2 #define _FILE_OFFSET_BITS 64
18 #include <sys/ioctl.h>
26 #include <dvdread/dvd_reader.h>
27 #include <dvdread/dvd_udf.h>
28 #include <dvdread/ifo_read.h>
29 #include <dvdread/ifo_types.h>
31 #define CTYPE_HACK(fn, ch) fn((unsigned char)(ch))
32 #define ISDIGIT(ch) CTYPE_HACK(isdigit, ch)
33 #define ISSPACE(ch) CTYPE_HACK(isspace, ch)
41 #define N(v) (sizeof(v)/sizeof((v)[0]))
44 #define SECTORS(n) (((n) + (SECTORSZ - 1))/SECTORSZ)
46 static const char *prog = "<unset>";
47 static int status = 0;
49 static void usage(FILE *fp)
52 "usage: %s [-c] [-R MAP] [-b OUTMAP] [-r [START]-[END]]\n"
57 static void vmoan(const char *fmt, va_list ap)
58 { fprintf(stderr, "%s: ", prog); vfprintf(stderr, fmt, ap); }
60 __attribute__((format(printf, 1, 2)))
61 static void moan(const char *fmt, ...)
65 va_start(ap, fmt); vmoan(fmt, ap); va_end(ap);
69 __attribute__((noreturn, format(printf, 1, 2)))
70 static void bail(const char *fmt, ...)
74 va_start(ap, fmt); vmoan(fmt, ap); va_end(ap);
79 __attribute__((noreturn, format(printf, 2, 3)))
80 static void bail_syserr(int err, const char *fmt, ...)
84 va_start(ap, fmt); vmoan(fmt, ap); va_end(ap);
85 if (err) fprintf(stderr, ": %s", strerror(errno));
90 static void carefully_write(int fd, const void *buf, size_t sz)
92 const unsigned char *p = buf;
99 if (errno == EINTR) continue;
100 bail_syserr(errno, "failed to write to output file");
102 if (!n) bail("unexpected short write to output file");
107 static void open_file_on_demand(const char *file, FILE **fp_inout,
113 fp = fopen(file, "w");
115 bail_syserr(errno, "failed to open %s file `%s'", what, file);
116 fprintf(fp, "## %s\n\n", what);
121 static void check_write(FILE *fp, const char *what)
124 if (ferror(fp)) bail_syserr(errno, "error writing %s file", what);
127 static void carefully_fclose(FILE *fp, const char *what)
129 if (fp && (ferror(fp) || fclose(fp)))
130 bail_syserr(errno, "error writing %s file", what);
133 #define DEFVEC(vtype, etype) \
134 typedef struct { etype *v; size_t n, sz; } vtype
135 #define VEC_INIT { 0, 0, 0 }
136 #define VEC_FREE(vv) do { \
137 free((vv)->v); (vv)->v 0; (vv)->n = (vv)->sz = 0; \
139 #define VEC_PUSH(p, vv) do { \
141 if ((vv)->n >= (vv)->sz) { \
142 (vv)->sz = (vv)->sz ? 2*(vv)->sz : 32; \
143 _want = (vv)->sz*sizeof(*(vv)->v); \
144 (vv)->v = realloc((vv)->v, _want); \
145 if (!(vv)->v) bail("out of memory allocating %zu bytes", _want); \
147 (p) = &(vv)->v[(vv)->n++]; \
150 enum { RAW, IFO, VOB, BUP };
151 typedef uint_least32_t ident;
153 static inline ident mkident(unsigned kind, unsigned title, unsigned part)
154 { return (((ident)kind << 0) | ((ident)title << 8) | ((ident)part << 16)); }
155 static inline unsigned id_kind(ident id) { return ((id >> 0)&0x0ff); }
156 static inline unsigned id_title(ident id) { return ((id >> 8)&0x0ff); }
157 static inline unsigned id_part(ident id) { return ((id >> 16)&0x0ff); }
159 #define MAXFNSZ (1 + 8 + 1 + 12 + 1)
161 static void store_filename(char *buf, ident id)
163 switch (id_kind(id)) {
165 sprintf(buf, "#<raw device>");
168 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.IFO");
169 else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.IFO", id_title(id));
172 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.BUP");
173 else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.BUP", id_title(id));
176 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.VOB");
178 sprintf(buf, "/VIDEO_TS/VTS_%02u_%u.VOB", id_title(id), id_part(id));
185 typedef uint_least32_t secaddr;
