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 #define DEFVEC(vtype, etype) \
108 typedef struct { etype *v; size_t n, sz; } vtype
109 #define VEC_INIT { 0, 0, 0 }
110 #define VEC_FREE(vv) do { \
111 free((vv)->v); (vv)->v 0; (vv)->n = (vv)->sz = 0; \
113 #define VEC_PUSH(p, vv) do { \
115 if ((vv)->n >= (vv)->sz) { \
116 (vv)->sz = (vv)->sz ? 2*(vv)->sz : 32; \
117 _want = (vv)->sz*sizeof(*(vv)->v); \
118 (vv)->v = realloc((vv)->v, _want); \
119 if (!(vv)->v) bail("out of memory allocating %zu bytes", _want); \
121 (p) = &(vv)->v[(vv)->n++]; \
124 enum { RAW, IFO, VOB, BUP };
125 typedef uint_least32_t ident;
127 static inline ident mkident(unsigned kind, unsigned title, unsigned part)
128 { return (((ident)kind << 0) | ((ident)title << 8) | ((ident)part << 16)); }
129 static inline unsigned id_kind(ident id) { return ((id >> 0)&0x0ff); }
130 static inline unsigned id_title(ident id) { return ((id >> 8)&0x0ff); }
131 static inline unsigned id_part(ident id) { return ((id >> 16)&0x0ff); }
133 #define MAXFNSZ (1 + 8 + 1 + 12 + 1)
135 static void store_filename(char *buf, ident id)
137 switch (id_kind(id)) {
139 sprintf(buf, "#<raw device>");
142 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.IFO");
143 else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.IFO", id_title(id));
146 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.BUP");
147 else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.BUP", id_title(id));
150 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.VOB");
152 sprintf(buf, "/VIDEO_TS/VTS_%02u_%u.VOB", id_title(id), id_part(id));
159 typedef uint_least32_t secaddr;
160 #define PRIuSEC PRIuLEAST32
161 #define SECLIMIT 0x00400000
163 #define MAXFILES (1 + 2*99 + 1)
168 DEFVEC(file_v, struct file);
169 static file_v filetab = VEC_INIT;
171 enum { EV_STOP, EV_BEGIN, EV_END, EV_WRITE };
173 unsigned char ev, file;
176 DEFVEC(event_v, struct event);
177 static event_v eventq = VEC_INIT;
179 static int compare_event(const void *a, const void *b)
181 const struct event *eva = a, *evb = b;
183 if (eva->pos < evb->pos) return (-1);
184 else if (eva->pos > evb->pos) return (+1);
186 if (eva->ev < evb->ev) return (-1);
187 else if (eva->ev > evb->ev) return (+1);
189 if (eva->file < evb->file) return (-1);
190 else if (eva->file > evb->file) return (+1);
195 typedef uint_least32_t bits;
196 static bits live[(MAXFILES + 31)/32];
198 static inline int livep(unsigned i)
199 { return (live[i/32]&((bits)1 << (i%32))); }
200 static inline void set_live(unsigned i)
201 { live[i/32] |= (bits)1 << (i%32); }
202 static inline void clear_live(unsigned i)
203 { live[i/32] &= ~((bits)1 << (i%32)); }
204 static inline int least_live(void)
206 unsigned i, n = (filetab.n + 32)/32;
209 for (i = 0; i < n; i++) { b = live[i]; if (b) goto found; }
213 if (!(b&0x0000ffff)) { b >>= 16; i += 16; }
214 if (!(b&0x000000ff)) { b >>= 8; i += 8; }
215 if (!(b&0x0000000f)) { b >>= 4; i += 4; }
216 if (!(b&0x00000003)) { b >>= 2; i += 2; }
217 if (!(b&0x00000001)) { b >>= 1; i += 1; }
222 static void put_event(unsigned evtype, unsigned file, secaddr pos)
226 VEC_PUSH(ev, &eventq);
227 ev->ev = evtype; ev->file = file; ev->pos = pos;
230 static void put_file(ident id, secaddr start, secaddr end)
235 VEC_PUSH(f, &filetab); i = f - filetab.v;
