-const char encode_rcs[] = "$Id: encode.c,v 1.12 2007/08/04 10:15:51 fabiankeil Exp $";
+const char encode_rcs[] = "$Id: encode.c,v 1.21 2011/11/06 11:42:14 fabiankeil Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/encode.c,v $
* Purpose : Functions to encode and decode URLs, and also to
* encode cookies and HTML text.
*
- * Copyright : Written by and Copyright (C) 2001 the SourceForge
+ * Copyright : Written by and Copyright (C) 2001 the
* Privoxy team. http://www.privoxy.org/
*
* Based on the Internet Junkbuster originally written
- * by and Copyright (C) 1997 Anonymous Coders and
+ * by and Copyright (C) 1997 Anonymous Coders and
* Junkbusters Corporation. http://www.junkbusters.com
*
- * This program is free software; you can redistribute it
+ * This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at
* or write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
- * Revisions :
- * $Log: encode.c,v $
- * Revision 1.12 2007/08/04 10:15:51 fabiankeil
- * Use strlcpy() instead of strcpy().
- *
- * Revision 1.11 2006/12/28 18:25:53 fabiankeil
- * Fixed gcc43 compiler warning.
- *
- * Revision 1.10 2006/07/18 14:48:45 david__schmidt
- * Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
- * with what was really the latest development (the v_3_0_branch branch)
- *
- * Revision 1.8 2002/03/26 22:29:54 swa
- * we have a new homepage!
- *
- * Revision 1.7 2002/03/24 13:25:43 swa
- * name change related issues
- *
- * Revision 1.6 2002/03/13 00:27:04 jongfoster
- * Killing warnings
- *
- * Revision 1.5 2002/03/07 03:46:53 oes
- * Fixed compiler warnings etc
- *
- * Revision 1.4 2002/01/22 23:28:07 jongfoster
- * Adding convenience function html_encode_and_free_original()
- * Making all functions accept NULL paramaters - in this case, they
- * simply return NULL. This allows error-checking to be deferred.
- *
- * Revision 1.3 2001/11/13 00:16:40 jongfoster
- * Replacing references to malloc.h with the standard stdlib.h
- * (See ANSI or K&R 2nd Ed)
- *
- * Revision 1.2 2001/05/17 22:52:35 oes
- * - Cleaned CRLF's from the sources and related files
- *
- * Revision 1.1.1.1 2001/05/15 13:58:51 oes
- * Initial import of version 2.9.3 source tree
- *
- *
*********************************************************************/
-\f
+
#include "config.h"
NULL, "%01", "%02", "%03", "%04", "%05", "%06", "%07", "%08", "%09",
"%0A", "%0B", "%0C", "%0D", "%0E", "%0F", "%10", "%11", "%12", "%13",
"%14", "%15", "%16", "%17", "%18", "%19", "%1A", "%1B", "%1C", "%1D",
- "%1E", "%1F", "+", "%21", "%22", "%23", "%24", "%25", "%26", "%27",
+ "%1E", "%1F", "%20", "%21", "%22", "%23", "%24", "%25", "%26", "%27",
"%28", "%29", NULL, "%2B", "%2C", NULL, NULL, "%2F", NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "%3A", "%3B",
"%3C", "%3D", "%3E", "%3F", NULL, NULL, NULL, NULL, NULL, NULL,
"%FA", "%FB", "%FC", "%FD", "%FE", "%FF"
};
-/* Maps special characters in HTML to their equivalent entites. */
+/* Maps special characters in HTML to their equivalent entities. */
static const char * const html_code_map[256] = {
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL,""",NULL,NULL,NULL,"&",NULL,
+ NULL, NULL, NULL, NULL,""",NULL,NULL,NULL,"&","'",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"<",NULL,">",NULL,NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL
};
-/* Maps special characters in a cookie to their equivalent % codes. */
-static const char * const cookie_code_map[256] = {
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, "+", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, "%2C",NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "%3B",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL
-};
-
/*********************************************************************
*
* Parameters :
* 1 : s = String to encode. Null-terminated.
*
- * Returns : Encoded string, newly allocated on the heap.
+ * Returns : Encoded string, newly allocated on the heap.
* Caller is responsible for freeing it with free().
* If s is NULL, or on out-of memory, returns NULL.
*
{
char * buf;
size_t buf_size;
-
+
if (s == NULL)
{
return NULL;
* Parameters :
* 1 : s = String to encode. Null-terminated.
*
- * Returns : Encoded string, newly allocated on the heap.
+ * Returns : Encoded string, newly allocated on the heap.
* Caller is responsible for freeing it with free().
* If s is NULL, or on out-of memory, returns NULL.
*
char * html_encode_and_free_original(char *s)
{
char * result;
-
+
if (s == NULL)
{
return NULL;
}
-/*********************************************************************
- *
- * Function : cookie_encode
- *
- * Description : Encodes a string so it can be used in a cookie.
- * Replaces " ", ",", and ";" with the appropriate
- * codes.
- *
- * Parameters :
- * 1 : s = String to encode. Null-terminated.
- *
- * Returns : Encoded string, newly allocated on the heap.
- * Caller is responsible for freeing it with free().
- * If s is NULL, or on out-of memory, returns NULL.
- *
- *********************************************************************/
-char * cookie_encode(const char *s)
-{
- char * buf;
- size_t buf_size;
-
- if (s == NULL)
- {
- return NULL;
- }
-
- /* each input char can expand to at most 3 chars */
- buf_size = (strlen(s) * 3) + 1;
- buf = (char *) malloc(buf_size);
-
- if (buf)
- {
- char c;
- char * p = buf;
- while ( (c = *s++) != '\0')
- {
- const char * replace_with = cookie_code_map[(unsigned char) c];
- if (replace_with != NULL)
- {
- const size_t bytes_written = (size_t)(p - buf);
- assert(bytes_written < buf_size);
- p += strlcpy(p, replace_with, buf_size - bytes_written);
- }
- else
- {
- *p++ = c;
- }
- }
-
- *p = '\0';
- }
-
- assert(strlen(buf) < buf_size);
- return(buf);
-}
-
/*********************************************************************
*
* Function : url_encode
* query string. Replaces special characters with
* the appropriate %xx codes.
*
+ * XXX: url_query_encode() would be a more fitting
+ * name.
+ *
* Parameters :
* 1 : s = String to encode. Null-terminated.
*
- * Returns : Encoded string, newly allocated on the heap.
+ * Returns : Encoded string, newly allocated on the heap.
* Caller is responsible for freeing it with free().
* If s is NULL, or on out-of memory, returns NULL.
*
{
return(d - '0');
}
- else if ((d >= 'a') && (d <= 'f'))
+ else if ((d >= 'a') && (d <= 'f'))
{
return(d - 'a' + 10);
}
*********************************************************************/
int xtoi(const char *s)
{
- int d1, d2;
+ int d1;
d1 = xdtoi(*s);
if(d1 >= 0)
{
- d2 = xdtoi(*(s+1));
+ int d2 = xdtoi(*(s+1));
if(d2 >= 0)
{
return (d1 << 4) + d2;
* Parameters :
* 1 : s = String to decode. Null-terminated.
*
- * Returns : Decoded string, newly allocated on the heap.
+ * Returns : Decoded string, newly allocated on the heap.
* Caller is responsible for freeing it with free().
*
*********************************************************************/