1 | /*
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2 | Unix SMB/CIFS implementation.
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3 |
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4 | macros to go along with the lib/replace/ portability layer code
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5 |
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6 | Copyright (C) Andrew Tridgell 2005
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7 | Copyright (C) Jelmer Vernooij 2006-2008
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8 | Copyright (C) Jeremy Allison 2007.
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9 |
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10 | ** NOTE! The following LGPL license applies to the replace
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11 | ** library. This does NOT imply that all of Samba is released
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12 | ** under the LGPL
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13 |
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14 | This library is free software; you can redistribute it and/or
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15 | modify it under the terms of the GNU Lesser General Public
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16 | License as published by the Free Software Foundation; either
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17 | version 3 of the License, or (at your option) any later version.
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18 |
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19 | This library is distributed in the hope that it will be useful,
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20 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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22 | Lesser General Public License for more details.
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23 |
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24 | You should have received a copy of the GNU Lesser General Public
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25 | License along with this library; if not, see <http://www.gnu.org/licenses/>.
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26 | */
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27 |
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28 | #ifndef _LIBREPLACE_REPLACE_H
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29 | #define _LIBREPLACE_REPLACE_H
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30 |
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31 | #ifndef NO_CONFIG_H
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32 | #include "config.h"
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33 | #endif
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34 |
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35 | #ifdef HAVE_STANDARDS_H
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36 | #include <standards.h>
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37 | #endif
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38 |
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39 | #include <stdio.h>
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40 | #include <stdlib.h>
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41 | #include <stdarg.h>
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42 | #include <errno.h>
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43 |
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44 | #if defined(_MSC_VER) || defined(__MINGW32__)
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45 | #include "win32_replace.h"
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46 | #endif
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47 |
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48 |
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49 | #ifdef HAVE_STDINT_H
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50 | #include <stdint.h>
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51 | /* force off HAVE_INTTYPES_H so that roken doesn't try to include both,
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52 | which causes a warning storm on irix */
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53 | #undef HAVE_INTTYPES_H
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54 | #elif HAVE_INTTYPES_H
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55 | #define __STDC_FORMAT_MACROS
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56 | #include <inttypes.h>
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57 | #endif
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58 |
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59 | #ifndef __PRI64_PREFIX
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60 | # if __WORDSIZE == 64
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61 | # define __PRI64_PREFIX "l"
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62 | # else
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63 | # define __PRI64_PREFIX "ll"
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64 | # endif
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65 | #endif
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66 |
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67 | /* Decimal notation. */
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68 | #ifndef PRId8
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69 | # define PRId8 "d"
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70 | #endif
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71 | #ifndef PRId16
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72 | # define PRId16 "d"
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73 | #endif
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74 | #ifndef PRId32
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75 | # define PRId32 "d"
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76 | #endif
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77 | #ifndef PRId64
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78 | # define PRId64 __PRI64_PREFIX "d"
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79 | #endif
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80 |
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81 | #ifndef PRIi8
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82 | # define PRIi8 "i"
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83 | #endif
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84 | #ifndef PRIi8
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85 | # define PRIi16 "i"
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86 | #endif
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87 | #ifndef PRIi8
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88 | # define PRIi32 "i"
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89 | #endif
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90 | #ifndef PRIi8
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91 | # define PRIi64 __PRI64_PREFIX "i"