186 #define PRIuSEC PRIuLEAST32
187 #define SECLIMIT 0x00400000
189 #define MAXFILES (1 + 2*99 + 1)
194 DEFVEC(file_v, struct file);
195 static file_v filetab = VEC_INIT;
197 enum { EV_STOP, EV_BEGIN, EV_END, EV_WRITE };
199 unsigned char ev, file;
202 DEFVEC(event_v, struct event);
203 static event_v eventq = VEC_INIT;
205 static int compare_event(const void *a, const void *b)
207 const struct event *eva = a, *evb = b;
209 if (eva->pos < evb->pos) return (-1);
210 else if (eva->pos > evb->pos) return (+1);
212 if (eva->ev < evb->ev) return (-1);
213 else if (eva->ev > evb->ev) return (+1);
215 if (eva->file < evb->file) return (-1);
216 else if (eva->file > evb->file) return (+1);
221 typedef uint_least32_t bits;
222 static bits live[(MAXFILES + 31)/32];
224 static inline int livep(unsigned i)
225 { return (live[i/32]&((bits)1 << (i%32))); }
226 static inline void set_live(unsigned i)
227 { live[i/32] |= (bits)1 << (i%32); }
228 static inline void clear_live(unsigned i)
229 { live[i/32] &= ~((bits)1 << (i%32)); }
230 static inline int least_live(void)
232 unsigned i, n = (filetab.n + 32)/32;
235 for (i = 0; i < n; i++) { b = live[i]; if (b) goto found; }
239 if (!(b&0x0000ffff)) { b >>= 16; i += 16; }
240 if (!(b&0x000000ff)) { b >>= 8; i += 8; }
241 if (!(b&0x0000000f)) { b >>= 4; i += 4; }
242 if (!(b&0x00000003)) { b >>= 2; i += 2; }
243 if (!(b&0x00000001)) { b >>= 1; i += 1; }
248 static void put_event(unsigned evtype, unsigned file, secaddr pos)
252 VEC_PUSH(ev, &eventq);
253 ev->ev = evtype; ev->file = file; ev->pos = pos;
256 static void put_file(ident id, secaddr start, secaddr end)
261 VEC_PUSH(f, &filetab); i = f - filetab.v;
262 f->id = id; f->start = start; f->end = end;
263 put_event(EV_BEGIN, i, start);
264 put_event(EV_END, i, end);
267 static void put_menu(dvd_reader_t *dvd, unsigned title)
269 ident id = mkident(VOB, title, 0);
273 store_filename(fn, id);
274 start = UDFFindFile(dvd, fn, &len); if (!start) return;
276 printf(";; %8"PRIuSEC" .. %-8"PRIuSEC": %s\n",
277 start, start + SECTORS(len), fn);
279 put_file(id, start, start + SECTORS(len));
282 static void put_title(dvd_reader_t *dvd, unsigned title)
285 secaddr start[9], len[9];
288 for (i = 0; i < 9; i++) {
289 store_filename(fn, mkident(VOB, title, i + 1));
290 start[i] = UDFFindFile(dvd, fn, &len[i]); if (!start[i]) break;
292 npart = i; if (!npart) return;
295 for (i = 0; i < npart; i++) {
296 store_filename(fn, mkident(VOB, title, i + 1));
297 printf(";; %8"PRIuSEC" .. %-8"PRIuSEC": %s\n",
298 start[i], start[i] + SECTORS(len[i]), fn);
303 for (i = 0; i < npart - 1; i++) {
305 bail("title %u part %u length = %"PRIuSEC" not a multiple of %d",
306 title, i, len[i], SECTORSZ);
307 if (start[i] + len[i]/SECTORSZ != start[i + 1])
309 ("title %u part %u end = %"PRIuSEC" /= part %u start = %"PRIuSEC"",
310 title, i, start[i] + len[i]/SECTORSZ, i + 1, start[i + 1]);
313 put_file(mkident(VOB, title, 1),
314 start[0], start[npart - 1] + SECTORS(len[npart - 1]));
317 static int progresslen = 0;
319 static void clear_progress_internal(void)
321 while (progresslen) { fputs("\b \b", stdout); progresslen--; }
324 static void clear_progress(void)
325 { clear_progress_internal(); fflush(stdout); }
327 static void debug_clear_progress(void)
328 { if (progresslen) { putchar('\n'); progresslen = 0; } }
330 static void vappend_progress(const char *fmt, va_list ap)
331 { progresslen += vprintf(fmt, ap); }
332 __attribute__((format(printf, 1, 2)))
333 static void append_progress(const char *fmt, ...)
