--- /dev/null
+#define _GNU_SOURCE
+#define _FILE_OFFSET_BITS 64
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <math.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+
+#include <getopt.h>
+
+#include <linux/fs.h>
+
+#include <dvdread/dvd_reader.h>
+#include <dvdread/dvd_udf.h>
+#include <dvdread/ifo_read.h>
+#include <dvdread/ifo_types.h>
+
+#define SECTORSZ 2048
+#define SECTORS(n) (((n) + (SECTORSZ - 1))/SECTORSZ)
+
+#define CTYPE_HACK(fn, ch) fn((unsigned char)(ch))
+#define ISDIGIT(ch) CTYPE_HACK(isdigit, ch)
+#define ISSPACE(ch) CTYPE_HACK(isspace, ch)
+
+#define N(v) (sizeof(v)/sizeof((v)[0]))
+
+enum { RAW, IFO, VOB, BUP };
+typedef uint_least32_t ident;
+
+static inline ident mkident(unsigned kind, unsigned title, unsigned part)
+ { return (((ident)kind << 0) | ((ident)title << 8) | ((ident)part << 16)); }
+static inline unsigned id_kind(ident id) { return ((id >> 0)&0x0ff); }
+static inline unsigned id_title(ident id) { return ((id >> 8)&0x0ff); }
+static inline unsigned id_part(ident id) { return ((id >> 16)&0x0ff); }
+
+static const char *prog = "<unset>";
+static int status = 0;
+
+static void usage(FILE *fp)
+{
+ fprintf(fp,
+ "usage: %s [-c] [-D DEV] [-R MAP] "
+ "[-b OUTMAP] [-o OUTFILE] [-r [START]-[END]]\n",
+ prog);
+}
+
+static void vmoan(const char *fmt, va_list ap)
+ { fprintf(stderr, "%s: ", prog); vfprintf(stderr, fmt, ap); }
+__attribute__((noreturn, format(printf, 1, 2)))
+static void bail(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt); vmoan(fmt, ap); va_end(ap);
+ fputc('\n', stderr);
+ exit(2);
+}
+__attribute__((noreturn, format(printf, 2, 3)))
+static void bail_syserr(int err, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt); vmoan(fmt, ap); va_end(ap);
+ if (err) fprintf(stderr, ": %s", strerror(errno));
+ fputc('\n', stderr);
+ exit(2);
+}
+
+#define MAXFNSZ (1 + 8 + 1 + 12 + 1)
+
+static void store_filename(char *buf, ident id)
+{
+ switch (id_kind(id)) {
+ case RAW:
+ sprintf(buf, "#<raw device>");
+ break;
+ case IFO:
+ if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.IFO");
+ else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.IFO", id_title(id));
+ break;
+ case BUP:
+ if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.BUP");
+ else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.BUP", id_title(id));
+ break;
+ case VOB:
+ if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.VOB");
+ else
+ sprintf(buf, "/VIDEO_TS/VTS_%02u_%u.VOB", id_title(id), id_part(id));
+ break;
+ default:
+ abort();
+ }
+}
+
+#define DEFVEC(vtype, etype) \
+ typedef struct { etype *v; size_t n, sz; } vtype
+#define VEC_INIT { 0, 0, 0 }
+#define VEC_FREE(vv) do { \
+ free((vv)->v); (vv)->v 0; (vv)->n = (vv)->sz = 0; \
+} while (0)
+#define VEC_PUSH(p, vv) do { \
+ size_t _want; \
+ if ((vv)->n >= (vv)->sz) { \
+ (vv)->sz = (vv)->sz ? 2*(vv)->sz : 32; \
+ _want = (vv)->sz*sizeof(*(vv)->v); \
+ (vv)->v = realloc((vv)->v, _want); \
+ if (!(vv)->v) bail("out of memory allocating %zu bytes", _want); \
+ } \
+ (p) = &(vv)->v[(vv)->n++]; \
+} while (0)
+
