2 7285a491 2004-06-17 devnull * To understand this code, see Rock Ridge Interchange Protocol
3 7285a491 2004-06-17 devnull * standard 1.12 and System Use Sharing Protocol version 1.12
4 7285a491 2004-06-17 devnull * (search for rrip112.ps and susp112.ps on the web).
6 7285a491 2004-06-17 devnull * Even better, go read something else.
9 7285a491 2004-06-17 devnull #include <u.h>
10 7285a491 2004-06-17 devnull #include <libc.h>
11 7285a491 2004-06-17 devnull #include <bio.h>
12 7285a491 2004-06-17 devnull #include <libsec.h>
13 7285a491 2004-06-17 devnull #include "iso9660.h"
15 7285a491 2004-06-17 devnull static long mode(Direc*, int);
16 7285a491 2004-06-17 devnull static long nlink(Direc*);
17 7285a491 2004-06-17 devnull static ulong suspdirflags(Direc*, int);
18 7285a491 2004-06-17 devnull static ulong CputsuspCE(Cdimg *cd, ulong offset);
19 7285a491 2004-06-17 devnull static int CputsuspER(Cdimg*, int);
20 7285a491 2004-06-17 devnull static int CputsuspRR(Cdimg*, int, int);
21 7285a491 2004-06-17 devnull static int CputsuspSP(Cdimg*, int);
22 cbeb0b26 2006-04-01 devnull /*static int CputsuspST(Cdimg*, int); */
23 7285a491 2004-06-17 devnull static int Cputrripname(Cdimg*, char*, int, char*, int);
24 7285a491 2004-06-17 devnull static int CputrripSL(Cdimg*, int, int, char*, int);
25 7285a491 2004-06-17 devnull static int CputrripPX(Cdimg*, Direc*, int, int);
26 7285a491 2004-06-17 devnull static int CputrripTF(Cdimg*, Direc*, int, int);
29 7285a491 2004-06-17 devnull * Patch the length field in a CE record.
31 7285a491 2004-06-17 devnull static void
32 7285a491 2004-06-17 devnull setcelen(Cdimg *cd, ulong woffset, ulong len)
36 7285a491 2004-06-17 devnull o = Cwoffset(cd);
37 7285a491 2004-06-17 devnull Cwseek(cd, woffset);
38 7285a491 2004-06-17 devnull Cputn(cd, len, 4);
39 7285a491 2004-06-17 devnull Cwseek(cd, o);
43 7285a491 2004-06-17 devnull * Rock Ridge data is put into little blockettes, which can be
44 7285a491 2004-06-17 devnull * at most 256 bytes including a one-byte length. Some number
45 7285a491 2004-06-17 devnull * of blockettes get packed together into a normal 2048-byte block.
46 7285a491 2004-06-17 devnull * Blockettes cannot cross block boundaries.
48 7285a491 2004-06-17 devnull * A Cbuf is a blockette buffer. Len contains
49 7285a491 2004-06-17 devnull * the length of the buffer written so far, and we can
50 7285a491 2004-06-17 devnull * write up to 254-28.
52 7285a491 2004-06-17 devnull * We only have one active Cbuf at a time; cdimg.rrcontin is the byte
53 7285a491 2004-06-17 devnull * offset of the beginning of that Cbuf.
55 7285a491 2004-06-17 devnull * The blockette can be at most 255 bytes. The last 28
56 7285a491 2004-06-17 devnull * will be (in the worst case) a CE record pointing at
57 7285a491 2004-06-17 devnull * a new blockette. If we do write 255 bytes though,
58 7285a491 2004-06-17 devnull * we'll try to pad it out to be even, and overflow.
59 7285a491 2004-06-17 devnull * So the maximum is 254-28.
61 7285a491 2004-06-17 devnull * Ceoffset contains the offset to be used with setcelen
62 7285a491 2004-06-17 devnull * to patch the CE pointing at the Cbuf once we know how
63 7285a491 2004-06-17 devnull * long the Cbuf is.
