3 const char *prog = "<unset>";
5 void set_prog(const char *p)
6 { const char *q = strrchr(p, '/'); prog = q ? q + 1 : p; }
8 void vmoan(const char *fmt, va_list ap)
9 { vmoan_syserr(0, fmt, ap); }
11 void vmoan_syserr(int err, const char *fmt, va_list ap)
13 fprintf(stderr, "%s: ", prog);
14 vfprintf(stderr, fmt, ap);
15 if (err) fprintf(stderr, ": %s", strerror(errno));
19 void moan(const char *fmt, ...)
20 { va_list ap; va_start(ap, fmt); vmoan(fmt, ap); va_end(ap); }
22 void moan_syserr(int err, const char *fmt, ...)
23 { va_list ap; va_start(ap, fmt); vmoan_syserr(err, fmt, ap); va_end(ap); }
25 void bail(const char *fmt, ...)
26 { va_list ap; va_start(ap, fmt); vmoan(fmt, ap); va_end(ap); exit(2); }
28 void bail_syserr(int err, const char *fmt, ...)
32 va_start(ap, fmt); vmoan_syserr(err, fmt, ap); va_end(ap);
39 double whole = floor(t);
42 tv.tv_sec = whole; tv.tv_usec = floor((t - whole)*1.0e6) + 1;
43 if (select(0, 0, 0, 0, &tv) < 0) bail_syserr(errno, "failed to sleep");
47 void carefully_write(int fd, const void *buf, size_t sz)
49 const unsigned char *p = buf;
56 if (errno == EINTR) continue;
57 bail_syserr(errno, "failed to write to output file");
59 if (!n) bail("unexpected short write to output file");
64 void open_file_on_demand(const char *file, FILE **fp_inout, const char *what)
69 fp = fopen(file, "w");
70 if (!fp) bail_syserr(errno, "failed to open %s file `%s'", what, file);
71 fprintf(fp, "## %s\n\n", what);
76 void check_write(FILE *fp, const char *what)
79 if (ferror(fp)) bail_syserr(errno, "error writing %s file", what);
82 void carefully_fclose(FILE *fp, const char *what)
84 if (fp && (ferror(fp) || fclose(fp)))
85 bail_syserr(errno, "error writing %s file", what);
88 off_t device_size(int fd, const char *file, int *blksz_out)
94 bail_syserr(errno, "failed to obtain status for `%s'", file);
95 if (S_ISREG(st.st_mode))
97 else if (S_ISBLK(st.st_mode)) {
98 if (ioctl(fd, BLKGETSIZE64, &volsz))
99 bail_syserr(errno, "failed to get volume size for `%s'", file);
100 if (ioctl(fd, BLKSSZGET, blksz_out))
101 bail_syserr(errno, "failed to get block size for `%s'", file);
103 bail("can't read size for `%s': expected file or block device", file);
104 return ((off_t)volsz);
107 void store_filename(char *buf, ident id)
109 switch (id_kind(id)) {
111 sprintf(buf, "#<raw device>");
114 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.IFO");
115 else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.IFO", id_title(id));
118 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.BUP");
119 else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.BUP", id_title(id));
122 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.VOB");
124 sprintf(buf, "/VIDEO_TS/VTS_%02u_%u.VOB", id_title(id), id_part(id));
131 static char *copy_string(char *p, const char *q)
133 while (*q) *p++ = *q++;
137 static char *copy_hex(char *p, const unsigned char *q, size_t sz)
140 sprintf(p, "%02x", *q);
146 int dvd_id(char *p, dvd_reader_t *dvd, unsigned f, const char *file)
149 unsigned char volsetid[16], discid[16];
153 rc = DVDUDFVolumeInfo(dvd,
154 volid, sizeof(volid),
155 volsetid, sizeof(volsetid));
157 p = copy_string(p, volid);
159 for (n = sizeof(volsetid); n && !volsetid[n - 1]; n--);
160 p = copy_hex(p, volsetid, n);
161 } else if (f&DIF_MUSTVOLINF) {
162 if (file) moan("failed to read volume info for `%s'", file);
163 else moan("failed to read volume info");
166 p = copy_string(p, "<error reading volume info>");
169 rc = DVDDiscID(dvd, discid);
171 p = copy_hex(p, discid, sizeof(discid));
172 else if (f&DIF_MUSTIFOHASH) {
173 if (file) moan("failed to determine disc id of `%s'", file);
174 else moan("failed to determine disc id");
177 p = copy_string(p, "<error reading disc-id>");
182 struct progress_state progress = PROGRESS_STATE_INIT;
183 static struct banner_progress_item banner_progress;
185 static void render_banner_progress(struct progress_item *item,
186 struct progress_render_state *render)
188 struct banner_progress_item *bi = (struct banner_progress_item *)item;
190 progress_putleft(render, " %s", bi->msg);
191 progress_shownotice(render, 4, 7);
194 void show_banner(const char *msg)
196 banner_progress._base.render = render_banner_progress;
197 progress_additem(&progress, &banner_progress._base);
198 banner_progress.msg = msg;
199 progress_update(&progress);
202 void hide_banner(void)
204 if (!progress_removeitem(&progress, &banner_progress._base))
205 progress_update(&progress);
209 static void logfn(void *p, dvd_logger_level_t lev,
210 const char *fmt, va_list ap)
213 case DVD_LOGGER_LEVEL_ERROR:
214 fprintf("%s (libdvdread error): ", prog);
216 case DVD_LOGGER_LEVEL_WARN:
217 fprintf("%s (libdvdread warning): ", prog);
222 vfprintf(stderr, fmt, ap);
225 static const dvd_logger_cb logger = { logfn };
228 void open_dvd(const char *device, int *fd_out, dvd_reader_t **dvd_out)
235 fd = open(device, O_RDONLY);
236 if (fd >= 0 || errno != ENOMEDIUM) break;
238 show_banner("Waiting for disc to be inserted...");
243 if (bannerp) hide_banner();
244 if (fd < 0) bail_syserr(errno, "failed to open device `%s'", device);
247 dvd = DVDOpen2(0, &logger, device);
249 dvd = DVDOpen(device);
251 if (!dvd) bail("failed to open DVD on `%s'", device);
254 if (fd_out) *fd_out = fd;