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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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462
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56 #ifdef HAVE_GTK
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57 /* I hate GTK */
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58 #undef MIN
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59 #undef MAX
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60 #endif /* HAVE_GTK */
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428
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61 #include <sys/param.h>
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442
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62 #endif
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428
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63
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442
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64 #if defined (NeXT) || defined(CYGWIN)
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428
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65 /* what is needed from here? Do others need it too?
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66 O_BINARY is in here under cygwin. */
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67 # include <sys/fcntl.h>
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68 #endif /* NeXT */
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69
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442
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70 #ifdef WIN32_NATIVE
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428
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71 #include <io.h>
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72 #include <direct.h>
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73 #endif
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74
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75 #ifndef STDERR_FILENO
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76 #define STDIN_FILENO 0
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77 #define STDOUT_FILENO 1
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78 #define STDERR_FILENO 2
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79 #endif
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80
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81 #ifndef O_RDONLY
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82 #define O_RDONLY 0
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83 #endif
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84
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85 #ifndef O_WRONLY
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86 #define O_WRONLY 1
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87 #endif
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88
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89 #ifndef O_RDWR
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90 #define O_RDWR 2
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91 #endif
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92
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93 /* file opening defaults */
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94 #ifndef OPEN_BINARY
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95 #ifdef O_BINARY
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96 #define OPEN_BINARY O_BINARY
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97 #else
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98 #define OPEN_BINARY (0)
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99 #endif
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100 #endif
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101
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102 #ifndef OPEN_TEXT
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103 #ifdef O_TEXT
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104 #define OPEN_TEXT O_TEXT
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105 #else
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106 #define OPEN_TEXT (0)
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107 #endif
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108 #endif
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109
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110 #ifndef CREAT_MODE
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442
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111 #ifdef WIN32_NATIVE
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428
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112 #define CREAT_MODE (S_IREAD | S_IWRITE)
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113 #else
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114 #define CREAT_MODE (0666)
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115 #endif
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116 #endif
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117
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118 #ifndef READ_TEXT
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119 #ifdef O_TEXT
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120 #define READ_TEXT "rt"
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121 #else
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122 #define READ_TEXT "r"
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123 #endif
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124 #endif
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125
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126 #ifndef READ_BINARY
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127 #ifdef O_BINARY
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128 #define READ_BINARY "rb"
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129 #else
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130 #define READ_BINARY "r"
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131 #endif
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132 #endif
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133
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442
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134 #ifndef READ_PLUS_TEXT
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135 #ifdef O_TEXT
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136 #define READ_PLUS_TEXT "r+t"
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137 #else
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138 #define READ_PLUS_TEXT "r+"
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139 #endif
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140 #endif
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141
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142 #ifndef READ_PLUS_BINARY
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143 #ifdef O_BINARY
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144 #define READ_PLUS_BINARY "r+b"
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145 #else
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146 #define READ_PLUS_BINARY "r+"
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147 #endif
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148 #endif
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149
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150 #ifndef WRITE_TEXT
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151 #ifdef O_TEXT
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152 #define WRITE_TEXT "wt"
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153 #else
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154 #define WRITE_TEXT "w"
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155 #endif
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156 #endif
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157
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428
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158 #ifndef WRITE_BINARY
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159 #ifdef O_BINARY
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160 #define WRITE_BINARY "wb"
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161 #else
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162 #define WRITE_BINARY "w"
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163 #endif
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164 #endif
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165
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166 #ifndef O_NONBLOCK
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167 #ifdef O_NDELAY
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168 #define O_NONBLOCK O_NDELAY
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169 #else
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170 #define O_NONBLOCK 04000
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171 #endif
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172 #endif
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173
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174 /* if system does not have symbolic links, it does not have lstat.
