Commit | Line | Data |
---|---|---|
dc53ebfa MW |
1 | #include "lib.h" |
2 | ||
3 | const char *prog = "<unset>"; | |
4 | ||
5 | void set_prog(const char *p) | |
6 | { const char *q = strrchr(p, '/'); prog = q ? q + 1 : p; } | |
7 | ||
8 | void vmoan(const char *fmt, va_list ap) | |
7ea9ce2b | 9 | { vmoan_syserr(0, fmt, ap); } |
dc53ebfa | 10 | |
7ea9ce2b | 11 | void vmoan_syserr(int err, const char *fmt, va_list ap) |
dc53ebfa | 12 | { |
7ea9ce2b MW |
13 | fprintf(stderr, "%s: ", prog); |
14 | vfprintf(stderr, fmt, ap); | |
15 | if (err) fprintf(stderr, ": %s", strerror(errno)); | |
dc53ebfa MW |
16 | fputc('\n', stderr); |
17 | } | |
18 | ||
7ea9ce2b MW |
19 | void moan(const char *fmt, ...) |
20 | { va_list ap; va_start(ap, fmt); vmoan(fmt, ap); va_end(ap); } | |
dc53ebfa | 21 | |
7ea9ce2b MW |
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); } | |
24 | ||
25 | void bail(const char *fmt, ...) | |
26 | { va_list ap; va_start(ap, fmt); vmoan(fmt, ap); va_end(ap); exit(2); } | |
dc53ebfa | 27 | |
dc53ebfa MW |
28 | void bail_syserr(int err, const char *fmt, ...) |
29 | { | |
30 | va_list ap; | |
31 | ||
7ea9ce2b | 32 | va_start(ap, fmt); vmoan_syserr(err, fmt, ap); va_end(ap); |
dc53ebfa MW |
33 | exit(2); |
34 | } | |
35 | ||
36 | void sit(double t) | |
37 | { | |
38 | struct timeval tv; | |
39 | double whole = floor(t); | |
40 | ||
41 | if (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"); | |
44 | } | |
45 | } | |
46 | ||
00a5be1d MW |
47 | void carefully_write(int fd, const void *buf, size_t sz) |
48 | { | |
49 | const unsigned char *p = buf; | |
50 | ssize_t n; | |
51 | ||
52 | if (fd < 0) return; | |
53 | while (sz) { | |
54 | n = write(fd, p, sz); | |
55 | if (n < 0) { | |
56 | if (errno == EINTR) continue; | |
57 | bail_syserr(errno, "failed to write to output file"); | |
58 | } | |
59 | if (!n) bail("unexpected short write to output file"); | |
60 | p += n; sz -= n; | |
61 | } | |
62 | } | |
63 | ||
64 | void open_file_on_demand(const char *file, FILE **fp_inout, const char *what) | |
65 | { | |
66 | FILE *fp; | |
67 | ||
68 | if (!*fp_inout) { | |
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); | |
72 | *fp_inout = fp; | |
73 | } | |
74 | } | |
75 | ||
76 | void check_write(FILE *fp, const char *what) | |
77 | { | |
78 | fflush(fp); | |
79 | if (ferror(fp)) bail_syserr(errno, "error writing %s file", what); | |
80 | } | |
81 | ||
82 | void carefully_fclose(FILE *fp, const char *what) | |
83 | { | |
84 | if (fp && (ferror(fp) || fclose(fp))) | |
85 | bail_syserr(errno, "error writing %s file", what); | |
86 | } | |
87 | ||
dc53ebfa MW |
88 | void store_filename(char *buf, ident id) |
89 | { | |
90 | switch (id_kind(id)) { | |
91 | case RAW: | |
92 | sprintf(buf, "#<raw device>"); | |
93 | break; | |
94 | case IFO: | |
95 | if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.IFO"); | |
96 | else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.IFO", id_title(id)); | |
97 | break; | |
98 | case BUP: | |
99 | if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.BUP"); | |
100 | else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.BUP", id_title(id)); | |
101 | break; | |
102 | case VOB: | |
103 | if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.VOB"); | |
104 | else | |
105 | sprintf(buf, "/VIDEO_TS/VTS_%02u_%u.VOB", id_title(id), id_part(id)); | |
106 | break; | |
107 | default: | |
108 | abort(); | |
109 | } | |
110 | } | |
111 | ||
9b86c33f MW |
112 | static char *copy_string(char *p, const char *q) |
113 | { | |
114 | while (*q) *p++ = *q++; | |
115 | *p = 0; return (p); | |
116 | } | |
117 | ||
118 | static char *copy_hex(char *p, const unsigned char *q, size_t sz) | |
119 | { | |
120 | while (sz) { | |
121 | sprintf(p, "%02x", *q); | |
