mirror of
https://github.com/curl/curl.git
synced 2024-12-21 06:50:10 +08:00
5a053ffe80
This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.
Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]
Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]
----------------------------------------
1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
this single inclusion guard is enough to ensure that inclusion of
lib/setup_once.h done from lib/setup.h is only done once.
Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
protect inclusion of setup_once.h even after commit ec691ca3, this
was to avoid a circular header inclusion triggered when building a
c-ares enabled version with c-ares sources available which also has
a setup_once.h header. Commit ec691ca3 exposes the real nature of
__SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
foreign to libcurl belonging to c-ares's setup_once.h
The renaming this commit does, fixes the circular header inclusion,
and as such removes the need and usage of a header inclusion guard
foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.
2 - Due to the circular interdependency of old lib/setup_once.h and the
c-ares setup_once.h header, old file lib/setup_once.h has carried
back from 2006 up to now days an alarming and prominent notice about
the need of keeping libcurl's and c-ares's setup_once.h in sync.
Given that this commit fixes the circular interdependency, the need
and presence of mentioned notice is removed.
All mentioned interdependencies come back from now old days when
the c-ares project lived inside a curl subdirectory. This commit
removes last traces of such fact.
344 lines
9.9 KiB
C
344 lines
9.9 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2012, 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.
|
|
*
|
|
***************************************************************************/
|
|
|
|
#include "curl_setup.h"
|
|
|
|
#ifdef CURL_DOES_CONVERSIONS
|
|
|
|
#include <curl/curl.h>
|
|
|
|
#include "non-ascii.h"
|
|
#include "formdata.h"
|
|
#include "sendf.h"
|
|
#include "urldata.h"
|
|
|
|
#include "curl_memory.h"
|
|
/* The last #include file should be: */
|
|
#include "memdebug.h"
|
|
|
|
#ifdef HAVE_ICONV
|
|
#include <iconv.h>
|
|
/* set default codesets for iconv */
|
|
#ifndef CURL_ICONV_CODESET_OF_NETWORK
|
|
#define CURL_ICONV_CODESET_OF_NETWORK "ISO8859-1"
|
|
#endif
|
|
#ifndef CURL_ICONV_CODESET_FOR_UTF8
|
|
#define CURL_ICONV_CODESET_FOR_UTF8 "UTF-8"
|
|
#endif
|
|
#define ICONV_ERROR (size_t)-1
|
|
#endif /* HAVE_ICONV */
|
|
|
|
/*
|
|
* Curl_convert_clone() returns a malloced copy of the source string (if
|
|
* returning CURLE_OK), with the data converted to network format.
|
|
*/
|
|
CURLcode Curl_convert_clone(struct SessionHandle *data,
|
|
const char *indata,
|
|
size_t insize,
|
|
char **outbuf)
|
|
{
|
|
char *convbuf;
|
|
CURLcode result;
|
|
|
|
convbuf = malloc(insize);
|
|
if(!convbuf)
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
memcpy(convbuf, indata, insize);
|
|
result = Curl_convert_to_network(data, convbuf, insize);
|
|
if(result) {
|
|
free(convbuf);
|
|
return result;
|
|
}
|
|
|
|
*outbuf = convbuf; /* return the converted buffer */
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/*
|
|
* Curl_convert_to_network() is an internal function for performing ASCII
|
|
* conversions on non-ASCII platforms. It convers the buffer _in place_.