65 7285a491 2004-06-17 devnull typedef struct Cbuf Cbuf;
66 7285a491 2004-06-17 devnull struct Cbuf {
67 7285a491 2004-06-17 devnull int len; /* written so far, of 254-28 */
68 7285a491 2004-06-17 devnull ulong ceoffset;
71 7285a491 2004-06-17 devnull static int
72 7285a491 2004-06-17 devnull freespace(Cbuf *cp)
74 7285a491 2004-06-17 devnull return (254-28) - cp->len;
77 7285a491 2004-06-17 devnull static Cbuf*
78 7285a491 2004-06-17 devnull ensurespace(Cdimg *cd, int n, Cbuf *co, Cbuf *cn, int dowrite)
80 7285a491 2004-06-17 devnull ulong end;
82 7285a491 2004-06-17 devnull if(co->len+n <= 254-28) {
83 7285a491 2004-06-17 devnull co->len += n;
84 7285a491 2004-06-17 devnull return co;
87 7285a491 2004-06-17 devnull co->len += 28;
88 7285a491 2004-06-17 devnull assert(co->len <= 254);
90 7285a491 2004-06-17 devnull if(dowrite == 0) {
91 7285a491 2004-06-17 devnull cn->len = n;
92 7285a491 2004-06-17 devnull return cn;
96 7285a491 2004-06-17 devnull * the current blockette is full; update cd->rrcontin and then
97 7285a491 2004-06-17 devnull * write a CE record to finish it. Unfortunately we need to
98 7285a491 2004-06-17 devnull * figure out which block will be next before we write the CE.
100 7285a491 2004-06-17 devnull end = Cwoffset(cd)+28;
103 7285a491 2004-06-17 devnull * if we're in a continuation blockette, update rrcontin.
104 7285a491 2004-06-17 devnull * also, write our length into the field of the CE record
105 7285a491 2004-06-17 devnull * that points at us.
107 7285a491 2004-06-17 devnull if(cd->rrcontin+co->len == end) {
108 7285a491 2004-06-17 devnull assert(cd->rrcontin != 0);
109 7285a491 2004-06-17 devnull assert(co == cn);
110 7285a491 2004-06-17 devnull cd->rrcontin += co->len;
111 7285a491 2004-06-17 devnull setcelen(cd, co->ceoffset, co->len);
113 7285a491 2004-06-17 devnull assert(co != cn);
116 7285a491 2004-06-17 devnull * if the current continuation block can't fit another
117 7285a491 2004-06-17 devnull * blockette, then start a new continuation block.
118 7285a491 2004-06-17 devnull * rrcontin = 0 (mod Blocksize) means we just finished
119 7285a491 2004-06-17 devnull * one, not that we've just started one.
121 7285a491 2004-06-17 devnull if(cd->rrcontin%Blocksize == 0
122 7285a491 2004-06-17 devnull || cd->rrcontin/Blocksize != (cd->rrcontin+256)/Blocksize) {
123 7285a491 2004-06-17 devnull cd->rrcontin = cd->nextblock*Blocksize;
124 7285a491 2004-06-17 devnull cd->nextblock++;
127 7285a491 2004-06-17 devnull cn->ceoffset = CputsuspCE(cd, cd->rrcontin);
129 7285a491 2004-06-17 devnull assert(Cwoffset(cd) == end);
131 7285a491 2004-06-17 devnull cn->len = n;
132 7285a491 2004-06-17 devnull Cwseek(cd, cd->rrcontin);
133 7285a491 2004-06-17 devnull assert(cd->rrcontin != 0);
135 7285a491 2004-06-17 devnull return cn;
139 7285a491 2004-06-17 devnull * Put down the name, but we might need to break it
140 7285a491 2004-06-17 devnull * into chunks so that each chunk fits in 254-28-5 bytes.
141 7285a491 2004-06-17 devnull * What a crock.
143 7285a491 2004-06-17 devnull * The new Plan 9 format uses strings of this form too,
144 7285a491 2004-06-17 devnull * since they're already there.