+#define MAXFILES (1 + 2*99 + 1)
+struct file {
+ ident id;
+ uint32_t start, end;
+};
+DEFVEC(file_v, struct file);
+static file_v filetab = VEC_INIT;
+
+enum { EV_WRITE, EV_BEGIN, EV_END, EV_STOP };
+struct event {
+ unsigned char ev, file;
+ uint32_t pos;
+};
+DEFVEC(event_v, struct event);
+static event_v eventq = VEC_INIT;
+
+typedef uint_least32_t bits;
+static bits live[(MAXFILES + 31)/32];
+
+static inline int livep(unsigned i)
+ { return (live[i/32]&((bits)1 << (i%32))); }
+static inline void set_live(unsigned i)
+ { live[i/32] |= (bits)1 << (i%32); }
+static inline void clear_live(unsigned i)
+ { live[i/32] &= ~((bits)1 << (i%32)); }
+static inline int least_live(void)
+{
+ unsigned i, n = (filetab.n + 32)/32;
+ bits b;
+
+ for (i = 0; i < n; i++) { b = live[i]; if (b) goto found; }
+ return (-1);
+found:
+ i *= 32;
+ if (!(b&0x0000ffff)) { b >>= 16; i += 16; }
+ if (!(b&0x000000ff)) { b >>= 8; i += 8; }
+ if (!(b&0x0000000f)) { b >>= 4; i += 4; }
+ if (!(b&0x00000003)) { b >>= 2; i += 2; }
+ if (!(b&0x00000001)) { b >>= 1; i += 1; }
+ assert(b&1);
+ return (i);
+}
+
+static void put_event(unsigned evtype, unsigned file, uint32_t pos)
+{
+ struct event *ev;
+
+ VEC_PUSH(ev, &eventq);
+ ev->ev = evtype; ev->file = file; ev->pos = pos;
+}
+
+static void put_file(ident id, uint32_t start, uint32_t end)
+{
+ struct file *f;
+ size_t i;
+
+ VEC_PUSH(f, &filetab); i = f - filetab.v;
+ f->id = id; f->start = start; f->end = end;
+ put_event(EV_BEGIN, i, start);
+ put_event(EV_END, i, end);
+}
+
+static void put_menu(dvd_reader_t *dvd, unsigned title)
+{
+ ident id = mkident(VOB, title, 0);
+ char fn[MAXFNSZ];
+ uint32_t start, len;
+
+ store_filename(fn, id);
+ start = UDFFindFile(dvd, fn, &len); if (!start) return;
+#ifdef DEBUG
+ printf(";; %8"PRIu32" .. %-8"PRIu32": %s\n",
+ start, start + SECTORS(len), fn);
+#endif
+ put_file(id, start, start + SECTORS(len));
+}
+
+static void put_title(dvd_reader_t *dvd, unsigned title)
+{
+ char fn[MAXFNSZ];
+ uint32_t start[9], len[9];
+ unsigned i, npart;
+
+ for (i = 0; i < 9; i++) {
+ store_filename(fn, mkident(VOB, title, i + 1));
+ start[i] = UDFFindFile(dvd, fn, &len[i]); if (!start[i]) break;
+ }
+ npart = i; if (!npart) return;
+
+#ifdef DEBUG
+ for (i = 0; i < npart; i++) {
+ store_filename(fn, mkident(VOB, title, i + 1));
+ printf(";; %8"PRIu32" .. %-8"PRIu32": %s\n",
+ start[i], start[i] + SECTORS(len[i]), fn);
+ }
+#endif
+
+ if (npart > 1)
+ for (i = 0; i < npart - 1; i++) {
+ if (len[i]%SECTORSZ)
+ bail("title %u part %u length = %"PRIu32" not a multiple of %d",
+ title, i, len[i], SECTORSZ);
+ if (start[i] + len[i]/SECTORSZ != start[i + 1])
+ bail("title %u part %u end = %"PRIu32" /= part %u start = %"PRIu32"",
+ title, i, start[i] + len[i]/SECTORSZ, i + 1, start[i + 1]);
+ }
+
+ put_file(mkident(VOB, title, 1),
+ start[0], start[npart - 1] + SECTORS(len[npart - 1]));
+}
+
+static int compare_event(const void *a, const void *b)
+{
+ const struct event *eva = a, *evb = b;
+
+ if (eva->pos < evb->pos) return (-1);
+ else if (eva->pos > evb->pos) return (+1);
+
