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 - 2015, 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 |
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23 | #include "curl_setup.h"
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24 |
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25 | #include <curl/curl.h>
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26 |
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27 | #include "urldata.h"
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28 | #include "sendf.h"
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29 | #include "connect.h"
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30 | #include "vtls/vtls.h"
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31 | #include "ssh.h"
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32 | #include "multiif.h"
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33 | #include "non-ascii.h"
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34 | #include "curl_printf.h"
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35 | #include "strerror.h"
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36 |
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37 | /* The last #include files should be: */
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38 | #include "curl_memory.h"
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39 | #include "memdebug.h"
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40 |
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41 | #ifdef CURL_DO_LINEEND_CONV
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42 | /*
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43 | * convert_lineends() changes CRLF (\r\n) end-of-line markers to a single LF
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44 | * (\n), with special processing for CRLF sequences that are split between two
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45 | * blocks of data. Remaining, bare CRs are changed to LFs. The possibly new
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46 | * size of the data is returned.
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47 | */
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48 | static size_t convert_lineends(struct SessionHandle *data,
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49 | char *startPtr, size_t size)
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50 | {
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51 | char *inPtr, *outPtr;
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52 |
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53 | /* sanity check */
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54 | if((startPtr == NULL) || (size < 1)) {
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55 | return size;
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56 | }
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57 |
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58 | if(data->state.prev_block_had_trailing_cr) {
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59 | /* The previous block of incoming data
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60 | had a trailing CR, which was turned into a LF. */
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61 | if(*startPtr == '\n') {
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62 | /* This block of incoming data starts with the
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63 | previous block's LF so get rid of it */
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64 | memmove(startPtr, startPtr+1, size-1);
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65 | size--;
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66 | /* and it wasn't a bare CR but a CRLF conversion instead */
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67 | data->state.crlf_conversions++;
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68 | }
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69 | data->state.prev_block_had_trailing_cr = FALSE; /* reset the flag */
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70 | }
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71 |
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72 | /* find 1st CR, if any */
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73 | inPtr = outPtr = memchr(startPtr, '\r', size);
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74 | if(inPtr) {
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75 | /* at least one CR, now look for CRLF */
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76 | while(inPtr < (startPtr+size-1)) {
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77 | /* note that it's size-1, so we'll never look past the last byte */
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78 | if(memcmp(inPtr, "\r\n", 2) == 0) {
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79 | /* CRLF found, bump past the CR and copy the NL */
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80 | inPtr++;
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81 | *outPtr = *inPtr;
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82 | /* keep track of how many CRLFs we converted */
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83 | data->state.crlf_conversions++;
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84 | }
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85 | else {
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86 | if(*inPtr == '\r') {
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87 | /* lone CR, move LF instead */
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88 | *outPtr = '\n';
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89 | }
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90 | else {
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91 | /* not a CRLF nor a CR, just copy whatever it is */
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92 | *outPtr = *inPtr;
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93 | }
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94 | }
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95 | outPtr++;
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96 | inPtr++;
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97 | } /* end of while loop */
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98 |
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99 | if(inPtr < startPtr+size) {
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100 | /* handle last byte */
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101 | if(*inPtr == '\r') {
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102 | /* deal with a CR at the end of the buffer */
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103 | *outPtr = '\n'; /* copy a NL instead */
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104 | /* note that a CRLF might be split across two blocks */
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105 | data->state.prev_block_had_trailing_cr = TRUE;
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106 | }
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107 | else {
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108 | /* copy last byte */
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109 | *outPtr = *inPtr;
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110 | }
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111 | outPtr++;
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112 | }
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113 | if(outPtr < startPtr+size)
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114 | /* tidy up by null terminating the now shorter data */
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115 | *outPtr = '\0';
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116 |
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117 | return (outPtr - startPtr);
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118 | }
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119 | return size;
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120 | }
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121 | #endif /* CURL_DO_LINEEND_CONV */
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122 |
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123 | /* Curl_infof() is for info message along the way */
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124 | #ifndef CURL_DISABLE_VERBOSE_STRINGS
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125 | void Curl_infof(struct SessionHandle *data, const char *fmt, ...)
