Commit a9b81bfd authored by Michael Niedermayer's avatar Michael Niedermayer

avutil/avstring: add a "ALL" entry and the possibility to negate matches to av_match_name()

This will extend the whitelist features to allow blacklisting individual protocols and to
explicitly force everything to be enabled.
Reviewed-by: 's avatarStefano Sabatini <stefasab@gmail.com>
Signed-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
parent d18df8be
......@@ -326,13 +326,18 @@ int av_match_name(const char *name, const char *names)
return 0;
namelen = strlen(name);
while ((p = strchr(names, ','))) {
while (*names) {
int negate = '-' == *names;
p = strchr(names, ',');
if (!p)
p = names + strlen(names);
names += negate;
len = FFMAX(p - names, namelen);
if (!av_strncasecmp(name, names, len))
return 1;
names = p + 1;
if (!av_strncasecmp(name, names, len) || !strncmp("ALL", names, FFMAX(3, p - names)))
return !negate;
names = p + (*p == ',');
}
return !av_strcasecmp(name, names);
return 0;
}
int av_utf8_decode(int32_t *codep, const uint8_t **bufp, const uint8_t *buf_end,
......
......@@ -284,6 +284,11 @@ const char *av_dirname(char *path);
/**
* Match instances of a name in a comma-separated list of names.
* List entries are checked from the start to the end of the names list,
* the first match ends further processing. If an entry prefixed with '-'
* matches, then 0 is returned. The "ALL" list entry is considered to
* match all names.
*
* @param name Name to look for.
* @param names List of names.
* @return 1 on match, 0 otherwise.
......
......@@ -65,7 +65,7 @@
#define LIBAVUTIL_VERSION_MAJOR 55
#define LIBAVUTIL_VERSION_MINOR 17
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_MICRO 101
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \
......
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