 if (*p->flags&ISO_SUSP_TSTAMP_CREAT)
346 ptime += 7;
347
348 if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) {
349 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_mtime,
350 ISO_FTYPE_RRIP);
351 ptime += 7;
352 } else
353 bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec));
354
355 if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) {
356 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_atime,
357 ISO_FTYPE_RRIP);
358 ptime += 7;
359 } else
360 ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime;
361
362 if (*p->flags&ISO_SUSP_TSTAMP_ATTR)
363 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_ctime,
364 ISO_FTYPE_RRIP);
365 else
366 ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime;
367
368 } else {
369 if (*p->flags&ISO_SUSP_TSTAMP_CREAT)
370 ptime += 17;
371
372 if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) {
373 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_mtime);
374 ptime += 17;
375 } else
376 bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec));
377
378 if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) {
379 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_atime);
380 ptime += 17;
381 } else
382 ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime;
383
384 if (*p->flags&ISO_SUSP_TSTAMP_ATTR)
385 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_ctime);
386 else
387 ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime;
388
389 }
390 ana->fields &= ~ISO_SUSP_TSTAMP;
391 return ISO_SUSP_TSTAMP;
392}
393
394static void
395cd9660_rrip_deftstamp(isodir,ana)
396 struct iso_directory_record *isodir;
397 ISO_RRIP_ANALYZE *ana;
398{
399 cd9660_deftstamp(isodir,ana->inop,NULL,ISO_FTYPE_RRIP);
400}
401
402/*
403 * POSIX device modes
404 */
405static int
406cd9660_rrip_device(p,ana)
407 ISO_RRIP_DEVICE *p;
408 ISO_RRIP_ANALYZE *ana;
409{
410 u_int high, low;
411
412 high = isonum_733(p->dev_t_high);
413 low = isonum_733(p->dev_t_low);
414
415 if (high == 0)
|
419 ana->fields &= ~ISO_SUSP_DEVICE;
420 return ISO_SUSP_DEVICE;
421}
422
423/*
424 * Flag indicating
425 */
426static int
427cd9660_rrip_idflag(p,ana)
428 ISO_RRIP_IDFLAG *p;
429 ISO_RRIP_ANALYZE *ana;
430{
431 ana->fields &= isonum_711(p->flags)|~0xff; /* don't touch high bits */
432 /* special handling of RE field */
433 if (ana->fields&ISO_SUSP_RELDIR)
434 return cd9660_rrip_reldir(/* XXX */ (ISO_RRIP_RELDIR *)p,ana);
435
436 return ISO_SUSP_IDFLAG;
437}
438
439/*
440 * Continuation pointer
441 */
442static int
443cd9660_rrip_cont(p,ana)
444 ISO_RRIP_CONT *p;
445 ISO_RRIP_ANALYZE *ana;
446{
447 ana->iso_ce_blk = isonum_733(p->location);
448 ana->iso_ce_off = isonum_733(p->offset);
449 ana->iso_ce_len = isonum_733(p->length);
450 return ISO_SUSP_CONT;
451}
452
453/*
454 * System Use end
455 */
456static int
457cd9660_rrip_stop(p,ana)
458 ISO_SUSP_HEADER *p;
459 ISO_RRIP_ANALYZE *ana;
460{
461 return ISO_SUSP_STOP;
462}
463
464/*
465 * Extension reference
466 */