|
|
*/
|
|
CURLcode Curl_convert_to_network(struct SessionHandle *data,
|
|
char *buffer, size_t length)
|
|
{
|
|
CURLcode rc;
|
|
|
|
if(data->set.convtonetwork) {
|
|
/* use translation callback */
|
|
rc = data->set.convtonetwork(buffer, length);
|
|
if(rc != CURLE_OK) {
|
|
failf(data,
|
|
"CURLOPT_CONV_TO_NETWORK_FUNCTION callback returned %d: %s",
|
|
(int)rc, curl_easy_strerror(rc));
|
|
}
|
|
return rc;
|
|
}
|
|
else {
|
|
#ifdef HAVE_ICONV
|
|
/* do the translation ourselves */
|
|
char *input_ptr, *output_ptr;
|
|
size_t in_bytes, out_bytes, rc;
|
|
int error;
|
|
|
|
/* open an iconv conversion descriptor if necessary */
|
|
if(data->outbound_cd == (iconv_t)-1) {
|
|
data->outbound_cd = iconv_open(CURL_ICONV_CODESET_OF_NETWORK,
|
|
CURL_ICONV_CODESET_OF_HOST);
|
|
if(data->outbound_cd == (iconv_t)-1) {
|
|
error = ERRNO;
|
|
failf(data,
|
|
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
|
|
CURL_ICONV_CODESET_OF_NETWORK,
|
|
CURL_ICONV_CODESET_OF_HOST,
|
|
error, strerror(error));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
/* call iconv */
|
|
input_ptr = output_ptr = buffer;
|
|
in_bytes = out_bytes = length;
|
|
rc = iconv(data->outbound_cd, (const char**)&input_ptr, &in_bytes,
|
|
&output_ptr, &out_bytes);
|
|
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
|
|
error = ERRNO;
|
|
failf(data,
|
|
"The Curl_convert_to_network iconv call failed with errno %i: %s",
|
|
error, strerror(error));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
#else
|
|
failf(data, "CURLOPT_CONV_TO_NETWORK_FUNCTION callback required");
|
|
return CURLE_CONV_REQD;
|
|
#endif /* HAVE_ICONV */
|
|
}
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/*
|
|
* Curl_convert_from_network() is an internal function for performing ASCII
|
|
* conversions on non-ASCII platforms. It convers the buffer _in place_.
|
|
*/
|
|
CURLcode Curl_convert_from_network(struct SessionHandle *data,
|
|
char *buffer, size_t length)
|
|
{
|
|
CURLcode rc;
|
|
|
|
if(data->set.convfromnetwork) {
|
|
/* use translation callback */
|
|
rc = data->set.convfromnetwork(buffer, length);
|
|
if(rc != CURLE_OK) {
|
|
failf(data,
|
|
"CURLOPT_CONV_FROM_NETWORK_FUNCTION callback returned %d: %s",
|
|
(int)rc, curl_easy_strerror(rc));
|
|
}
|
|
return rc;
|
|
}
|
|
else {
|
|
#ifdef HAVE_ICONV
|
|
/* do the translation ourselves */
|
|
char *input_ptr, *output_ptr;
|
|
size_t in_bytes, out_bytes, rc;
|
|
int error;
|
|
|
|
/* open an iconv conversion descriptor if necessary */
|
|
if(data->inbound_cd == (iconv_t)-1) {
|
|
data->inbound_cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_OF_NETWORK);
|
|
if(data->inbound_cd == (iconv_t)-1) {
|
|
error = ERRNO;
|
|
failf(data,
|
|
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
|
|
CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_OF_NETWORK,
|
|
error, strerror(error));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
/* call iconv */
|
|
input_ptr = output_ptr = buffer;
|
|
in_bytes = out_bytes = length;
|
|
rc = iconv(data->inbound_cd, (const char **)&input_ptr, &in_bytes,
|
|
&output_ptr, &out_bytes);
|
|
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
|
|
error = ERRNO;
|
|
failf(data,
|
|
"Curl_convert_from_network iconv call failed with errno %i: %s",
|
|
error, strerror(error));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
#else
|
|
failf(data, "CURLOPT_CONV_FROM_NETWORK_FUNCTION callback required");
|
|
return CURLE_CONV_REQD;
|
|
#endif /* HAVE_ICONV */
|
|
}
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/*
|
|
* Curl_convert_from_utf8() is an internal function for performing UTF-8
|
|
* conversions on non-ASCII platforms.
