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428
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1 /*
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2 Copyright (C) 1995 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not really in FSF. */
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22
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440
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23 #ifndef INCLUDED_sysfile_h_
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24 #define INCLUDED_sysfile_h_
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25
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428
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26 #include <errno.h>
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27
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442
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28 #ifndef WIN32_NATIVE
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428
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29 #include <sys/errno.h> /* <errno.h> does not always imply this */
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30 #endif
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31
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32 #ifdef HAVE_UNISTD_H
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33 #include <unistd.h>
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34 #endif
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35
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36 #ifndef INCLUDED_FCNTL
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37 # define INCLUDED_FCNTL
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38 # include <fcntl.h>
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39 #endif /* INCLUDED_FCNTL */
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40
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41 /* Load sys/types.h if not already loaded.
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42 In some systems loading it twice is suicidal. */
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43 #ifndef makedev
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44 #include <sys/types.h> /* some typedefs are used in sys/file.h */
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45 #endif
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442
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46
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47 #ifndef WIN32_NATIVE
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428
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48 #include <sys/file.h>
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442
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49 #endif
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50
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428
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51 #include <sys/stat.h>
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442
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52
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53 #ifndef WIN32_NATIVE
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54 /* Some configuration files' definitions for the LOAD_AVE_CVT macro
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55 (like sparc.h's) use macros like FSCALE, defined here. */
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428
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56 #include <sys/param.h>
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442
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57 #endif
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428
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58
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442
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59 #if defined (NeXT) || defined(CYGWIN)
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428
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60 /* what is needed from here? Do others need it too?
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61 O_BINARY is in here under cygwin. */
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62 # include <sys/fcntl.h>
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63 #endif /* NeXT */
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64
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442
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65 #ifdef WIN32_NATIVE
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428
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66 #include <io.h>
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67 #include <direct.h>
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68 #endif
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69
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70 #ifndef STDERR_FILENO
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71 #define STDIN_FILENO 0
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72 #define STDOUT_FILENO 1
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73 #define STDERR_FILENO 2
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74 #endif
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75
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76 #ifndef O_RDONLY
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77 #define O_RDONLY 0
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78 #endif
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79
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80 #ifndef O_WRONLY
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81 #define O_WRONLY 1
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82 #endif
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83
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84 #ifndef O_RDWR
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85 #define O_RDWR 2
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86 #endif
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87
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88 /* file opening defaults */
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89 #ifndef OPEN_BINARY
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90 #ifdef O_BINARY
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91 #define OPEN_BINARY O_BINARY
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92 #else
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93 #define OPEN_BINARY (0)
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94 #endif
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95 #endif
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96
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97 #ifndef OPEN_TEXT
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98 #ifdef O_TEXT
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99 #define OPEN_TEXT O_TEXT
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100 #else
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101 #define OPEN_TEXT (0)
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102 #endif
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103 #endif
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104
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105 #ifndef CREAT_MODE
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442
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106 #ifdef WIN32_NATIVE
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428
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107 #define CREAT_MODE (S_IREAD | S_IWRITE)
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108 #else
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109 #define CREAT_MODE (0666)
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110 #endif
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111 #endif
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112
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113 #ifndef READ_TEXT
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114 #ifdef O_TEXT
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115 #define READ_TEXT "rt"
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116 #else
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117 #define READ_TEXT "r"
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118 #endif
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119 #endif
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120
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121 #ifndef READ_BINARY
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122 #ifdef O_BINARY
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123 #define READ_BINARY "rb"
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124 #else
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125 #define READ_BINARY "r"
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126 #endif
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127 #endif
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128
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442
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129 #ifndef READ_PLUS_TEXT
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130 #ifdef O_TEXT
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131 #define READ_PLUS_TEXT "r+t"
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132 #else
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133 #define READ_PLUS_TEXT "r+"
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134 #endif
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135 #endif
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136
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137 #ifndef READ_PLUS_BINARY
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138 #ifdef O_BINARY
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139 #define READ_PLUS_BINARY "r+b"
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140 #else
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141 #define READ_PLUS_BINARY "r+"
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142 #endif
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143 #endif
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144
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145 #ifndef WRITE_TEXT
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146 #ifdef O_TEXT
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147 #define WRITE_TEXT "wt"
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148 #else
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149 #define WRITE_TEXT "w"
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150 #endif
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151 #endif
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152
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428
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153 #ifndef WRITE_BINARY
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154 #ifdef O_BINARY
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155 #define WRITE_BINARY "wb"
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156 #else
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157 #define WRITE_BINARY "w"
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158 #endif
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159 #endif
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160
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161 #ifndef O_NONBLOCK
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162 #ifdef O_NDELAY
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163 #define O_NONBLOCK O_NDELAY
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164 #else
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165 #define O_NONBLOCK 04000
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166 #endif
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167 #endif
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168
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169 /* if system does not have symbolic links, it does not have lstat.
