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non-ascii: allow conversion functions to be called with a NULL data handle.

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This commit is contained in:
Patrick Monnerat 2017-09-02 12:45:21 +01:00
parent 3b51fa6285
commit 70231d6a65
1 changed files with 37 additions and 19 deletions
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56
lib/non-ascii.c
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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2017, 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
@ -82,7 +82,7 @@ CURLcode Curl_convert_clone(struct Curl_easy *data,
CURLcode Curl_convert_to_network(struct Curl_easy *data,
char *buffer, size_t length)
{
if(data->set.convtonetwork) {
if(data && data->set.convtonetwork) {
/* use translation callback */
CURLcode result = data->set.convtonetwork(buffer, length);
if(result) {
@ -96,14 +96,18 @@ CURLcode Curl_convert_to_network(struct Curl_easy *data,
else {
#ifdef HAVE_ICONV
/* do the translation ourselves */
iconv_t tmpcd = (iconv_t) -1;
iconv_t *cd = &tmpcd;
char *input_ptr, *output_ptr;
size_t in_bytes, out_bytes, rc;
/* 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) {
if(data)
cd = &data->outbound_cd;
if(*cd == (iconv_t)-1) {
*cd = iconv_open(CURL_ICONV_CODESET_OF_NETWORK,
CURL_ICONV_CODESET_OF_HOST);
if(*cd == (iconv_t)-1) {
failf(data,
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
CURL_ICONV_CODESET_OF_NETWORK,
@ -115,8 +119,10 @@ CURLcode Curl_convert_to_network(struct Curl_easy *data,
/* call iconv */
input_ptr = output_ptr = buffer;
in_bytes = out_bytes = length;
rc = iconv(data->outbound_cd, (const char **)&input_ptr, &in_bytes,
rc = iconv(*cd, (const char **)&input_ptr, &in_bytes,
&output_ptr, &out_bytes);
if(!data)
iconv_close(tmpcd);
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
failf(data,
"The Curl_convert_to_network iconv call failed with errno %i: %s",
@ -139,7 +145,7 @@ CURLcode Curl_convert_to_network(struct Curl_easy *data,
CURLcode Curl_convert_from_network(struct Curl_easy *data,
char *buffer, size_t length)
{
if(data->set.convfromnetwork) {
if(data && data->set.convfromnetwork) {
/* use translation callback */
CURLcode result = data->set.convfromnetwork(buffer, length);
if(result) {
@ -153,14 +159,18 @@ CURLcode Curl_convert_from_network(struct Curl_easy *data,
else {
#ifdef HAVE_ICONV
/* do the translation ourselves */
iconv_t tmpcd = (iconv_t) -1;
iconv_t *cd = &tmpcd;
char *input_ptr, *output_ptr;
size_t in_bytes, out_bytes, rc;
/* 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) {
if(data)
cd = &data->inbound_cd;
if(*cd == (iconv_t)-1) {
*cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
CURL_ICONV_CODESET_OF_NETWORK);
if(*cd == (iconv_t)-1) {
failf(data,
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
CURL_ICONV_CODESET_OF_HOST,
@ -172,8 +182,10 @@ CURLcode Curl_convert_from_network(struct Curl_easy *data,
/* call iconv */
input_ptr = output_ptr = buffer;
in_bytes = out_bytes = length;
rc = iconv(data->inbound_cd, (const char **)&input_ptr, &in_bytes,
rc = iconv(*cd, (const char **)&input_ptr, &in_bytes,
&output_ptr, &out_bytes);
if(!data)
iconv_close(tmpcd);
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
failf(data,
"Curl_convert_from_network iconv call failed with errno %i: %s",
@ -196,7 +208,7 @@ CURLcode Curl_convert_from_network(struct Curl_easy *data,
CURLcode Curl_convert_from_utf8(struct Curl_easy *data,
char *buffer, size_t length)
{
if(data->set.convfromutf8) {
if(data && data->set.convfromutf8) {
/* use translation callback */
CURLcode result = data->set.convfromutf8(buffer, length);
if(result) {
@ -210,15 +222,19 @@ CURLcode Curl_convert_from_utf8(struct Curl_easy *data,
else {
#ifdef HAVE_ICONV
/* do the translation ourselves */
iconv_t tmpcd = (iconv_t) -1;
iconv_t *cd = &tmpcd;
const char *input_ptr;
char *output_ptr;
size_t in_bytes, out_bytes, rc;
/* 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) {
if(data)
cd = &data->utf8_cd;
if(*cd == (iconv_t)-1) {
*cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
CURL_ICONV_CODESET_FOR_UTF8);
if(*cd == (iconv_t)-1) {
failf(data,
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
CURL_ICONV_CODESET_OF_HOST,
@ -230,8 +246,10 @@ CURLcode Curl_convert_from_utf8(struct Curl_easy *data,
/* call iconv */
input_ptr = output_ptr = buffer;
in_bytes = out_bytes = length;
rc = iconv(data->utf8_cd, &input_ptr, &in_bytes,
rc = iconv(*cd, &input_ptr, &in_bytes,
&output_ptr, &out_bytes);
if(!data)
iconv_close(tmpcd);
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
failf(data,
"The Curl_convert_from_utf8 iconv call failed with errno %i: %s",