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126 | {
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127 | if(data && data->set.verbose) {
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128 | va_list ap;
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129 | size_t len;
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130 | char print_buffer[2048 + 1];
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131 | va_start(ap, fmt);
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132 | vsnprintf(print_buffer, sizeof(print_buffer), fmt, ap);
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133 | va_end(ap);
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134 | len = strlen(print_buffer);
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135 | Curl_debug(data, CURLINFO_TEXT, print_buffer, len, NULL);
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136 | }
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137 | }
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138 | #endif
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139 | /* Curl_failf() is for messages stating why we failed.
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140 | * The message SHALL NOT include any LF or CR.
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141 | */
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142 |
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143 | void Curl_failf(struct SessionHandle *data, const char *fmt, ...)
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144 | {
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145 | va_list ap;
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146 | size_t len;
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147 | va_start(ap, fmt);
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148 |
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149 | vsnprintf(data->state.buffer, BUFSIZE, fmt, ap);
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150 |
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151 | if(data->set.errorbuffer && !data->state.errorbuf) {
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152 | snprintf(data->set.errorbuffer, CURL_ERROR_SIZE, "%s", data->state.buffer);
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153 | data->state.errorbuf = TRUE; /* wrote error string */
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154 | }
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155 | if(data->set.verbose) {
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156 | len = strlen(data->state.buffer);
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157 | if(len < BUFSIZE - 1) {
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158 | data->state.buffer[len] = '\n';
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159 | data->state.buffer[++len] = '\0';
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160 | }
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161 | Curl_debug(data, CURLINFO_TEXT, data->state.buffer, len, NULL);
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162 | }
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163 |
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164 | va_end(ap);
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165 | }
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166 |
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167 | /* Curl_sendf() sends formated data to the server */
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168 | CURLcode Curl_sendf(curl_socket_t sockfd, struct connectdata *conn,
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169 | const char *fmt, ...)
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170 | {
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171 | struct SessionHandle *data = conn->data;
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172 | ssize_t bytes_written;
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173 | size_t write_len;
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174 | CURLcode result = CURLE_OK;
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175 | char *s;
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176 | char *sptr;
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177 | va_list ap;
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178 | va_start(ap, fmt);
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179 | s = vaprintf(fmt, ap); /* returns an allocated string */
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180 | va_end(ap);
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181 | if(!s)
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182 | return CURLE_OUT_OF_MEMORY; /* failure */
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183 |
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184 | bytes_written=0;
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185 | write_len = strlen(s);
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186 | sptr = s;
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187 |
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188 | for(;;) {
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189 | /* Write the buffer to the socket */
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190 | result = Curl_write(conn, sockfd, sptr, write_len, &bytes_written);
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191 |
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192 | if(result)
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193 | break;
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194 |
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195 | if(data->set.verbose)
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196 | Curl_debug(data, CURLINFO_DATA_OUT, sptr, (size_t)bytes_written, conn);
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197 |
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198 | if((size_t)bytes_written != write_len) {
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199 | /* if not all was written at once, we must advance the pointer, decrease
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200 | the size left and try again! */
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201 | write_len -= bytes_written;
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202 | sptr += bytes_written;
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203 | }
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204 | else
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205 | break;
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206 | }
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207 |
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208 | free(s); /* free the output string */
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209 |
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210 | return result;
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211 | }
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212 |
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213 | /*
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214 | * Curl_write() is an internal write function that sends data to the
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215 | * server. Works with plain sockets, SCP, SSL or kerberos.
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216 | *
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217 | * If the write would block (CURLE_AGAIN), we return CURLE_OK and
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218 | * (*written == 0). Otherwise we return regular CURLcode value.