236 f->id = id; f->start = start; f->end = end;
237 put_event(EV_BEGIN, i, start);
238 put_event(EV_END, i, end);
241 static void put_menu(dvd_reader_t *dvd, unsigned title)
243 ident id = mkident(VOB, title, 0);
247 store_filename(fn, id);
248 start = UDFFindFile(dvd, fn, &len); if (!start) return;
250 printf(";; %8"PRIuSEC" .. %-8"PRIuSEC": %s\n",
251 start, start + SECTORS(len), fn);
253 put_file(id, start, start + SECTORS(len));
256 static void put_title(dvd_reader_t *dvd, unsigned title)
259 secaddr start[9], len[9];
262 for (i = 0; i < 9; i++) {
263 store_filename(fn, mkident(VOB, title, i + 1));
264 start[i] = UDFFindFile(dvd, fn, &len[i]); if (!start[i]) break;
266 npart = i; if (!npart) return;
269 for (i = 0; i < npart; i++) {
270 store_filename(fn, mkident(VOB, title, i + 1));
271 printf(";; %8"PRIuSEC" .. %-8"PRIuSEC": %s\n",
272 start[i], start[i] + SECTORS(len[i]), fn);
277 for (i = 0; i < npart - 1; i++) {
279 bail("title %u part %u length = %"PRIuSEC" not a multiple of %d",
280 title, i, len[i], SECTORSZ);
281 if (start[i] + len[i]/SECTORSZ != start[i + 1])
283 ("title %u part %u end = %"PRIuSEC" /= part %u start = %"PRIuSEC"",
284 title, i, start[i] + len[i]/SECTORSZ, i + 1, start[i + 1]);
287 put_file(mkident(VOB, title, 1),
288 start[0], start[npart - 1] + SECTORS(len[npart - 1]));
291 static int progresslen = 0;
293 static void clear_progress_internal(void)
295 while (progresslen) { fputs("\b \b", stdout); progresslen--; }
298 static void clear_progress(void)
299 { clear_progress_internal(); fflush(stdout); }
301 static void debug_clear_progress(void)
302 { if (progresslen) { putchar('\n'); progresslen = 0; } }
304 static void vappend_progress(const char *fmt, va_list ap)
305 { progresslen += vprintf(fmt, ap); }
306 __attribute__((format(printf, 1, 2)))
307 static void append_progress(const char *fmt, ...)
312 vappend_progress(fmt, ap);
315 __attribute__((format(printf, 1, 2)))
316 static void print_progress(const char *fmt, ...)
321 clear_progress_internal();
322 vappend_progress(fmt, ap);
327 # define F_ALLPROGRESS 1u
328 static secaddr last_pos, limit, nsectors, ndone;
329 static struct timeval last_time;
330 static double wsum, wcount;
331 static struct file *file;
333 static void report_progress(secaddr pos)
338 double percent, t, f, g, rate;
342 #define BETA (1 - ALPHA)
344 gettimeofday(&now, 0);
345 t = (now.tv_sec - last_time.tv_sec) +
346 (now.tv_usec - last_time.tv_usec)/1000000.0;
349 g = wcount ? pow(BETA, t) : 0.0; f = (1 - g)/(1 - BETA);
350 wsum = f*(pos - last_pos)/t + g*wsum;
351 wcount = f + g*wcount;
352 ndone += pos - last_pos;
353 last_time = now; last_pos = pos;
356 if (!wsum || !wcount)
357 { rate = 0; strcpy(etastr, "???"); }
360 eta = (int)((nsectors - ndone)/rate);
361 sprintf(etastr, "%d:%02d:%02d", eta/3600, (eta/60)%60, eta%60);
364 rate *= SECTORSZ; unit = "";
365 if (rate > 128) { rate /= 1024; unit = "k"; }
366 if (rate > 128) { rate /= 1024; unit = "M"; }
367 if (rate > 128) { rate /= 1024; unit = "G"; }
369 if (flags&F_ALLPROGRESS) percent = pos*100.0/limit;
370 else percent = ndone*100.0/nsectors;
372 ("copied %.1f%% (%"PRIuSEC" of %"PRIuSEC"; %.1f %sB/s, ETA %s)",
373 percent, pos, limit, rate, unit, etastr);
374 if (file && id_kind(file->id) == VOB) {