467static int
468cd9660_rrip_extref(p,ana)
469 ISO_RRIP_EXTREF *p;
470 ISO_RRIP_ANALYZE *ana;
471{
472 if (isonum_711(p->len_id) != 10
473 || bcmp((char *)p + 8,"RRIP_1991A",10)
474 || isonum_711(p->version) != 1)
475 return 0;
476 ana->fields &= ~ISO_SUSP_EXTREF;
477 return ISO_SUSP_EXTREF;
478}
479
480static int
481cd9660_rrip_loop(isodir,ana,table)
482 struct iso_directory_record *isodir;
483 ISO_RRIP_ANALYZE *ana;
484 RRIP_TABLE *table;
485{
486 register RRIP_TABLE *ptable;
487 register ISO_SUSP_HEADER *phead;
488 register ISO_SUSP_HEADER *pend;
489 struct buf *bp = NULL;
490 char *pwhead;
491 u_short c;
492 int result;
493
494 /*
495 * Note: If name length is odd,
496 * it will be padding 1 byte after the name
497 */
498 pwhead = isodir->name + isonum_711(isodir->name_len);
499 if (!(isonum_711(isodir->name_len)&1))
500 pwhead++;
501 isochar(isodir->name, pwhead, ana->imp->joliet_level, &c, NULL,
502 ana->imp->im_flags, ana->imp->im_d2l);
503
504 /* If it's not the '.' entry of the root dir obey SP field */
505 if (c != 0 || isonum_733(isodir->extent) != ana->imp->root_extent)
506 pwhead += ana->imp->rr_skip;
507 else
508 pwhead += ana->imp->rr_skip0;
509
510 phead = (ISO_SUSP_HEADER *)pwhead;
511 pend = (ISO_SUSP_HEADER *)((char *)isodir + isonum_711(isodir->length));
512
513 result = 0;
514 while (1) {
515 ana->iso_ce_len = 0;
516 /*
517 * Note: "pend" should be more than one SUSP header
518 */
519 while (pend >= phead + 1) {
520 if (isonum_711(phead->version) == 1) {
521 for (ptable = table; ptable->func; ptable++) {
522 if (*phead->type == *ptable->type
523 && phead->type[1] == ptable->type[1]) {
524 result |= ptable->func(phead,ana);
525 break;
526 }
527 }
528 if (!ana->fields)
529 break;
530 }
531 if (result&ISO_SUSP_STOP) {
532 result &= ~ISO_SUSP_STOP;
533 break;
534 }
535 /* plausibility check */
536 if (isonum_711(phead->length) < sizeof(*phead))
537 break;
538 /*
539 * move to next SUSP
540 * Hopefully this works with newer versions, too
541 */
542 phead = (ISO_SUSP_HEADER *)((char *)phead + isonum_711(phead->length));
543 }
544
545 if (ana->fields && ana->iso_ce_len) {
546 if (ana->iso_ce_blk >= ana->imp->volume_space_size
547 || ana->iso_ce_off + ana->iso_ce_len > ana->imp->logical_block_size
548 || bread(ana->imp->im_devvp,
549 ana->iso_ce_blk <<
550 (ana->imp->im_bshift - DEV_BSHIFT),
551 ana->imp->logical_block_size, NOCRED, &bp))
552 /* what to do now? */
553 break;
554 phead = (ISO_SUSP_HEADER *)(bp->b_data + ana->iso_ce_off);
555 pend = (ISO_SUSP_HEADER *) ((char *)phead + ana->iso_ce_len);
556 } else
557 break;
558 }
559 if (bp)
560 brelse(bp);
561 /*
562 * If we don't find the Basic SUSP stuffs, just set default value
563 * (attribute/time stamp)
564 */
565 for (ptable = table; ptable->func2; ptable++)
566 if (!(ptable->result&result))
567 ptable->func2(isodir,ana);
568
569 return result;
570}
571
572/*
573 * Get Attributes.
574 */
575/*
576 * XXX the casts are bogus but will do for now.