147 7285a491 2004-06-17 devnull Cputstring(Cdimg *cd, Cbuf *cp, Cbuf *cn, char *nm, char *p, int flags, int dowrite)
149 7285a491 2004-06-17 devnull char buf[256], *q;
150 7285a491 2004-06-17 devnull int free;
152 7285a491 2004-06-17 devnull for(; p[0] != '\0'; p = q) {
153 7285a491 2004-06-17 devnull cp = ensurespace(cd, 5+1, cp, cn, dowrite);
154 7285a491 2004-06-17 devnull cp->len -= 5+1;
155 7285a491 2004-06-17 devnull free = freespace(cp);
156 7285a491 2004-06-17 devnull assert(5+1 <= free && free < 256);
158 7285a491 2004-06-17 devnull strncpy(buf, p, free-5);
159 7285a491 2004-06-17 devnull buf[free-5] = '\0';
160 7285a491 2004-06-17 devnull q = p+strlen(buf);
161 7285a491 2004-06-17 devnull p = buf;
163 7285a491 2004-06-17 devnull ensurespace(cd, 5+strlen(p), cp, nil, dowrite); /* nil: better not use this. */
164 7285a491 2004-06-17 devnull Cputrripname(cd, nm, flags | (q[0] ? NMcontinue : 0), p, dowrite);
166 7285a491 2004-06-17 devnull return cp;
170 7285a491 2004-06-17 devnull * Write a Rock Ridge SUSP set of records for a directory entry.
173 7285a491 2004-06-17 devnull Cputsysuse(Cdimg *cd, Direc *d, int dot, int dowrite, int initlen)
175 7285a491 2004-06-17 devnull char buf[256], buf0[256], *nextpath, *p, *path, *q;
176 7285a491 2004-06-17 devnull int flags, free, m, what;
177 7285a491 2004-06-17 devnull ulong o;
178 7285a491 2004-06-17 devnull Cbuf cn, co, *cp;
180 7285a491 2004-06-17 devnull assert(cd != nil);
181 7285a491 2004-06-17 devnull assert((initlen&1) == 0);
183 7285a491 2004-06-17 devnull if(dot == DTroot)
184 7285a491 2004-06-17 devnull return 0;
186 7285a491 2004-06-17 devnull co.len = initlen;
188 7285a491 2004-06-17 devnull o = Cwoffset(cd);
190 7285a491 2004-06-17 devnull assert(dowrite==0 || Cwoffset(cd) == o+co.len-initlen);
191 7285a491 2004-06-17 devnull cp = &co;
193 7285a491 2004-06-17 devnull if (dot == DTrootdot) {
194 7285a491 2004-06-17 devnull m = CputsuspSP(cd, 0);
195 7285a491 2004-06-17 devnull cp = ensurespace(cd, m, cp, &cn, dowrite);
196 7285a491 2004-06-17 devnull CputsuspSP(cd, dowrite);
198 7285a491 2004-06-17 devnull m = CputsuspER(cd, 0);
199 7285a491 2004-06-17 devnull cp = ensurespace(cd, m, cp, &cn, dowrite);
200 7285a491 2004-06-17 devnull CputsuspER(cd, dowrite);
204 7285a491 2004-06-17 devnull * In a perfect world, we'd be able to omit the NM
205 7285a491 2004-06-17 devnull * entries when our name was all lowercase and conformant,
206 7285a491 2004-06-17 devnull * but OpenBSD insists on uppercasing (really, not lowercasing)
207 7285a491 2004-06-17 devnull * the ISO9660 names.
209 7285a491 2004-06-17 devnull what = RR_PX | RR_TF | RR_NM;
210 7285a491 2004-06-17 devnull if(d != nil && (d->mode & CHLINK))
211 7285a491 2004-06-17 devnull what |= RR_SL;
213 7285a491 2004-06-17 devnull m = CputsuspRR(cd, what, 0);
214 7285a491 2004-06-17 devnull cp = ensurespace(cd, m, cp, &cn, dowrite);
215 7285a491 2004-06-17 devnull CputsuspRR(cd, what, dowrite);
217 7285a491 2004-06-17 devnull if(what & RR_PX) {
218 7285a491 2004-06-17 devnull m = CputrripPX(cd, d, dot, 0);
219 7285a491 2004-06-17 devnull cp = ensurespace(cd, m, cp, &cn, dowrite);
220 7285a491 2004-06-17 devnull CputrripPX(cd, d, dot, dowrite);
223 7285a491 2004-06-17 devnull if(what & RR_NM) {
224 7285a491 2004-06-17 devnull if(dot == DTiden)
225 7285a491 2004-06-17 devnull p = d->name;
226 7285a491 2004-06-17 devnull else if(dot == DTdotdot)
227 7285a491 2004-06-17 devnull p = "..";
229 7285a491 2004-06-17 devnull p = ".";
231 7285a491 2004-06-17 devnull flags = suspdirflags(d, dot);
232 7285a491 2004-06-17 devnull assert(dowrite==0 || cp != &co || Cwoffset(cd) == o+co.len-initlen);
233 7285a491 2004-06-17 devnull cp = Cputstring(cd, cp, &cn, "NM", p, flags, dowrite);
237 7285a491 2004-06-17 devnull * Put down the symbolic link. This is even more of a crock.