375 append_progress(" -- %s %d %3.1f%%",
376 id_part(file->id) ? "title" : "menu",
378 (pos - file->start)*100.0/
379 (file->end - file->start));
386 static dvd_reader_t *dvd;
387 static int dvdfd = -1, outfd = -1;
388 static dvd_file_t *vob;
389 static const char *mapfile; static FILE *mapfp;
391 struct badblock { secaddr start, end; };
392 DEFVEC(badblock_v, struct badblock);
393 static badblock_v badblocks = VEC_INIT;
395 static int compare_badblock(const void *a, const void *b)
397 const struct badblock *ba = a, *bb = b;
399 if (ba->start < bb->start) return (-1);
400 else if (ba->start > bb->start) return (+1);
402 if (ba->end < bb->end) return (-1);
403 else if (ba->end > bb->end) return (+1);
408 static ssize_t read_sectors(secaddr pos, void *buf, secaddr want)
413 struct badblock *bad, *best;
414 unsigned char *p = buf;
417 best = 0; lo = 0; hi = badblocks.n;
419 debug_clear_progress();
420 printf(";; searching badblocks for %"PRIuSEC" .. %"PRIuSEC"\n",
424 mid = lo + (hi - lo)/2; bad = &badblocks.v[mid];
426 printf(";; try %zu (%"PRIuSEC" .. %"PRIuSEC")... ",
427 mid, bad->start, bad->end);
429 if (pos < bad->start) { D( printf("high\n"); ) best = bad; hi = mid; }
430 else if (pos >= bad->end) { D( printf("low\n"); ) lo = mid + 1; }
431 else { D( printf("match!\n"); ) errno = EIO; return (-1); }
435 printf(";; next is %"PRIuSEC" .. %"PRIuSEC"\n",
436 best->start, best->end);
438 if (best && pos + want > best->start)
439 { want = best->start - pos; fakeerr = EIO; }
444 { errno = 0; n = DVDReadBlocks(vob, pos - file->start, want, p); }
446 if (lseek(dvdfd, (off_t)pos*SECTORSZ, SEEK_SET) < 0)
447 bail_syserr(errno, "failed to seek to sector %"PRIuSEC"", pos);
448 errno = 0; n = read(dvdfd, p, want*SECTORSZ);
449 if (n >= 0) n /= SECTORSZ;
451 memset(p, 0, want*SECTORSZ);
455 if (n > 0) { done += n; pos += n; p += n*SECTORSZ; want -= n; }
456 else if (!n || errno != EINTR) break;
458 if (fakeerr && !errno) errno = fakeerr;
459 return (!done && errno ? -1 : done);
462 static void report_bad_blocks_progress(secaddr lo, secaddr hi, int err)
466 if (lo == hi) append_progress(": retrying bad sector");
468 append_progress(": %"PRIuSEC" bad %s",
469 hi - lo, hi == lo + 1 ? "sector" : "sectors");
470 if (err && err != EIO) append_progress(" (%s)", strerror(err));
474 static void recovered(secaddr bad_lo, secaddr bad_hi)
477 moan("skipping %"PRIuSEC" bad sectors (%"PRIuSEC" .. %"PRIuSEC")",
478 bad_hi - bad_lo, bad_lo, bad_hi);
481 mapfp = fopen(mapfile, "w");
483 bail_syserr(errno, "failed to open bad-sector map file `%s'",
485 fprintf(mapfp, "## bad sector map\n\n");
487 fprintf(mapfp, "%"PRIuSEC" %"PRIuSEC"\n", bad_lo, bad_hi);
490 bail_syserr(errno, "error writing bad-sector map file");
492 if (lseek(outfd, (off_t)(bad_hi - bad_lo)*SECTORSZ, SEEK_CUR) < 0)
493 bail_syserr(errno, "failed to seek past bad sectors");
499 secaddr sz, pos, start, end;
502 static void rearrange_sectors(struct recoverybuf *r,
503 secaddr dest, secaddr src, secaddr len)
505 assert(dest + len <= r->sz);
506 assert(src + len <= r->sz);
507 memmove(r->buf + dest*SECTORSZ, r->buf + src*SECTORSZ, len*SECTORSZ);
511 __attribute__((format(printf, 2, 3)))
512 static void show_recovery_buffer_map(const struct recoverybuf *r,
513 const char *what, ...)