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219 | */
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220 | CURLcode Curl_write(struct connectdata *conn,
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221 | curl_socket_t sockfd,
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222 | const void *mem,
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223 | size_t len,
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224 | ssize_t *written)
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225 | {
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226 | ssize_t bytes_written;
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227 | CURLcode result = CURLE_OK;
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228 | int num = (sockfd == conn->sock[SECONDARYSOCKET]);
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229 |
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230 | bytes_written = conn->send[num](conn, num, mem, len, &result);
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231 |
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232 | *written = bytes_written;
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233 | if(bytes_written >= 0)
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234 | /* we completely ignore the curlcode value when subzero is not returned */
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235 | return CURLE_OK;
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236 |
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237 | /* handle CURLE_AGAIN or a send failure */
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238 | switch(result) {
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239 | case CURLE_AGAIN:
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240 | *written = 0;
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241 | return CURLE_OK;
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242 |
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243 | case CURLE_OK:
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244 | /* general send failure */
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245 | return CURLE_SEND_ERROR;
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246 |
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247 | default:
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248 | /* we got a specific curlcode, forward it */
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249 | return result;
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250 | }
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251 | }
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252 |
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253 | ssize_t Curl_send_plain(struct connectdata *conn, int num,
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254 | const void *mem, size_t len, CURLcode *code)
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255 | {
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256 | curl_socket_t sockfd = conn->sock[num];
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257 | ssize_t bytes_written = swrite(sockfd, mem, len);
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258 |
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259 | *code = CURLE_OK;
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260 | if(-1 == bytes_written) {
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261 | int err = SOCKERRNO;
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262 |
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263 | if(
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264 | #ifdef WSAEWOULDBLOCK
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265 | /* This is how Windows does it */
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266 | (WSAEWOULDBLOCK == err)
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267 | #else
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268 | /* errno may be EWOULDBLOCK or on some systems EAGAIN when it returned
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269 | due to its inability to send off data without blocking. We therefor
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270 | treat both error codes the same here */
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271 | (EWOULDBLOCK == err) || (EAGAIN == err) || (EINTR == err)
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272 | #endif
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273 | ) {
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274 | /* this is just a case of EWOULDBLOCK */
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275 | bytes_written=0;
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276 | *code = CURLE_AGAIN;
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277 | }
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278 | else {
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279 | failf(conn->data, "Send failure: %s",
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280 | Curl_strerror(conn, err));
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281 | conn->data->state.os_errno = err;
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282 | *code = CURLE_SEND_ERROR;
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283 | }
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284 | }
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285 | return bytes_written;
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286 | }
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287 |
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288 | /*
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289 | * Curl_write_plain() is an internal write function that sends data to the
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290 | * server using plain sockets only. Otherwise meant to have the exact same
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291 | * proto as Curl_write()
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292 | */
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293 | CURLcode Curl_write_plain(struct connectdata *conn,
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294 | curl_socket_t sockfd,
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295 | const void *mem,
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296 | size_t len,
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297 | ssize_t *written)
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298 | {
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299 | ssize_t bytes_written;
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300 | CURLcode result;
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301 | int num = (sockfd == conn->sock[SECONDARYSOCKET]);
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302 |
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303 | bytes_written = Curl_send_plain(conn, num, mem, len, &result);
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304 |
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305 | *written = bytes_written;
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306 |
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307 | return result;
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308 | }
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309 |
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310 | ssize_t Curl_recv_plain(struct connectdata *conn, int num, char *buf,
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311 | size_t len, CURLcode *code)
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312 | {
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313 | curl_socket_t sockfd = conn->sock[num];
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314 | ssize_t nread = sread(sockfd, buf, len);
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315 |
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316 | *code = CURLE_OK;
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317 | if(-1 == nread) {
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318 | int err = SOCKERRNO;
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319 |
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320 | if(
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321 | #ifdef WSAEWOULDBLOCK
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322 | /* This is how Windows does it */
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323 | (WSAEWOULDBLOCK == err)
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324 | #else
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325 | /* errno may be EWOULDBLOCK or on some systems EAGAIN when it returned
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326 | due to its inability to send off data without blocking. We therefor
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327 | treat both error codes the same here */
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328 | (EWOULDBLOCK == err) || (EAGAIN == err) || (EINTR == err)
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329 | #endif
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330 | ) {
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331 | /* this is just a case of EWOULDBLOCK */
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332 | *code = CURLE_AGAIN;
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333 | }
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334 | else {
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335 | failf(conn->data, "Recv failure: %s",
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336 | Curl_strerror(conn, err));
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337 | conn->data->state.os_errno = err;
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338 | *code = CURLE_RECV_ERROR;
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339 | }
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340 | }
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341 | return nread;
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342 | }
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343 |
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344 | static CURLcode pausewrite(struct SessionHandle *data,
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345 | int type, /* what type of data */
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346 | const char *ptr,
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347 | size_t len)
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348 | {
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349 | /* signalled to pause sending on this connection, but since we have data
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350 | we want to send we need to dup it to save a copy for when the sending
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351 | is again enabled */
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352 | struct SingleRequest *k = &data->req;
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353 | char *dupl = malloc(len);
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354 | if(!dupl)
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355 | return CURLE_OUT_OF_MEMORY;
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356 |
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357 | memcpy(dupl, ptr, len);
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358 |
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359 | /* store this information in the state struct for later use */
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360 | data->state.tempwrite = dupl;
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361 | data->state.tempwritesize = len;
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362 | data->state.tempwritetype = type;
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363 |
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364 | /* mark the connection as RECV paused */
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365 | k->keepon |= KEEP_RECV_PAUSE;
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366 |
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367 | DEBUGF(infof(data, "Pausing with %zu bytes in buffer for type %02x\n",
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368 | len, type));
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369 |
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370 | return CURLE_OK;
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371 | }
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372 |
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373 |
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374 | /* Curl_client_chop_write() writes chunks of data not larger than
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375 | * CURL_MAX_WRITE_SIZE via client write callback(s) and
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376 | * takes care of pause requests from the callbacks.