338 vappend_progress(fmt, ap);
341 __attribute__((format(printf, 1, 2)))
342 static void print_progress(const char *fmt, ...)
347 clear_progress_internal();
348 vappend_progress(fmt, ap);
353 # define F_ALLPROGRESS 1u
354 static secaddr last_pos, limit, nsectors, ndone;
355 static struct timeval last_time;
356 static double wsum, wcount;
357 static struct file *file;
359 static void report_progress(secaddr pos)
364 double percent, t, f, g, rate;
368 #define BETA (1 - ALPHA)
370 gettimeofday(&now, 0);
371 t = (now.tv_sec - last_time.tv_sec) +
372 (now.tv_usec - last_time.tv_usec)/1000000.0;
375 g = wcount ? pow(BETA, t) : 0.0; f = (1 - g)/(1 - BETA);
376 wsum = f*(pos - last_pos)/t + g*wsum;
377 wcount = f + g*wcount;
378 ndone += pos - last_pos;
379 last_time = now; last_pos = pos;
382 if (!wsum || !wcount)
383 { rate = 0; strcpy(etastr, "???"); }
386 eta = (int)((nsectors - ndone)/rate);
387 sprintf(etastr, "%d:%02d:%02d", eta/3600, (eta/60)%60, eta%60);
390 rate *= SECTORSZ; unit = "";
391 if (rate > 128) { rate /= 1024; unit = "k"; }
392 if (rate > 128) { rate /= 1024; unit = "M"; }
393 if (rate > 128) { rate /= 1024; unit = "G"; }
395 if (flags&F_ALLPROGRESS) percent = pos*100.0/limit;
396 else percent = ndone*100.0/nsectors;
398 ("copied %.1f%% (%"PRIuSEC" of %"PRIuSEC"; %.1f %sB/s, ETA %s)",
399 percent, pos, limit, rate, unit, etastr);
400 if (file && id_kind(file->id) == VOB) {
401 append_progress(" -- %s %d %.1f%%",
402 id_part(file->id) ? "title" : "menu",
404 (pos - file->start)*100.0/
405 (file->end - file->start));
412 static dvd_reader_t *dvd;
413 static int dvdfd = -1, outfd = -1;
414 static dvd_file_t *vob;
415 static const char *mapfile; static FILE *mapfp;
416 static const char *errfile; static FILE *errfp;
418 struct badblock { secaddr start, end; };
419 DEFVEC(badblock_v, struct badblock);
420 static badblock_v badblocks = VEC_INIT;
422 static int compare_badblock(const void *a, const void *b)
424 const struct badblock *ba = a, *bb = b;
426 if (ba->start < bb->start) return (-1);
427 else if (ba->start > bb->start) return (+1);
429 if (ba->end < bb->end) return (-1);
430 else if (ba->end > bb->end) return (+1);
435 static ssize_t read_sectors(secaddr pos, void *buf, secaddr want)
440 struct badblock *bad, *best;
441 unsigned char *p = buf;
444 best = 0; lo = 0; hi = badblocks.n;
446 debug_clear_progress();
447 printf(";; searching badblocks for %"PRIuSEC" .. %"PRIuSEC"\n",
451 mid = lo + (hi - lo)/2; bad = &badblocks.v[mid];
453 printf(";; try %zu (%"PRIuSEC" .. %"PRIuSEC")... ",