518 debug_clear_progress();
519 printf(";; recovery buffer (");
522 "(%"PRIuSEC") ..%"PRIuSEC".. "
523 "[%"PRIuSEC" ..%"PRIuSEC".. %"PRIuSEC"] "
524 "..%"PRIuSEC".. (%"PRIuSEC")\n",
526 r->pos + r->start, r->end - r->start, r->pos + r->end,
527 r->sz - r->end, r->pos + r->sz);
529 assert(r->start <= r->end);
530 assert(r->end <= r->sz);
534 static ssize_t recovery_read_sectors(struct recoverybuf *r,
535 secaddr pos, secaddr off, secaddr want)
539 assert(off <= r->sz); assert(want <= r->sz - off);
540 n = read_sectors(pos, r->buf + off*SECTORSZ, want);
544 static ssize_t recovery_read(struct recoverybuf *r,
545 secaddr pos, secaddr want)
547 secaddr diff, pp, nn;
551 debug_clear_progress();
552 show_recovery_buffer_map(r, "begin(%"PRIuSEC", %"PRIuSEC")", pos, want);
557 if (r->start + diff >= r->sz) {
558 r->pos = pos; r->start = r->end = 0;
560 show_recovery_buffer_map(r, "cleared; shift up by %"PRIuSEC"", diff);
563 if (r->end + diff > r->sz) r->end = r->sz - diff;
564 rearrange_sectors(r, r->start + diff, r->start, r->end - r->start);
565 r->pos -= diff; r->start += diff; r->end += diff;
567 show_recovery_buffer_map(r, "shifted up by %"PRIuSEC"", diff);
570 } else if (pos > r->pos + r->end) {
571 r->pos = pos; r->start = r->end = 0;
573 show_recovery_buffer_map(r, "cleared; beyond previous region");
575 } else if (pos + want > r->pos + r->sz) {
576 diff = (pos + want) - (r->pos + r->sz);
577 if (r->end <= diff) {
578 r->pos = pos; r->start = r->end = 0;
580 show_recovery_buffer_map(r, "cleared; shift down by %"PRIuSEC"", diff);
583 if (r->start < diff) r->start = diff;
584 rearrange_sectors(r, r->start - diff, r->start, r->end - r->start);
585 r->pos += diff; r->start -= diff; r->end -= diff;
587 show_recovery_buffer_map(r, "shifted down by %"PRIuSEC"", diff);
592 if (pos < r->pos + r->start) {
593 pp = pos - r->pos; nn = r->start - pp;
595 printf(";; read low (%"PRIuSEC"@%"PRIuSEC", %"PRIuSEC")", pos, pp, nn);
598 n = recovery_read_sectors(r, pos, pp, nn);
600 printf(" -> %zd\n", n);
603 if (n >= 0 && n > want) n = want;
608 show_recovery_buffer_map(r, "joined new region");
612 if (pos + want > r->pos + r->end) {
613 pp = r->end; nn = (pos + want) - (r->pos + r->end);
615 printf(";; read high (%"PRIuSEC"@%"PRIuSEC", %"PRIuSEC")",
616 r->pos + pp, pp, nn);
619 n = recovery_read_sectors(r, pos + pp, pp, nn);
621 printf(" -> %zd\n", n);
626 show_recovery_buffer_map(r, "joined new region");
631 n = r->pos + r->end - pos;
632 if (!n && want) n = -1;
636 show_recovery_buffer_map(r, "done; return %zd", n);
641 static secaddr run_length_wanted(secaddr pos, secaddr badlen,
642 secaddr sz, secaddr end)
648 if (want > end - pos) want = end - pos;
649 if (want > sz) want = sz;
653 static ssize_t find_good_sector(secaddr *pos_inout, secaddr end,
654 unsigned char *buf, secaddr sz)
657 secaddr pos = *pos_inout, bad_lo, bad_hi, good, step, want;
658 struct recoverybuf r;
661 r.buf = buf; r.sz = sz; r.pos = r.start = r.end = 0;
662 report_bad_blocks_progress(pos, pos, errno);
664 want = sz; if (want > end - pos) want = end - pos;
665 for (i = 0; i < 4; i++) {
666 n = recovery_read(&r, pos, want);
668 debug_clear_progress();
669 printf(";; [retry] try reading %"PRIuSEC" .. %"PRIuSEC" -> %zd\n",
674 moan("sector %"PRIuSEC" read ok after retry", pos);