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377 | */
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378 | CURLcode Curl_client_chop_write(struct connectdata *conn,
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379 | int type,
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380 | char * ptr,
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381 | size_t len)
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382 | {
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383 | struct SessionHandle *data = conn->data;
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384 | curl_write_callback writeheader = NULL;
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385 | curl_write_callback writebody = NULL;
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386 |
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387 | if(!len)
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388 | return CURLE_OK;
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389 |
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390 | /* If reading is actually paused, we're forced to append this chunk of data
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391 | to the already held data, but only if it is the same type as otherwise it
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392 | can't work and it'll return error instead. */
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393 | if(data->req.keepon & KEEP_RECV_PAUSE) {
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394 | size_t newlen;
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395 | char *newptr;
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396 | if(type != data->state.tempwritetype)
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397 | /* major internal confusion */
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398 | return CURLE_RECV_ERROR;
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399 |
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400 | DEBUGASSERT(data->state.tempwrite);
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401 |
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402 | /* figure out the new size of the data to save */
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403 | newlen = len + data->state.tempwritesize;
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404 | /* allocate the new memory area */
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405 | newptr = realloc(data->state.tempwrite, newlen);
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406 | if(!newptr)
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407 | return CURLE_OUT_OF_MEMORY;
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408 | /* copy the new data to the end of the new area */
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409 | memcpy(newptr + data->state.tempwritesize, ptr, len);
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410 | /* update the pointer and the size */
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411 | data->state.tempwrite = newptr;
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412 | data->state.tempwritesize = newlen;
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413 | return CURLE_OK;
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414 | }
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415 |
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416 | /* Determine the callback(s) to use. */
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417 | if(type & CLIENTWRITE_BODY)
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418 | writebody = data->set.fwrite_func;
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419 | if((type & CLIENTWRITE_HEADER) &&
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420 | (data->set.fwrite_header || data->set.writeheader)) {
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421 | /*
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422 | * Write headers to the same callback or to the especially setup
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423 | * header callback function (added after version 7.7.1).
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424 | */
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425 | writeheader =
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426 | data->set.fwrite_header? data->set.fwrite_header: data->set.fwrite_func;
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427 | }
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428 |
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429 | /* Chop data, write chunks. */
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430 | while(len) {
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431 | size_t chunklen = len <= CURL_MAX_WRITE_SIZE? len: CURL_MAX_WRITE_SIZE;
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432 |
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433 | if(writebody) {
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434 | size_t wrote = writebody(ptr, 1, chunklen, data->set.out);
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435 |
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436 | if(CURL_WRITEFUNC_PAUSE == wrote) {
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437 | if(conn->handler->flags & PROTOPT_NONETWORK) {
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438 | /* Protocols that work without network cannot be paused. This is
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439 | actually only FILE:// just now, and it can't pause since the
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440 | transfer isn't done using the "normal" procedure. */
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441 | failf(data, "Write callback asked for PAUSE when not supported!");
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442 | return CURLE_WRITE_ERROR;
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443 | }
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444 | else
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445 | return pausewrite(data, type, ptr, len);
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446 | }
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447 | else if(wrote != chunklen) {
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448 | failf(data, "Failed writing body (%zu != %zu)", wrote, chunklen);
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449 | return CURLE_WRITE_ERROR;
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450 | }
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451 | }
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452 |
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453 | if(writeheader) {
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454 | size_t wrote = writeheader(ptr, 1, chunklen, data->set.writeheader);
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455 |
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456 | if(CURL_WRITEFUNC_PAUSE == wrote)
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457 | /* here we pass in the HEADER bit only since if this was body as well
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458 | then it was passed already and clearly that didn't trigger the
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---|
459 | pause, so this is saved for later with the HEADER bit only */
|
---|
460 | return pausewrite(data, CLIENTWRITE_HEADER, ptr, len);
|
---|
461 |
|
---|
462 | if(wrote != chunklen) {
|
---|
463 | failf (data, "Failed writing header");
|
---|
464 | return CURLE_WRITE_ERROR;
|
---|
465 | }
|
---|
466 | }
|
---|
467 |
|
---|
468 | ptr += chunklen;
|
---|
469 | len -= chunklen;
|
---|
470 | }
|
---|
471 |
|
---|
472 | return CURLE_OK;
|
---|
473 | }
|
---|
474 |
|
---|
475 |
|
---|
476 | /* Curl_client_write() sends data to the write callback(s)
|
---|
477 |
|
---|
478 | The bit pattern defines to what "streams" to write to. Body and/or header.