577 */
578#define BC (rrt_func_t *)
579static RRIP_TABLE rrip_table_analyze[] = {
580 { "PX", BC cd9660_rrip_attr, cd9660_rrip_defattr, ISO_SUSP_ATTR },
581 { "TF", BC cd9660_rrip_tstamp, cd9660_rrip_deftstamp, ISO_SUSP_TSTAMP },
582 { "PN", BC cd9660_rrip_device, 0, ISO_SUSP_DEVICE },
583 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
584 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
585 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
586 { "", 0, 0, 0 }
587};
588
589int
590cd9660_rrip_analyze(isodir,inop,imp)
591 struct iso_directory_record *isodir;
592 struct iso_node *inop;
593 struct iso_mnt *imp;
594{
595 ISO_RRIP_ANALYZE analyze;
596
597 analyze.inop = inop;
598 analyze.imp = imp;
599 analyze.fields = ISO_SUSP_ATTR|ISO_SUSP_TSTAMP|ISO_SUSP_DEVICE;
600
601 return cd9660_rrip_loop(isodir,&analyze,rrip_table_analyze);
602}
603
604/*
605 * Get Alternate Name.
606 */
607static RRIP_TABLE rrip_table_getname[] = {
608 { "NM", BC cd9660_rrip_altname, cd9660_rrip_defname, ISO_SUSP_ALTNAME },
609 { "CL", BC cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK },
610 { "PL", BC cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK },
611 { "RE", BC cd9660_rrip_reldir, 0, ISO_SUSP_RELDIR },
612 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
613 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
614 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
615 { "", 0, 0, 0 }
616};
617
618int
619cd9660_rrip_getname(isodir,outbuf,outlen,inump,imp)
620 struct iso_directory_record *isodir;
621 char *outbuf;
622 u_short *outlen;
623 ino_t *inump;
624 struct iso_mnt *imp;
625{
626 ISO_RRIP_ANALYZE analyze;
627 RRIP_TABLE *tab;
628 u_short c;
629
630 analyze.outbuf = outbuf;
631 analyze.outlen = outlen;
632 analyze.maxlen = NAME_MAX;
633 analyze.inump = inump;
634 analyze.imp = imp;
635 analyze.fields = ISO_SUSP_ALTNAME|ISO_SUSP_RELDIR|ISO_SUSP_CLINK|ISO_SUSP_PLINK;
636 *outlen = 0;
637
638 isochar(isodir->name, isodir->name + isonum_711(isodir->name_len),
639 imp->joliet_level, &c, NULL, imp->im_flags, imp->im_d2l);
640 tab = rrip_table_getname;
641 if (c == 0 || c == 1) {
642 cd9660_rrip_defname(isodir,&analyze);
643
644 analyze.fields &= ~ISO_SUSP_ALTNAME;
645 tab++;
646 }
647
648 return cd9660_rrip_loop(isodir,&analyze,tab);
649}
650
651/*
652 * Get Symbolic Link.
653 */
654static RRIP_TABLE rrip_table_getsymname[] = {
655 { "SL", BC cd9660_rrip_slink, 0, ISO_SUSP_SLINK },
656 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
657 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
658 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
659 { "", 0, 0, 0 }
660};
661
662int
663cd9660_rrip_getsymname(isodir,outbuf,outlen,imp)
664 struct iso_directory_record *isodir;
665 char *outbuf;
666 u_short *outlen;
667 struct iso_mnt *imp;
668{
669 ISO_RRIP_ANALYZE analyze;
670
671 analyze.outbuf = outbuf;
672 analyze.outlen = outlen;
673 *outlen = 0;
674 analyze.maxlen = MAXPATHLEN;
675 analyze.cont = 1; /* don't start with a slash */
676 analyze.imp = imp;
677 analyze.fields = ISO_SUSP_SLINK;
678
679 return (cd9660_rrip_loop(isodir,&analyze,rrip_table_getsymname)&ISO_SUSP_SLINK);
680}
681
682static RRIP_TABLE rrip_table_extref[] = {
683 { "ER", BC cd9660_rrip_extref, 0, ISO_SUSP_EXTREF },
684 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
685 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
686 { "", 0, 0, 0 }
687};
688
689/*
690 * Check for Rock Ridge Extension and return offset of its fields.
691 * Note: We insist on the ER field.