679 bad_lo = pos; bad_hi = pos + 1;
681 report_bad_blocks_progress(bad_lo, bad_hi, errno);
684 moan("giving up on this extent");
685 recovered(bad_lo, end); *pos_inout = end; return (0);
687 step = 2*(bad_hi - bad_lo); if (step > end - bad_lo) step = end - bad_lo;
688 pos = bad_lo + step - 1;
689 want = run_length_wanted(pos, step, sz, end);
690 n = recovery_read(&r, pos, want);
692 debug_clear_progress();
693 printf(";; [bound] try reading %"PRIuSEC" .. %"PRIuSEC" -> %zd\n",
696 if (n == want) break;
698 bad_hi = pos + n + 1;
702 while (good > bad_hi) {
703 report_bad_blocks_progress(bad_lo, bad_hi, errno);
704 pos = bad_hi + (good - bad_hi)/2;
706 want = run_length_wanted(pos, step, sz, end);
707 n = recovery_read(&r, pos, want);
709 debug_clear_progress();
710 printf(";; [limit] try reading %"PRIuSEC" .. %"PRIuSEC" -> %zd\n",
714 if (n == want) good = pos;
715 else bad_hi = pos + n + 1;
717 recovered(bad_lo, bad_hi); *pos_inout = good;
718 if (good < r.pos + r.start || r.pos + r.end <= good)
721 n = r.pos + r.end - good;
722 rearrange_sectors(&r, 0, good - r.pos, n);
725 show_recovery_buffer_map(&r, "returning %zd good sectors at %"PRIuSEC"",
731 static void emit(secaddr start, secaddr end)
733 #define BUFSECTORS 512
736 unsigned char buf[BUFSECTORS*SECTORSZ];
740 static int first_time = 1;
748 least = least_live();
751 printf(";; %8"PRIuSEC" .. %"PRIuSEC"\n", start, end);
753 for (i = 0; i < filetab.n; i++) {
754 if (!livep(i)) continue;
755 if (act == -1) act = i;
756 f = &filetab.v[i]; store_filename(fn, f->id);
757 printf(";;\t\t%8"PRIuSEC" .. %-8"PRIuSEC" %s\n",
758 start - f->start, end - f->start, fn);
760 if (act == -1) printf(";;\t\t#<no live source>\n");
761 assert(act == least);
765 { file = 0; vob = 0; }
767 file = &filetab.v[least];
768 switch (id_kind(file->id)) {
773 if (first_time) { clear_progress(); first_time = 0; }
774 vob = DVDOpenFile(dvd, id_title(file->id),
776 ? DVD_READ_TITLE_VOBS
777 : DVD_READ_MENU_VOBS);
779 bail("failed to open %s %u",
780 id_part(file->id) ? "title" : "menu",
790 want = end - pos; if (want > BUFSECTORS) want = BUFSECTORS;
791 n = read_sectors(pos, buf, want);
793 if (n <= 0) n = find_good_sector(&pos, end, buf, BUFSECTORS);
794 if (n > 0) { carefully_write(outfd, buf, n*SECTORSZ); pos += n; }
795 report_progress(pos); fflush(stdout);
798 if (vob) { DVDCloseFile(vob); vob = 0; }
804 static void logfn(void *p, dvd_logger_level_t lev,
805 const char *fmt, va_list ap)
808 case DVD_LOGGER_LEVEL_ERROR:
809 fprintf("%s (libdvdread error): ", prog);
811 case DVD_LOGGER_LEVEL_WARN:
812 fprintf("%s (libdvdread warning): ", prog);
817 vfprintf(stderr, fmt, ap);
820 static const dvd_logger_cb logger = { logfn };
827 #define BUF_INIT { 0, 0, 0 }
828 #define BUF_REWIND(b) do { (b)->n = 0; } while (0)
829 #define BUF_FREE(b) do { \
831 free(_b->p); _b->p = 0; _b->n = _b->sz = 0; \
833 #define BUF_PUTC(b, ch) do { \
834 struct buf *_b = (b); \
835 if (_b->n >= _b->sz) { \
836 _b->sz = _b->sz ? 2*_b->sz : 32; \
837 _b->p = realloc(_b->p, _b->sz); \
838 if (!_b->p) bail("out of memory allocating %zu bytes", _b->sz); \
840 _b->p[_b->n] = (ch); \
843 static int read_line(FILE *fp, struct buf *b)
850 else if (ch != '\n') do {
851 BUF_PUTC(b, ch); b->n++;