238 7285a491 2004-06-17 devnull * Not only are the individual elements potentially split,
239 7285a491 2004-06-17 devnull * but the whole path itself can be split across SL blocks.
240 7285a491 2004-06-17 devnull * To keep the code simple as possible (really), we write
241 7285a491 2004-06-17 devnull * only one element per SL block, wasting 6 bytes per element.
243 7285a491 2004-06-17 devnull if(what & RR_SL) {
244 7285a491 2004-06-17 devnull for(path=d->symlink; path[0] != '\0'; path=nextpath) {
245 7285a491 2004-06-17 devnull /* break off one component */
246 7285a491 2004-06-17 devnull if((nextpath = strchr(path, '/')) == nil)
247 7285a491 2004-06-17 devnull nextpath = path+strlen(path);
248 7285a491 2004-06-17 devnull strncpy(buf0, path, nextpath-path);
249 7285a491 2004-06-17 devnull buf0[nextpath-path] = '\0';
250 7285a491 2004-06-17 devnull if(nextpath[0] == '/')
251 7285a491 2004-06-17 devnull nextpath++;
252 7285a491 2004-06-17 devnull p = buf0;
254 7285a491 2004-06-17 devnull /* write the name, perhaps broken into pieces */
255 7285a491 2004-06-17 devnull if(strcmp(p, "") == 0)
256 7285a491 2004-06-17 devnull flags = NMroot;
257 7285a491 2004-06-17 devnull else if(strcmp(p, ".") == 0)
258 7285a491 2004-06-17 devnull flags = NMcurrent;
259 7285a491 2004-06-17 devnull else if(strcmp(p, "..") == 0)
260 7285a491 2004-06-17 devnull flags = NMparent;
262 7285a491 2004-06-17 devnull flags = 0;
264 7285a491 2004-06-17 devnull /* the do-while handles the empty string properly */
266 7285a491 2004-06-17 devnull /* must have room for at least 1 byte of name */
267 7285a491 2004-06-17 devnull cp = ensurespace(cd, 7+1, cp, &cn, dowrite);
268 7285a491 2004-06-17 devnull cp->len -= 7+1;
269 7285a491 2004-06-17 devnull free = freespace(cp);
270 7285a491 2004-06-17 devnull assert(7+1 <= free && free < 256);
272 7285a491 2004-06-17 devnull strncpy(buf, p, free-7);
273 7285a491 2004-06-17 devnull buf[free-7] = '\0';
274 7285a491 2004-06-17 devnull q = p+strlen(buf);
275 7285a491 2004-06-17 devnull p = buf;
277 7285a491 2004-06-17 devnull /* nil: better not need to expand */
278 7285a491 2004-06-17 devnull assert(7+strlen(p) <= free);
279 7285a491 2004-06-17 devnull ensurespace(cd, 7+strlen(p), cp, nil, dowrite);
280 7285a491 2004-06-17 devnull CputrripSL(cd, nextpath[0], flags | (q[0] ? NMcontinue : 0), p, dowrite);
282 7285a491 2004-06-17 devnull } while(p[0] != '\0');
286 7285a491 2004-06-17 devnull assert(dowrite==0 || cp != &co || Cwoffset(cd) == o+co.len-initlen);
288 7285a491 2004-06-17 devnull if(what & RR_TF) {
289 7285a491 2004-06-17 devnull m = CputrripTF(cd, d, TFcreation|TFmodify|TFaccess|TFattributes, 0);
290 7285a491 2004-06-17 devnull cp = ensurespace(cd, m, cp, &cn, dowrite);
291 7285a491 2004-06-17 devnull CputrripTF(cd, d, TFcreation|TFmodify|TFaccess|TFattributes, dowrite);
293 7285a491 2004-06-17 devnull assert(dowrite==0 || cp != &co || Cwoffset(cd) == o+co.len-initlen);
295 7285a491 2004-06-17 devnull if(cp == &cn && dowrite) {
