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Added 2 functions to escape/unescape the url as described in the RFC 2396.

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Code borrowed from ASFRecorder.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3497 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
bertrand 2001-12-14 23:48:47 +00:00
parent d6d9a909f0
commit 24c6f11c8b
2 changed files with 64 additions and 1 deletions
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60
libmpdemux/url.c
View File

@ -134,3 +134,63 @@ url_free(URL_t* url) {
if(url->password) free(url->password);
free(url);
}
/* Replace escape sequences in an URL (or a part of an URL) */
/* works like strcpy(), but without return argument */
/* unescape_url_string comes from ASFRecorder */
void
url_unescape_string(char *outbuf, char *inbuf)
{
unsigned char c;
do {
c = *inbuf++;
if (c == '%') {
unsigned char c1 = *inbuf++;
unsigned char c2 = *inbuf++;
if ( ((c1>='0' && c1<='9') || (c1>='A' && c1<='F')) &&
((c2>='0' && c2<='9') || (c2>='A' && c2<='F')) ) {
if (c1>='0' && c1<='9') c1-='0';
else c1-='A';
if (c2>='0' && c2<='9') c2-='0';
else c2-='A';
c = (c1<<4) + c2;
}
}
*outbuf++ = c;
} while (c != '\0');
}
/* Replace specific characters in the URL string by an escape sequence */
/* works like strcpy(), but without return argument */
/* escape_url_string comes from ASFRecorder */
void
url_escape_string(char *outbuf, char *inbuf) {
unsigned char c;
do {
c = *inbuf++;
if( (c >= 'A' && c <= 'Z') ||
(c >= 'a' && c <= 'z') ||
(c >= '0' && c <= '9') ||
(c >= 0x7f) || /* fareast languages(Chinese, Korean, Japanese) */
c=='-' || c=='_' || c=='.' || c=='!' || c=='~' || /* mark characters */
c=='*' || c=='\'' || c=='(' || c==')' || c=='%' || /* do not touch escape character */
c==';' || c=='/' || c=='?' || c==':' || c=='@' || /* reserved characters */
c=='&' || c=='=' || c=='+' || c=='$' || c==',' || /* see RFC 2396 */
c=='\0' ) {
*outbuf++ = c;
} else {
/* all others will be escaped */
unsigned char c1 = ((c & 0xf0) >> 4);
unsigned char c2 = (c & 0x0f);
if (c1 < 10) c1+='0';
else c1+='A';
if (c2 < 10) c2+='0';
else c2+='A';
*outbuf++ = '%';
*outbuf++ = c1;
*outbuf++ = c2;
}
} while (c != '\0');
}

3
libmpdemux/url.h
View File

@ -21,4 +21,7 @@ URL_t* url_new(char* url);
URL_t* url_copy(URL_t* url);
void url_free(URL_t* url);
void url_unescape_string(char *outbuf, char *inbuf);
void url_escape_string(char *outbuf, char *inbuf);
#endif