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1 /* crypto/bio/bss_null.c */ |
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2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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3 * All rights reserved. |
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4 * |
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5 * This package is an SSL implementation written |
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6 * by Eric Young (eay@cryptsoft.com). |
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7 * The implementation was written so as to conform with Netscapes SSL. |
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8 * |
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9 * This library is free for commercial and non-commercial use as long as |
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10 * the following conditions are aheared to. The following conditions |
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11 * apply to all code found in this distribution, be it the RC4, RSA, |
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12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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13 * included with this distribution is covered by the same copyright terms |
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14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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15 * |
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16 * Copyright remains Eric Young's, and as such any Copyright notices in |
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17 * the code are not to be removed. |
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18 * If this package is used in a product, Eric Young should be given attribution |
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19 * as the author of the parts of the library used. |
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20 * This can be in the form of a textual message at program startup or |
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21 * in documentation (online or textual) provided with the package. |
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22 * |
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23 * Redistribution and use in source and binary forms, with or without |
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24 * modification, are permitted provided that the following conditions |
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25 * are met: |
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26 * 1. Redistributions of source code must retain the copyright |
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27 * notice, this list of conditions and the following disclaimer. |
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28 * 2. Redistributions in binary form must reproduce the above copyright |
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29 * notice, this list of conditions and the following disclaimer in the |
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30 * documentation and/or other materials provided with the distribution. |
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31 * 3. All advertising materials mentioning features or use of this software |
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32 * must display the following acknowledgement: |
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33 * "This product includes cryptographic software written by |
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34 * Eric Young (eay@cryptsoft.com)" |
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35 * The word 'cryptographic' can be left out if the rouines from the library |
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36 * being used are not cryptographic related :-). |
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37 * 4. If you include any Windows specific code (or a derivative thereof) from |
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38 * the apps directory (application code) you must include an acknowledgement: |
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39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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40 * |
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41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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51 * SUCH DAMAGE. |
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52 * |
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53 * The licence and distribution terms for any publically available version or |
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54 * derivative of this code cannot be changed. i.e. this code cannot simply be |
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55 * copied and put under another distribution licence |
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56 * [including the GNU Public Licence.] |
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57 */ |
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58 /* |
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59 © Portions copyright (c) 2006 Nokia Corporation. All rights reserved. |
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60 */ |
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61 |
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62 |
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63 |
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64 #include <stdio.h> |
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65 #include <errno.h> |
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66 #include "cryptlib.h" |
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67 #include <openssl/bio.h> |
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68 #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__))) |
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69 #include "libcrypto_wsd_macros.h" |
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70 #include "libcrypto_wsd.h" |
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71 #endif |
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72 |
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73 static int null_write(BIO *h, const char *buf, int num); |
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74 static int null_read(BIO *h, char *buf, int size); |
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75 static int null_puts(BIO *h, const char *str); |
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76 static int null_gets(BIO *h, char *str, int size); |
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77 static long null_ctrl(BIO *h, int cmd, long arg1, void *arg2); |
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78 static int null_new(BIO *h); |
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79 static int null_free(BIO *data); |
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80 #ifndef EMULATOR |
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81 static BIO_METHOD null_method= |
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82 { |
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83 BIO_TYPE_NULL, |
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84 "NULL", |
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85 null_write, |
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86 null_read, |
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87 null_puts, |
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88 null_gets, |
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89 null_ctrl, |
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90 null_new, |
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91 null_free, |
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92 NULL, |
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93 }; |
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94 #else |
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95 GET_STATIC_VAR_FROM_TLS(null_method,bss_null,BIO_METHOD) |
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96 #define null_method (*GET_WSD_VAR_NAME(null_method,bss_null, s)()) |
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97 const BIO_METHOD temp_s_null_method= |
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98 { |
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99 BIO_TYPE_NULL, |
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100 "NULL", |
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101 null_write, |
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102 null_read, |
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103 null_puts, |
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104 null_gets, |
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105 null_ctrl, |
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106 null_new, |
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107 null_free, |
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108 NULL, |
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109 }; |
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110 |
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111 #endif |
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112 |
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113 EXPORT_C BIO_METHOD *BIO_s_null(void) |
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114 { |
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115 return(&null_method); |
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116 } |
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117 |
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118 static int null_new(BIO *bi) |
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119 { |
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120 bi->init=1; |
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121 bi->num=0; |
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122 bi->ptr=(NULL); |
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123 return(1); |
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124 } |
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125 |
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126 static int null_free(BIO *a) |
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127 { |
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128 if (a == NULL) return(0); |
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129 return(1); |
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130 } |
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131 |
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132 static int null_read(BIO *b, char *out, int outl) |
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133 { |
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134 return(0); |
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135 } |
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136 |
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137 static int null_write(BIO *b, const char *in, int inl) |
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138 { |
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139 return(inl); |
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140 } |
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141 |
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142 static long null_ctrl(BIO *b, int cmd, long num, void *ptr) |
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143 { |
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144 long ret=1; |
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145 |
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146 switch (cmd) |
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147 { |
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148 case BIO_CTRL_RESET: |
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149 case BIO_CTRL_EOF: |
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150 case BIO_CTRL_SET: |
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151 case BIO_CTRL_SET_CLOSE: |
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152 case BIO_CTRL_FLUSH: |
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153 case BIO_CTRL_DUP: |
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154 ret=1; |
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155 break; |
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156 case BIO_CTRL_GET_CLOSE: |
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157 case BIO_CTRL_INFO: |
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158 case BIO_CTRL_GET: |
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159 case BIO_CTRL_PENDING: |
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160 case BIO_CTRL_WPENDING: |
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161 default: |
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162 ret=0; |
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163 break; |
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164 } |
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165 return(ret); |
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166 } |
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167 |
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168 static int null_gets(BIO *bp, char *buf, int size) |
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169 { |
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170 return(0); |
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171 } |
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172 |
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173 static int null_puts(BIO *bp, const char *str) |
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174 { |
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175 if (str == NULL) return(0); |
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176 return(strlen(str)); |
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177 } |
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178 |