|
|
*/
|
|
CURLcode Curl_convert_from_utf8(struct SessionHandle *data,
|
|
char *buffer, size_t length)
|
|
{
|
|
CURLcode rc;
|
|
|
|
if(data->set.convfromutf8) {
|
|
/* use translation callback */
|
|
rc = data->set.convfromutf8(buffer, length);
|
|
if(rc != CURLE_OK) {
|
|
failf(data,
|
|
"CURLOPT_CONV_FROM_UTF8_FUNCTION callback returned %d: %s",
|
|
(int)rc, curl_easy_strerror(rc));
|
|
}
|
|
return rc;
|
|
}
|
|
else {
|
|
#ifdef HAVE_ICONV
|
|
/* do the translation ourselves */
|
|
const char *input_ptr;
|
|
char *output_ptr;
|
|
size_t in_bytes, out_bytes, rc;
|
|
int error;
|
|
|
|
/* open an iconv conversion descriptor if necessary */
|
|
if(data->utf8_cd == (iconv_t)-1) {
|
|
data->utf8_cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_FOR_UTF8);
|
|
if(data->utf8_cd == (iconv_t)-1) {
|
|
error = ERRNO;
|
|
failf(data,
|
|
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
|
|
CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_FOR_UTF8,
|
|
error, strerror(error));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
/* call iconv */
|
|
input_ptr = output_ptr = buffer;
|
|
in_bytes = out_bytes = length;
|
|
rc = iconv(data->utf8_cd, &input_ptr, &in_bytes,
|
|
&output_ptr, &out_bytes);
|
|
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
|
|
error = ERRNO;
|
|
failf(data,
|
|
"The Curl_convert_from_utf8 iconv call failed with errno %i: %s",
|
|
error, strerror(error));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
if(output_ptr < input_ptr) {
|
|
/* null terminate the now shorter output string */
|
|
*output_ptr = 0x00;
|
|
}
|
|
#else
|
|
failf(data, "CURLOPT_CONV_FROM_UTF8_FUNCTION callback required");
|
|
return CURLE_CONV_REQD;
|
|
#endif /* HAVE_ICONV */
|
|
}
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/*
|
|
* Init conversion stuff for a SessionHandle
|
|
*/
|
|
void Curl_convert_init(struct SessionHandle *data)
|
|
{
|
|
#if defined(CURL_DOES_CONVERSIONS) && defined(HAVE_ICONV)
|
|
/* conversion descriptors for iconv calls */
|
|
data->outbound_cd = (iconv_t)-1;
|
|
data->inbound_cd = (iconv_t)-1;
|
|
data->utf8_cd = (iconv_t)-1;
|
|
#else
|
|
(void)data;
|
|
#endif /* CURL_DOES_CONVERSIONS && HAVE_ICONV */
|
|
}
|
|
|
|
/*
|
|
* Setup conversion stuff for a SessionHandle
|
|
*/
|
|
void Curl_convert_setup(struct SessionHandle *data)
|
|
{
|
|
data->inbound_cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_OF_NETWORK);
|
|
data->outbound_cd = iconv_open(CURL_ICONV_CODESET_OF_NETWORK,
|
|
CURL_ICONV_CODESET_OF_HOST);
|
|
data->utf8_cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_FOR_UTF8);
|
|
}
|
|
|
|
/*
|
|
* Close conversion stuff for a SessionHandle
|
|
*/
|
|
|
|
void Curl_convert_close(struct SessionHandle *data)
|
|
{
|
|
#ifdef HAVE_ICONV
|
|
/* close iconv conversion descriptors */
|
|
if(data->inbound_cd != (iconv_t)-1) {
|
|
iconv_close(data->inbound_cd);
|
|
}
|
|
if(data->outbound_cd != (iconv_t)-1) {
|
|
iconv_close(data->outbound_cd);
|
|
}
|
|
if(data->utf8_cd != (iconv_t)-1) {
|
|
iconv_close(data->utf8_cd);
|
|
}
|
|
#else
|
|
(void)data;
|
|
#endif /* HAVE_ICONV */
|
|
}
|
|
|
|
/*
|
|
* Curl_convert_form() is used from http.c, this converts any form items that
|
|
need to be sent in the network encoding. Returns CURLE_OK on success.
|
|
*/
|
|
CURLcode Curl_convert_form(struct SessionHandle *data, struct FormData *form)
|
|
{
|
|
struct FormData *next;
|
|
CURLcode rc;
|
|
|
|
if(!form)
|
|
return CURLE_OK;
|
|
|
|
if(!data)
|
|
return CURLE_BAD_FUNCTION_ARGUMENT;
|
|
|
|
do {
|
|
next=form->next; /* the following form line */
|
|
if(form->type == FORM_DATA) {
|
|
rc = Curl_convert_to_network(data, form->line, form->length);
|
|
/* Curl_convert_to_network calls failf if unsuccessful */
|
|
if(rc != CURLE_OK)
|
|
return rc;
|
|
}
|
|
} while((form = next) != NULL); /* continue */
|
|
return CURLE_OK;
|
|
}
|
|
|
|
#endif /* CURL_DOES_CONVERSIONS */
|