+ if (eva->ev < evb->ev) return (-1);
+ else if (eva->ev > evb->ev) return (+1);
+
+ if (eva->file < evb->file) return (-1);
+ else if (eva->file > evb->file) return (+1);
+
+ return (0);
+}
+
+static int progresslen = 0;
+
+static void clear_progress_internal(void)
+ { while (progresslen) { fputs("\b \b", stdout); progresslen--; } }
+static void clear_progress(void)
+ { clear_progress_internal(); fflush(stdout); }
+static void vappend_progress(const char *fmt, va_list ap)
+ { progresslen += vprintf(fmt, ap); }
+__attribute__((format(printf, 1, 2)))
+static void append_progress(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vappend_progress(fmt, ap);
+ va_end(ap);
+}
+__attribute__((format(printf, 1, 2)))
+static void print_progress(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ clear_progress_internal();
+ vappend_progress(fmt, ap);
+ va_end(ap);
+}
+
+struct source {
+ dvd_reader_t *dvd;
+ int dvdfd;
+ struct file *file;
+ dvd_file_t *vob;
+
+ uint32_t last_pos, limit, nsectors, ndone;
+ struct timeval last_time;
+ double wsum, wcount;
+ const char *mapfile; FILE *mapfp;
+};
+#define SOURCE_INIT { 0, -1, 0, 0, 0, 0, 0, 0, { 0, 0 }, 0.0, 0.0, 0, 0 }
+
+static void report_progress(struct source *src, uint32_t pos)
+{
+ char etastr[32];
+ struct timeval now;
+ int eta;
+ double t, f, g, rate;
+ char *unit;
+
+#define ALPHA 0.02
+#define BETA (1 - ALPHA)
+
+ gettimeofday(&now, 0);
+ t = (now.tv_sec - src->last_time.tv_sec) +
+ (now.tv_usec - src->last_time.tv_usec)/1000000.0;
+
+ if (t) {
+ g = src->wcount ? pow(BETA, t) : 0.0; f = (1 - g)/(1 - BETA);
+ src->wsum = f*(pos - src->last_pos)/t + g*src->wsum;
+ src->wcount = f + g*src->wcount;
+ src->ndone += pos - src->last_pos;
+ src->last_time = now; src->last_pos = pos;
+ }
+
+ if (!src->wsum || !src->wcount)
+ { rate = 0; strcpy(etastr, "???"); }
+ else {
+ rate = src->wsum/src->wcount;
+ eta = (int)((src->nsectors - src->ndone)/rate);
+ sprintf(etastr, "%d:%02d:%02d", eta/3600, (eta/60)%60, eta%60);
+ }
+
+ rate *= SECTORSZ; unit = "";
+ if (rate > 128) { rate /= 1024; unit = "k"; }
+ if (rate > 128) { rate /= 1024; unit = "M"; }
+ if (rate > 128) { rate /= 1024; unit = "G"; }
+
+ print_progress("copied %.1f%% (%"PRIu32" of %"PRIu32"; %.1f %sB/s, ETA %s)",
+ src->ndone*100.0/src->nsectors, pos, src->limit,
+ rate, unit, etastr);
+ if (src->file && id_kind(src->file->id) == VOB) {
+ append_progress(" -- %s %d %3.1f%%",
+ id_part(src->file->id) ? "title" : "menu",
+ id_title(src->file->id),
+ (pos - src->file->start)*100.0/
+ (src->file->end - src->file->start));
+ }
+
+#undef ALPHA
+#undef BETA
+}
+
+static void report_bad_blocks_progress(struct source *src,
+ uint32_t lo, uint32_t hi, int err)
+{
+ report_progress(src, hi);
+
+ if (lo == hi) append_progress(": retrying bad sector");
+ else
+ append_progress(": %"PRIu32" bad %s",
+ hi - lo, hi == lo + 1 ? "sector" : "sectors");
+ if (err != EIO) append_progress(" (%s)", strerror(err));
+ fflush(stdout);
+}
+
+static ssize_t read_sectors(struct source *src, uint32_t pos,
+ void *buf, uint32_t want)
+{
+ ssize_t n;
+
+again:
+ if (src->vob)
+ n = DVDReadBlocks(src->vob, pos - src->file->start, want, buf);
+ else if (src->file) {
+ if (lseek(src->dvdfd, (off_t)pos*SECTORSZ, SEEK_SET) < 0)
+ bail_syserr(errno, "failed to seek to sector %"PRIu32"", pos);
+ n = read(src->dvdfd, buf, want*SECTORSZ);
+ if (n >= 0) n /= SECTORSZ;
+ } else {
+ memset(buf, 0, want*SECTORSZ);
+ n = want;
+ }
+
+ if (n < 0 && errno == EINTR) goto again;
+ return (n);
+}
+
+static void carefully_write(int fd, const void *buf, size_t sz)
+{
+ const unsigned char *p = buf;
+ ssize_t n;
+
+ if (fd < 0) return;
+ while (sz) {
+ n = write(fd, p, sz);
+ if (n < 0) {
+ if (errno == EINTR) continue;
+ bail_syserr(errno, "failed to write to output file");
+ }
+ if (!n) bail("unexpected short write to output file");
+ p += n; sz -= n;
+ }
+}
+
+static void emit(struct source *src, int outfd, uint32_t start, uint32_t end)
+{
+#define BUFSECTORS 512
+
+ int least, i;
+ unsigned char buf[BUFSECTORS*SECTORSZ];
+ uint32_t pos;
+ uint32_t bad_lo, bad_hi, good, step;
+ size_t want;
+ ssize_t n;
+ static int first_time = 1;
+#ifdef DEBUG
+ struct file *f;
+ char fn[MAXFNSZ];
+ int act = -1;
+#endif
+
+ least = least_live();
+
+#ifdef DEBUG
+ printf(";; %8"PRIu32" .. %"PRIu32"\n", start, end);
+
+ for (i = 0; i < filetab.n; i++) {
+ if (!livep(i)) continue;
+ if (act == -1) act = i;
+ f = &filetab.v[i]; store_filename(fn, f->id);
+ printf(";;\t\t%8"PRIu32" .. %-8"PRIu32" %s\n",
+ start - f->start, end - f->start, fn);
+ }
+ if (act == -1) printf(";;\t\t#<no live source>\n");
+ assert(act == least);
+#endif
+
+ if (least == -1)
+ { src->file = 0; src->vob = 0; }
+ else {
+ src->file = &filetab.v[least];
+ switch (id_kind(src->file->id)) {
+ case RAW:
+ src->vob = 0;
+ break;
+ case VOB:
+ if (first_time) { clear_progress(); first_time = 0; }
+ src->vob = DVDOpenFile(src->dvd, id_title(src->file->id),
+ id_part(src->file->id)
+ ? DVD_READ_TITLE_VOBS
+ : DVD_READ_MENU_VOBS);
+ if (!src->vob)
+ bail("failed to open %s %u",
+ id_part(src->file->id) ? "title" : "menu",
+ id_title(src->file->id));
+ break;
+ default:
+ abort();
+ }
+ }
+
+ pos = start;
+ while (pos < end) {
+ want = end - pos; if (want > BUFSECTORS) want = BUFSECTORS;
+ n = read_sectors(src, pos, buf, want);
+
+ if (n <= 0) {
+ report_bad_blocks_progress(src, pos, pos, errno);
+ for (i = 0; i < 4; i++) {
+ n = read_sectors(src, pos, buf, 1);
+ if (n > 0) {
+ clear_progress();
+ fprintf(stderr, "%s: sector %"PRIu32" read ok after retry\n",
+ prog, pos);
+ bad_lo = bad_hi = pos;
+ goto recovered;
+ }
+ }
+
+ bad_lo = pos; step = 1; bad_hi = pos + 1;
+ for (;;) {
+ report_bad_blocks_progress(src, bad_lo, bad_hi, errno);
+ if (bad_hi >= end) {
+ clear_progress();
+ fprintf(stderr, "%s: giving up on this extent\n", prog);
+ n = 0; goto recovered;
+ }
+ step *= 2;
+ if (step > end - bad_lo) step = end - bad_lo;
+ pos = bad_lo + step - 1;
+ n = read_sectors(src, pos, buf, 1);
+ if (n > 0) break;
+ bad_hi = pos + 1;
+ }
+
+ good = pos;
+ while (good > bad_hi) {
+ report_bad_blocks_progress(src, bad_lo, bad_hi, errno);
+ pos = bad_hi + (good - bad_hi)/2;