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92 | #endif
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93 |
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94 | #ifndef PRIu8
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95 | # define PRIu8 "u"
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96 | #endif
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97 | #ifndef PRIu16
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98 | # define PRIu16 "u"
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99 | #endif
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100 | #ifndef PRIu32
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101 | # define PRIu32 "u"
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102 | #endif
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103 | #ifndef PRIu64
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104 | # define PRIu64 __PRI64_PREFIX "u"
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105 | #endif
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106 |
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107 | #ifdef HAVE_STRING_H
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108 | #include <string.h>
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109 | #endif
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110 |
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111 | #ifdef HAVE_STRINGS_H
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112 | #include <strings.h>
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113 | #endif
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114 |
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115 | #ifdef HAVE_SYS_TYPES_H
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116 | #include <sys/types.h>
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117 | #endif
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118 |
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119 | #if STDC_HEADERS
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120 | #include <stdlib.h>
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121 | #include <stddef.h>
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122 | #endif
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123 |
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124 | #ifndef HAVE_STRERROR
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125 | extern char *sys_errlist[];
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126 | #define strerror(i) sys_errlist[i]
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127 | #endif
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128 |
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129 | #ifndef HAVE_ERRNO_DECL
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130 | extern int errno;
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131 | #endif
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132 |
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133 | #ifndef HAVE_STRDUP
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134 | #define strdup rep_strdup
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135 | char *rep_strdup(const char *s);
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136 | #endif
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137 |
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138 | #ifndef HAVE_MEMMOVE
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139 | #define memmove rep_memmove
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140 | void *rep_memmove(void *dest,const void *src,int size);
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141 | #endif
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142 |
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143 | #ifndef HAVE_MKTIME
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144 | #define mktime rep_mktime
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145 | /* prototype is in "system/time.h" */
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146 | #endif
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147 |
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148 | #ifndef HAVE_TIMEGM
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149 | #define timegm rep_timegm
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150 | /* prototype is in "system/time.h" */
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151 | #endif
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152 |
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153 | #ifndef HAVE_UTIME
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154 | #define utime rep_utime
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155 | /* prototype is in "system/time.h" */
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156 | #endif
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157 |
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158 | #ifndef HAVE_UTIMES
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159 | #define utimes rep_utimes
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160 | /* prototype is in "system/time.h" */
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161 | #endif
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162 |
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163 | #ifndef HAVE_STRLCPY
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164 | #define strlcpy rep_strlcpy
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165 | size_t rep_strlcpy(char *d, const char *s, size_t bufsize);
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166 | #endif
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167 |
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168 | #ifndef HAVE_STRLCAT
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169 | #define strlcat rep_strlcat
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170 | size_t rep_strlcat(char *d, const char *s, size_t bufsize);
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171 | #endif
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172 |
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173 | #if (defined(BROKEN_STRNDUP) || !defined(HAVE_STRNDUP))
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174 | #undef HAVE_STRNDUP
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175 | #define strndup rep_strndup
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176 | char *rep_strndup(const char *s, size_t n);
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177 | #endif
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178 |
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179 | #if (defined(BROKEN_STRNLEN) || !defined(HAVE_STRNLEN))
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180 | #undef HAVE_STRNLEN
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181 | #define strnlen rep_strnlen
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182 | size_t rep_strnlen(const char *s, size_t n);
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183 | #endif
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184 |
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185 | #if !HAVE_DECL_ENVIRON