454 mid, bad->start, bad->end);
456 if (pos < bad->start) { D( printf("high\n"); ) best = bad; hi = mid; }
457 else if (pos >= bad->end) { D( printf("low\n"); ) lo = mid + 1; }
458 else { D( printf("match!\n"); ) errno = EIO; return (-1); }
462 printf(";; next is %"PRIuSEC" .. %"PRIuSEC"\n",
463 best->start, best->end);
465 if (best && pos + want > best->start)
466 { want = best->start - pos; fakeerr = EIO; }
471 { errno = 0; n = DVDReadBlocks(vob, pos - file->start, want, p); }
473 if (lseek(dvdfd, (off_t)pos*SECTORSZ, SEEK_SET) < 0)
474 bail_syserr(errno, "failed to seek to sector %"PRIuSEC"", pos);
475 errno = 0; n = read(dvdfd, p, want*SECTORSZ);
476 if (n >= 0) n /= SECTORSZ;
478 memset(p, 0, want*SECTORSZ);
482 if (n > 0) { done += n; pos += n; p += n*SECTORSZ; want -= n; }
484 else if (errno == EIO && errfile) {
485 open_file_on_demand(errfile, &errfp, "bad-sector error log");
486 fprintf(errfp, "%"PRIuSEC" %"PRIuSEC"\n", pos, pos + 1);
487 check_write(errfp, "bad-sector error log");
489 } else if (errno != EINTR) break;
491 if (fakeerr && !errno) errno = fakeerr;
492 return (!done && errno ? -1 : done);
495 static void report_bad_blocks_progress(secaddr lo, secaddr hi, int err)
499 if (lo == hi) append_progress(": retrying bad sector");
501 append_progress(": %"PRIuSEC" bad %s",
502 hi - lo, hi == lo + 1 ? "sector" : "sectors");
503 if (err && err != EIO) append_progress(" (%s)", strerror(err));
507 static void recovered(secaddr bad_lo, secaddr bad_hi)
510 moan("skipping %"PRIuSEC" bad sectors (%"PRIuSEC" .. %"PRIuSEC")",
511 bad_hi - bad_lo, bad_lo, bad_hi);
513 open_file_on_demand(mapfile, &mapfp, "bad-sector region map");
514 fprintf(mapfp, "%"PRIuSEC" %"PRIuSEC"", bad_lo, bad_hi);
516 fprintf(mapfp, " # %s #%d %"PRIuSEC"..%"PRIuSEC" of %"PRIuSEC" (%.1f%%)",
517 id_part(file->id) ? "title" : "menu",
519 bad_lo - file->start, bad_hi - file->start,
520 file->end - file->start,
521 (bad_lo - file->start)*100.0/(file->end - file->start));
523 check_write(mapfp, "bad-sector region map");
525 if (lseek(outfd, (off_t)(bad_hi - bad_lo)*SECTORSZ, SEEK_CUR) < 0)
526 bail_syserr(errno, "failed to seek past bad sectors");
532 secaddr sz, pos, start, end;
535 static void rearrange_sectors(struct recoverybuf *r,
536 secaddr dest, secaddr src, secaddr len)
538 assert(dest + len <= r->sz);
539 assert(src + len <= r->sz);
540 memmove(r->buf + dest*SECTORSZ, r->buf + src*SECTORSZ, len*SECTORSZ);
544 __attribute__((format(printf, 2, 3)))
545 static void show_recovery_buffer_map(const struct recoverybuf *r,
546 const char *what, ...)