+ n = read_sectors(src, pos, buf, 1);
+ if (n > 0) good = pos;
+ else bad_hi = pos + 1;
+ }
+ recovered:
+ if (bad_hi > bad_lo) {
+ clear_progress();
+ fprintf(stderr, "%s: skipping %"PRIu32" bad sectors "
+ "(%"PRIu32" .. %"PRIu32")\n",
+ prog, bad_hi - bad_lo, bad_lo, bad_hi);
+ if (src->mapfile) {
+ if (!src->mapfp) {
+ src->mapfp = fopen(src->mapfile, "w");
+ if (!src->mapfp)
+ bail_syserr(errno, "failed to open bad-sector map file `%s'",
+ optarg);
+ fprintf(src->mapfp, "## bad sector map\n\n");
+ }
+ fprintf(src->mapfp, "%"PRIu32" %"PRIu32"\n", bad_lo, bad_hi);
+ fflush(src->mapfp);
+ if (ferror(src->mapfp))
+ bail_syserr(errno, "error writing bad-sector map file");
+ }
+ if (outfd >= 0 &&
+ lseek(outfd, (off_t)(bad_hi - bad_lo)*SECTORSZ, SEEK_CUR) < 0)
+ bail_syserr(errno, "failed to seek past bad sectors");
+ status = 1;
+ }
+ pos = bad_hi;
+ }
+
+ if (n > 0) { carefully_write(outfd, buf, n*SECTORSZ); pos += n; }
+ report_progress(src, pos); fflush(stdout);
+ }
+
+ if (src->vob) { DVDCloseFile(src->vob); src->vob = 0; }
+
+#undef BUFSECTORS
+}
+
+#ifdef notdef
+static void logfn(void *p, dvd_logger_level_t lev,
+ const char *fmt, va_list ap)
+{
+ switch (lev) {
+ case DVD_LOGGER_LEVEL_ERROR:
+ fprintf("%s (libdvdread error): ", prog);
+ break;
+ case DVD_LOGGER_LEVEL_WARN:
+ fprintf("%s (libdvdread warning): ", prog);
+ break;
+ default:
+ return;
+ }
+ vfprintf(stderr, fmt, ap);
+ fputc('\n', stderr);
+}
+static const dvd_logger_cb logger = { logfn };
+#endif
+
+struct buf {
+ char *p;
+ size_t n, sz;
+};
+#define BUF_INIT { 0, 0, 0 }
+#define BUF_REWIND(b) do { (b)->n = 0; } while (0)
+#define BUF_FREE(b) do { \
+ buf *_b = (b); \
+ free(_b->p); _b->p = 0; _b->n = _b->sz = 0; \
+} while (0)
+#define BUF_PUTC(b, ch) do { \
+ struct buf *_b = (b); \
+ if (_b->n >= _b->sz) { \
+ _b->sz = _b->sz ? 2*_b->sz : 32; \
+ _b->p = realloc(_b->p, _b->sz); \
+ if (!_b->p) bail("out of memory allocating %zu bytes", _b->sz); \
+ } \
+ _b->p[_b->n] = (ch); \
+} while (0)
+
+static int read_line(FILE *fp, struct buf *b)
+{
+ int ch;
+
+ ch = getc(fp);
+ if (ch == EOF)
+ return (-1);
+ else if (ch != '\n') do {
+ BUF_PUTC(b, ch); b->n++;
+ ch = getc(fp);
+ } while (ch != EOF && ch != '\n');
+ BUF_PUTC(b, 0);
+ return (0);
+}
+
+int main(int argc, char *argv[])
+{
+ unsigned f = 0;
+ char *p;
+ uint64_t volsz;
+ uint32_t pos;
+ off_t off;
+ struct source src = SOURCE_INIT;
+ unsigned long start, end;
+ const struct event *ev;
+ const char *device = "/dev/dvd", *outfile = 0;
+ int opt, err, outfd = -1, blksz;
+ size_t i;
+ FILE *fp;
+ struct buf buf = BUF_INIT;
+#ifdef DEBUG
+ const struct file *file;
+ char fn[MAXFNSZ];
+#endif
+
+#define f_bogus 1u
+#define f_continue 2u
+#define f_fixup 4u
+#define f_write 256u
+
+ p = strrchr(argv[0], '/'); prog = p ? p + 1 : argv[0];
+ for (;;) {
+ opt = getopt(argc, argv, "hD:FR:b:co:r:"); if (opt < 0) break;
+ switch (opt) {
+ case 'h': usage(stderr); exit(0);
+ case 'D': device = optarg; break;
+ case 'F': f |= f_fixup; break;
+ case 'R':
+ fp = fopen(optarg, "r");
+ if (!fp)