692 */
693int
694cd9660_rrip_offset(isodir,imp)
695 struct iso_directory_record *isodir;
696 struct iso_mnt *imp;
697{
698 ISO_RRIP_OFFSET *p;
699 ISO_RRIP_ANALYZE analyze;
700
701 imp->rr_skip0 = 0;
702 p = (ISO_RRIP_OFFSET *)(isodir->name + 1);
703 if (bcmp(p,"SP\7\1\276\357",6)) {
704 /* Maybe, it's a CDROM XA disc? */
705 imp->rr_skip0 = 15;
706 p = (ISO_RRIP_OFFSET *)((char *)p + 15);
707 if (bcmp(p,"SP\7\1\276\357",6))
708 return -1;
709 }
710
711 analyze.imp = imp;
712 analyze.fields = ISO_SUSP_EXTREF;
713 if (!(cd9660_rrip_loop(isodir,&analyze,rrip_table_extref)&ISO_SUSP_EXTREF))
714 return -1;
715
716 return isonum_711(p->skip);
717}
| 419 ana->fields &= ~ISO_SUSP_DEVICE;
420 return ISO_SUSP_DEVICE;
421}
422
423/*
424 * Flag indicating
425 */
426static int
427cd9660_rrip_idflag(p,ana)
428 ISO_RRIP_IDFLAG *p;
429 ISO_RRIP_ANALYZE *ana;
430{
431 ana->fields &= isonum_711(p->flags)|~0xff; /* don't touch high bits */
432 /* special handling of RE field */
433 if (ana->fields&ISO_SUSP_RELDIR)
434 return cd9660_rrip_reldir(/* XXX */ (ISO_RRIP_RELDIR *)p,ana);
435
436 return ISO_SUSP_IDFLAG;
437}
438
439/*
440 * Continuation pointer
441 */
442static int
443cd9660_rrip_cont(p,ana)
444 ISO_RRIP_CONT *p;
445 ISO_RRIP_ANALYZE *ana;
446{
447 ana->iso_ce_blk = isonum_733(p->location);
448 ana->iso_ce_off = isonum_733(p->offset);
449 ana->iso_ce_len = isonum_733(p->length);
450 return ISO_SUSP_CONT;
451}
452
453/*
454 * System Use end
455 */
456static int
457cd9660_rrip_stop(p,ana)
458 ISO_SUSP_HEADER *p;
459 ISO_RRIP_ANALYZE *ana;
460{
461 return ISO_SUSP_STOP;
462}
463
464/*
465 * Extension reference
466 */
467static int
468cd9660_rrip_extref(p,ana)
469 ISO_RRIP_EXTREF *p;
470 ISO_RRIP_ANALYZE *ana;
471{
472 if (isonum_711(p->len_id) != 10
473 || bcmp((char *)p + 8,"RRIP_1991A",10)
474 || isonum_711(p->version) != 1)
475 return 0;
476 ana->fields &= ~ISO_SUSP_EXTREF;
477 return ISO_SUSP_EXTREF;
478}
479
480static int
481cd9660_rrip_loop(isodir,ana,table)
482 struct iso_directory_record *isodir;
483 ISO_RRIP_ANALYZE *ana;
484 RRIP_TABLE *table;
485{
486 register RRIP_TABLE *ptable;
487 register ISO_SUSP_HEADER *phead;
488 register ISO_SUSP_HEADER *pend;
489 struct buf *bp = NULL;
490 char *pwhead;
491 u_short c;
492 int result;
493
494 /*
495 * Note: If name length is odd,
496 * it will be padding 1 byte after the name
497 */
498 pwhead = isodir->name + isonum_711(isodir->name_len);
499 if (!(isonum_711(isodir->name_len)&1))
500 pwhead++;
501 isochar(isodir->name, pwhead, ana->imp->joliet_level, &c, NULL,
502 ana->imp->im_flags, ana->imp->im_d2l);
503
504 /* If it's not the '.' entry of the root dir obey SP field */
505 if (c != 0 || isonum_733(isodir->extent) != ana->imp->root_extent)