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170 In that case, use ordinary stat instead. */
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171
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172 #ifndef S_IFLNK
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448
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173 #define lstat xemacs_stat
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428
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174 #endif
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175
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176 #if !S_IRUSR
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177 # if S_IREAD
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178 # define S_IRUSR S_IREAD
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179 # else
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180 # define S_IRUSR 00400
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181 # endif
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182 #endif
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183
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184 #if !S_IWUSR
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185 # if S_IWRITE
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186 # define S_IWUSR S_IWRITE
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187 # else
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188 # define S_IWUSR 00200
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189 # endif
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190 #endif
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191
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192 #if !S_IXUSR
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193 # if S_IEXEC
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194 # define S_IXUSR S_IEXEC
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195 # else
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196 # define S_IXUSR 00100
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197 # endif
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198 #endif
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199
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200 #ifdef STAT_MACROS_BROKEN
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201 #undef S_ISBLK
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202 #undef S_ISCHR
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203 #undef S_ISDIR
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204 #undef S_ISFIFO
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205 #undef S_ISLNK
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206 #undef S_ISMPB
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207 #undef S_ISMPC
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208 #undef S_ISNWK
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209 #undef S_ISREG
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210 #undef S_ISSOCK
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211 #endif /* STAT_MACROS_BROKEN. */
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212
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213 #if !defined(S_ISBLK) && defined(S_IFBLK)
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214 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
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215 #endif
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216 #if !defined(S_ISCHR) && defined(S_IFCHR)
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217 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
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218 #endif
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219 #if !defined(S_ISDIR) && defined(S_IFDIR)
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220 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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221 #endif
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222 #if !defined(S_ISREG) && defined(S_IFREG)
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223 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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224 #endif
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225 #if !defined(S_ISFIFO) && defined(S_IFIFO)
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226 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
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227 #endif
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228 #if !defined(S_ISLNK) && defined(S_IFLNK)
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229 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
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230 #endif
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231 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
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232 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
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233 #endif
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234 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
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235 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
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236 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
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237 #endif
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238 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
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239 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
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240 #endif
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241
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442
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242 /* Client .c files should simply use `PATH_MAX'. */
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243 #ifndef PATH_MAX
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244 # if defined (_POSIX_PATH_MAX)
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245 # define PATH_MAX _POSIX_PATH_MAX
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246 # elif defined (MAXPATHLEN)
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247 # define PATH_MAX MAXPATHLEN
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248 # else
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249 # define PATH_MAX 1024
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250 # endif
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251 #endif
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252
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253 /* MAXPATHLEN is deprecated, but, as of this writing, still used. */
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428
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254 #ifndef MAXPATHLEN
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442
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255 # define MAXPATHLEN 1024
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256 #endif
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257
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258 /* The following definitions are needed under Windows, at least */
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259 #ifndef X_OK
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260 # define X_OK 1
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261 #endif
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428
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262
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442
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263 #ifndef R_OK
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264 # define R_OK 4
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265 #endif
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266
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267 #ifndef W_OK
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268 # define W_OK 2
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269 #endif
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270
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271 #ifndef F_OK
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272 # define F_OK 0
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428
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273 #endif
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274
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275 #ifndef FD_CLOEXEC
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276 # define FD_CLOEXEC 1
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277 #endif
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278
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279 /* Emacs needs to use its own definitions of certain system calls on
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280 some systems (like SunOS 4.1 and USG systems, where the read system
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281 call is interruptible but Emacs expects it not to be; and under
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282 MULE, where all filenames need to be converted to external format).