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175 In that case, use ordinary stat instead. */
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176
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177 #ifndef S_IFLNK
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448
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178 #define lstat xemacs_stat
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428
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179 #endif
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180
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181 #if !S_IRUSR
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182 # if S_IREAD
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183 # define S_IRUSR S_IREAD
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184 # else
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185 # define S_IRUSR 00400
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186 # endif
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187 #endif
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188
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189 #if !S_IWUSR
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190 # if S_IWRITE
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191 # define S_IWUSR S_IWRITE
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192 # else
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193 # define S_IWUSR 00200
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194 # endif
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195 #endif
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196
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197 #if !S_IXUSR
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198 # if S_IEXEC
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199 # define S_IXUSR S_IEXEC
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200 # else
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201 # define S_IXUSR 00100
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202 # endif
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203 #endif
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204
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205 #ifdef STAT_MACROS_BROKEN
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206 #undef S_ISBLK
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207 #undef S_ISCHR
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208 #undef S_ISDIR
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209 #undef S_ISFIFO
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210 #undef S_ISLNK
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211 #undef S_ISMPB
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212 #undef S_ISMPC
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213 #undef S_ISNWK
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214 #undef S_ISREG
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215 #undef S_ISSOCK
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216 #endif /* STAT_MACROS_BROKEN. */
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217
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218 #if !defined(S_ISBLK) && defined(S_IFBLK)
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219 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
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220 #endif
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221 #if !defined(S_ISCHR) && defined(S_IFCHR)
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222 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
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223 #endif
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224 #if !defined(S_ISDIR) && defined(S_IFDIR)
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225 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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226 #endif
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227 #if !defined(S_ISREG) && defined(S_IFREG)
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228 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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229 #endif
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230 #if !defined(S_ISFIFO) && defined(S_IFIFO)
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231 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
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232 #endif
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233 #if !defined(S_ISLNK) && defined(S_IFLNK)
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234 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
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235 #endif
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236 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
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237 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
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238 #endif
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239 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
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240 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
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241 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
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242 #endif
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243 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
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244 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
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245 #endif
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246
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442
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247 /* Client .c files should simply use `PATH_MAX'. */
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248 #ifndef PATH_MAX
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249 # if defined (_POSIX_PATH_MAX)
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250 # define PATH_MAX _POSIX_PATH_MAX
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251 # elif defined (MAXPATHLEN)
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252 # define PATH_MAX MAXPATHLEN
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253 # else
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254 # define PATH_MAX 1024
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255 # endif
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256 #endif
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257
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258 /* MAXPATHLEN is deprecated, but, as of this writing, still used. */
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428
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259 #ifndef MAXPATHLEN
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442
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260 # define MAXPATHLEN 1024
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261 #endif
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262
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263 /* The following definitions are needed under Windows, at least */
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264 #ifndef X_OK
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265 # define X_OK 1
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266 #endif
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428
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267
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442
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268 #ifndef R_OK
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269 # define R_OK 4
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270 #endif
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271
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272 #ifndef W_OK
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273 # define W_OK 2
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274 #endif
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275
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276 #ifndef F_OK
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277 # define F_OK 0
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428
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278 #endif
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279
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280 #ifndef FD_CLOEXEC
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281 # define FD_CLOEXEC 1
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282 #endif
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283
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284 /* Emacs needs to use its own definitions of certain system calls on
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285 some systems (like SunOS 4.1 and USG systems, where the read system
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286 call is interruptible but Emacs expects it not to be; and under
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287 MULE, where all filenames need to be converted to external format).
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288 To do this, we #define read to be sys_read, which is defined in
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289 sysdep.c. We first #undef read, in case some system file defines
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290 read as a macro. sysdep.c doesn't encapsulate read, so the call to
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291 read inside of sys_read will do the right thing.
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292
