repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * This file is part of FFmpeg. | |
| 3 | * | |
| 4 | * FFmpeg is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU Lesser General Public | |
| 6 | * License as published by the Free Software Foundation; either | |
| 7 | * version 2.1 of the License, or (at your option) any later version. | |
| 8 | * | |
| 9 | * FFmpeg is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | * Lesser General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU Lesser General Public | |
| 15 | * License along with FFmpeg; if not, write to the Free Software | |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | */ | |
| 18 | ||
| 19 | /* | |
| 20 | * This file was copied from the following newsgroup posting: | |
| 21 | * | |
| 22 | * Newsgroups: mod.std.unix | |
| 23 | * Subject: public domain AT&T getopt source | |
| 24 | * Date: 3 Nov 85 19:34:15 GMT | |
| 25 | * | |
| 26 | * Here's something you've all been waiting for: the AT&T public domain | |
| 27 | * source for getopt(3). It is the code which was given out at the 1985 | |
| 28 | * UNIFORUM conference in Dallas. I obtained it by electronic mail | |
| 29 | * directly from AT&T. The people there assure me that it is indeed | |
| 30 | * in the public domain. | |
| 31 | */ | |
| 32 | ||
| 33 | #include <stdio.h> | |
| 34 | #include <string.h> | |
| 35 | ||
| 36 | static int opterr = 1; | |
| 37 | static int optind = 1; | |
| 38 | static int optopt; | |
| 39 | static char *optarg; | |
| 40 | ||
| 41 | static int getopt(int argc, char *argv[], char *opts) | |
| 42 | { | |
| 43 | static int sp = 1; | |
| 44 | int c; | |
| 45 | char *cp; | |
| 46 | ||
| 47 | if (sp == 1) { | |
| 48 | if (optind >= argc || | |
| 49 | argv[optind][0] != '-' || argv[optind][1] == '\0') | |
| 50 | return EOF; | |
| 51 | else if (!strcmp(argv[optind], "--")) { | |
| 52 | optind++; | |
| 53 | return EOF; | |
| 54 | } | |
| 55 | } | |
| 56 | optopt = c = argv[optind][sp]; | |
| 57 | if (c == ':' || !(cp = strchr(opts, c))) { | |
| 58 | fprintf(stderr, ": illegal option -- %c\n", c); | |
| 59 | if (argv[optind][++sp] == '\0') { | |
| 60 | optind++; | |
| 61 | sp = 1; | |
| 62 | } | |
| 63 | return '?'; | |
| 64 | } | |
| 65 | if (*++cp == ':') { | |
| 66 | if (argv[optind][sp+1] != '\0') | |
| 67 | optarg = &argv[optind++][sp+1]; | |
| 68 | else if(++optind >= argc) { | |
| 69 | fprintf(stderr, ": option requires an argument -- %c\n", c); | |
| 70 | sp = 1; | |
| 71 | return '?'; | |
| 72 | } else | |
| 73 | optarg = argv[optind++]; | |
| 74 | sp = 1; | |
| 75 | } else { | |
| 76 | if (argv[optind][++sp] == '\0') { | |
| 77 | sp = 1; | |
| 78 | optind++; | |
| 79 | } | |
| 80 | optarg = NULL; | |
| 81 | } | |
| 82 | ||
| 83 | return c; | |
| 84 | } |