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186 | #ifdef __APPLE__
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187 | #include <crt_externs.h>
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188 | #define environ (*_NSGetEnviron())
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189 | #else
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190 | extern char **environ;
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191 | #endif
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192 | #endif
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193 |
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194 | #ifndef HAVE_SETENV
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195 | #define setenv rep_setenv
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196 | int rep_setenv(const char *name, const char *value, int overwrite);
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197 | #else
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198 | #ifndef HAVE_SETENV_DECL
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199 | int setenv(const char *name, const char *value, int overwrite);
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200 | #endif
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201 | #endif
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202 |
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203 | #ifndef HAVE_UNSETENV
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204 | #define unsetenv rep_unsetenv
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205 | int rep_unsetenv(const char *name);
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206 | #endif
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207 |
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208 | #ifndef HAVE_SETEUID
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209 | #define seteuid rep_seteuid
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210 | int rep_seteuid(uid_t);
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211 | #endif
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212 |
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213 | #ifndef HAVE_SETEGID
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214 | #define setegid rep_setegid
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215 | int rep_setegid(gid_t);
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216 | #endif
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217 |
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218 | #if (defined(USE_SETRESUID) && !defined(HAVE_SETRESUID_DECL))
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219 | /* stupid glibc */
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220 | int setresuid(uid_t ruid, uid_t euid, uid_t suid);
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221 | #endif
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222 | #if (defined(USE_SETRESUID) && !defined(HAVE_SETRESGID_DECL))
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223 | int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
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224 | #endif
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225 |
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226 | #ifndef HAVE_CHOWN
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227 | #define chown rep_chown
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228 | int rep_chown(const char *path, uid_t uid, gid_t gid);
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229 | #endif
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230 |
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231 | #ifndef HAVE_CHROOT
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232 | #define chroot rep_chroot
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233 | int rep_chroot(const char *dirname);
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234 | #endif
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235 |
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236 | #ifndef HAVE_LINK
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237 | #define link rep_link
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238 | int rep_link(const char *oldpath, const char *newpath);
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239 | #endif
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240 |
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241 | #ifndef HAVE_READLINK
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242 | #define readlink rep_readlink
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243 | ssize_t rep_readlink(const char *path, char *buf, size_t bufsize);
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244 | #endif
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245 |
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246 | #ifndef HAVE_SYMLINK
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247 | #define symlink rep_symlink
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248 | int rep_symlink(const char *oldpath, const char *newpath);
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249 | #endif
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250 |
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251 | #ifndef HAVE_REALPATH
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252 | #define realpath rep_realpath
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253 | char *rep_realpath(const char *path, char *resolved_path);
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254 | #endif
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255 |
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256 | #ifndef HAVE_LCHOWN
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257 | #define lchown rep_lchown
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258 | int rep_lchown(const char *fname,uid_t uid,gid_t gid);
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259 | #endif
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260 |
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261 | #ifdef HAVE_UNIX_H
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262 | #include <unix.h>
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263 | #endif
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264 |
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265 | #ifndef HAVE_SETLINEBUF
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266 | #define setlinebuf rep_setlinebuf
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267 | void rep_setlinebuf(FILE *);
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268 | #endif
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269 |
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270 | #ifndef HAVE_STRCASESTR
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271 | #define strcasestr rep_strcasestr
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272 | char *rep_strcasestr(const char *haystack, const char *needle);
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273 | #endif
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274 |