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283 To do this, we #define read to be sys_read, which is defined in
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284 sysdep.c. We first #undef read, in case some system file defines
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285 read as a macro. sysdep.c doesn't encapsulate read, so the call to
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286 read inside of sys_read will do the right thing.
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287
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288 DONT_ENCAPSULATE is used in files such as sysdep.c that want to
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289 call the actual system calls rather than the encapsulated versions.
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290 Those files can call sys_read to get the (possibly) encapsulated
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291 versions.
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292
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293 IMPORTANT: the redefinition of the system call must occur *after* the
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294 inclusion of any header files that declare or define the system call;
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295 otherwise lots of unfriendly things can happen. This goes for all
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296 encapsulated system calls.
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297
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298 We encapsulate the most common system calls here; we assume their
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299 declarations are in one of the standard header files included above.
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300 Other encapsulations are declared in the appropriate sys*.h file. */
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301
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302 #ifdef ENCAPSULATE_READ
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303 ssize_t sys_read (int, void *, size_t);
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304 #endif
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305 #if defined (ENCAPSULATE_READ) && !defined (DONT_ENCAPSULATE)
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306 # undef read
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307 # define read sys_read
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308 #endif
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309 #if !defined (ENCAPSULATE_READ) && defined (DONT_ENCAPSULATE)
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310 # define sys_read read
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311 #endif
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312
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313 #ifdef ENCAPSULATE_WRITE
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442
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314 ssize_t sys_write (int, const void *, size_t);
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428
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315 #endif
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316 #if defined (ENCAPSULATE_WRITE) && !defined (DONT_ENCAPSULATE)
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317 # undef write
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318 # define write sys_write
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319 #endif
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320 #if !defined (ENCAPSULATE_WRITE) && defined (DONT_ENCAPSULATE)
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321 # define sys_write write
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322 #endif
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323
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324 #ifdef ENCAPSULATE_OPEN
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442
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325 int sys_open (const char *, int, ...);
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428
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326 #endif
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327 #if defined (ENCAPSULATE_OPEN) && !defined (DONT_ENCAPSULATE)
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328 # undef open
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329 # define open sys_open
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330 #endif
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331 #if !defined (ENCAPSULATE_OPEN) && defined (DONT_ENCAPSULATE)
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332 # define sys_open open
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333 #endif
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334
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335 #ifdef ENCAPSULATE_CLOSE
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336 int sys_close (int);
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337 #endif
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338 #if defined (ENCAPSULATE_CLOSE) && !defined (DONT_ENCAPSULATE)
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339 # undef close
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340 # define close sys_close
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341 #endif
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342 #if !defined (ENCAPSULATE_CLOSE) && defined (DONT_ENCAPSULATE)
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343 # define sys_close close
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344 #endif
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345
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346 /* Now the stdio versions ... */
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347
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348 #ifdef ENCAPSULATE_FREAD
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349 size_t sys_fread (void *, size_t, size_t, FILE *);
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350 #endif
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351 #if defined (ENCAPSULATE_FREAD) && !defined (DONT_ENCAPSULATE)
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352 # undef fread
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353 # define fread sys_fread
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354 #endif
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355 #if !defined (ENCAPSULATE_FREAD) && defined (DONT_ENCAPSULATE)
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356 # define sys_fread fread
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357 #endif
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358
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359 #ifdef ENCAPSULATE_FWRITE
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442
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360 size_t sys_fwrite (const void *, size_t, size_t, FILE *);
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428