506 pwhead += ana->imp->rr_skip;
507 else
508 pwhead += ana->imp->rr_skip0;
509
510 phead = (ISO_SUSP_HEADER *)pwhead;
511 pend = (ISO_SUSP_HEADER *)((char *)isodir + isonum_711(isodir->length));
512
513 result = 0;
514 while (1) {
515 ana->iso_ce_len = 0;
516 /*
517 * Note: "pend" should be more than one SUSP header
518 */
519 while (pend >= phead + 1) {
520 if (isonum_711(phead->version) == 1) {
521 for (ptable = table; ptable->func; ptable++) {
522 if (*phead->type == *ptable->type
523 && phead->type[1] == ptable->type[1]) {
524 result |= ptable->func(phead,ana);
525 break;
526 }
527 }
528 if (!ana->fields)
529 break;
530 }
531 if (result&ISO_SUSP_STOP) {
532 result &= ~ISO_SUSP_STOP;
533 break;
534 }
535 /* plausibility check */
536 if (isonum_711(phead->length) < sizeof(*phead))
537 break;
538 /*
539 * move to next SUSP
540 * Hopefully this works with newer versions, too
541 */
542 phead = (ISO_SUSP_HEADER *)((char *)phead + isonum_711(phead->length));
543 }
544
545 if (ana->fields && ana->iso_ce_len) {
546 if (ana->iso_ce_blk >= ana->imp->volume_space_size
547 || ana->iso_ce_off + ana->iso_ce_len > ana->imp->logical_block_size
548 || bread(ana->imp->im_devvp,
549 ana->iso_ce_blk <<
550 (ana->imp->im_bshift - DEV_BSHIFT),
551 ana->imp->logical_block_size, NOCRED, &bp))
552 /* what to do now? */
553 break;
554 phead = (ISO_SUSP_HEADER *)(bp->b_data + ana->iso_ce_off);
555 pend = (ISO_SUSP_HEADER *) ((char *)phead + ana->iso_ce_len);
556 } else
557 break;
558 }
559 if (bp)
560 brelse(bp);
561 /*
562 * If we don't find the Basic SUSP stuffs, just set default value
563 * (attribute/time stamp)
564 */
565 for (ptable = table; ptable->func2; ptable++)
566 if (!(ptable->result&result))
567 ptable->func2(isodir,ana);
568
569 return result;
570}
571
572/*
573 * Get Attributes.
574 */
575/*
576 * XXX the casts are bogus but will do for now.
577 */
578#define BC (rrt_func_t *)
579static RRIP_TABLE rrip_table_analyze[] = {
580 { "PX", BC cd9660_rrip_attr, cd9660_rrip_defattr, ISO_SUSP_ATTR },
581 { "TF", BC cd9660_rrip_tstamp, cd9660_rrip_deftstamp, ISO_SUSP_TSTAMP },
582 { "PN", BC cd9660_rrip_device, 0, ISO_SUSP_DEVICE },
583 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
584 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
585 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
586 { "", 0, 0, 0 }
587};
588
589int
590cd9660_rrip_analyze(isodir,inop,imp)
591 struct iso_directory_record *isodir;
592 struct iso_node *inop;
593 struct iso_mnt *imp;
594{
595 ISO_RRIP_ANALYZE analyze;
596
597 analyze.inop = inop;
598 analyze.imp = imp;
599 analyze.fields = ISO_SUSP_ATTR|ISO_SUSP_TSTAMP|ISO_SUSP_DEVICE;
600
601 return cd9660_rrip_loop(isodir,&analyze,rrip_table_analyze);
602}
603
604/*
605 * Get Alternate Name.
