| Line | Branch | Exec | Source |
|---|---|---|---|
| 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 | #undef _GNU_SOURCE | ||
| 20 | #define _XOPEN_SOURCE 600 /* XSI-compliant version of strerror_r */ | ||
| 21 | #include <stdio.h> | ||
| 22 | #include <string.h> | ||
| 23 | #include "config.h" | ||
| 24 | #include "avstring.h" | ||
| 25 | #include "error.h" | ||
| 26 | #include "macros.h" | ||
| 27 | |||
| 28 | #define AVERROR_INPUT_AND_OUTPUT_CHANGED (AVERROR_INPUT_CHANGED | AVERROR_OUTPUT_CHANGED) | ||
| 29 | |||
| 30 | #define AVERROR_LIST(E, E2) \ | ||
| 31 | E(BSF_NOT_FOUND, "Bitstream filter not found") \ | ||
| 32 | E(BUG, "Internal bug, should not have happened") \ | ||
| 33 | E2(BUG2, BUG, "Internal bug, should not have happened") \ | ||
| 34 | E(BUFFER_TOO_SMALL, "Buffer too small") \ | ||
| 35 | E(DECODER_NOT_FOUND, "Decoder not found") \ | ||
| 36 | E(DEMUXER_NOT_FOUND, "Demuxer not found") \ | ||
| 37 | E(ENCODER_NOT_FOUND, "Encoder not found") \ | ||
| 38 | E(EOF, "End of file") \ | ||
| 39 | E(EXIT, "Immediate exit requested") \ | ||
| 40 | E(EXTERNAL, "Generic error in an external library") \ | ||
| 41 | E(FILTER_NOT_FOUND, "Filter not found") \ | ||
| 42 | E(INPUT_CHANGED, "Input changed") \ | ||
| 43 | E(INVALIDDATA, "Invalid data found when processing input") \ | ||
| 44 | E(MUXER_NOT_FOUND, "Muxer not found") \ | ||
| 45 | E(OPTION_NOT_FOUND, "Option not found") \ | ||
| 46 | E(OUTPUT_CHANGED, "Output changed") \ | ||
| 47 | E(PATCHWELCOME, "Not yet implemented in FFmpeg, patches welcome") \ | ||
| 48 | E(PROTOCOL_NOT_FOUND, "Protocol not found") \ | ||
| 49 | E(STREAM_NOT_FOUND, "Stream not found") \ | ||
| 50 | E(UNKNOWN, "Unknown error occurred") \ | ||
| 51 | E(EXPERIMENTAL, "Experimental feature") \ | ||
| 52 | E(INPUT_AND_OUTPUT_CHANGED, "Input and output changed") \ | ||
| 53 | E(HTTP_BAD_REQUEST, "Server returned 400 Bad Request") \ | ||
| 54 | E(HTTP_UNAUTHORIZED, "Server returned 401 Unauthorized (authorization failed)") \ | ||
| 55 | E(HTTP_FORBIDDEN, "Server returned 403 Forbidden (access denied)") \ | ||
| 56 | E(HTTP_NOT_FOUND, "Server returned 404 Not Found") \ | ||
| 57 | E(HTTP_TOO_MANY_REQUESTS, "Server returned 429 Too Many Requests") \ | ||
| 58 | E(HTTP_OTHER_4XX, "Server returned 4XX Client Error, but not one of 40{0,1,3,4}") \ | ||
| 59 | E(HTTP_SERVER_ERROR, "Server returned 5XX Server Error reply") \ | ||
| 60 | |||
| 61 | #define STRERROR_LIST(E) \ | ||
| 62 | E(E2BIG, "Argument list too long") \ | ||
| 63 | E(EACCES, "Permission denied") \ | ||
| 64 | E(EAGAIN, "Resource temporarily unavailable") \ | ||
| 65 | E(EBADF, "Bad file descriptor") \ | ||
| 66 | E(EBUSY, "Device or resource busy") \ | ||
| 67 | E(ECHILD, "No child processes") \ | ||
| 68 | E(EDEADLK, "Resource deadlock avoided") \ | ||
| 69 | E(EDOM, "Numerical argument out of domain") \ | ||
| 70 | E(EEXIST, "File exists") \ | ||
| 71 | E(EFAULT, "Bad address") \ | ||
| 72 | E(EFBIG, "File too large") \ | ||
| 73 | E(EILSEQ, "Illegal byte sequence") \ | ||
| 74 | E(EINTR, "Interrupted system call") \ | ||
| 75 | E(EINVAL, "Invalid argument") \ | ||
| 76 | E(EIO, "I/O error") \ | ||
| 77 | E(EISDIR, "Is a directory") \ | ||
| 78 | E(EMFILE, "Too many open files") \ | ||