551 debug_clear_progress();
552 printf(";; recovery buffer (");
555 "(%"PRIuSEC") ..%"PRIuSEC".. "
556 "[%"PRIuSEC" ..%"PRIuSEC".. %"PRIuSEC"] "
557 "..%"PRIuSEC".. (%"PRIuSEC")\n",
559 r->pos + r->start, r->end - r->start, r->pos + r->end,
560 r->sz - r->end, r->pos + r->sz);
562 assert(r->start <= r->end);
563 assert(r->end <= r->sz);
567 static ssize_t recovery_read_sectors(struct recoverybuf *r,
568 secaddr pos, secaddr off, secaddr want)
572 assert(off <= r->sz); assert(want <= r->sz - off);
573 n = read_sectors(pos, r->buf + off*SECTORSZ, want);
577 static ssize_t recovery_read(struct recoverybuf *r,
578 secaddr pos, secaddr want)
580 secaddr diff, pp, nn;
584 debug_clear_progress();
585 show_recovery_buffer_map(r, "begin(%"PRIuSEC", %"PRIuSEC")", pos, want);
590 if (r->start + diff >= r->sz) {
591 r->pos = pos; r->start = r->end = 0;
593 show_recovery_buffer_map(r, "cleared; shift up by %"PRIuSEC"", diff);
596 if (r->end + diff > r->sz) r->end = r->sz - diff;
597 rearrange_sectors(r, r->start + diff, r->start, r->end - r->start);
598 r->pos -= diff; r->start += diff; r->end += diff;
600 show_recovery_buffer_map(r, "shifted up by %"PRIuSEC"", diff);
603 } else if (pos > r->pos + r->end) {
604 r->pos = pos; r->start = r->end = 0;
606 show_recovery_buffer_map(r, "cleared; beyond previous region");
608 } else if (pos + want > r->pos + r->sz) {
609 diff = (pos + want) - (r->pos + r->sz);
610 if (r->end <= diff) {
611 r->pos = pos; r->start = r->end = 0;
613 show_recovery_buffer_map(r, "cleared; shift down by %"PRIuSEC"", diff);
616 if (r->start < diff) r->start = diff;
617 rearrange_sectors(r, r->start - diff, r->start, r->end - r->start);
618 r->pos += diff; r->start -= diff; r->end -= diff;
620 show_recovery_buffer_map(r, "shifted down by %"PRIuSEC"", diff);
625 if (pos < r->pos + r->start) {
626 pp = pos - r->pos; nn = r->start - pp;
628 printf(";; read low (%"PRIuSEC"@%"PRIuSEC", %"PRIuSEC")", pos, pp, nn);
631 n = recovery_read_sectors(r, pos, pp, nn);
633 printf(" -> %zd\n", n);
636 if (n >= 0 && n > want) n = want;
641 show_recovery_buffer_map(r, "joined new region");
645 if (pos + want > r->pos + r->end) {
646 pp = r->end; nn = (pos + want) - (r->pos + r->end);
648 printf(";; read high (%"PRIuSEC"@%"PRIuSEC", %"PRIuSEC")",
649 r->pos + pp, pp, nn);
652 n = recovery_read_sectors(r, r->pos + pp, pp, nn);
654 printf(" -> %zd\n", n);
659 show_recovery_buffer_map(r, "joined new region");
664 n = r->pos + r->end - pos;
665 if (!n && want) n = -1;
669 show_recovery_buffer_map(r, "done; return %zd", n);
674 static secaddr run_length_wanted(secaddr pos, secaddr badlen,
675 secaddr sz, secaddr end)
681 if (want > end - pos) want = end - pos;
682 if (want > sz) want = sz;
686 static ssize_t find_good_sector(secaddr *pos_inout, secaddr end,
687 unsigned char *buf, secaddr sz)
690 secaddr pos = *pos_inout, bad_lo, bad_hi, good, step, want;
691 struct recoverybuf r;
694 r.buf = buf; r.sz = sz; r.pos = r.start = r.end = 0;
695 report_bad_blocks_progress(pos, pos, errno);
697 want = sz; if (want > end - pos) want = end - pos;
698 for (i = 0; i < 4; i++) {
699 n = recovery_read(&r, pos, want);
701 debug_clear_progress();
702 printf(";; [retry] try reading %"PRIuSEC" .. %"PRIuSEC" -> %zd\n",
707 moan("sector %"PRIuSEC" read ok after retry", pos);