|
---|
479 | The defines are in sendf.h of course.
|
---|
480 |
|
---|
481 | If CURL_DO_LINEEND_CONV is enabled, data is converted IN PLACE to the
|
---|
482 | local character encoding. This is a problem and should be changed in
|
---|
483 | the future to leave the original data alone.
|
---|
484 | */
|
---|
485 | CURLcode Curl_client_write(struct connectdata *conn,
|
---|
486 | int type,
|
---|
487 | char *ptr,
|
---|
488 | size_t len)
|
---|
489 | {
|
---|
490 | struct SessionHandle *data = conn->data;
|
---|
491 |
|
---|
492 | if(0 == len)
|
---|
493 | len = strlen(ptr);
|
---|
494 |
|
---|
495 | /* FTP data may need conversion. */
|
---|
496 | if((type & CLIENTWRITE_BODY) &&
|
---|
497 | (conn->handler->protocol & PROTO_FAMILY_FTP) &&
|
---|
498 | conn->proto.ftpc.transfertype == 'A') {
|
---|
499 | /* convert from the network encoding */
|
---|
500 | CURLcode result = Curl_convert_from_network(data, ptr, len);
|
---|
501 | /* Curl_convert_from_network calls failf if unsuccessful */
|
---|
502 | if(result)
|
---|
503 | return result;
|
---|
504 |
|
---|
505 | #ifdef CURL_DO_LINEEND_CONV
|
---|
506 | /* convert end-of-line markers */
|
---|
507 | len = convert_lineends(data, ptr, len);
|
---|
508 | #endif /* CURL_DO_LINEEND_CONV */
|
---|
509 | }
|
---|
510 |
|
---|
511 | return Curl_client_chop_write(conn, type, ptr, len);
|
---|
512 | }
|
---|
513 |
|
---|
514 | CURLcode Curl_read_plain(curl_socket_t sockfd,
|
---|
515 | char *buf,
|
---|
516 | size_t bytesfromsocket,
|
---|
517 | ssize_t *n)
|
---|
518 | {
|
---|
519 | ssize_t nread = sread(sockfd, buf, bytesfromsocket);
|
---|
520 |
|
---|
521 | if(-1 == nread) {
|
---|
522 | int err = SOCKERRNO;
|
---|
523 | int return_error;
|
---|
524 | #ifdef USE_WINSOCK
|
---|
525 | return_error = WSAEWOULDBLOCK == err;
|
---|
526 | #else
|
---|
527 | return_error = EWOULDBLOCK == err || EAGAIN == err || EINTR == err;
|
---|
528 | #endif
|
---|
529 | if(return_error)
|
---|
530 | return CURLE_AGAIN;
|
---|
531 | else
|
---|
532 | return CURLE_RECV_ERROR;
|
---|
533 | }
|
---|
534 |
|
---|
535 | /* we only return number of bytes read when we return OK */
|
---|
536 | *n = nread;
|
---|
537 | return CURLE_OK;
|
---|
538 | }
|
---|
539 |
|
---|
540 | /*
|
---|
541 | * Internal read-from-socket function. This is meant to deal with plain
|
---|
542 | * sockets, SSL sockets and kerberos sockets.