296 7285a491 2004-06-17 devnull /* seek out of continuation, but mark our place */
297 7285a491 2004-06-17 devnull cd->rrcontin = Cwoffset(cd);
298 7285a491 2004-06-17 devnull setcelen(cd, cn.ceoffset, cn.len);
299 7285a491 2004-06-17 devnull Cwseek(cd, o+co.len-initlen);
302 7285a491 2004-06-17 devnull if(co.len & 1) {
303 7285a491 2004-06-17 devnull co.len++;
304 7285a491 2004-06-17 devnull if(dowrite)
305 7285a491 2004-06-17 devnull Cputc(cd, 0);
308 7285a491 2004-06-17 devnull if(dowrite) {
309 7285a491 2004-06-17 devnull if(Cwoffset(cd) != o+co.len-initlen)
310 7285a491 2004-06-17 devnull fprint(2, "offset %lud o+co.len-initlen %lud\n", Cwoffset(cd), o+co.len-initlen);
311 7285a491 2004-06-17 devnull assert(Cwoffset(cd) == o+co.len-initlen);
313 7285a491 2004-06-17 devnull assert(Cwoffset(cd) == o);
315 7285a491 2004-06-17 devnull assert(co.len <= 255);
316 7285a491 2004-06-17 devnull return co.len - initlen;
319 7285a491 2004-06-17 devnull static char SUSPrrip[10] = "RRIP_1991A";
320 7285a491 2004-06-17 devnull static char SUSPdesc[84] = "RRIP <more garbage here>";
321 7285a491 2004-06-17 devnull static char SUSPsrc[135] = "RRIP <more garbage here>";
323 7285a491 2004-06-17 devnull static ulong
324 7285a491 2004-06-17 devnull CputsuspCE(Cdimg *cd, ulong offset)
326 7285a491 2004-06-17 devnull ulong o, x;
328 7285a491 2004-06-17 devnull chat("writing SUSP CE record pointing to %ld, %ld\n", offset/Blocksize, offset%Blocksize);
329 7285a491 2004-06-17 devnull o = Cwoffset(cd);
330 7285a491 2004-06-17 devnull Cputc(cd, 'C');
331 7285a491 2004-06-17 devnull Cputc(cd, 'E');
332 7285a491 2004-06-17 devnull Cputc(cd, 28);
333 7285a491 2004-06-17 devnull Cputc(cd, 1);
334 7285a491 2004-06-17 devnull Cputn(cd, offset/Blocksize, 4);
335 7285a491 2004-06-17 devnull Cputn(cd, offset%Blocksize, 4);
336 7285a491 2004-06-17 devnull x = Cwoffset(cd);
337 7285a491 2004-06-17 devnull Cputn(cd, 0, 4);
338 7285a491 2004-06-17 devnull assert(Cwoffset(cd) == o+28);
340 7285a491 2004-06-17 devnull return x;
343 7285a491 2004-06-17 devnull static int
344 7285a491 2004-06-17 devnull CputsuspER(Cdimg *cd, int dowrite)
346 7285a491 2004-06-17 devnull assert(cd != nil);
348 7285a491 2004-06-17 devnull if(dowrite) {
349 7285a491 2004-06-17 devnull chat("writing SUSP ER record\n");
350 7285a491 2004-06-17 devnull Cputc(cd, 'E'); /* ER field marker */
351 7285a491 2004-06-17 devnull Cputc(cd, 'R');
352 7285a491 2004-06-17 devnull Cputc(cd, 26); /* Length */
353 7285a491 2004-06-17 devnull Cputc(cd, 1); /* Version */
354 7285a491 2004-06-17 devnull Cputc(cd, 10); /* LEN_ID */
355 7285a491 2004-06-17 devnull Cputc(cd, 4); /* LEN_DESC */
356 7285a491 2004-06-17 devnull Cputc(cd, 4); /* LEN_SRC */
357 7285a491 2004-06-17 devnull Cputc(cd, 1); /* EXT_VER */
358 7285a491 2004-06-17 devnull Cputs(cd, SUSPrrip, 10); /* EXT_ID */
359 7285a491 2004-06-17 devnull Cputs(cd, SUSPdesc, 4); /* EXT_DESC */
360 7285a491 2004-06-17 devnull Cputs(cd, SUSPsrc, 4); /* EXT_SRC */
362 7285a491 2004-06-17 devnull return 8+10+4+4;