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293 DONT_ENCAPSULATE is used in files such as sysdep.c that want to
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294 call the actual system calls rather than the encapsulated versions.
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295 Those files can call sys_read to get the (possibly) encapsulated
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296 versions.
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297
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298 IMPORTANT: the redefinition of the system call must occur *after* the
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299 inclusion of any header files that declare or define the system call;
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300 otherwise lots of unfriendly things can happen. This goes for all
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301 encapsulated system calls.
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302
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303 We encapsulate the most common system calls here; we assume their
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304 declarations are in one of the standard header files included above.
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305 Other encapsulations are declared in the appropriate sys*.h file. */
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306
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307 #ifdef ENCAPSULATE_READ
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308 ssize_t sys_read (int, void *, size_t);
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309 #endif
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310 #if defined (ENCAPSULATE_READ) && !defined (DONT_ENCAPSULATE)
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311 # undef read
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312 # define read sys_read
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313 #endif
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314 #if !defined (ENCAPSULATE_READ) && defined (DONT_ENCAPSULATE)
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315 # define sys_read read
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316 #endif
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317
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318 #ifdef ENCAPSULATE_WRITE
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442
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319 ssize_t sys_write (int, const void *, size_t);
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428
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320 #endif
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321 #if defined (ENCAPSULATE_WRITE) && !defined (DONT_ENCAPSULATE)
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322 # undef write
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323 # define write sys_write
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324 #endif
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325 #if !defined (ENCAPSULATE_WRITE) && defined (DONT_ENCAPSULATE)
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326 # define sys_write write
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327 #endif
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328
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329 #ifdef ENCAPSULATE_OPEN
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442
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330 int sys_open (const char *, int, ...);
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428
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331 #endif
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332 #if defined (ENCAPSULATE_OPEN) && !defined (DONT_ENCAPSULATE)
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333 # undef open
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334 # define open sys_open
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335 #endif
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336 #if !defined (ENCAPSULATE_OPEN) && defined (DONT_ENCAPSULATE)
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337 # define sys_open open
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338 #endif
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339
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340 #ifdef ENCAPSULATE_CLOSE
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341 int sys_close (int);
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342 #endif
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343 #if defined (ENCAPSULATE_CLOSE) && !defined (DONT_ENCAPSULATE)
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344 # undef close
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345 # define close sys_close
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346 #endif
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347 #if !defined (ENCAPSULATE_CLOSE) && defined (DONT_ENCAPSULATE)
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348 # define sys_close close
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349 #endif
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350
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351 /* Now the stdio versions ... */
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352
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353 #ifdef ENCAPSULATE_FREAD
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354 size_t sys_fread (void *, size_t, size_t, FILE *);
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355 #endif
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356 #if defined (ENCAPSULATE_FREAD) && !defined (DONT_ENCAPSULATE)
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357 # undef fread
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358 # define fread sys_fread
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359 #endif
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360 #if !defined (ENCAPSULATE_FREAD) && defined (DONT_ENCAPSULATE)
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361 # define sys_fread fread
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362 #endif
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363
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364 #ifdef ENCAPSULATE_FWRITE
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442
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365 size_t sys_fwrite (const void *, size_t, size_t, FILE *);
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428
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366 #endif
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367 #if defined (ENCAPSULATE_FWRITE) && !defined (DONT_ENCAPSULATE)
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368 # undef fwrite
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369 # define fwrite sys_fwrite
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370 #endif
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371 #if !defined (ENCAPSULATE_FWRITE) && defined (DONT_ENCAPSULATE)
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372 # define sys_fwrite fwrite
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373 #endif
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374
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375 #ifdef ENCAPSULATE_FOPEN
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442
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376 FILE *sys_fopen (const char *, const char *);
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428
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377 #endif
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378 #if defined (ENCAPSULATE_FOPEN) && !defined (DONT_ENCAPSULATE)
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379 # undef fopen
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380 # define fopen sys_fopen
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381 #endif
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382 #if !defined (ENCAPSULATE_FOPEN) && defined (DONT_ENCAPSULATE)
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383 # define sys_fopen fopen
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384 #endif
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385
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386 #ifdef ENCAPSULATE_FCLOSE
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387 int sys_fclose (FILE *);
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388 #endif
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389 #if defined (ENCAPSULATE_FCLOSE) && !defined (DONT_ENCAPSULATE)
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390 # undef fclose
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391 # define fclose sys_fclose
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392 #endif
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393 #if !defined (ENCAPSULATE_FCLOSE) && defined (DONT_ENCAPSULATE)
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394 # define sys_fclose fclose
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395 #endif
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396
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397
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398 /* encapsulations: file-information calls */
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399
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400 #ifdef ENCAPSULATE_ACCESS
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442
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401 int sys_access (const char *path, int mode);
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428
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402 #endif
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403 #if defined (ENCAPSULATE_ACCESS) && !defined (DONT_ENCAPSULATE)