|
---|
543 | *
|
---|
544 | * Returns a regular CURLcode value.
|
---|
545 | */
|
---|
546 | CURLcode Curl_read(struct connectdata *conn, /* connection data */
|
---|
547 | curl_socket_t sockfd, /* read from this socket */
|
---|
548 | char *buf, /* store read data here */
|
---|
549 | size_t sizerequested, /* max amount to read */
|
---|
550 | ssize_t *n) /* amount bytes read */
|
---|
551 | {
|
---|
552 | CURLcode result = CURLE_RECV_ERROR;
|
---|
553 | ssize_t nread = 0;
|
---|
554 | size_t bytesfromsocket = 0;
|
---|
555 | char *buffertofill = NULL;
|
---|
556 | bool pipelining = Curl_pipeline_wanted(conn->data->multi, CURLPIPE_HTTP1);
|
---|
557 |
|
---|
558 | /* Set 'num' to 0 or 1, depending on which socket that has been sent here.
|
---|
559 | If it is the second socket, we set num to 1. Otherwise to 0. This lets
|
---|
560 | us use the correct ssl handle. */
|
---|
561 | int num = (sockfd == conn->sock[SECONDARYSOCKET]);
|
---|
562 |
|
---|
563 | *n=0; /* reset amount to zero */
|
---|
564 |
|
---|
565 | /* If session can pipeline, check connection buffer */
|
---|
566 | if(pipelining) {
|
---|
567 | size_t bytestocopy = CURLMIN(conn->buf_len - conn->read_pos,
|
---|
568 | sizerequested);
|
---|
569 |
|
---|
570 | /* Copy from our master buffer first if we have some unread data there*/
|
---|
571 | if(bytestocopy > 0) {
|
---|
572 | memcpy(buf, conn->master_buffer + conn->read_pos, bytestocopy);
|
---|
573 | conn->read_pos += bytestocopy;
|
---|
574 | conn->bits.stream_was_rewound = FALSE;
|
---|
575 |
|
---|
576 | *n = (ssize_t)bytestocopy;
|
---|
577 | return CURLE_OK;
|
---|
578 | }
|
---|
579 | /* If we come here, it means that there is no data to read from the buffer,
|
---|
580 | * so we read from the socket */
|
---|
581 | bytesfromsocket = CURLMIN(sizerequested, BUFSIZE * sizeof (char));
|
---|
582 | buffertofill = conn->master_buffer;
|
---|
583 | }
|
---|
584 | else {
|
---|
585 | bytesfromsocket = CURLMIN((long)sizerequested,
|
---|
586 | conn->data->set.buffer_size ?
|
---|
587 | conn->data->set.buffer_size : BUFSIZE);
|
---|
588 | buffertofill = buf;
|
---|
589 | }
|
---|
590 |
|
---|
591 | nread = conn->recv[num](conn, num, buffertofill, bytesfromsocket, &result);
|
---|
592 | if(nread < 0)
|
---|
593 | return result;
|
---|
594 |
|
---|
595 | if(pipelining) {
|
---|
596 | memcpy(buf, conn->master_buffer, nread);
|
---|
597 | conn->buf_len = nread;
|
---|
598 | conn->read_pos = nread;
|
---|
599 | }
|
---|
600 |
|
---|
601 | *n += nread;
|
---|
602 |
|
---|
603 | return CURLE_OK;
|
---|
604 | }
|
---|
605 |
|
---|
606 | /* return 0 on success */
|
---|
607 | static int showit(struct SessionHandle *data, curl_infotype type,
|
---|
608 | char *ptr, size_t size)
|
---|
609 | {
|
---|
610 | static const char s_infotype[CURLINFO_END][3] = {
|
---|
611 | "* ", "< ", "> ", "{ ", "} ", "{ ", "} " };
|
---|
612 |
|
---|
613 | #ifdef CURL_DOES_CONVERSIONS
|
---|
614 | char buf[BUFSIZE+1];
|
---|
615 | size_t conv_size = 0;
|
---|
616 |
|
---|
617 | switch(type) {
|
---|
618 | case CURLINFO_HEADER_OUT:
|
---|
619 | /* assume output headers are ASCII */
|
---|
620 | /* copy the data into my buffer so the original is unchanged */
|
---|
621 | if(size > BUFSIZE) {
|
---|
622 | size = BUFSIZE; /* truncate if necessary */
|
---|
623 | buf[BUFSIZE] = '\0';
|
---|
624 | }
|
---|
625 | conv_size = size;
|
---|
626 | memcpy(buf, ptr, size);
|
---|
627 | /* Special processing is needed for this block if it
|
---|
628 | * contains both headers and data (separated by CRLFCRLF).