365 7285a491 2004-06-17 devnull static int
366 7285a491 2004-06-17 devnull CputsuspRR(Cdimg *cd, int what, int dowrite)
368 7285a491 2004-06-17 devnull assert(cd != nil);
370 7285a491 2004-06-17 devnull if(dowrite) {
371 7285a491 2004-06-17 devnull Cputc(cd, 'R'); /* RR field marker */
372 7285a491 2004-06-17 devnull Cputc(cd, 'R');
373 7285a491 2004-06-17 devnull Cputc(cd, 5); /* Length */
374 7285a491 2004-06-17 devnull Cputc(cd, 1); /* Version number */
375 7285a491 2004-06-17 devnull Cputc(cd, what); /* Flags */
377 7285a491 2004-06-17 devnull return 5;
380 7285a491 2004-06-17 devnull static int
381 7285a491 2004-06-17 devnull CputsuspSP(Cdimg *cd, int dowrite)
383 7285a491 2004-06-17 devnull assert(cd!=0);
385 7285a491 2004-06-17 devnull if(dowrite) {
386 7285a491 2004-06-17 devnull chat("writing SUSP SP record\n");
387 7285a491 2004-06-17 devnull Cputc(cd, 'S'); /* SP field marker */
388 7285a491 2004-06-17 devnull Cputc(cd, 'P');
389 7285a491 2004-06-17 devnull Cputc(cd, 7); /* Length */
390 7285a491 2004-06-17 devnull Cputc(cd, 1); /* Version */
391 7285a491 2004-06-17 devnull Cputc(cd, 0xBE); /* Magic */
392 7285a491 2004-06-17 devnull Cputc(cd, 0xEF);
393 7285a491 2004-06-17 devnull Cputc(cd, 0);
396 7285a491 2004-06-17 devnull return 7;
399 7285a491 2004-06-17 devnull #ifdef NOTUSED
400 7285a491 2004-06-17 devnull static int
401 7285a491 2004-06-17 devnull CputsuspST(Cdimg *cd, int dowrite)
403 7285a491 2004-06-17 devnull assert(cd!=0);
405 7285a491 2004-06-17 devnull if(dowrite) {
406 7285a491 2004-06-17 devnull Cputc(cd, 'S'); /* ST field marker */
407 7285a491 2004-06-17 devnull Cputc(cd, 'T');
408 7285a491 2004-06-17 devnull Cputc(cd, 4); /* Length */
409 7285a491 2004-06-17 devnull Cputc(cd, 1); /* Version */
411 7285a491 2004-06-17 devnull return 4;
415 7285a491 2004-06-17 devnull static ulong
416 7285a491 2004-06-17 devnull suspdirflags(Direc *d, int dot)
418 7285a491 2004-06-17 devnull uchar flags;
420 7285a491 2004-06-17 devnull USED(d);
421 7285a491 2004-06-17 devnull flags = 0;
422 7285a491 2004-06-17 devnull switch(dot) {
423 7285a491 2004-06-17 devnull default:
424 7285a491 2004-06-17 devnull assert(0);
425 7285a491 2004-06-17 devnull case DTdot:
426 7285a491 2004-06-17 devnull case DTrootdot:
427 7285a491 2004-06-17 devnull flags |= NMcurrent;
429 7285a491 2004-06-17 devnull case DTdotdot:
430 7285a491 2004-06-17 devnull flags |= NMparent;
432 7285a491 2004-06-17 devnull case DTroot:
433 7285a491 2004-06-17 devnull flags |= NMvolroot;
435 7285a491 2004-06-17 devnull case DTiden:
438 7285a491 2004-06-17 devnull return flags;
441 7285a491 2004-06-17 devnull static int
442 7285a491 2004-06-17 devnull Cputrripname(Cdimg *cd, char *nm, int flags, char *name, int dowrite)
446 7285a491 2004-06-17 devnull l = strlen(name);
447 7285a491 2004-06-17 devnull if(dowrite) {
448 7285a491 2004-06-17 devnull Cputc(cd, nm[0]); /* NM field marker */
449 7285a491 2004-06-17 devnull Cputc(cd, nm[1]);
450 7285a491 2004-06-17 devnull Cputc(cd, l+5); /* Length */
