[352] | 1 | /***************************************************************************
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| 2 | * _ _ ____ _
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| 3 | * Project ___| | | | _ \| |
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| 4 | * / __| | | | |_) | |
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| 5 | * | (__| |_| | _ <| |___
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| 6 | * \___|\___/|_| \_\_____|
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| 7 | *
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| 8 | * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
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| 9 | *
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| 10 | * This software is licensed as described in the file COPYING, which
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| 11 | * you should have received as part of this distribution. The terms
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| 12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 13 | *
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| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 15 | * copies of the Software, and permit persons to whom the Software is
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| 16 | * furnished to do so, under the terms of the COPYING file.
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| 17 | *
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| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 19 | * KIND, either express or implied.
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| 20 | *
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| 21 | ***************************************************************************/
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| 22 | #include "tool_setup.h"
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| 23 |
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| 24 | #ifdef CURL_DOES_CONVERSIONS
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| 25 |
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| 26 | #ifdef HAVE_ICONV
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| 27 | # include <iconv.h>
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| 28 | #endif
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| 29 |
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| 30 | #include "tool_convert.h"
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| 31 |
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| 32 | #include "memdebug.h" /* keep this as LAST include */
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| 33 |
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| 34 | #ifdef HAVE_ICONV
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| 35 |
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| 36 | /* curl tool iconv conversion descriptors */
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| 37 | static iconv_t inbound_cd = (iconv_t)-1;
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| 38 | static iconv_t outbound_cd = (iconv_t)-1;
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| 39 |
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| 40 | /* set default codesets for iconv */
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| 41 | #ifndef CURL_ICONV_CODESET_OF_NETWORK
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| 42 | # define CURL_ICONV_CODESET_OF_NETWORK "ISO8859-1"
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| 43 | #endif
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| 44 |
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| 45 | /*
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| 46 | * convert_to_network() is a curl tool function to convert
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| 47 | * from the host encoding to ASCII on non-ASCII platforms.
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| 48 | */
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| 49 | CURLcode convert_to_network(char *buffer, size_t length)
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| 50 | {
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| 51 | /* translate from the host encoding to the network encoding */
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| 52 | char *input_ptr, *output_ptr;
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| 53 | size_t res, in_bytes, out_bytes;
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| 54 |
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| 55 | /* open an iconv conversion descriptor if necessary */
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| 56 | if(outbound_cd == (iconv_t)-1) {
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| 57 | outbound_cd = iconv_open(CURL_ICONV_CODESET_OF_NETWORK,
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| 58 | CURL_ICONV_CODESET_OF_HOST);
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| 59 | if(outbound_cd == (iconv_t)-1) {
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| 60 | return CURLE_CONV_FAILED;
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| 61 | }
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| 62 | }
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| 63 | /* call iconv */
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| 64 | input_ptr = output_ptr = buffer;
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| 65 | in_bytes = out_bytes = length;
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| 66 | res = iconv(outbound_cd, &input_ptr, &in_bytes,
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| 67 | &output_ptr, &out_bytes);
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| 68 | if((res == (size_t)-1) || (in_bytes != 0)) {
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| 69 | return CURLE_CONV_FAILED;
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| 70 | }
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| 71 |
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| 72 | return CURLE_OK;
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| 73 | }
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| 74 |
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| 75 | /*
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| 76 | * convert_from_network() is a curl tool function
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| 77 | * for performing ASCII conversions on non-ASCII platforms.
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| 78 | */
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| 79 | CURLcode convert_from_network(char *buffer, size_t length)
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| 80 | {
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| 81 | /* translate from the network encoding to the host encoding */
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| 82 | char *input_ptr, *output_ptr;
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| 83 | size_t res, in_bytes, out_bytes;
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| 84 |
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| 85 | /* open an iconv conversion descriptor if necessary */
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| 86 | if(inbound_cd == (iconv_t)-1) {
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| 87 | inbound_cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
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| 88 | CURL_ICONV_CODESET_OF_NETWORK);
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| 89 | if(inbound_cd == (iconv_t)-1) {
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| 90 | return CURLE_CONV_FAILED;
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| 91 | }
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| 92 | }
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| 93 | /* call iconv */
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| 94 | input_ptr = output_ptr = buffer;
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| 95 | in_bytes = out_bytes = length;
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| 96 | res = iconv(inbound_cd, &input_ptr, &in_bytes,
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| 97 | &output_ptr, &out_bytes);
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| 98 | if((res == (size_t)-1) || (in_bytes != 0)) {
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| 99 | return CURLE_CONV_FAILED;
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| 100 | }
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| 101 |
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| 102 | return CURLE_OK;
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| 103 | }
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| 104 |
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| 105 | void convert_cleanup(void)
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| 106 | {
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| 107 | /* close iconv conversion descriptors */
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| 108 | if(inbound_cd != (iconv_t)-1)
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| 109 | (void)iconv_close(inbound_cd);
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| 110 | if(outbound_cd != (iconv_t)-1)
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| 111 | (void)iconv_close(outbound_cd);
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| 112 | }
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| 113 |
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| 114 | #endif /* HAVE_ICONV */
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| 115 |
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| 116 | char convert_char(curl_infotype infotype, char this_char)
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| 117 | {
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| 118 | /* determine how this specific character should be displayed */
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| 119 | switch(infotype) {
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| 120 | case CURLINFO_DATA_IN:
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| 121 | case CURLINFO_DATA_OUT:
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| 122 | case CURLINFO_SSL_DATA_IN:
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| 123 | case CURLINFO_SSL_DATA_OUT:
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| 124 | /* data, treat as ASCII */
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| 125 | if((this_char >= 0x20) && (this_char < 0x7f)) {
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| 126 | /* printable ASCII hex value: convert to host encoding */
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| 127 | (void)convert_from_network(&this_char, 1);
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| 128 | }
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| 129 | else {
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| 130 | /* non-printable ASCII, use a replacement character */
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| 131 | return UNPRINTABLE_CHAR;
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| 132 | }
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| 133 | /* fall through to default */
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| 134 | default:
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| 135 | /* treat as host encoding */
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| 136 | if(ISPRINT(this_char)
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| 137 | && (this_char != '\t')
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| 138 | && (this_char != '\r')
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| 139 | && (this_char != '\n')) {
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| 140 | /* printable characters excluding tabs and line end characters */
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| 141 | return this_char;
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| 142 | }
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| 143 | break;
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| 144 | }
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| 145 | /* non-printable, use a replacement character */
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| 146 | return UNPRINTABLE_CHAR;
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| 147 | }
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| 148 |
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| 149 | #endif /* CURL_DOES_CONVERSIONS */
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| 150 |
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