712 bad_lo = pos; bad_hi = pos + 1;
714 report_bad_blocks_progress(bad_lo, bad_hi, errno);
717 moan("giving up on this extent");
718 recovered(bad_lo, end); *pos_inout = end; return (0);
720 step = 2*(bad_hi - bad_lo); if (step > end - bad_lo) step = end - bad_lo;
721 pos = bad_lo + step - 1;
722 want = run_length_wanted(pos, step, sz, end);
723 n = recovery_read(&r, pos, want);
725 debug_clear_progress();
726 printf(";; [bound] try reading %"PRIuSEC" .. %"PRIuSEC" -> %zd\n",
729 if (n == want) break;
731 bad_hi = pos + n + 1;
735 while (good > bad_hi) {
736 report_bad_blocks_progress(bad_lo, bad_hi, errno);
737 pos = bad_hi + (good - bad_hi)/2;
739 want = run_length_wanted(pos, step, sz, end);
740 n = recovery_read(&r, pos, want);
742 debug_clear_progress();
743 printf(";; [limit] try reading %"PRIuSEC" .. %"PRIuSEC" -> %zd\n",
747 if (n == want) good = pos;
748 else bad_hi = pos + n + 1;
750 recovered(bad_lo, bad_hi); *pos_inout = good;
751 if (good < r.pos + r.start || r.pos + r.end <= good)
754 n = r.pos + r.end - good;
755 rearrange_sectors(&r, 0, good - r.pos, n);
758 show_recovery_buffer_map(&r, "returning %zd good sectors at %"PRIuSEC"",
764 static void emit(secaddr start, secaddr end)
766 #define BUFSECTORS 512
769 unsigned char buf[BUFSECTORS*SECTORSZ];
773 static int first_time = 1;
781 least = least_live();
784 printf(";; %8"PRIuSEC" .. %"PRIuSEC"\n", start, end);
786 for (i = 0; i < filetab.n; i++) {
787 if (!livep(i)) continue;
788 if (act == -1) act = i;
789 f = &filetab.v[i]; store_filename(fn, f->id);
790 printf(";;\t\t%8"PRIuSEC" .. %-8"PRIuSEC" %s\n",
791 start - f->start, end - f->start, fn);
793 if (act == -1) printf(";;\t\t#<no live source>\n");
794 assert(act == least);
798 { file = 0; vob = 0; }
800 file = &filetab.v[least];
801 switch (id_kind(file->id)) {
806 if (first_time) { clear_progress(); first_time = 0; }
807 vob = DVDOpenFile(dvd, id_title(file->id),
809 ? DVD_READ_TITLE_VOBS
810 : DVD_READ_MENU_VOBS);
812 bail("failed to open %s %u",
813 id_part(file->id) ? "title" : "menu",
823 want = end - pos; if (want > BUFSECTORS) want = BUFSECTORS;
824 n = read_sectors(pos, buf, want);
826 if (n <= 0) n = find_good_sector(&pos, end, buf, BUFSECTORS);
827 if (n > 0) { carefully_write(outfd, buf, n*SECTORSZ); pos += n; }
828 report_progress(pos); fflush(stdout);
831 if (vob) { DVDCloseFile(vob); vob = 0; }
837 static void logfn(void *p, dvd_logger_level_t lev,
838 const char *fmt, va_list ap)
841 case DVD_LOGGER_LEVEL_ERROR:
842 fprintf("%s (libdvdread error): ", prog);
844 case DVD_LOGGER_LEVEL_WARN:
845 fprintf("%s (libdvdread warning): ", prog);
850 vfprintf(stderr, fmt, ap);
853 static const dvd_logger_cb logger = { logfn };
860 #define BUF_INIT { 0, 0, 0 }
861 #define BUF_REWIND(b) do { (b)->n = 0; } while (0)
862 #define BUF_FREE(b) do { \
864 free(_b->p); _b->p = 0; _b->n = _b->sz = 0; \
866 #define BUF_PUTC(b, ch) do { \
867 struct buf *_b = (b); \
868 if (_b->n >= _b->sz) { \
869 _b->sz = _b->sz ? 2*_b->sz : 32; \
870 _b->p = realloc(_b->p, _b->sz); \
871 if (!_b->p) bail("out of memory allocating %zu bytes", _b->sz); \
873 _b->p[_b->n] = (ch); \
876 static int read_line(FILE *fp, struct buf *b)
883 else if (ch != '\n') do {
884 BUF_PUTC(b, ch); b->n++;
886 } while (ch != EOF && ch != '\n');
891 #define PRF_HYPHEN 1u