451 7285a491 2004-06-17 devnull Cputc(cd, 1); /* Version */
452 7285a491 2004-06-17 devnull Cputc(cd, flags); /* Flags */
453 7285a491 2004-06-17 devnull Cputs(cd, name, l); /* Alternate name */
455 7285a491 2004-06-17 devnull return 5+l;
458 7285a491 2004-06-17 devnull static int
459 7285a491 2004-06-17 devnull CputrripSL(Cdimg *cd, int contin, int flags, char *name, int dowrite)
463 7285a491 2004-06-17 devnull l = strlen(name);
464 7285a491 2004-06-17 devnull if(dowrite) {
465 7285a491 2004-06-17 devnull Cputc(cd, 'S');
466 7285a491 2004-06-17 devnull Cputc(cd, 'L');
467 7285a491 2004-06-17 devnull Cputc(cd, l+7);
468 7285a491 2004-06-17 devnull Cputc(cd, 1);
469 7285a491 2004-06-17 devnull Cputc(cd, contin ? 1 : 0);
470 7285a491 2004-06-17 devnull Cputc(cd, flags);
471 7285a491 2004-06-17 devnull Cputc(cd, l);
472 7285a491 2004-06-17 devnull Cputs(cd, name, l);
474 7285a491 2004-06-17 devnull return 7+l;
477 7285a491 2004-06-17 devnull static int
478 7285a491 2004-06-17 devnull CputrripPX(Cdimg *cd, Direc *d, int dot, int dowrite)
480 7285a491 2004-06-17 devnull assert(cd!=0);
482 7285a491 2004-06-17 devnull if(dowrite) {
483 7285a491 2004-06-17 devnull Cputc(cd, 'P'); /* PX field marker */
484 7285a491 2004-06-17 devnull Cputc(cd, 'X');
485 7285a491 2004-06-17 devnull Cputc(cd, 36); /* Length */
486 7285a491 2004-06-17 devnull Cputc(cd, 1); /* Version */
488 7285a491 2004-06-17 devnull Cputn(cd, mode(d, dot), 4); /* POSIX File mode */
489 7285a491 2004-06-17 devnull Cputn(cd, nlink(d), 4); /* POSIX st_nlink */
490 7285a491 2004-06-17 devnull Cputn(cd, d?d->uidno:0, 4); /* POSIX st_uid */
491 7285a491 2004-06-17 devnull Cputn(cd, d?d->gidno:0, 4); /* POSIX st_gid */
494 7285a491 2004-06-17 devnull return 36;
497 7285a491 2004-06-17 devnull static int
498 7285a491 2004-06-17 devnull CputrripTF(Cdimg *cd, Direc *d, int type, int dowrite)
500 7285a491 2004-06-17 devnull int i, length;
502 7285a491 2004-06-17 devnull assert(cd!=0);
503 7285a491 2004-06-17 devnull assert(!(type & TFlongform));
505 7285a491 2004-06-17 devnull length = 0;
506 7285a491 2004-06-17 devnull for(i=0; i<7; i++)
507 7285a491 2004-06-17 devnull if (type & (1<<i))
508 7285a491 2004-06-17 devnull length++;
509 7285a491 2004-06-17 devnull assert(length == 4);
511 7285a491 2004-06-17 devnull if(dowrite) {
512 7285a491 2004-06-17 devnull Cputc(cd, 'T'); /* TF field marker */
513 7285a491 2004-06-17 devnull Cputc(cd, 'F');
514 7285a491 2004-06-17 devnull Cputc(cd, 5+7*length); /* Length */
515 7285a491 2004-06-17 devnull Cputc(cd, 1); /* Version */
516 7285a491 2004-06-17 devnull Cputc(cd, type); /* Flags (types) */
518 7285a491 2004-06-17 devnull if (type & TFcreation)
519 7285a491 2004-06-17 devnull Cputdate(cd, d?d->ctime:0);
520 7285a491 2004-06-17 devnull if (type & TFmodify)
521 7285a491 2004-06-17 devnull Cputdate(cd, d?d->mtime:0);
522 7285a491 2004-06-17 devnull if (type & TFaccess)
523 7285a491 2004-06-17 devnull Cputdate(cd, d?d->atime:0);
524 7285a491 2004-06-17 devnull if (type & TFattributes)
