diff options
Diffstat (limited to 'lib/curl_escape.c')
-rw-r--r-- | lib/curl_escape.c | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/lib/curl_escape.c b/lib/curl_escape.c deleted file mode 100644 index c0ed571bd..000000000 --- a/lib/curl_escape.c +++ /dev/null @@ -1,233 +0,0 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms - * are also available at http://curl.haxx.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -/* Escape and unescape URL encoding in strings. The functions return a new - * allocated string or NULL if an error occurred. */ - -#include "curl_setup.h" - -#include <curl/curl.h> - -#include "curl_memory.h" -#include "curl_urldata.h" -#include "curl_warnless.h" -#include "curl_non_ascii.h" -#include "curl_escape.h" - -#define _MPRINTF_REPLACE /* use our functions only */ -#include <curl/mprintf.h> - -/* The last #include file should be: */ -#include "curl_memdebug.h" - -/* Portable character check (remember EBCDIC). Do not use isalnum() because - its behavior is altered by the current locale. - See http://tools.ietf.org/html/rfc3986#section-2.3 -*/ -static bool Curl_isunreserved(unsigned char in) -{ - switch (in) { - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - case 'a': case 'b': case 'c': case 'd': case 'e': - case 'f': case 'g': case 'h': case 'i': case 'j': - case 'k': case 'l': case 'm': case 'n': case 'o': - case 'p': case 'q': case 'r': case 's': case 't': - case 'u': case 'v': case 'w': case 'x': case 'y': case 'z': - case 'A': case 'B': case 'C': case 'D': case 'E': - case 'F': case 'G': case 'H': case 'I': case 'J': - case 'K': case 'L': case 'M': case 'N': case 'O': - case 'P': case 'Q': case 'R': case 'S': case 'T': - case 'U': case 'V': case 'W': case 'X': case 'Y': case 'Z': - case '-': case '.': case '_': case '~': - return TRUE; - default: - break; - } - return FALSE; -} - -/* for ABI-compatibility with previous versions */ -char *curl_escape(const char *string, int inlength) -{ - return curl_easy_escape(NULL, string, inlength); -} - -/* for ABI-compatibility with previous versions */ -char *curl_unescape(const char *string, int length) -{ - return curl_easy_unescape(NULL, string, length, NULL); -} - -char *curl_easy_escape(CURL *handle, const char *string, int inlength) -{ - size_t alloc = (inlength?(size_t)inlength:strlen(string))+1; - char *ns; - char *testing_ptr = NULL; - unsigned char in; /* we need to treat the characters unsigned */ - size_t newlen = alloc; - size_t strindex=0; - size_t length; - CURLcode res; - - ns = malloc(alloc); - if(!ns) - return NULL; - - length = alloc-1; - while(length--) { - in = *string; - - if(Curl_isunreserved(in)) - /* just copy this */ - ns[strindex++]=in; - else { - /* encode it */ - newlen += 2; /* the size grows with two, since this'll become a %XX */ - if(newlen > alloc) { - alloc *= 2; - testing_ptr = realloc(ns, alloc); - if(!testing_ptr) { - free( ns ); - return NULL; - } - else { - ns = testing_ptr; - } - } - - res = Curl_convert_to_network(handle, &in, 1); - if(res) { - /* Curl_convert_to_network calls failf if unsuccessful */ - free(ns); - return NULL; - } - - snprintf(&ns[strindex], 4, "%%%02X", in); - - strindex+=3; - } - string++; - } - ns[strindex]=0; /* terminate it */ - return ns; -} - -/* - * Curl_urldecode() URL decodes the given string. - * - * Optionally detects control characters (byte codes lower than 32) in the - * data and rejects such data. - * - * Returns a pointer to a malloced string in *ostring with length given in - * *olen. If length == 0, the length is assumed to be strlen(string). - * - */ -CURLcode Curl_urldecode(struct SessionHandle *data, - const char *string, size_t length, - char **ostring, size_t *olen, - bool reject_ctrl) -{ - size_t alloc = (length?length:strlen(string))+1; - char *ns = malloc(alloc); - unsigned char in; - size_t strindex=0; - unsigned long hex; - CURLcode res; - - if(!ns) - return CURLE_OUT_OF_MEMORY; - - while(--alloc > 0) { - in = *string; - if(('%' == in) && ISXDIGIT(string[1]) && ISXDIGIT(string[2])) { - /* this is two hexadecimal digits following a '%' */ - char hexstr[3]; - char *ptr; - hexstr[0] = string[1]; - hexstr[1] = string[2]; - hexstr[2] = 0; - - hex = strtoul(hexstr, &ptr, 16); - - in = curlx_ultouc(hex); /* this long is never bigger than 255 anyway */ - - res = Curl_convert_from_network(data, &in, 1); - if(res) { - /* Curl_convert_from_network calls failf if unsuccessful */ - free(ns); - return res; - } - - string+=2; - alloc-=2; - } - if(reject_ctrl && (in < 0x20)) { - free(ns); - return CURLE_URL_MALFORMAT; - } - - ns[strindex++] = in; - string++; - } - ns[strindex]=0; /* terminate it */ - - if(olen) - /* store output size */ - *olen = strindex; - - if(ostring) - /* store output string */ - *ostring = ns; - - return CURLE_OK; -} - -/* - * Unescapes the given URL escaped string of given length. Returns a - * pointer to a malloced string with length given in *olen. - * If length == 0, the length is assumed to be strlen(string). - * If olen == NULL, no output length is stored. - */ -char *curl_easy_unescape(CURL *handle, const char *string, int length, - int *olen) -{ - char *str = NULL; - size_t inputlen = length; - size_t outputlen; - CURLcode res = Curl_urldecode(handle, string, inputlen, &str, &outputlen, - FALSE); - if(res) - return NULL; - if(olen) - *olen = curlx_uztosi(outputlen); - return str; -} - -/* For operating systems/environments that use different malloc/free - systems for the app and for this library, we provide a free that uses - the library's memory system */ -void curl_free(void *p) -{ - if(p) - free(p); -} |