853 } while (ch != EOF && ch != '\n');
858 #define PRF_HYPHEN 1u
859 static int parse_range(const char *p, unsigned f,
860 secaddr *start_out, secaddr *end_out)
864 unsigned long start, end;
869 start = strtoul(p, &q, 0);
870 if (errno || start >= SECLIMIT) { rc = -1; goto end; }
871 *start_out = start; p = q;
872 } else if (!(f&PRF_HYPHEN))
873 { rc = -1; goto end; }
878 if (*p != '-') { rc = -1; goto end; }
881 if (!ISSPACE(*p)) { rc = -1; goto end; }
882 do p++; while (ISSPACE(*p));
886 end = strtoul(p, &q, 0);
887 if (errno || end > SECLIMIT || end < start) { rc = -1; goto end; }
888 *end_out = end; p = q;
889 } else if (!(f&PRF_HYPHEN))
890 { rc = -1; goto end; }
892 if (!(f&PRF_HYPHEN)) while (ISSPACE(*p)) p++;
893 if (*p) { rc = -1; goto end; }
901 int main(int argc, char *argv[])
908 secaddr start, end, last;
909 const struct event *ev;
910 const char *device, *outfile;
911 struct badblock *bad;
916 struct buf buf = BUF_INIT;
919 const struct file *file;
924 #define f_continue 2u
928 p = strrchr(argv[0], '/'); prog = p ? p + 1 : argv[0];
930 opt = getopt(argc, argv, "hFR:X:b:cr:"); if (opt < 0) break;
932 case 'h': usage(stderr); exit(0);
933 case 'F': f |= f_fixup; break;
935 fp = fopen(optarg, "r");
937 bail_syserr(errno, "failed to open ranges file `%s'", optarg);
940 BUF_REWIND(&buf); if (read_line(fp, &buf)) break;
942 while (ISSPACE(*p)) p++;
943 if (!*p || *p == '#') continue;
944 if (parse_range(p, 0, &start, &end) ||
945 (last <= SECLIMIT && start < last))
946 bail("bad range `%s' at `%s' line %zu", buf.p, optarg, i);
949 eventq.v[eventq.n - 1].pos = end;
951 put_event(EV_WRITE, 0, start);
952 put_event(EV_STOP, 0, end);
958 bail_syserr(errno, "failed to read ranges file `%s'", optarg);
961 fp = fopen(optarg, "r");
963 bail_syserr(errno, "failed to open bad-blocks file `%s'", optarg);
966 BUF_REWIND(&buf); if (read_line(fp, &buf)) break;
968 while (ISSPACE(*p)) p++;
969 if (!*p || *p == '#') continue;
970 if (parse_range(p, 0, &start, &end) ||
971 (last <= SECLIMIT && start < last))
972 bail("bad range `%s' at `%s' line %zu", buf.p, optarg, i);
974 { VEC_PUSH(bad, &badblocks); bad->start = start; bad->end = end; }
977 bail_syserr(errno, "failed to read bad-blocks file `%s'", optarg);
980 if (mapfile) bail("can't have multiple map files");
983 case 'c': f |= f_continue; break;
986 if (parse_range(optarg, PRF_HYPHEN, &start, &end))
987 bail("bad range `%s'", optarg);
989 put_event(EV_WRITE, 0, start);
990 if (end <= SECLIMIT) put_event(EV_STOP, 0, end);
993 default: f |= f_bogus; break;
996 if (argc - optind != 2) f |= f_bogus;
997 if (f&f_bogus) { usage(stderr); exit(2); }
999 device = argv[optind]; outfile = argv[optind + 1];
1002 qsort(badblocks.v, badblocks.n, sizeof(struct badblock),
1005 printf(";; fake bad blocks:\n");
1006 for (i = 0; i < badblocks.n; i++)
1007 printf(";;\t%8"PRIuSEC" .. %"PRIuSEC"\n",
1008 badblocks.v[i].start, badblocks.v[i].end);
1012 dvdfd = open(device, O_RDONLY);
1014 bail_syserr(errno, "failed to open device `%s'", device);
1015 if (fstat(dvdfd, &st))
1016 bail_syserr(errno, "failed to stat device `%s'", device);
1017 if (S_ISREG(st.st_mode)) {
1020 } else if (S_ISBLK(st.st_mode)) {
1021 if (ioctl(dvdfd, BLKSSZGET, &blksz))
1022 bail_syserr(errno, "failed to get block size for `%s'", device);