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275 | #ifndef HAVE_STRTOK_R
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276 | #define strtok_r rep_strtok_r
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277 | char *rep_strtok_r(char *s, const char *delim, char **save_ptr);
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278 | #endif
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279 |
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280 | #ifndef HAVE_STRTOLL
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281 | #define strtoll rep_strtoll
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282 | long long int rep_strtoll(const char *str, char **endptr, int base);
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283 | #endif
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284 |
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285 | #ifndef HAVE_STRTOULL
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286 | #define strtoull rep_strtoull
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287 | unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
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288 | #endif
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289 |
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290 | #ifndef HAVE_FTRUNCATE
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291 | #define ftruncate rep_ftruncate
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292 | int rep_ftruncate(int,off_t);
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293 | #endif
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294 |
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295 | #ifndef HAVE_INITGROUPS
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296 | #define initgroups rep_initgroups
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297 | int rep_initgroups(char *name, gid_t id);
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298 | #endif
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299 |
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300 | #if !defined(HAVE_BZERO) && defined(HAVE_MEMSET)
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301 | #define bzero(a,b) memset((a),'\0',(b))
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302 | #endif
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303 |
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304 | #ifndef HAVE_DLERROR
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305 | #define dlerror rep_dlerror
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306 | char *rep_dlerror(void);
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307 | #endif
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308 |
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309 | #ifndef HAVE_DLOPEN
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310 | #define dlopen rep_dlopen
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311 | #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
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312 | void *rep_dlopen(const char *name, unsigned int flags);
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313 | #else
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314 | void *rep_dlopen(const char *name, int flags);
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315 | #endif
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316 | #endif
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317 |
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318 | #ifndef HAVE_DLSYM
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319 | #define dlsym rep_dlsym
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320 | void *rep_dlsym(void *handle, const char *symbol);
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321 | #endif
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322 |
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323 | #ifndef HAVE_DLCLOSE
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324 | #define dlclose rep_dlclose
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325 | int rep_dlclose(void *handle);
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326 | #endif
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327 |
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328 | #ifndef HAVE_SOCKETPAIR
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329 | #define socketpair rep_socketpair
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330 | /* prototype is in system/network.h */
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331 | #endif
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332 |
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333 | #ifndef PRINTF_ATTRIBUTE
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334 | #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
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335 | /** Use gcc attribute to check printf fns. a1 is the 1-based index of
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336 | * the parameter containing the format, and a2 the index of the first
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337 | * argument. Note that some gcc 2.x versions don't handle this
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338 | * properly **/
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339 | #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
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340 | #else
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341 | #define PRINTF_ATTRIBUTE(a1, a2)
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342 | #endif
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343 | #endif
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344 |
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345 | #ifndef _DEPRECATED_
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346 | #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
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347 | #define _DEPRECATED_ __attribute__ ((deprecated))
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348 | #else
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349 | #define _DEPRECATED_
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350 | #endif
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351 | #endif
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352 |
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353 | #ifndef HAVE_VASPRINTF
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354 | #define vasprintf rep_vasprintf
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355 | int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
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356 | #endif
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357 |
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358 | #if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
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359 | #define snprintf rep_snprintf
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360 | int rep_snprintf(char *,size_t ,const char *, ...) PRINTF_ATTRIBUTE(3,4);
