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1 /* conf_api.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 /* Part of the code in here was originally in conf.c, which is now removed */ |
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60 |
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61 #ifndef CONF_DEBUG |
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62 # undef NDEBUG /* avoid conflicting definitions */ |
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63 # define NDEBUG |
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64 #endif |
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65 |
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66 #include <assert.h> |
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67 #include <string.h> |
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68 #include <openssl/conf.h> |
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69 #include <openssl/conf_api.h> |
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70 #include "e_os.h" |
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71 |
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72 static void value_free_hash(CONF_VALUE *a, LHASH *conf); |
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73 static void value_free_stack(CONF_VALUE *a,LHASH *conf); |
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74 static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_hash, CONF_VALUE *, LHASH *) |
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75 static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_stack, CONF_VALUE *, LHASH *) |
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76 /* We don't use function pointer casting or wrapper functions - but cast each |
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77 * callback parameter inside the callback functions. */ |
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78 /* static unsigned long hash(CONF_VALUE *v); */ |
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79 static unsigned long hash(const void *v_void); |
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80 /* static int cmp_conf(CONF_VALUE *a,CONF_VALUE *b); */ |
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81 static int cmp_conf(const void *a_void,const void *b_void); |
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82 |
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83 /* Up until OpenSSL 0.9.5a, this was get_section */ |
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84 EXPORT_C CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section) |
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85 { |
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86 CONF_VALUE *v,vv; |
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87 |
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88 if ((conf == NULL) || (section == NULL)) return(NULL); |
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89 vv.name=NULL; |
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90 vv.section=(char *)section; |
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91 v=(CONF_VALUE *)lh_retrieve(conf->data,&vv); |
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92 return(v); |
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93 } |
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94 |
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95 /* Up until OpenSSL 0.9.5a, this was CONF_get_section */ |
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96 EXPORT_C STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf, |
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97 const char *section) |
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98 { |
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99 CONF_VALUE *v; |
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100 |
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101 v=_CONF_get_section(conf,section); |
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102 if (v != NULL) |
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103 return((STACK_OF(CONF_VALUE) *)v->value); |
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104 else |
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105 return(NULL); |
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106 } |
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107 |
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108 EXPORT_C int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value) |
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109 { |
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110 CONF_VALUE *v = NULL; |
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111 STACK_OF(CONF_VALUE) *ts; |
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112 |
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113 ts = (STACK_OF(CONF_VALUE) *)section->value; |
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114 |
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115 value->section=section->section; |
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116 if (!sk_CONF_VALUE_push(ts,value)) |
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117 { |
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118 return 0; |
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119 } |
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120 |
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121 v = (CONF_VALUE *)lh_insert(conf->data, value); |
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122 if (v != NULL) |
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123 { |
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124 (void)sk_CONF_VALUE_delete_ptr(ts,v); |
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125 OPENSSL_free(v->name); |
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126 OPENSSL_free(v->value); |
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127 OPENSSL_free(v); |
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128 } |
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129 return 1; |
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130 } |
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131 |
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132 EXPORT_C char *_CONF_get_string(const CONF *conf, const char *section, const char *name) |
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133 { |
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134 CONF_VALUE *v,vv; |
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135 char *p; |
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136 |
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137 if (name == NULL) return(NULL); |
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138 if (conf != NULL) |
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139 { |
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140 if (section != NULL) |
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141 { |
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142 vv.name=(char *)name; |
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143 vv.section=(char *)section; |
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144 v=(CONF_VALUE *)lh_retrieve(conf->data,&vv); |
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145 if (v != NULL) return(v->value); |
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146 if (strcmp(section,"ENV") == 0) |
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147 { |
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148 p=Getenv(name); |
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149 if (p != NULL) return(p); |
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150 } |
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151 } |
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152 vv.section="default"; |
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153 vv.name=(char *)name; |
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154 v=(CONF_VALUE *)lh_retrieve(conf->data,&vv); |
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155 if (v != NULL) |
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156 return(v->value); |
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157 else |
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158 return(NULL); |
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159 } |
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160 else |
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161 return(Getenv(name)); |
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162 } |
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163 |
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164 #if 0 /* There's no way to provide error checking with this function, so |
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165 force implementors of the higher levels to get a string and read |
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166 the number themselves. */ |
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167 EXPORT_C long _CONF_get_number(CONF *conf, char *section, char *name) |
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168 { |
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169 char *str; |
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170 long ret=0; |
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171 |
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172 str=_CONF_get_string(conf,section,name); |
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173 if (str == NULL) return(0); |
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174 for (;;) |
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175 { |
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176 if (conf->meth->is_number(conf, *str)) |
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177 ret=ret*10+conf->meth->to_int(conf, *str); |
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178 else |