892 static int parse_range(const char *p, unsigned f,
893 secaddr *start_out, secaddr *end_out)
897 unsigned long start, end;
902 start = strtoul(p, &q, 0);
903 if (errno || start >= SECLIMIT) { rc = -1; goto end; }
904 *start_out = start; p = q;
905 } else if (!(f&PRF_HYPHEN))
906 { rc = -1; goto end; }
911 if (*p != '-') { rc = -1; goto end; }
914 if (!ISSPACE(*p)) { rc = -1; goto end; }
915 do p++; while (ISSPACE(*p));
919 end = strtoul(p, &q, 0);
920 if (errno || end > SECLIMIT || end < start) { rc = -1; goto end; }
921 *end_out = end; p = q;
922 } else if (!(f&PRF_HYPHEN))
923 { rc = -1; goto end; }
925 if (!(f&PRF_HYPHEN)) while (ISSPACE(*p)) p++;
926 if (*p && ((f&PRF_HYPHEN) || *p != '=')) { rc = -1; goto end; }
934 int main(int argc, char *argv[])
941 secaddr start, end, last;
942 const struct event *ev;
943 const char *device, *outfile;
944 struct badblock *bad;
949 struct buf buf = BUF_INIT;
952 const struct file *file;
957 #define f_continue 2u
961 p = strrchr(argv[0], '/'); prog = p ? p + 1 : argv[0];
963 opt = getopt(argc, argv, "hE:FR:X:b:cr:"); if (opt < 0) break;
965 case 'h': usage(stderr); exit(0);
966 case 'E': errfile = optarg; break;
967 case 'F': f |= f_fixup; break;
969 fp = fopen(optarg, "r");
971 bail_syserr(errno, "failed to open ranges file `%s'", optarg);
974 BUF_REWIND(&buf); if (read_line(fp, &buf)) break;
976 while (ISSPACE(*p)) p++;
977 if (!*p || *p == '#') continue;
978 if (parse_range(p, 0, &start, &end) ||
979 (last <= SECLIMIT && start < last))
980 bail("bad range `%s' at `%s' line %zu", buf.p, optarg, i);
983 eventq.v[eventq.n - 1].pos = end;
985 put_event(EV_WRITE, 0, start);
986 put_event(EV_STOP, 0, end);
992 bail_syserr(errno, "failed to read ranges file `%s'", optarg);
995 fp = fopen(optarg, "r");
997 bail_syserr(errno, "failed to open bad-blocks file `%s'", optarg);
1000 BUF_REWIND(&buf); if (read_line(fp, &buf)) break;
1002 while (ISSPACE(*p)) p++;
1003 if (!*p || *p == '#') continue;
1004 if (parse_range(p, 0, &start, &end) ||
1005 (last <= SECLIMIT && start < last))
1006 bail("bad range `%s' at `%s' line %zu", buf.p, optarg, i);
1008 { VEC_PUSH(bad, &badblocks); bad->start = start; bad->end = end; }
1011 bail_syserr(errno, "failed to read bad-blocks file `%s'", optarg);
1014 if (mapfile) bail("can't have multiple map files");
1017 case 'c': f |= f_continue; break;
1019 start = 0; end = -1;
1020 if (parse_range(optarg, PRF_HYPHEN, &start, &end))
1021 bail("bad range `%s'", optarg);
1023 put_event(EV_WRITE, 0, start);
1024 if (end <= SECLIMIT) put_event(EV_STOP, 0, end);
1027 default: f |= f_bogus; break;
1030 if (argc - optind != 2) f |= f_bogus;
1031 if (f&f_bogus) { usage(stderr); exit(2); }
1033 device = argv[optind]; outfile = argv[optind + 1];
1036 qsort(badblocks.v, badblocks.n, sizeof(struct badblock),
1039 printf(";; fake bad blocks:\n");
1040 for (i = 0; i < badblocks.n; i++)
1041 printf(";;\t%8"PRIuSEC" .. %"PRIuSEC"\n",
1042 badblocks.v[i].start, badblocks.v[i].end);
1046 dvdfd = open(device, O_RDONLY);
1048 bail_syserr(errno, "failed to open device `%s'", device);
1049 if (fstat(dvdfd, &st))
1050 bail_syserr(errno, "failed to stat device `%s'", device);
1051 if (S_ISREG(st.st_mode)) {
1054 } else if (S_ISBLK(st.st_mode)) {
1055 if (ioctl(dvdfd, BLKSSZGET, &blksz))
