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author | Michael Niedermayer <michaelni@gmx.at> | 2013-06-17 02:05:02 +0400 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2013-06-17 02:09:31 +0400 |
commit | 1f87cbe8349d8662c0d6ead40cc39620b01ae0da (patch) | |
tree | b986665a569a53b76cbc86263d1ba1a4645c8d01 /libavformat/url.c | |
parent | 8097307bfb6a90d18d35a870ff61016111820ab7 (diff) | |
parent | df9f22d42b0905385629a9d368bb5a1eef2b45ef (diff) |
Merge commit 'df9f22d42b0905385629a9d368bb5a1eef2b45ef'
* commit 'df9f22d42b0905385629a9d368bb5a1eef2b45ef':
avf: move url utility functions in a separate file
Conflicts:
libavformat/internal.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/url.c')
-rw-r--r-- | libavformat/url.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/libavformat/url.c b/libavformat/url.c new file mode 100644 index 0000000000..47e15843cf --- /dev/null +++ b/libavformat/url.c @@ -0,0 +1,147 @@ +/* + * URL utility functions + * Copyright (c) 2000, 2001, 2002 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + + +#include "avformat.h" +#include "config.h" +#include "url.h" +#if CONFIG_NETWORK +#include "network.h" +#endif +#include "libavutil/avstring.h" + +/** + * @file + * URL utility functions. + */ + +int ff_url_join(char *str, int size, const char *proto, + const char *authorization, const char *hostname, + int port, const char *fmt, ...) +{ +#if CONFIG_NETWORK + struct addrinfo hints = { 0 }, *ai; +#endif + + str[0] = '\0'; + if (proto) + av_strlcatf(str, size, "%s://", proto); + if (authorization && authorization[0]) + av_strlcatf(str, size, "%s@", authorization); +#if CONFIG_NETWORK && defined(AF_INET6) + /* Determine if hostname is a numerical IPv6 address, + * properly escape it within [] in that case. */ + hints.ai_flags = AI_NUMERICHOST; + if (!getaddrinfo(hostname, NULL, &hints, &ai)) { + if (ai->ai_family == AF_INET6) { + av_strlcat(str, "[", size); + av_strlcat(str, hostname, size); + av_strlcat(str, "]", size); + } else { + av_strlcat(str, hostname, size); + } + freeaddrinfo(ai); + } else +#endif + /* Not an IPv6 address, just output the plain string. */ + av_strlcat(str, hostname, size); + + if (port >= 0) + av_strlcatf(str, size, ":%d", port); + if (fmt) { + va_list vl; + int len = strlen(str); + + va_start(vl, fmt); + vsnprintf(str + len, size > len ? size - len : 0, fmt, vl); + va_end(vl); + } + return strlen(str); +} + +void ff_make_absolute_url(char *buf, int size, const char *base, + const char *rel) +{ + char *sep, *path_query; + /* Absolute path, relative to the current server */ + if (base && strstr(base, "://") && rel[0] == '/') { + if (base != buf) + av_strlcpy(buf, base, size); + sep = strstr(buf, "://"); + if (sep) { + /* Take scheme from base url */ + if (rel[1] == '/') { + sep[1] = '\0'; + } else { + /* Take scheme and host from base url */ + sep += 3; + sep = strchr(sep, '/'); + if (sep) + *sep = '\0'; + } + } + av_strlcat(buf, rel, size); + return; + } + /* If rel actually is an absolute url, just copy it */ + if (!base || strstr(rel, "://") || rel[0] == '/') { + av_strlcpy(buf, rel, size); + return; + } + if (base != buf) + av_strlcpy(buf, base, size); + + /* Strip off any query string from base */ + path_query = strchr(buf, '?'); + if (path_query != NULL) + *path_query = '\0'; + + /* Is relative path just a new query part? */ + if (rel[0] == '?') { + av_strlcat(buf, rel, size); + return; + } + + /* Remove the file name from the base url */ + sep = strrchr(buf, '/'); + if (sep) + sep[1] = '\0'; + else + buf[0] = '\0'; + while (av_strstart(rel, "../", NULL) && sep) { + /* Remove the path delimiter at the end */ + sep[0] = '\0'; + sep = strrchr(buf, '/'); + /* If the next directory name to pop off is "..", break here */ + if (!strcmp(sep ? &sep[1] : buf, "..")) { + /* Readd the slash we just removed */ + av_strlcat(buf, "/", size); + break; + } + /* Cut off the directory name */ + if (sep) + sep[1] = '\0'; + else + buf[0] = '\0'; + rel += 3; + } + av_strlcat(buf, rel, size); +} |