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361 | #endif
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362 |
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363 | #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
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364 | #define vsnprintf rep_vsnprintf
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365 | int rep_vsnprintf(char *,size_t ,const char *, va_list ap) PRINTF_ATTRIBUTE(3,0);
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366 | #endif
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367 |
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368 | #ifndef HAVE_ASPRINTF
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369 | #define asprintf rep_asprintf
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370 | int rep_asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
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371 | #endif
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372 |
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373 | #ifndef HAVE_VSYSLOG
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374 | #ifdef HAVE_SYSLOG
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375 | #define vsyslog rep_vsyslog
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376 | void rep_vsyslog (int facility_priority, const char *format, va_list arglist) PRINTF_ATTRIBUTE(2,0);
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377 | #endif
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378 | #endif
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379 |
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380 | /* we used to use these fns, but now we have good replacements
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381 | for snprintf and vsnprintf */
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382 | #define slprintf snprintf
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383 |
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384 |
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385 | #ifndef HAVE_VA_COPY
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386 | #undef va_copy
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387 | #ifdef HAVE___VA_COPY
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388 | #define va_copy(dest, src) __va_copy(dest, src)
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389 | #else
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390 | #define va_copy(dest, src) (dest) = (src)
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391 | #endif
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392 | #endif
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393 |
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394 | #ifndef HAVE_VOLATILE
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395 | #define volatile
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396 | #endif
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397 |
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398 | #ifndef HAVE_COMPARISON_FN_T
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399 | typedef int (*comparison_fn_t)(const void *, const void *);
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400 | #endif
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401 |
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402 | #ifdef REPLACE_STRPTIME
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403 | #define strptime rep_strptime
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404 | struct tm;
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405 | char *rep_strptime(const char *buf, const char *format, struct tm *tm);
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406 | #endif
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407 |
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408 | #ifndef HAVE_DUP2
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409 | #define dup2 rep_dup2
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410 | int rep_dup2(int oldfd, int newfd);
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411 | #endif
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412 |
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413 | /* Load header file for dynamic linking stuff */
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414 | #ifdef HAVE_DLFCN_H
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415 | #include <dlfcn.h>
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416 | #endif
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417 |
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418 | #ifndef RTLD_LAZY
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419 | #define RTLD_LAZY 0
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420 | #endif
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421 | #ifndef RTLD_NOW
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422 | #define RTLD_NOW 0
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423 | #endif
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424 | #ifndef RTLD_GLOBAL
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425 | #define RTLD_GLOBAL 0
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426 | #endif
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427 |
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428 | #ifndef HAVE_SECURE_MKSTEMP
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429 | #define mkstemp(path) rep_mkstemp(path)
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430 | int rep_mkstemp(char *temp);
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431 | #endif
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432 |
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433 | #ifndef HAVE_MKDTEMP
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434 | #define mkdtemp rep_mkdtemp
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435 | char *rep_mkdtemp(char *template);
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436 | #endif
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437 |
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438 | #ifndef HAVE_PREAD
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439 | #define pread rep_pread
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440 | ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
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441 | #define LIBREPLACE_PREAD_REPLACED 1
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442 | #else
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443 | #define LIBREPLACE_PREAD_NOT_REPLACED 1
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444 | #endif
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445 |
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446 | #ifndef HAVE_PWRITE
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447 | #define pwrite rep_pwrite
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448 | ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
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449 | #define LIBREPLACE_PWRITE_REPLACED 1