606 */
607static RRIP_TABLE rrip_table_getname[] = {
608 { "NM", BC cd9660_rrip_altname, cd9660_rrip_defname, ISO_SUSP_ALTNAME },
609 { "CL", BC cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK },
610 { "PL", BC cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK },
611 { "RE", BC cd9660_rrip_reldir, 0, ISO_SUSP_RELDIR },
612 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
613 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
614 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
615 { "", 0, 0, 0 }
616};
617
618int
619cd9660_rrip_getname(isodir,outbuf,outlen,inump,imp)
620 struct iso_directory_record *isodir;
621 char *outbuf;
622 u_short *outlen;
623 ino_t *inump;
624 struct iso_mnt *imp;
625{
626 ISO_RRIP_ANALYZE analyze;
627 RRIP_TABLE *tab;
628 u_short c;
629
630 analyze.outbuf = outbuf;
631 analyze.outlen = outlen;
632 analyze.maxlen = NAME_MAX;
633 analyze.inump = inump;
634 analyze.imp = imp;
635 analyze.fields = ISO_SUSP_ALTNAME|ISO_SUSP_RELDIR|ISO_SUSP_CLINK|ISO_SUSP_PLINK;
636 *outlen = 0;
637
638 isochar(isodir->name, isodir->name + isonum_711(isodir->name_len),
639 imp->joliet_level, &c, NULL, imp->im_flags, imp->im_d2l);
640 tab = rrip_table_getname;
641 if (c == 0 || c == 1) {
642 cd9660_rrip_defname(isodir,&analyze);
643
644 analyze.fields &= ~ISO_SUSP_ALTNAME;
645 tab++;
646 }
647
648 return cd9660_rrip_loop(isodir,&analyze,tab);
649}
650
651/*
652 * Get Symbolic Link.
653 */
654static RRIP_TABLE rrip_table_getsymname[] = {
655 { "SL", BC cd9660_rrip_slink, 0, ISO_SUSP_SLINK },
656 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
657 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
658 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
659 { "", 0, 0, 0 }
660};
661
662int
663cd9660_rrip_getsymname(isodir,outbuf,outlen,imp)
664 struct iso_directory_record *isodir;
665 char *outbuf;
666 u_short *outlen;
667 struct iso_mnt *imp;
668{
669 ISO_RRIP_ANALYZE analyze;
670
671 analyze.outbuf = outbuf;
672 analyze.outlen = outlen;
673 *outlen = 0;
674 analyze.maxlen = MAXPATHLEN;
675 analyze.cont = 1; /* don't start with a slash */
676 analyze.imp = imp;
677 analyze.fields = ISO_SUSP_SLINK;
678
679 return (cd9660_rrip_loop(isodir,&analyze,rrip_table_getsymname)&ISO_SUSP_SLINK);
680}
681
682static RRIP_TABLE rrip_table_extref[] = {
683 { "ER", BC cd9660_rrip_extref, 0, ISO_SUSP_EXTREF },
684 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
685 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
686 { "", 0, 0, 0 }
687};
688
689/*
690 * Check for Rock Ridge Extension and return offset of its fields.
691 * Note: We insist on the ER field.
692 */
693int
694cd9660_rrip_offset(isodir,imp)
695 struct iso_directory_record *isodir;
696 struct iso_mnt *imp;
697{
698 ISO_RRIP_OFFSET *p;
699 ISO_RRIP_ANALYZE analyze;
700
701 imp->rr_skip0 = 0;
702 p = (ISO_RRIP_OFFSET *)(isodir->name + 1);
703 if (bcmp(p,"SP\7\1\276\357",6)) {
704 /* Maybe, it's a CDROM XA disc? */
705 imp->rr_skip0 = 15;
706 p = (ISO_RRIP_OFFSET *)((char *)p + 15);
707 if (bcmp(p,"SP\7\1\276\357",6))
708 return -1;
709 }
710
711 analyze.imp = imp;
712 analyze.fields = ISO_SUSP_EXTREF;
713 if (!(cd9660_rrip_loop(isodir,&analyze,rrip_table_extref)&ISO_SUSP_EXTREF))
714 return -1;
715
716 return isonum_711(p->skip);
717}
|