1023 if (ioctl(dvdfd, BLKGETSIZE64, &volsz))
1024 bail_syserr(errno, "failed to get volume size for `%s'", device);
1026 bail("can't use `%s' as source: expected file or block device", device);
1028 if (blksz != SECTORSZ)
1029 bail("device `%s' block size %d /= %d", device, blksz, SECTORSZ);
1031 bail("device `%s' volume size %"PRIu64" not a multiple of %d",
1032 device, volsz, SECTORSZ);
1035 outfd = open(outfile, O_WRONLY | O_CREAT, 0666);
1037 bail_syserr(errno, "failed to create output file `%s'", outfile);
1041 off = lseek(outfd, 0, SEEK_END);
1043 bail_syserr(errno, "failed to seek to end of output file `%s'",
1045 put_event(EV_WRITE, 0, off/SECTORSZ);
1046 } else if (!eventq.n && !(f&f_fixup))
1047 put_event(EV_WRITE, 0, 0);
1050 dvd = DVDOpen2(0, &logger, device);
1052 dvd = DVDOpen(device);
1054 if (!dvd) bail("failed to open DVD on `%s'", device);
1056 /* It's fast enough just to check everything. */
1058 for (i = 1; i < 100; i++) {
1062 put_file(mkident(RAW, 0, 0), 0, volsz/SECTORSZ);
1063 assert(filetab.n <= MAXFILES);
1065 for (i = 0, limit = 0; i < filetab.n; i++)
1066 if (filetab.v[i].end > limit) limit = filetab.v[i].end;
1068 if (end > limit) end = limit;
1071 printf("\n;; files:\n");
1072 for (i = 0; i < filetab.n; i++) {
1073 file = &filetab.v[i];
1074 store_filename(fn, file->id);
1075 printf(";;\t%8"PRIuSEC" %s\n", file->start, fn);
1079 qsort(eventq.v, eventq.n, sizeof(struct event), compare_event);
1081 f &= ~f_write; start = 0; n = 0;
1082 for (i = 0; i < eventq.n; i++) {
1087 bail("overlapping ranges: range from %"PRIuSEC" still open at %"PRIuSEC"",
1089 n++; f |= f_write; start = ev->pos;
1097 f &= ~f_write; start = 0;
1098 for (i = 0; i < eventq.n; i++) {
1101 case EV_WRITE: start = ev->pos; f |= f_write; break;
1102 case EV_STOP: nsectors += ev->pos - start; f &= ~f_write; break;
1104 if (ev->pos >= limit) break;
1105 if (f&f_fixup) start = ev->pos;
1109 put_event(EV_WRITE, 0, start);
1113 nsectors += limit - start;
1114 put_event(EV_STOP, 0, limit);
1116 if (n == 1 && (f&f_write)) flags |= F_ALLPROGRESS;
1120 printf("\n;; event sweep:\n");
1122 for (pos = 0, i = 0; i < eventq.n; i++) {
1124 if (ev->pos > pos) {
1125 if (f&f_write) emit(pos, ev->pos);
1128 debug_clear_progress();
1136 store_filename(fn, filetab.v[ev->file].id);
1137 debug_clear_progress();
1138 printf(";; %8"PRIuSEC": begin `%s'\n", pos, fn);
1142 gettimeofday(&last_time, 0); last_pos = pos;
1143 if (lseek(outfd, (off_t)ev->pos*SECTORSZ, SEEK_SET) < 0)
1145 "failed to seek to resume position "
1146 "(sector %"PRIuSEC") in output file `%s'",
1149 debug_clear_progress();
1150 printf(";; %8"PRIuSEC": begin write\n", pos);
1157 debug_clear_progress();
1158 printf(";; %8"PRIuSEC": end write\n", pos);
1162 clear_live(ev->file);
1164 store_filename(fn, filetab.v[ev->file].id);
1165 debug_clear_progress();
1166 printf(";; %8"PRIuSEC": end `%s'\n", pos, fn);
1173 if (progresslen) putchar('\n');
1175 if (ftruncate(outfd, (off_t)limit*SECTORSZ) < 0)
1176 bail_syserr(errno, "failed to set output file `%s' length", outfile);
1178 if (dvd) DVDClose(dvd);
1179 if (dvdfd >= 0) close(dvdfd);
1180 if (outfd >= 0) close(outfd);
1182 if (ferror(mapfp) || fclose(mapfp))
1183 bail_syserr(errno, "error writing bad-sector map file");