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450 | #else
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451 | #define LIBREPLACE_PWRITE_NOT_REPLACED 1
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452 | #endif
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453 |
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454 | #if !defined(HAVE_INET_NTOA) || defined(REPLACE_INET_NTOA)
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455 | #define inet_ntoa rep_inet_ntoa
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456 | /* prototype is in "system/network.h" */
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457 | #endif
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458 |
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459 | #ifndef HAVE_INET_PTON
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460 | #define inet_pton rep_inet_pton
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461 | /* prototype is in "system/network.h" */
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462 | #endif
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463 |
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464 | #ifndef HAVE_INET_NTOP
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465 | #define inet_ntop rep_inet_ntop
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466 | /* prototype is in "system/network.h" */
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467 | #endif
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468 |
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469 | #ifndef HAVE_INET_ATON
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470 | #define inet_aton rep_inet_aton
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471 | /* prototype is in "system/network.h" */
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472 | #endif
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473 |
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474 | #ifndef HAVE_CONNECT
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475 | #define connect rep_connect
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476 | /* prototype is in "system/network.h" */
|
---|
477 | #endif
|
---|
478 |
|
---|
479 | #ifndef HAVE_GETHOSTBYNAME
|
---|
480 | #define gethostbyname rep_gethostbyname
|
---|
481 | /* prototype is in "system/network.h" */
|
---|
482 | #endif
|
---|
483 |
|
---|
484 | #ifndef HAVE_GETIFADDRS
|
---|
485 | #define getifaddrs rep_getifaddrs
|
---|
486 | /* prototype is in "system/network.h" */
|
---|
487 | #endif
|
---|
488 |
|
---|
489 | #ifndef HAVE_FREEIFADDRS
|
---|
490 | #define freeifaddrs rep_freeifaddrs
|
---|
491 | /* prototype is in "system/network.h" */
|
---|
492 | #endif
|
---|
493 |
|
---|
494 | #ifdef HAVE_LIMITS_H
|
---|
495 | #include <limits.h>
|
---|
496 | #endif
|
---|
497 |
|
---|
498 | #ifdef HAVE_SYS_PARAM_H
|
---|
499 | #include <sys/param.h>
|
---|
500 | #endif
|
---|
501 |
|
---|
502 | /* The extra casts work around common compiler bugs. */
|
---|
503 | #define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
|
---|
504 | /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
|
---|
505 | It is necessary at least when t == time_t. */
|
---|
506 | #define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
|
---|
507 | ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
|
---|
508 | #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
|
---|
509 |
|
---|
510 | #ifndef UINT16_MAX
|
---|
511 | #define UINT16_MAX 65535
|
---|
512 | #endif
|
---|
513 |
|
---|
514 | #ifndef UINT32_MAX
|
---|
515 | #define UINT32_MAX (4294967295U)
|
---|
516 | #endif
|
---|
517 |
|
---|
518 | #ifndef UINT64_MAX
|
---|
519 | #define UINT64_MAX ((uint64_t)-1)
|
---|
520 | #endif
|
---|
521 |
|
---|
522 | #ifndef CHAR_BIT
|
---|
523 | #define CHAR_BIT 8
|
---|
524 | #endif
|
---|
525 |
|
---|
526 | #ifndef INT32_MAX
|
---|
527 | #define INT32_MAX _TYPE_MAXIMUM(int32_t)
|
---|
528 | #endif
|
---|
529 |
|
---|
530 | #ifdef HAVE_STDBOOL_H
|
---|
531 | #include <stdbool.h>
|
---|
532 | #endif
|
---|
533 |
|
---|
534 | #if !defined(HAVE_BOOL)
|
---|
535 | #ifdef HAVE__Bool
|
---|
536 | #define bool _Bool
|
---|
537 | #else
|
---|
538 | typedef int bool;
|
---|
539 | #endif
|
---|
540 | #endif
|
---|
541 |
|
---|
542 | #if !defined(HAVE_INTPTR_T)
|
---|
543 | typedef long long intptr_t ;
|
---|
544 | #endif
|
---|
545 |
|
---|
546 | #if !defined(HAVE_UINTPTR_T)
|
---|
547 | typedef unsigned long long uintptr_t ;
|
---|
548 | #endif
|
---|
549 |
|
---|
550 | #if !defined(HAVE_PTRDIFF_T)
|
---|
551 | typedef unsigned long long ptrdiff_t ;
|
---|
552 | #endif
|
---|
553 |
|
---|
554 | /*
|
---|
555 | * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
|
---|
556 | *
|
---|
557 | * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
|
---|
558 | * Tru64 needs _BOOL_EXISTS
|
---|
559 | * AIX needs _BOOL,_TRUE,_FALSE
|
---|
560 | */
|
---|
561 | #ifndef BOOL_DEFINED
|
---|
562 | #define BOOL_DEFINED
|
---|
563 | #endif
|
---|
564 | #ifndef _BOOL_EXISTS
|
---|
565 | #define _BOOL_EXISTS
|
---|
566 | #endif
|
---|
567 | #ifndef _BOOL
|
---|
568 | #define _BOOL
|
---|
569 | #endif
|
---|
570 |
|
---|
571 | #ifndef __bool_true_false_are_defined
|
---|
572 | #define __bool_true_false_are_defined
|
---|
573 | #endif
|
---|
574 |
|
---|
575 | #ifndef true
|
---|
576 | #define true (1)
|
---|
577 | #endif
|
---|
578 | #ifndef false
|
---|
579 | #define false (0)
|
---|
580 | #endif
|
---|
581 |
|
---|
582 | #ifndef _TRUE
|
---|
583 | #define _TRUE true
|
---|
584 | #endif
|
---|
585 | #ifndef _FALSE
|
---|
586 | #define _FALSE false
|
---|
587 | #endif
|
---|
588 |
|
---|
589 | #ifndef HAVE_FUNCTION_MACRO
|
---|
590 | #ifdef HAVE_func_MACRO
|
---|
591 | #define __FUNCTION__ __func__
|
---|
592 | #else
|
---|
593 | #define __FUNCTION__ ("")
|
---|
594 | #endif
|
---|
595 | #endif
|
---|
596 |
|
---|
597 |
|
---|
598 | #ifndef MIN
|
---|
599 | #define MIN(a,b) ((a)<(b)?(a):(b))
|
---|
600 | #endif
|
---|
601 |
|
---|
602 | #ifndef MAX
|
---|
603 | #define MAX(a,b) ((a)>(b)?(a):(b))
|
---|
604 | #endif
|
---|
605 |
|
---|
606 | #if !defined(HAVE_VOLATILE)
|
---|
607 | #define volatile
|
---|
608 | #endif
|
---|
609 |
|
---|
610 | /**
|
---|
611 | this is a warning hack. The idea is to use this everywhere that we
|
---|
612 | get the "discarding const" warning from gcc. That doesn't actually
|
---|
613 | fix the problem of course, but it means that when we do get to
|
---|
614 | cleaning them up we can do it by searching the code for
|
---|
615 | discard_const.
|
---|
616 |
|
---|
617 | It also means that other error types aren't as swamped by the noise
|
---|
618 | of hundreds of const warnings, so we are more likely to notice when
|
---|
619 | we get new errors.
|
---|
620 |
|
---|
621 | Please only add more uses of this macro when you find it
|
---|
622 | _really_ hard to fix const warnings. Our aim is to eventually use
|
---|
623 | this function in only a very few places.
|
---|
624 |
|
---|
625 | Also, please call this via the discard_const_p() macro interface, as that
|
---|
626 | makes the return type safe.
