| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2010 Mans Rullgard | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include <stdio.h> | ||
| 22 | #include "libavutil/avstring.h" | ||
| 23 | #include "libavutil/md5.h" | ||
| 24 | #include "libavutil/mem.h" | ||
| 25 | #include "libavutil/error.h" | ||
| 26 | #include "avio.h" | ||
| 27 | #include "internal.h" | ||
| 28 | #include "url.h" | ||
| 29 | |||
| 30 | struct MD5Context { | ||
| 31 | struct AVMD5 *md5; | ||
| 32 | }; | ||
| 33 | |||
| 34 | 2683 | static int md5_open(URLContext *h, const char *filename, int flags) | |
| 35 | { | ||
| 36 | 2683 | struct MD5Context *c = h->priv_data; | |
| 37 | |||
| 38 |
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2683 | if (!(flags & AVIO_FLAG_WRITE)) |
| 39 | ✗ | return AVERROR(EINVAL); | |
| 40 | |||
| 41 | 2683 | c->md5 = av_md5_alloc(); | |
| 42 |
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2683 | if (!c->md5) |
| 43 | ✗ | return AVERROR(ENOMEM); | |
| 44 | 2683 | av_md5_init(c->md5); | |
| 45 | |||
| 46 | 2683 | return 0; | |
| 47 | } | ||
| 48 | |||
| 49 | 100323 | static int md5_write(URLContext *h, const unsigned char *buf, int size) | |
| 50 | { | ||
| 51 | 100323 | struct MD5Context *c = h->priv_data; | |
| 52 | 100323 | av_md5_update(c->md5, buf, size); | |
| 53 | 100323 | return size; | |
| 54 | } | ||
| 55 | |||
| 56 | 2683 | static int md5_close(URLContext *h) | |
| 57 | { | ||
| 58 | 2683 | struct MD5Context *c = h->priv_data; | |
| 59 | 2683 | const char *filename = h->filename; | |
| 60 | uint8_t md5[16], buf[2 * sizeof(md5) + 1]; | ||
| 61 | URLContext *out; | ||
| 62 | 2683 | int err = 0; | |
| 63 | |||
| 64 | 2683 | av_md5_final(c->md5, md5); | |
| 65 | 2683 | ff_data_to_hex(buf, md5, sizeof(md5), 1); | |
| 66 | 2683 | buf[2 * sizeof(md5)] = '\n'; | |
| 67 | |||
| 68 | 2683 | av_strstart(filename, "md5:", &filename); | |
| 69 | |||
| 70 |
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2683 | if (*filename) { |
| 71 | 384 | err = ffurl_open_whitelist(&out, filename, AVIO_FLAG_WRITE, | |
| 72 | 384 | &h->interrupt_callback, NULL, | |
| 73 | h->protocol_whitelist, h->protocol_blacklist, h); | ||
| 74 |
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384 | if (err) |
| 75 | ✗ | return err; | |
| 76 | 384 | err = ffurl_write(out, buf, sizeof(buf)); | |
| 77 | 384 | ffurl_close(out); | |
| 78 | } else { | ||
| 79 |
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2299 | if (fwrite(buf, 1, sizeof(buf), stdout) < sizeof(buf)) |
| 80 | ✗ | err = AVERROR(errno); | |
| 81 | } | ||
| 82 | |||
| 83 | 2683 | av_freep(&c->md5); | |
| 84 | |||
| 85 | 2683 | return err; | |
| 86 | } | ||
| 87 | |||
| 88 | |||
| 89 | const URLProtocol ff_md5_protocol = { | ||
| 90 | .name = "md5", | ||
| 91 | .url_open = md5_open, | ||
| 92 | .url_write = md5_write, | ||
| 93 | .url_close = md5_close, | ||
| 94 | .priv_data_size = sizeof(struct MD5Context), | ||
| 95 | }; | ||
| 96 |