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361 #endif
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362 #if defined (ENCAPSULATE_FWRITE) && !defined (DONT_ENCAPSULATE)
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363 # undef fwrite
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364 # define fwrite sys_fwrite
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365 #endif
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366 #if !defined (ENCAPSULATE_FWRITE) && defined (DONT_ENCAPSULATE)
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367 # define sys_fwrite fwrite
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368 #endif
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369
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370 #ifdef ENCAPSULATE_FOPEN
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442
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371 FILE *sys_fopen (const char *, const char *);
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428
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372 #endif
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373 #if defined (ENCAPSULATE_FOPEN) && !defined (DONT_ENCAPSULATE)
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374 # undef fopen
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375 # define fopen sys_fopen
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376 #endif
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377 #if !defined (ENCAPSULATE_FOPEN) && defined (DONT_ENCAPSULATE)
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378 # define sys_fopen fopen
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379 #endif
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380
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381 #ifdef ENCAPSULATE_FCLOSE
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382 int sys_fclose (FILE *);
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383 #endif
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384 #if defined (ENCAPSULATE_FCLOSE) && !defined (DONT_ENCAPSULATE)
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385 # undef fclose
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386 # define fclose sys_fclose
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387 #endif
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388 #if !defined (ENCAPSULATE_FCLOSE) && defined (DONT_ENCAPSULATE)
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389 # define sys_fclose fclose
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390 #endif
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391
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392
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393 /* encapsulations: file-information calls */
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394
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395 #ifdef ENCAPSULATE_ACCESS
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442
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396 int sys_access (const char *path, int mode);
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428
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397 #endif
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398 #if defined (ENCAPSULATE_ACCESS) && !defined (DONT_ENCAPSULATE)
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399 # undef access
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400 # define access sys_access
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401 #endif
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402 #if !defined (ENCAPSULATE_ACCESS) && defined (DONT_ENCAPSULATE)
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403 # define sys_access access
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404 #endif
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405
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406 #ifdef ENCAPSULATE_EACCESS
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442
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407 int sys_eaccess (const char *path, int mode);
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428
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408 #endif
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409 #if defined (ENCAPSULATE_EACCESS) && !defined (DONT_ENCAPSULATE)
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410 # undef eaccess
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411 # define eaccess sys_eaccess
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412 #endif
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413 #if !defined (ENCAPSULATE_EACCESS) && defined (DONT_ENCAPSULATE)
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414 # define sys_eaccess eaccess
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415 #endif
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416
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417 #ifdef ENCAPSULATE_LSTAT
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442
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418 int sys_lstat (const char *path, struct stat *buf);
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428
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419 #endif
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420 #if defined (ENCAPSULATE_LSTAT) && !defined (DONT_ENCAPSULATE)
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421 # undef lstat
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422 # define lstat sys_lstat
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423 #endif
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424 #if !defined (ENCAPSULATE_LSTAT) && defined (DONT_ENCAPSULATE)
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425 # define sys_lstat lstat
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426 #endif
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427
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428 #ifdef ENCAPSULATE_READLINK
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442
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429 int sys_readlink (const char *path, char *buf, size_t bufsiz);
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428
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430 #endif
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431 #if defined (ENCAPSULATE_READLINK) && !defined (DONT_ENCAPSULATE)
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432 # undef readlink
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433 # define readlink sys_readlink
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434 #endif
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435 #if !defined (ENCAPSULATE_READLINK) && defined (DONT_ENCAPSULATE)
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436 # define sys_readlink readlink
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437 #endif
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438
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432
