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refactor url_split(), preparing for IPv6 support

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patch by: Ronald S. Bultje rsbultje a gmail d com
thread: "[PATCH] url_split() ipv6 support" at 09/23/07 18:43

Originally committed as revision 10605 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ronald S. Bultje 2007-09-27 19:18:07 +00:00 committed by Andreas Öman
parent 9c5755ee73
commit 7e1e297ee3
1 changed files with 39 additions and 58 deletions
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97
libavformat/utils.c
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@ -2878,68 +2878,49 @@ void url_split(char *proto, int proto_size,
char *path, int path_size,
const char *url)
{
const char *p;
char *q;
int port;
const char *p, *ls, *at, *col;
port = -1;
if (port_ptr) *port_ptr = -1;
if (proto_size > 0) proto[0] = 0;
if (authorization_size > 0) authorization[0] = 0;
if (hostname_size > 0) hostname[0] = 0;
if (path_size > 0) path[0] = 0;
p = url;
q = proto;
while (*p != ':' && *p != '\0') {
if ((q - proto) < proto_size - 1)
*q++ = *p;
p++;
}
if (proto_size > 0)
*q = '\0';
if (authorization_size > 0)
authorization[0] = '\0';
if (*p == '\0') {
if (proto_size > 0)
proto[0] = '\0';
if (hostname_size > 0)
hostname[0] = '\0';
p = url;
/* parse protocol */
if ((p = strchr(url, ':'))) {
av_strlcpy(proto, url, FFMIN(proto_size, p + 1 - url));
p++; /* skip ':' */
if (*p == '/') p++;
if (*p == '/') p++;
} else {
char *at,*slash; // PETR: position of '@' character and '/' character
p++;
if (*p == '/')
p++;
if (*p == '/')
p++;
at = strchr(p,'@'); // PETR: get the position of '@'
slash = strchr(p,'/'); // PETR: get position of '/' - end of hostname
if (at && slash && at > slash) at = NULL; // PETR: not interested in '@' behind '/'
q = at ? authorization : hostname; // PETR: if '@' exists starting with auth.
while ((at || *p != ':') && *p != '/' && *p != '?' && *p != '\0') { // PETR:
if (*p == '@') { // PETR: passed '@'
if (authorization_size > 0)
*q = '\0';
q = hostname;
at = NULL;
} else if (!at) { // PETR: hostname
if ((q - hostname) < hostname_size - 1)
*q++ = *p;
} else {
if ((q - authorization) < authorization_size - 1)
*q++ = *p;
}
p++;
}
if (hostname_size > 0)
*q = '\0';
if (*p == ':') {
p++;
port = strtoul(p, (char **)&p, 10);
}
/* no protocol means plain filename */
av_strlcpy(path, url, path_size);
return;
}
/* separate path from hostname */
if ((ls = strchr(p, '/')))
av_strlcpy(path, ls, path_size);
else
ls = &p[strlen(p)]; // XXX
/* the rest is hostname, use that to parse auth/port */
if (ls != p) {
/* authorization (user[:pass]@hostname) */
if ((at = strchr(p, '@')) && at < ls) {
av_strlcpy(authorization, p,
FFMIN(authorization_size, at + 1 - p));
p = at + 1; /* skip '@' */
}
/* port */
if ((col = strchr(p, ':')) && col < ls) {
ls = col;
if (port_ptr) *port_ptr = atoi(col + 1); /* skip ':' */
}
av_strlcpy(hostname, p, FFMIN(1 + ls - p, hostname_size));
}
if (port_ptr)
*port_ptr = port;
av_strlcpy(path, p, path_size);
}
void av_set_pts_info(AVStream *s, int pts_wrap_bits,