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404 # undef access
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405 # define access sys_access
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406 #endif
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407 #if !defined (ENCAPSULATE_ACCESS) && defined (DONT_ENCAPSULATE)
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408 # define sys_access access
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409 #endif
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410
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411 #ifdef ENCAPSULATE_EACCESS
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442
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412 int sys_eaccess (const char *path, int mode);
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428
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413 #endif
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414 #if defined (ENCAPSULATE_EACCESS) && !defined (DONT_ENCAPSULATE)
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415 # undef eaccess
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416 # define eaccess sys_eaccess
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417 #endif
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418 #if !defined (ENCAPSULATE_EACCESS) && defined (DONT_ENCAPSULATE)
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419 # define sys_eaccess eaccess
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420 #endif
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421
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422 #ifdef ENCAPSULATE_LSTAT
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442
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423 int sys_lstat (const char *path, struct stat *buf);
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428
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424 #endif
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425 #if defined (ENCAPSULATE_LSTAT) && !defined (DONT_ENCAPSULATE)
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426 # undef lstat
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427 # define lstat sys_lstat
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428 #endif
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429 #if !defined (ENCAPSULATE_LSTAT) && defined (DONT_ENCAPSULATE)
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430 # define sys_lstat lstat
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431 #endif
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432
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433 #ifdef ENCAPSULATE_READLINK
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442
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434 int sys_readlink (const char *path, char *buf, size_t bufsiz);
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428
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435 #endif
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436 #if defined (ENCAPSULATE_READLINK) && !defined (DONT_ENCAPSULATE)
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437 # undef readlink
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438 # define readlink sys_readlink
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439 #endif
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440 #if !defined (ENCAPSULATE_READLINK) && defined (DONT_ENCAPSULATE)
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441 # define sys_readlink readlink
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442 #endif
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443
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432
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444 #ifdef ENCAPSULATE_FSTAT
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445 int sys_fstat (int fd, struct stat *buf);
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446 #endif
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447 #if defined (ENCAPSULATE_FSTAT) && !defined (DONT_ENCAPSULATE)
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448 # undef fstat
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442
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449 # define fstat sys_fstat
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432
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450 #endif
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451 #if !defined (ENCAPSULATE_FSTAT) && defined (DONT_ENCAPSULATE)
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452 # define sys_fstat fstat
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453 #endif
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454
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442
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455 int xemacs_stat (const char *path, struct stat *buf);
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428
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456
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457 /* encapsulations: file-manipulation calls */
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458
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459 #ifdef ENCAPSULATE_CHMOD
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442
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460 int sys_chmod (const char *path, mode_t mode);
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428
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461 #endif
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462 #if defined (ENCAPSULATE_CHMOD) && !defined (DONT_ENCAPSULATE)
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463 # undef chmod
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464 # define chmod sys_chmod
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465 #endif
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466 #if !defined (ENCAPSULATE_CHMOD) && defined (DONT_ENCAPSULATE)
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467 # define sys_chmod chmod
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|
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468 #endif
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469
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470 #ifdef ENCAPSULATE_CREAT
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442
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471 int sys_creat (const char *path, mode_t mode);
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428
|
472 #endif
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473 #if defined (ENCAPSULATE_CREAT) && !defined (DONT_ENCAPSULATE)
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474 # undef creat
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|
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475 # define creat sys_creat
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476 #endif
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477 #if !defined (ENCAPSULATE_CREAT) && defined (DONT_ENCAPSULATE)
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|
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478 # define sys_creat creat
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|
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479 #endif
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480
|
|
|
481 #ifdef ENCAPSULATE_LINK
|
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442
|
482 int sys_link (const char *existing, const char *new);
|
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428
|
483 #endif
|
|
|
484 #if defined (ENCAPSULATE_LINK) && !defined (DONT_ENCAPSULATE)
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|
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485 # undef link
|
|
|
486 # define link sys_link
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|
|
487 #endif
|
|
|
488 #if !defined (ENCAPSULATE_LINK) && defined (DONT_ENCAPSULATE)
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|
|
489 # define sys_link link
|
|
|
490 #endif
|
|
|
491
|
|
|
492 #ifdef ENCAPSULATE_RENAME
|
|
442
|
493 int sys_rename (const char *old, const char *new);
|
|
428
|
494 #endif
|
|
|
495 #if defined (ENCAPSULATE_RENAME) && !defined (DONT_ENCAPSULATE)
|
|
|
496 # undef rename
|
|
|
497 # define rename sys_rename
|
|
|
498 #endif
|
|
|
499 #if !defined (ENCAPSULATE_RENAME) && defined (DONT_ENCAPSULATE)
|
|
|
500 # define sys_rename rename
|
|
|
501 #endif
|
|
|
502
|
|
|
503 #ifdef ENCAPSULATE_SYMLINK
|
|
442
|
504 int sys_symlink (const char *name1, const char *name2);
|
|
428
|
505 #endif
|
|
|
506 #if defined (ENCAPSULATE_SYMLINK) && !defined (DONT_ENCAPSULATE)
|
|
|
507 # undef symlink
|
|
|
508 # define symlink sys_symlink
|
|
|
509 #endif
|
|
|
510 #if !defined (ENCAPSULATE_SYMLINK) && defined (DONT_ENCAPSULATE)
|
|
|
511 # define sys_symlink symlink
|
|
|
512 #endif
|
|
|
513
|
|
|
514 #ifdef ENCAPSULATE_UNLINK
|
|
442
|
515 int sys_unlink (const char *path);
|
|
428
|
516 #endif
|
|
|
517 #if defined (ENCAPSULATE_UNLINK) && !defined (DONT_ENCAPSULATE)
|
|
|
518 # undef unlink
|
|
|
519 # define unlink sys_unlink
|
|
|
520 #endif
|
|
|
521 #if !defined (ENCAPSULATE_UNLINK) && defined (DONT_ENCAPSULATE)
|
|
|
522 # define sys_unlink unlink
|
|
|
523 #endif
|
|
|
524
|
|
|
525 #ifdef ENCAPSULATE_EXECVP
|
|
442
|
526 int sys_execvp (const char *, char * const *);
|
|
428
|
527 #endif
|
|
|
528 #if defined (ENCAPSULATE_EXECVP) && !defined (DONT_ENCAPSULATE)
|
|
|
529 # undef execvp
|
|
|
530 # define execvp sys_execvp
|
|
|
531 #endif
|
|
|
532 #if !defined (ENCAPSULATE_EXECVP) && defined (DONT_ENCAPSULATE)
|
|
|
533 # define sys_execvp execvp
|
|
|
534 #endif
|
|
440
|
535
|
|
|
536 #endif /* INCLUDED_sysfile_h_ */
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