122 | p += 2; q++; sz--; | |
123 | } | |
124 | return (p); | |
125 | } | |
126 | ||
127 | int dvd_id(char *p, dvd_reader_t *dvd, unsigned f, const char *file) | |
128 | { | |
129 | char volid[33]; | |
130 | unsigned char volsetid[16], discid[16]; | |
131 | int rc; | |
132 | size_t n; | |
133 | ||
134 | rc = DVDUDFVolumeInfo(dvd, | |
135 | volid, sizeof(volid), | |
136 | volsetid, sizeof(volsetid)); | |
137 | if (!rc) { | |
138 | p = copy_string(p, volid); | |
139 | *p++ = '-'; | |
140 | for (n = sizeof(volsetid); n && !volsetid[n - 1]; n--); | |
141 | p = copy_hex(p, volsetid, n); | |
142 | } else if (f&DIF_MUSTVOLINF) { | |
143 | if (file) moan("failed to read volume info for `%s'", file); | |
144 | else moan("failed to read volume info"); | |
145 | return (-1); | |
146 | } else | |
147 | p = copy_string(p, "<error reading volume info>"); | |
148 | ||
149 | *p++ = ':'; | |
150 | rc = DVDDiscID(dvd, discid); | |
151 | if (!rc) | |
152 | p = copy_hex(p, discid, sizeof(discid)); | |
153 | else if (f&DIF_MUSTIFOHASH) { | |
154 | if (file) moan("failed to determine disc id of `%s'", file); | |
155 | else moan("failed to determine disc id"); | |
156 | return (-1); | |
157 | } else | |
158 | p = copy_string(p, "<error reading disc-id>"); | |
159 | ||
160 | return (0); | |
161 | } | |
162 | ||
dc53ebfa MW |
163 | struct progress_state progress = PROGRESS_STATE_INIT; |
164 | static struct banner_progress_item banner_progress; | |
165 | ||
166 | static void render_banner_progress(struct progress_item *item, | |
167 | struct progress_render_state *render) | |
168 | { | |
169 | struct banner_progress_item *bi = (struct banner_progress_item *)item; | |
170 | ||
171 | progress_putleft(render, " %s", bi->msg); | |
172 | progress_shownotice(render, 4, 7); | |
173 | } | |
174 | ||
175 | void show_banner(const char *msg) | |
176 | { | |
177 | banner_progress._base.render = render_banner_progress; | |
178 | progress_additem(&progress, &banner_progress._base); | |
179 | banner_progress.msg = msg; | |
180 | progress_update(&progress); | |
181 | } | |
182 | ||
183 | void hide_banner(void) | |
184 | { | |
185 | if (!progress_removeitem(&progress, &banner_progress._base)) | |
186 | progress_update(&progress); | |
187 | } | |
188 | ||
189 | #ifdef notdef | |
190 | static void logfn(void *p, dvd_logger_level_t lev, | |
191 | const char *fmt, va_list ap) | |
192 | { | |
193 | switch (lev) { | |
194 | case DVD_LOGGER_LEVEL_ERROR: | |
195 | fprintf("%s (libdvdread error): ", prog); | |
196 | break; | |
197 | case DVD_LOGGER_LEVEL_WARN: | |
198 | fprintf("%s (libdvdread warning): ", prog); | |
199 | break; | |
200 | default: | |
201 | return; | |
202 | } | |
203 | vfprintf(stderr, fmt, ap); | |
204 | fputc('\n', stderr); | |
205 | } | |
206 | static const dvd_logger_cb logger = { logfn }; | |
207 | #endif | |
208 | ||
209 | void open_dvd(const char *device, int *fd_out, dvd_reader_t **dvd_out) | |
210 | { | |
211 | int fd; | |
212 | dvd_reader_t *dvd; | |
213 | int bannerp = 0; | |
214 | ||
215 | for (;;) { | |
216 | fd = open(device, O_RDONLY); | |
217 | if (fd >= 0 || errno != ENOMEDIUM) break; | |
218 | if (!bannerp) { | |
219 | show_banner("Waiting for disc to be inserted..."); | |
220 | bannerp = 1; | |
221 | } | |
222 | sit(0.2); | |
223 | } | |
224 | if (bannerp) hide_banner(); | |
225 | if (fd < 0) bail_syserr(errno, "failed to open device `%s'", device); | |
226 | if (dvd_out) { | |
227 | #ifdef notdef | |
228 | dvd = DVDOpen2(0, &logger, device); | |
229 | #else | |
230 | dvd = DVDOpen(device); | |
231 | #endif | |
232 | if (!dvd) bail("failed to open DVD on `%s'", device); | |
233 | *dvd_out = dvd; | |
234 | } | |
235 | if (fd_out) *fd_out = fd; | |
236 | else close(fd); | |
237 | } |