+/* -*-c-*-
+ *
+ * Common functions for the DVDrip C utilities.
+ *
+ * (c) 2022 Mark Wooding
+ */
+
+/*----- Licensing notice --------------------------------------------------*
+ *
+ * This file is part of the DVD ripping toolset.
+ *
+ * DVDrip is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * DVDrip is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DVDrip. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*----- Header files ------------------------------------------------------*/
+
#include "lib.h"
+/*----- Diagnostics -------------------------------------------------------*/
+
const char *prog = "<unset>";
void set_prog(const char *p)
exit(2);
}
+/*----- Parsing utilities -------------------------------------------------*/
+
+double parse_float(const char **p_inout, unsigned f,
+ double min, double max, const char *what)
+{
+ const char *p;
+ char *q;
+ double x;
+ int err;
+
+ err = errno; errno = 0;
+ p = *p_inout;
+ x = strtod(p, &q);
+ if (errno || x < min || x > max || (!(f&PNF_JUNK) && *q))
+ bail("bad %s `%s'", what, p);
+ *p_inout = q; errno = err;
+ return (x);
+}
+
+long parse_int(const char **p_inout, unsigned f,
+ long min, long max, const char *what)
+{
+ const char *p;
+ char *q;
+ long x;
+ int err;
+
+ err = errno; errno = 0;
+ p = *p_inout;
+ x = strtoul(p, &q, 0);
+ if (errno || x < min || x > max || (!(f&PNF_JUNK) && *q))
+ bail("bad %s `%s'", what, p);
+ *p_inout = q; errno = err;
+ return (x);
+}
+
+/*----- Resizing buffers and arrays ---------------------------------------*/
+
+void buf__grow(struct buf *b)
+{
+ 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);
+}
+
+void *vec__grow(void *p, size_t esz, size_t *sz_inout)
+{
+ size_t sz = *sz_inout, want;
+
+ sz = sz ? 2*sz : 32;
+ want = sz*esz;
+ p = realloc(p, want);
+ if (!p) bail("out of memory allocating %zu bytes", want);
+ *sz_inout = sz; return (p);
+}
+
+/*----- System utilities --------------------------------------------------*/
+
void sit(double t)
{
struct timeval tv;
}
}
+double tvdiff(const struct timeval *tv_lo, const struct timeval *tv_hi)
+{
+ return ((tv_hi->tv_sec - tv_lo->tv_sec) +
+ (tv_hi->tv_usec - tv_lo->tv_usec)/1.0e6);
+}
+
+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); ch = getc(fp); } while (ch != EOF && ch != '\n');
+ buf_putz(b);
+ return (0);
+}
+
void carefully_write(int fd, const void *buf, size_t sz)
{
const unsigned char *p = buf;
bail_syserr(errno, "error writing %s file", what);
}
+off_t device_size(int fd, const char *file, int *blksz_out)
+{
+ struct stat st;
+ uint64_t volsz;
+
+ if (fstat(fd, &st))
+ bail_syserr(errno, "failed to obtain status for `%s'", file);
+ if (S_ISREG(st.st_mode))
+ volsz = st.st_size;
+ else if (S_ISBLK(st.st_mode)) {
+ if (ioctl(fd, BLKGETSIZE64, &volsz))
+ bail_syserr(errno, "failed to get volume size for `%s'", file);
+ if (ioctl(fd, BLKSSZGET, blksz_out))
+ bail_syserr(errno, "failed to get block size for `%s'", file);
+ } else
+ bail("can't read size for `%s': expected file or block device", file);
+ return ((off_t)volsz);
+}
+
+/*----- Progress utilities ------------------------------------------------*/
+
+struct progress_state progress = PROGRESS_STATE_INIT;
+static struct banner_progress_item banner_progress;
+
+static void render_banner_progress(struct progress_item *item,
+ struct progress_render_state *render)
+{
+ struct banner_progress_item *bi = (struct banner_progress_item *)item;
+
+ progress_putleft(render, " %s", bi->msg);
+ progress_shownotice(render, 4, 7);
+}
+
+void show_banner(const char *msg)
+{
+ banner_progress._base.render = render_banner_progress;
+ progress_additem(&progress, &banner_progress._base);
+ banner_progress.msg = msg;
+ progress_update(&progress);
+}
+
+void hide_banner(void)
+{
+ if (!progress_removeitem(&progress, &banner_progress._base))
+ progress_update(&progress);
+}
+
+/*----- DVD utilities -----------------------------------------------------*/
+
+#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
+
+int open_dvd(const char *device, int mode,
+ int *fd_out, dvd_reader_t **dvd_out)
+{
+ int fd = -1;
+ dvd_reader_t *dvd = 0;
+ int bannerp = 0, rc;
+
+ for (;;) {
+ fd = open(device, mode);
+ if (fd >= 0 || errno != ENOMEDIUM) break;
+ if (!bannerp) {
+ show_banner("Waiting for disc to be inserted...");
+ bannerp = 1;
+ }
+ sit(0.2);
+ }
+ if (bannerp) hide_banner();
+
+ if (fd < 0) {
+ moan_syserr(errno, "failed to open device `%s'", device);
+ rc = -1; goto end;
+ }
+
+ if (dvd_out) {
+#ifdef notdef
+ dvd = DVDOpen2(0, &logger, device);
+#else
+ dvd = DVDOpen(device);
+#endif
+ if (!dvd) {
+ moan("failed to open DVD on `%s'", device);
+ rc = -1; goto end;
+ }
+ }
+
+ if (fd_out) { *fd_out = fd; fd = -1; }
+ if (dvd_out) { *dvd_out = dvd; dvd = 0; }
+ rc = 0;
+
+end:
+ if (fd >= 0) close(fd);
+ DVDClose(dvd);
+ return (rc);
+}
+
void store_filename(char *buf, ident id)
{
switch (id_kind(id)) {
return (0);
}
-struct progress_state progress = PROGRESS_STATE_INIT;
-static struct banner_progress_item banner_progress;
-
-static void render_banner_progress(struct progress_item *item,
- struct progress_render_state *render)
-{
- struct banner_progress_item *bi = (struct banner_progress_item *)item;
-
- progress_putleft(render, " %s", bi->msg);
- progress_shownotice(render, 4, 7);
-}
-
-void show_banner(const char *msg)
-{
- banner_progress._base.render = render_banner_progress;
- progress_additem(&progress, &banner_progress._base);
- banner_progress.msg = msg;
- progress_update(&progress);
-}
-
-void hide_banner(void)
-{
- if (!progress_removeitem(&progress, &banner_progress._base))
- progress_update(&progress);
-}
-
-#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
-
-void open_dvd(const char *device, int *fd_out, dvd_reader_t **dvd_out)
-{
- int fd;
- dvd_reader_t *dvd;
- int bannerp = 0;
-
- for (;;) {
- fd = open(device, O_RDONLY);
- if (fd >= 0 || errno != ENOMEDIUM) break;
- if (!bannerp) {
- show_banner("Waiting for disc to be inserted...");
- bannerp = 1;
- }
- sit(0.2);
- }
- if (bannerp) hide_banner();
- if (fd < 0) bail_syserr(errno, "failed to open device `%s'", device);
- if (dvd_out) {
-#ifdef notdef
- dvd = DVDOpen2(0, &logger, device);
-#else
- dvd = DVDOpen(device);
-#endif
- if (!dvd) bail("failed to open DVD on `%s'", device);
- *dvd_out = dvd;
- }
- if (fd_out) *fd_out = fd;
- else close(fd);
-}
+/*----- That's all, folks -------------------------------------------------*/
~mdw / dvdrip / blobdiff