525 7285a491 2004-06-17 devnull Cputdate(cd, d?d->ctime:0);
527 cbeb0b26 2006-04-01 devnull /* if (type & TFbackup) */
528 cbeb0b26 2006-04-01 devnull /* Cputdate(cd, 0); */
529 cbeb0b26 2006-04-01 devnull /* if (type & TFexpiration) */
530 cbeb0b26 2006-04-01 devnull /* Cputdate(cd, 0); */
531 cbeb0b26 2006-04-01 devnull /* if (type & TFeffective) */
532 cbeb0b26 2006-04-01 devnull /* Cputdate(cd, 0); */
534 7285a491 2004-06-17 devnull return 5+7*length;
538 7285a491 2004-06-17 devnull #define NONPXMODES (DMDIR & DMAPPEND & DMEXCL & DMMOUNT)
539 7285a491 2004-06-17 devnull #define POSIXMODEMASK (0177777)
540 7285a491 2004-06-17 devnull #ifndef S_IFMT
541 7285a491 2004-06-17 devnull #define S_IFMT (0170000)
543 7285a491 2004-06-17 devnull #ifndef S_IFDIR
544 7285a491 2004-06-17 devnull #define S_IFDIR (0040000)
546 7285a491 2004-06-17 devnull #ifndef S_IFREG
547 7285a491 2004-06-17 devnull #define S_IFREG (0100000)
549 7285a491 2004-06-17 devnull #ifndef S_IFLNK
550 7285a491 2004-06-17 devnull #define S_IFLNK (0120000)
552 7285a491 2004-06-17 devnull #undef ISTYPE
553 7285a491 2004-06-17 devnull #define ISTYPE(mode, mask) (((mode) & S_IFMT) == (mask))
554 7285a491 2004-06-17 devnull #ifndef S_ISDIR
555 7285a491 2004-06-17 devnull #define S_ISDIR(mode) ISTYPE(mode, S_IFDIR)
557 7285a491 2004-06-17 devnull #ifndef S_ISREG
558 7285a491 2004-06-17 devnull #define S_ISREG(mode) ISTYPE(mode, S_IREG)
560 7285a491 2004-06-17 devnull #ifndef S_ISLNK
561 7285a491 2004-06-17 devnull #define S_ISLNK(mode) ISTYPE(mode, S_ILNK)
565 7285a491 2004-06-17 devnull static long
566 7285a491 2004-06-17 devnull mode(Direc *d, int dot)
568 7285a491 2004-06-17 devnull long mode;
571 7285a491 2004-06-17 devnull return 0;
573 7285a491 2004-06-17 devnull if ((dot != DTroot) && (dot != DTrootdot)) {
574 7285a491 2004-06-17 devnull mode = (d->mode & ~(NONPXMODES));
575 7285a491 2004-06-17 devnull if (d->mode & DMDIR)
576 7285a491 2004-06-17 devnull mode |= S_IFDIR;
577 7285a491 2004-06-17 devnull else if (d->mode & CHLINK)
578 7285a491 2004-06-17 devnull mode |= S_IFLNK;
580 7285a491 2004-06-17 devnull mode |= S_IFREG;
582 7285a491 2004-06-17 devnull mode = S_IFDIR | (0755);
584 7285a491 2004-06-17 devnull mode &= POSIXMODEMASK;
586 7285a491 2004-06-17 devnull /* Botch: not all POSIX types supported yet */
587 7285a491 2004-06-17 devnull assert(mode & (S_IFDIR|S_IFREG));
589 7285a491 2004-06-17 devnull chat("writing PX record mode field %ulo with dot %d and name \"%s\"\n", mode, dot, d->name);
591 7285a491 2004-06-17 devnull return mode;
594 7285a491 2004-06-17 devnull static long
595 7285a491 2004-06-17 devnull nlink(Direc *d) /* Trump up the nlink field for POSIX compliance */
601 7285a491 2004-06-17 devnull return 0;
604 7285a491 2004-06-17 devnull if (d->mode & DMDIR) /* One for "." and one more for ".." */
607 7285a491 2004-06-17 devnull for(i=0; i<d->nchild; i++)
608 7285a491 2004-06-17 devnull if (d->child[i].mode & DMDIR)
611 7285a491 2004-06-17 devnull return n;