| 79 | E(EMLINK, "Too many links") \ | ||
| 80 | E(ENAMETOOLONG, "File name too long") \ | ||
| 81 | E(ENFILE, "Too many open files in system") \ | ||
| 82 | E(ENODEV, "No such device") \ | ||
| 83 | E(ENOENT, "No such file or directory") \ | ||
| 84 | E(ENOEXEC, "Exec format error") \ | ||
| 85 | E(ENOLCK, "No locks available") \ | ||
| 86 | E(ENOMEM, "Cannot allocate memory") \ | ||
| 87 | E(ENOSPC, "No space left on device") \ | ||
| 88 | E(ENOSYS, "Function not implemented") \ | ||
| 89 | E(ENOTDIR, "Not a directory") \ | ||
| 90 | E(ENOTEMPTY, "Directory not empty") \ | ||
| 91 | E(ENOTTY, "Inappropriate I/O control operation") \ | ||
| 92 | E(ENXIO, "No such device or address") \ | ||
| 93 | E(EPERM, "Operation not permitted") \ | ||
| 94 | E(EPIPE, "Broken pipe") \ | ||
| 95 | E(ERANGE, "Result too large") \ | ||
| 96 | E(EROFS, "Read-only file system") \ | ||
| 97 | E(ESPIPE, "Illegal seek") \ | ||
| 98 | E(ESRCH, "No such process") \ | ||
| 99 | E(EXDEV, "Cross-device link") \ | ||
| 100 | |||
| 101 | enum { | ||
| 102 | #define OFFSET(CODE, DESC) \ | ||
| 103 | ERROR_ ## CODE ## _OFFSET, \ | ||
| 104 | ERROR_ ## CODE ## _END_OFFSET = ERROR_ ## CODE ## _OFFSET + sizeof(DESC) - 1, | ||
| 105 | #define NOTHING(CODE, CODE2, DESC) | ||
| 106 | AVERROR_LIST(OFFSET, NOTHING) | ||
| 107 | #if !HAVE_STRERROR_R | ||
| 108 | STRERROR_LIST(OFFSET) | ||
| 109 | #endif | ||
| 110 | }; | ||
| 111 | |||
| 112 | #define STRING(CODE, DESC) DESC "\0" | ||
| 113 | static const char error_stringtable[] = | ||
| 114 | AVERROR_LIST(STRING, NOTHING) | ||
| 115 | #if !HAVE_STRERROR_R | ||
| 116 | STRERROR_LIST(STRING) | ||
| 117 | #endif | ||
| 118 | ; | ||
| 119 | |||
| 120 | static const struct ErrorEntry { | ||
| 121 | int num; | ||
| 122 | unsigned offset; | ||
| 123 | } error_entries[] = { | ||
| 124 | #define ENTRY(CODE, DESC) { .num = AVERROR_ ## CODE, .offset = ERROR_ ## CODE ## _OFFSET }, | ||
| 125 | #define ENTRY2(CODE, CODE2, DESC) { .num = AVERROR_ ## CODE, .offset = ERROR_ ## CODE2 ## _OFFSET }, | ||
| 126 | AVERROR_LIST(ENTRY, ENTRY2) | ||
| 127 | #if !HAVE_STRERROR_R | ||
| 128 | #undef ENTRY | ||
| 129 | #define ENTRY(CODE, DESC) { .num = AVERROR(CODE), .offset = ERROR_ ## CODE ## _OFFSET }, | ||
| 130 | STRERROR_LIST(ENTRY) | ||
| 131 | #endif | ||
| 132 | }; | ||
| 133 | |||
| 134 | 37093 | int av_strerror(int errnum, char *errbuf, size_t errbuf_size) | |
| 135 | { | ||
| 136 |
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1104671 | for (size_t i = 0; i < FF_ARRAY_ELEMS(error_entries); ++i) { |
| 137 |
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1068055 | if (errnum == error_entries[i].num) { |
| 138 | 477 | av_strlcpy(errbuf, error_stringtable + error_entries[i].offset, errbuf_size); | |
| 139 | 477 | return 0; | |
| 140 | } | ||
| 141 | } | ||
| 142 | #if HAVE_STRERROR_R | ||
| 143 | 36616 | int ret = AVERROR(strerror_r(AVUNERROR((unsigned)errnum), errbuf, errbuf_size)); | |
| 144 | #else | ||
| 145 | int ret = -1; | ||
| 146 | #endif | ||
| 147 |
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36616 | if (ret < 0) |
| 148 | 2 | snprintf(errbuf, errbuf_size, "Error number %d occurred", errnum); | |
| 149 | |||
| 150 | 36616 | return ret; | |
| 151 | } | ||
| 152 |