1056 bail_syserr(errno, "failed to get block size for `%s'", device);
1057 if (ioctl(dvdfd, BLKGETSIZE64, &volsz))
1058 bail_syserr(errno, "failed to get volume size for `%s'", device);
1060 bail("can't use `%s' as source: expected file or block device", device);
1062 if (blksz != SECTORSZ)
1063 bail("device `%s' block size %d /= %d", device, blksz, SECTORSZ);
1065 bail("device `%s' volume size %"PRIu64" not a multiple of %d",
1066 device, volsz, SECTORSZ);
1069 outfd = open(outfile, O_WRONLY | O_CREAT, 0666);
1071 bail_syserr(errno, "failed to create output file `%s'", outfile);
1075 off = lseek(outfd, 0, SEEK_END);
1077 bail_syserr(errno, "failed to seek to end of output file `%s'",
1079 put_event(EV_WRITE, 0, off/SECTORSZ);
1080 } else if (!eventq.n && !(f&f_fixup))
1081 put_event(EV_WRITE, 0, 0);
1084 dvd = DVDOpen2(0, &logger, device);
1086 dvd = DVDOpen(device);
1088 if (!dvd) bail("failed to open DVD on `%s'", device);
1090 /* It's fast enough just to check everything. */
1092 for (i = 1; i < 100; i++) {
1096 put_file(mkident(RAW, 0, 0), 0, volsz/SECTORSZ);
1097 assert(filetab.n <= MAXFILES);
1099 for (i = 0, limit = 0; i < filetab.n; i++)
1100 if (filetab.v[i].end > limit) limit = filetab.v[i].end;
1102 if (end > limit) end = limit;
1105 printf("\n;; files:\n");
1106 for (i = 0; i < filetab.n; i++) {
1107 file = &filetab.v[i];
1108 store_filename(fn, file->id);
1109 printf(";;\t%8"PRIuSEC" %s\n", file->start, fn);
1113 qsort(eventq.v, eventq.n, sizeof(struct event), compare_event);
1115 f &= ~f_write; start = 0; n = 0;
1116 for (i = 0; i < eventq.n; i++) {
1121 bail("overlapping ranges: range from %"PRIuSEC" still open at %"PRIuSEC"",
1123 n++; f |= f_write; start = ev->pos;
1131 f &= ~f_write; start = 0;
1132 for (i = 0; i < eventq.n; i++) {
1135 case EV_WRITE: start = ev->pos; f |= f_write; break;
1136 case EV_STOP: nsectors += ev->pos - start; f &= ~f_write; break;
1138 if (ev->pos >= limit) break;
1139 if (f&f_fixup) start = ev->pos;
1143 put_event(EV_WRITE, 0, start);
1147 nsectors += limit - start;
1148 put_event(EV_STOP, 0, limit);
1150 if (n == 1 && (f&f_write)) flags |= F_ALLPROGRESS;
1154 printf("\n;; event sweep:\n");
1156 for (pos = 0, i = 0; i < eventq.n; i++) {
1158 if (ev->pos > pos) {
1159 if (f&f_write) emit(pos, ev->pos);
1162 debug_clear_progress();
1170 store_filename(fn, filetab.v[ev->file].id);
1171 debug_clear_progress();
1172 printf(";; %8"PRIuSEC": begin `%s'\n", pos, fn);
1176 gettimeofday(&last_time, 0); last_pos = pos;
1177 if (lseek(outfd, (off_t)ev->pos*SECTORSZ, SEEK_SET) < 0)
1179 "failed to seek to resume position "
1180 "(sector %"PRIuSEC") in output file `%s'",
1183 debug_clear_progress();
1184 printf(";; %8"PRIuSEC": begin write\n", pos);
1191 debug_clear_progress();
1192 printf(";; %8"PRIuSEC": end write\n", pos);
1196 clear_live(ev->file);
1198 store_filename(fn, filetab.v[ev->file].id);
1199 debug_clear_progress();
1200 printf(";; %8"PRIuSEC": end `%s'\n", pos, fn);
1207 if (progresslen) putchar('\n');
1209 if (ftruncate(outfd, (off_t)limit*SECTORSZ) < 0)
1210 bail_syserr(errno, "failed to set output file `%s' length", outfile);
1212 if (dvd) DVDClose(dvd);
1213 if (dvdfd >= 0) close(dvdfd);
1214 if (outfd >= 0) close(outfd);
1215 carefully_fclose(mapfp, "bad-sector region map");
1216 carefully_fclose(errfp, "bad-sector error log");