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439 #ifdef ENCAPSULATE_FSTAT
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440 int sys_fstat (int fd, struct stat *buf);
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441 #endif
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442 #if defined (ENCAPSULATE_FSTAT) && !defined (DONT_ENCAPSULATE)
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443 # undef fstat
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442
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444 # define fstat sys_fstat
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432
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445 #endif
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446 #if !defined (ENCAPSULATE_FSTAT) && defined (DONT_ENCAPSULATE)
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447 # define sys_fstat fstat
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448 #endif
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449
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442
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450 int xemacs_stat (const char *path, struct stat *buf);
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428
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451
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452 /* encapsulations: file-manipulation calls */
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453
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454 #ifdef ENCAPSULATE_CHMOD
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442
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455 int sys_chmod (const char *path, mode_t mode);
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428
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456 #endif
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457 #if defined (ENCAPSULATE_CHMOD) && !defined (DONT_ENCAPSULATE)
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458 # undef chmod
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459 # define chmod sys_chmod
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460 #endif
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461 #if !defined (ENCAPSULATE_CHMOD) && defined (DONT_ENCAPSULATE)
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462 # define sys_chmod chmod
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463 #endif
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464
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465 #ifdef ENCAPSULATE_CREAT
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442
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466 int sys_creat (const char *path, mode_t mode);
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428
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467 #endif
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468 #if defined (ENCAPSULATE_CREAT) && !defined (DONT_ENCAPSULATE)
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469 # undef creat
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470 # define creat sys_creat
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471 #endif
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472 #if !defined (ENCAPSULATE_CREAT) && defined (DONT_ENCAPSULATE)
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473 # define sys_creat creat
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|
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474 #endif
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475
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476 #ifdef ENCAPSULATE_LINK
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442
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477 int sys_link (const char *existing, const char *new);
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428
|
478 #endif
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479 #if defined (ENCAPSULATE_LINK) && !defined (DONT_ENCAPSULATE)
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480 # undef link
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|
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481 # define link sys_link
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|
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482 #endif
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483 #if !defined (ENCAPSULATE_LINK) && defined (DONT_ENCAPSULATE)
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484 # define sys_link link
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|
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485 #endif
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486
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|
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487 #ifdef ENCAPSULATE_RENAME
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442
|
488 int sys_rename (const char *old, const char *new);
|
|
428
|
489 #endif
|
|
|
490 #if defined (ENCAPSULATE_RENAME) && !defined (DONT_ENCAPSULATE)
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491 # undef rename
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|
|
492 # define rename sys_rename
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|
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493 #endif
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494 #if !defined (ENCAPSULATE_RENAME) && defined (DONT_ENCAPSULATE)
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|
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495 # define sys_rename rename
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|
|
496 #endif
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497
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|
|
498 #ifdef ENCAPSULATE_SYMLINK
|
|
442
|
499 int sys_symlink (const char *name1, const char *name2);
|
|
428
|
500 #endif
|
|
|
501 #if defined (ENCAPSULATE_SYMLINK) && !defined (DONT_ENCAPSULATE)
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|
|
502 # undef symlink
|
|
|
503 # define symlink sys_symlink
|
|
|
504 #endif
|
|
|
505 #if !defined (ENCAPSULATE_SYMLINK) && defined (DONT_ENCAPSULATE)
|
|
|
506 # define sys_symlink symlink
|
|
|
507 #endif
|
|
|
508
|
|
|
509 #ifdef ENCAPSULATE_UNLINK
|
|
442
|
510 int sys_unlink (const char *path);
|
|
428
|
511 #endif
|
|
|
512 #if defined (ENCAPSULATE_UNLINK) && !defined (DONT_ENCAPSULATE)
|
|
|
513 # undef unlink
|
|
|
514 # define unlink sys_unlink
|
|
|
515 #endif
|
|
|
516 #if !defined (ENCAPSULATE_UNLINK) && defined (DONT_ENCAPSULATE)
|
|
|
517 # define sys_unlink unlink
|
|
|
518 #endif
|
|
|
519
|
|
|
520 #ifdef ENCAPSULATE_EXECVP
|
|
442
|
521 int sys_execvp (const char *, char * const *);
|
|
428
|
522 #endif
|
|
|
523 #if defined (ENCAPSULATE_EXECVP) && !defined (DONT_ENCAPSULATE)
|
|
|
524 # undef execvp
|
|
|
525 # define execvp sys_execvp
|
|
|
526 #endif
|
|
|
527 #if !defined (ENCAPSULATE_EXECVP) && defined (DONT_ENCAPSULATE)
|
|
|
528 # define sys_execvp execvp
|
|
|
529 #endif
|
|
440
|
530
|
|
|
531 #endif /* INCLUDED_sysfile_h_ */
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