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179 return(ret); |
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180 str++; |
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181 } |
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182 } |
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183 #endif |
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184 |
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185 EXPORT_C int _CONF_new_data(CONF *conf) |
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186 { |
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187 if (conf == NULL) |
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188 { |
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189 return 0; |
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190 } |
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191 if (conf->data == NULL) |
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192 if ((conf->data = lh_new(hash, cmp_conf)) == NULL) |
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193 { |
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194 return 0; |
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195 } |
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196 return 1; |
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197 } |
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198 |
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199 EXPORT_C void _CONF_free_data(CONF *conf) |
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200 { |
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201 if (conf == NULL || conf->data == NULL) return; |
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202 |
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203 conf->data->down_load=0; /* evil thing to make sure the 'OPENSSL_free()' |
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204 * works as expected */ |
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205 lh_doall_arg(conf->data, LHASH_DOALL_ARG_FN(value_free_hash), |
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206 conf->data); |
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207 |
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208 /* We now have only 'section' entries in the hash table. |
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209 * Due to problems with */ |
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210 |
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211 lh_doall_arg(conf->data, LHASH_DOALL_ARG_FN(value_free_stack), |
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212 conf->data); |
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213 lh_free(conf->data); |
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214 } |
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215 |
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216 static void value_free_hash(CONF_VALUE *a, LHASH *conf) |
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217 { |
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218 if (a->name != NULL) |
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219 { |
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220 a=(CONF_VALUE *)lh_delete(conf,a); |
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221 } |
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222 } |
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223 |
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224 static void value_free_stack(CONF_VALUE *a, LHASH *conf) |
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225 { |
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226 CONF_VALUE *vv; |
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227 STACK *sk; |
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228 int i; |
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229 |
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230 if (a->name != NULL) return; |
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231 |
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232 sk=(STACK *)a->value; |
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233 for (i=sk_num(sk)-1; i>=0; i--) |
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234 { |
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235 vv=(CONF_VALUE *)sk_value(sk,i); |
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236 OPENSSL_free(vv->value); |
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237 OPENSSL_free(vv->name); |
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238 OPENSSL_free(vv); |
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239 } |
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240 if (sk != NULL) sk_free(sk); |
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241 OPENSSL_free(a->section); |
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242 OPENSSL_free(a); |
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243 } |
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244 |
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245 /* static unsigned long hash(CONF_VALUE *v) */ |
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246 static unsigned long hash(const void *v_void) |
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247 { |
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248 CONF_VALUE *v = (CONF_VALUE *)v_void; |
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249 return((lh_strhash(v->section)<<2)^lh_strhash(v->name)); |
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250 } |
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251 |
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252 /* static int cmp_conf(CONF_VALUE *a, CONF_VALUE *b) */ |
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253 static int cmp_conf(const void *a_void,const void *b_void) |
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254 { |
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255 int i; |
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256 CONF_VALUE *a = (CONF_VALUE *)a_void; |
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257 CONF_VALUE *b = (CONF_VALUE *)b_void; |
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258 |
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259 if (a->section != b->section) |
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260 { |
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261 i=strcmp(a->section,b->section); |
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262 if (i) return(i); |
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263 } |
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264 |
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265 if ((a->name != NULL) && (b->name != NULL)) |
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266 { |
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267 i=strcmp(a->name,b->name); |
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268 return(i); |
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269 } |
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270 else if (a->name == b->name) |
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271 return(0); |
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272 else |
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273 return((a->name == NULL)?-1:1); |
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274 } |
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275 |
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276 /* Up until OpenSSL 0.9.5a, this was new_section */ |
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277 EXPORT_C CONF_VALUE *_CONF_new_section(CONF *conf, const char *section) |
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278 { |
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279 STACK *sk=NULL; |
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280 int ok=0,i; |
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281 CONF_VALUE *v=NULL,*vv; |
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282 |
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283 if ((sk=sk_new_null()) == NULL) |
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284 goto err; |
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285 if ((v=(CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE))) == NULL) |
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286 goto err; |
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287 i=strlen(section)+1; |
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288 if ((v->section=(char *)OPENSSL_malloc(i)) == NULL) |
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289 goto err; |
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290 |
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291 memcpy(v->section,section,i); |
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292 v->name=NULL; |
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293 v->value=(char *)sk; |
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294 |
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295 vv=(CONF_VALUE *)lh_insert(conf->data,v); |
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296 assert(vv == NULL); |
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297 ok=1; |
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298 err: |
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299 if (!ok) |
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300 { |
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301 if (sk != NULL) sk_free(sk); |
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302 if (v != NULL) OPENSSL_free(v); |
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303 v=NULL; |
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304 } |
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305 return(v); |
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306 } |
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307 |
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308 IMPLEMENT_STACK_OF(CONF_VALUE) |