|
---|
629 | * We want to convert just the headers, leaving the data as-is.
|
---|
630 | */
|
---|
631 | if(size > 4) {
|
---|
632 | size_t i;
|
---|
633 | for(i = 0; i < size-4; i++) {
|
---|
634 | if(memcmp(&buf[i], "\x0d\x0a\x0d\x0a", 4) == 0) {
|
---|
635 | /* convert everything through this CRLFCRLF but no further */
|
---|
636 | conv_size = i + 4;
|
---|
637 | break;
|
---|
638 | }
|
---|
639 | }
|
---|
640 | }
|
---|
641 |
|
---|
642 | Curl_convert_from_network(data, buf, conv_size);
|
---|
643 | /* Curl_convert_from_network calls failf if unsuccessful */
|
---|
644 | /* we might as well continue even if it fails... */
|
---|
645 | ptr = buf; /* switch pointer to use my buffer instead */
|
---|
646 | break;
|
---|
647 | default:
|
---|
648 | /* leave everything else as-is */
|
---|
649 | break;
|
---|
650 | }
|
---|
651 | #endif /* CURL_DOES_CONVERSIONS */
|
---|
652 |
|
---|
653 | if(data->set.fdebug)
|
---|
654 | return (*data->set.fdebug)(data, type, ptr, size,
|
---|
655 | data->set.debugdata);
|
---|
656 |
|
---|
657 | switch(type) {
|
---|
658 | case CURLINFO_TEXT:
|
---|
659 | case CURLINFO_HEADER_OUT:
|
---|
660 | case CURLINFO_HEADER_IN:
|
---|
661 | fwrite(s_infotype[type], 2, 1, data->set.err);
|
---|
662 | fwrite(ptr, size, 1, data->set.err);
|
---|
663 | #ifdef CURL_DOES_CONVERSIONS
|
---|
664 | if(size != conv_size) {
|
---|
665 | /* we had untranslated data so we need an explicit newline */
|
---|
666 | fwrite("\n", 1, 1, data->set.err);
|
---|
667 | }
|
---|
668 | #endif
|
---|
669 | break;
|
---|
670 | default: /* nada */
|
---|
671 | break;
|
---|
672 | }
|
---|
673 | return 0;
|
---|
674 | }
|
---|
675 |
|
---|
676 | int Curl_debug(struct SessionHandle *data, curl_infotype type,
|
---|
677 | char *ptr, size_t size,
|
---|
678 | struct connectdata *conn)
|
---|
679 | {
|
---|
680 | int rc;
|
---|
681 | if(data->set.printhost && conn && conn->host.dispname) {
|
---|
682 | char buffer[160];
|
---|
683 | const char *t=NULL;
|
---|
684 | const char *w="Data";
|
---|
685 | switch (type) {
|
---|
686 | case CURLINFO_HEADER_IN:
|
---|
687 | w = "Header";
|
---|
688 | /* FALLTHROUGH */
|
---|
689 | case CURLINFO_DATA_IN:
|
---|
690 | t = "from";
|
---|
691 | break;
|
---|
692 | case CURLINFO_HEADER_OUT:
|
---|
693 | w = "Header";
|
---|
694 | /* FALLTHROUGH */
|
---|
695 | case CURLINFO_DATA_OUT:
|
---|
696 | t = "to";
|
---|
697 | break;
|
---|
698 | default:
|
---|
699 | break;
|
---|
700 | }
|
---|
701 |
|
---|
702 | if(t) {
|
---|
703 | snprintf(buffer, sizeof(buffer), "[%s %s %s]", w, t,
|
---|
704 | conn->host.dispname);
|
---|
705 | rc = showit(data, CURLINFO_TEXT, buffer, strlen(buffer));
|
---|
706 | if(rc)
|
---|
707 | return rc;
|
---|
708 | }
|
---|
709 | }
|
---|
710 | rc = showit(data, type, ptr, size);
|
---|
711 | return rc;
|
---|
712 | }
|
---|