+ bail_syserr(errno, "failed to open ranges file `%s'", optarg);
+ i = 0;
+ for (;;) {
+ BUF_REWIND(&buf); if (read_line(fp, &buf)) break;
+ p = buf.p; i++;
+ while (ISSPACE(*p)) p++;
+ if (!*p || *p == '#') continue;
+ if (!ISDIGIT(*p)) goto bad_range_file;
+ start = strtoul(p, &p, 0);
+ if (errno || !ISSPACE(*p)) goto bad_range_file;
+ do p++; while (ISSPACE(*p));
+ if (!ISDIGIT(*p)) goto bad_range_file;
+ end = strtoul(p, &p, 0);
+ if (errno || (*p && !ISSPACE(*p))) goto bad_range_file;
+ while (ISSPACE(*p)) p++;
+ if (*p) goto bad_range_file;
+ if (start > end) goto bad_range_file;
+ if (start < end) {
+ put_event(EV_WRITE, 0, start);
+ put_event(EV_STOP, 0, end);
+ }
+ }
+ if (ferror(fp))
+ bail_syserr(errno, "failed to read ranges file `%s'", optarg);
+ break;
+ bad_range_file:
+ bail("bad range `%s' at `%s' line %zu", buf.p, optarg, i);
+ case 'b':
+ if (src.mapfile) bail("can't have multiple map files");
+ src.mapfile = optarg;
+ break;
+ case 'c': f |= f_continue; break;
+ case 'o': outfile = optarg; break;
+ case 'r':
+ err = errno; errno = 0;
+ p = optarg;
+ if (*p == '-')
+ start = 0;
+ else {
+ if (!ISDIGIT(*p)) goto bad_range;
+ start = strtoul(p, &p, 0);
+ if (errno || *p != '-') goto bad_range;
+ }
+ p++;
+ if (!*p)
+ put_event(EV_WRITE, 0, start);
+ else {
+ if (!ISDIGIT(*p)) goto bad_range;
+ end = strtoul(p, &p, 0);
+ if (errno || *p) goto bad_range;
+ if (start > end) goto bad_range;
+ if (start < end) {
+ put_event(EV_WRITE, 0, start);
+ put_event(EV_STOP, 0, end);
+ }
+ }
+ errno = err;
+ break;
+ bad_range:
+ bail("bad range `%s'", optarg);
+ break;
+ default: f |= f_bogus; break;
+ }
+ }
+ if (optind < argc) f |= f_bogus;
+ if (f&f_bogus) { usage(stderr); exit(2); }
+
+ src.dvdfd = open(device, O_RDONLY);
+ if (src.dvdfd < 0) bail_syserr(errno, "failed to open device `%s'", device);
+ if (ioctl(src.dvdfd, BLKSSZGET, &blksz))
+ bail_syserr(errno, "failed to get block size for `%s'", device);
+ if (ioctl(src.dvdfd, BLKGETSIZE64, &volsz))
+ bail_syserr(errno, "failed to get volume size for `%s'", device);
+
+ if (blksz != SECTORSZ)
+ bail("device `%s' block size %d /= %d", device, blksz, SECTORSZ);
+ if (volsz%SECTORSZ)
+ bail("device `%s' volume size %"PRIu64" not a multiple of %d",
+ device, volsz, SECTORSZ);
+
+ if (outfile) {
+ outfd = open(outfile, O_WRONLY | O_CREAT, 0666);
+ if (outfd < 0)
+ bail_syserr(errno, "failed to create output file `%s'", outfile);
+ }
+
+ if (f&f_continue) {
+ if (!outfile) bail("can't continue without output file");
+ off = lseek(outfd, 0, SEEK_END);
+ if (off < 0)
+ bail_syserr(errno, "failed to seek to end of output file `%s'",
+ outfile);
+ put_event(EV_WRITE, 0, off/SECTORSZ);
+ } else if (!eventq.n && !(f&f_fixup))
+ put_event(EV_WRITE, 0, 0);
+
+#ifdef notdef
+ src.dvd = DVDOpen2(0, &logger, device);
+#else
+ src.dvd = DVDOpen(device);
+#endif
+ if (!src.dvd) bail("failed to open DVD on `%s'", device);
+
+ /* It's fast enough just to check everything. */
+ put_menu(src.dvd, 0);
+ for (i = 1; i < 100; i++) {
+ put_menu(src.dvd, i);
+ put_title(src.dvd, i);
+ }