|
---|
627 | */
|
---|
628 | #define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
|
---|
629 |
|
---|
630 | /** Type-safe version of discard_const */
|
---|
631 | #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
|
---|
632 |
|
---|
633 | #ifndef __STRING
|
---|
634 | #define __STRING(x) #x
|
---|
635 | #endif
|
---|
636 |
|
---|
637 | #ifndef __STRINGSTRING
|
---|
638 | #define __STRINGSTRING(x) __STRING(x)
|
---|
639 | #endif
|
---|
640 |
|
---|
641 | #ifndef __LINESTR__
|
---|
642 | #define __LINESTR__ __STRINGSTRING(__LINE__)
|
---|
643 | #endif
|
---|
644 |
|
---|
645 | #ifndef __location__
|
---|
646 | #define __location__ __FILE__ ":" __LINESTR__
|
---|
647 | #endif
|
---|
648 |
|
---|
649 | /**
|
---|
650 | * zero a structure
|
---|
651 | */
|
---|
652 | #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
|
---|
653 |
|
---|
654 | /**
|
---|
655 | * zero a structure given a pointer to the structure
|
---|
656 | */
|
---|
657 | #define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
|
---|
658 |
|
---|
659 | /**
|
---|
660 | * zero a structure given a pointer to the structure - no zero check
|
---|
661 | */
|
---|
662 | #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
|
---|
663 |
|
---|
664 | /* zero an array - note that sizeof(array) must work - ie. it must not be a
|
---|
665 | pointer */
|
---|
666 | #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
|
---|
667 |
|
---|
668 | /**
|
---|
669 | * work out how many elements there are in a static array
|
---|
670 | */
|
---|
671 | #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
|
---|
672 |
|
---|
673 | /**
|
---|
674 | * pointer difference macro
|
---|
675 | */
|
---|
676 | #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
|
---|
677 |
|
---|
678 | #if MMAP_BLACKLIST
|
---|
679 | #undef HAVE_MMAP
|
---|
680 | #endif
|
---|
681 |
|
---|
682 | #ifdef __COMPAR_FN_T
|
---|
683 | #define QSORT_CAST (__compar_fn_t)
|
---|
684 | #endif
|
---|
685 |
|
---|
686 | #ifndef QSORT_CAST
|
---|
687 | #define QSORT_CAST (int (*)(const void *, const void *))
|
---|
688 | #endif
|
---|
689 |
|
---|
690 | #ifndef PATH_MAX
|
---|
691 | #define PATH_MAX 1024
|
---|
692 | #endif
|
---|
693 |
|
---|
694 | #ifndef MAX_DNS_NAME_LENGTH
|
---|
695 | #define MAX_DNS_NAME_LENGTH 256 /* Actually 255 but +1 for terminating null. */
|
---|
696 | #endif
|
---|
697 |
|
---|
698 | #ifndef HAVE_CRYPT
|
---|
699 | char *ufc_crypt(const char *key, const char *salt);
|
---|
700 | #define crypt ufc_crypt
|
---|
701 | #else
|
---|
702 | #ifdef HAVE_CRYPT_H
|
---|
703 | #include <crypt.h>
|
---|
704 | #endif
|
---|
705 | #endif
|
---|
706 |
|
---|
707 | /* these macros gain us a few percent of speed on gcc */
|
---|
708 | #if (__GNUC__ >= 3)
|
---|
709 | /* the strange !! is to ensure that __builtin_expect() takes either 0 or 1
|
---|
710 | as its first argument */
|
---|
711 | #ifndef likely
|
---|
712 | #define likely(x) __builtin_expect(!!(x), 1)
|
---|
713 | #endif
|
---|
714 | #ifndef unlikely
|
---|
715 | #define unlikely(x) __builtin_expect(!!(x), 0)
|
---|
716 | #endif
|
---|
717 | #else
|
---|
718 | #ifndef likely
|
---|
719 | #define likely(x) (x)
|
---|
720 | #endif
|
---|
721 | #ifndef unlikely
|
---|
722 | #define unlikely(x) (x)
|
---|
723 | #endif
|
---|
724 | #endif
|
---|
725 |
|
---|
726 | #endif /* _LIBREPLACE_REPLACE_H */
|
---|