+ put_file(mkident(RAW, 0, 0), 0, volsz/SECTORSZ);
+ assert(filetab.n <= MAXFILES);
+
+ for (i = 0, src.limit = 0; i < filetab.n; i++)
+ if (filetab.v[i].end > src.limit) src.limit = filetab.v[i].end;
+
+ if (end > src.limit) end = src.limit;
+
+#ifdef DEBUG
+ printf("\n;; files:\n");
+ for (i = 0; i < filetab.n; i++) {
+ file = &filetab.v[i];
+ store_filename(fn, file->id);
+ printf(";;\t%8"PRIu32" %s\n", file->start, fn);
+ }
+#endif
+
+ qsort(eventq.v, eventq.n, sizeof(struct event), compare_event);
+
+ f &= ~f_write; start = 0;
+ for (i = 0; i < eventq.n; i++) {
+ ev = &eventq.v[i];
+ switch (ev->ev) {
+ case EV_WRITE:
+ if (f&f_write)
+ bail("overlapping ranges: range from %lu still open at %"PRIu32"",
+ start, ev->pos);
+ f |= f_write; start = ev->pos;
+ break;
+ case EV_STOP:
+ f &= ~f_write;
+ break;
+ }
+ }
+
+ f &= ~f_write; start = 0;
+ for (i = 0; i < eventq.n; i++) {
+ ev = &eventq.v[i];
+ switch (ev->ev) {
+ case EV_WRITE: start = ev->pos; f |= f_write; break;
+ case EV_STOP: src.nsectors += ev->pos - start; f &= ~f_write; break;
+ }
+ if (ev->pos >= src.limit) break;
+ if (f&f_fixup) start = ev->pos;
+ }
+ eventq.n = i;
+ if (f&f_fixup) {
+ put_event(EV_WRITE, 0, start);
+ f |= f_write;
+ }
+ if (f&f_write) {
+ src.nsectors += src.limit - start;
+ put_event(EV_STOP, 0, src.limit);
+ }
+ f &= ~f_write;
+
+#ifdef DEBUG
+ printf("\n;; event sweep:\n");
+#endif
+ for (pos = 0, i = 0; i < eventq.n; i++) {
+ ev = &eventq.v[i];
+ if (ev->pos > pos) {
+ if (f&f_write) emit(&src, outfd, pos, ev->pos);
+ pos = ev->pos;
+#ifdef DEBUG
+ clear_progress();
+ printf(";;\n");
+#endif
+ }
+ switch (ev->ev) {
+ case EV_BEGIN:
+ set_live(ev->file);
+#ifdef DEBUG
+ store_filename(fn, filetab.v[ev->file].id);
+ clear_progress();
+ printf(";; %8"PRIu32": begin `%s'\n", pos, fn);
+#endif
+ break;
+ case EV_WRITE:
+ gettimeofday(&src.last_time, 0); src.last_pos = pos;
+ if (outfd >= 0 &&
+ lseek(outfd, (off_t)ev->pos*SECTORSZ, SEEK_SET) < 0)
+ bail_syserr(errno,
+ "failed to seek to resume position "
+ "(sector %"PRIu32") in output file `%s'",
+ ev->pos, outfile);
+#ifdef DEBUG
+ clear_progress();
+ printf(";; %8"PRIu32": begin write\n", pos);
+#endif
+ f |= f_write;
+ break;
+ case EV_STOP:
+ f &= ~f_write;
+#ifdef DEBUG
+ clear_progress();
+ printf(";; %8"PRIu32": end write\n", pos);
+#endif
+ break;
+ case EV_END:
+ clear_live(ev->file);
+#ifdef DEBUG
+ store_filename(fn, filetab.v[ev->file].id);
+ clear_progress();
+ printf(";; %8"PRIu32": end `%s'\n", pos, fn);
+#endif
+ break;
+ default: abort();
+ }
+ }
+
+ if (progresslen) putchar('\n');
+
+ if (outfd >= 0 && ftruncate(outfd, (off_t)src.limit*SECTORSZ) < 0)
+ bail_syserr(errno, "failed to set output file `%s' length", outfile);
+
+ if (src.dvd) DVDClose(src.dvd);
+ if (src.dvdfd >= 0) close(src.dvdfd);
+ if (outfd >= 0) close(outfd);
+ if (src.mapfp) {
+ if (ferror(src.mapfp) || fclose(src.mapfp))
+ bail_syserr(errno, "error writing bad-sector map file");
+ }
+
+#undef f_bogus
+#undef f_continue
+#undef f_fixup
+#undef f_write
+
+ return (status);
+}
~mdw / dvdrip / commitdiff