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0
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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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398
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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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0
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26 #include <errno.h>
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404
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27 #include <limits.h>
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100
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28
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29 #ifndef WINDOWSNT
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0
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30 #include <sys/errno.h> /* <errno.h> does not always imply this */
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100
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31 #endif
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32
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272
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33 #ifdef HAVE_UNISTD_H
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34 #include <unistd.h>
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35 #endif
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36
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37 #ifndef INCLUDED_FCNTL
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38 # define INCLUDED_FCNTL
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39 # include <fcntl.h>
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40 #endif /* INCLUDED_FCNTL */
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41
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0
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42 /* Load sys/types.h if not already loaded.
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43 In some systems loading it twice is suicidal. */
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44 #ifndef makedev
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45 #include <sys/types.h> /* some typedefs are used in sys/file.h */
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46 #endif
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47 #include <sys/file.h>
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48 #include <sys/stat.h>
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49 #include <sys/param.h>
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50
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251
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51 #if defined (NeXT) || defined(__CYGWIN32__)
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272
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52 /* what is needed from here? Do others need it too?
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251
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53 O_BINARY is in here under cygwin. */
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0
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54 # include <sys/fcntl.h>
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55 #endif /* NeXT */
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56
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57 #ifdef WINDOWSNT
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100
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58 #include <io.h>
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288
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59 #include <direct.h>
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100
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60 #endif
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61
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380
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62 #ifndef STDERR_FILENO
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63 #define STDIN_FILENO 0
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64 #define STDOUT_FILENO 1
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65 #define STDERR_FILENO 2
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66 #endif
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67
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0
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68 #ifndef O_RDONLY
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69 #define O_RDONLY 0
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70 #endif
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71
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72 #ifndef O_WRONLY
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73 #define O_WRONLY 1
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74 #endif
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75
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76 #ifndef O_RDWR
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77 #define O_RDWR 2
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78 #endif
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79
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251
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80 /* file opening defaults */
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81 #ifndef OPEN_BINARY
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82 #ifdef O_BINARY
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83 #define OPEN_BINARY O_BINARY
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84 #else
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85 #define OPEN_BINARY (0)
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86 #endif
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87 #endif
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88
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89 #ifndef OPEN_TEXT
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90 #ifdef O_TEXT
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91 #define OPEN_TEXT O_TEXT
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92 #else
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93 #define OPEN_TEXT (0)
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94 #endif
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95 #endif
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96
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97 #ifndef CREAT_MODE
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98 #ifdef WINDOWSNT
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99 #define CREAT_MODE (S_IREAD | S_IWRITE)
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100 #else
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101 #define CREAT_MODE (0666)
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102 #endif
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103 #endif
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104
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105 #ifndef READ_TEXT
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106 #ifdef O_TEXT
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107 #define READ_TEXT "rt"
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108 #else
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109 #define READ_TEXT "r"
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110 #endif
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111 #endif
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112
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113 #ifndef READ_BINARY
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114 #ifdef O_BINARY
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115 #define READ_BINARY "rb"
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116 #else
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117 #define READ_BINARY "r"
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118 #endif
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119 #endif
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120
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121 #ifndef WRITE_BINARY
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122 #ifdef O_BINARY
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123 #define WRITE_BINARY "wb"
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124 #else
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125 #define WRITE_BINARY "w"
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126 #endif
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127 #endif
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128
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380
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129 #ifndef O_NONBLOCK
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130 #ifdef O_NDELAY
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131 #define O_NONBLOCK O_NDELAY
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132 #else
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133 #define O_NONBLOCK 04000
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134 #endif
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135 #endif
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136
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0
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137 /* if system does not have symbolic links, it does not have lstat.
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138 In that case, use ordinary stat instead. */
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139
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140 #ifndef S_IFLNK
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141 #define lstat stat
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142 #endif
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143
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144 #if !S_IRUSR
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145 # if S_IREAD
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146 # define S_IRUSR S_IREAD
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147 # else
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148 # define S_IRUSR 00400
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149 # endif
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150 #endif
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151
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152 #if !S_IWUSR
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153 # if S_IWRITE
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154 # define S_IWUSR S_IWRITE
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155 # else
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156 # define S_IWUSR 00200
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157 # endif
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158 #endif
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159
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160 #if !S_IXUSR
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161 # if S_IEXEC
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162 # define S_IXUSR S_IEXEC
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163 # else
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164 # define S_IXUSR 00100
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165 # endif
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166 #endif
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167
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168 #ifdef STAT_MACROS_BROKEN
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169 #undef S_ISBLK
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170 #undef S_ISCHR
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171 #undef S_ISDIR
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172 #undef S_ISFIFO
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173 #undef S_ISLNK
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174 #undef S_ISMPB
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175 #undef S_ISMPC
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176 #undef S_ISNWK
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177 #undef S_ISREG
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178 #undef S_ISSOCK
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179 #endif /* STAT_MACROS_BROKEN. */
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180
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181 #if !defined(S_ISBLK) && defined(S_IFBLK)
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182 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
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183 #endif
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184 #if !defined(S_ISCHR) && defined(S_IFCHR)
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185 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
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186 #endif
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187 #if !defined(S_ISDIR) && defined(S_IFDIR)
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188 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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189 #endif
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190 #if !defined(S_ISREG) && defined(S_IFREG)
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191 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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192 #endif
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193 #if !defined(S_ISFIFO) && defined(S_IFIFO)
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194 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
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195 #endif
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196 #if !defined(S_ISLNK) && defined(S_IFLNK)
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197 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
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198 #endif
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199 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
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200 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
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201 #endif
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202 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
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203 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
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204 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
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205 #endif
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206 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
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207 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
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208 #endif
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209
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404
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210 /* Client .c files should simply use `PATH_MAX'. */
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211 #ifndef PATH_MAX
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212 # if defined (_POSIX_PATH_MAX)
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213 # define PATH_MAX _POSIX_PATH_MAX
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214 # elif defined (MAXPATHLEN)
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215 # define PATH_MAX MAXPATHLEN
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216 # else
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217 # define PATH_MAX 1024
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218 # endif
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219 #endif
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220
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221 /* MAXPATHLEN is deprecated, but, as of this writing, still used. */
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0
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222 #ifndef MAXPATHLEN
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404
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223 # define MAXPATHLEN 1024
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224 #endif
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0
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225
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226 #ifndef X_OK
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227 # define X_OK 01
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228 #endif
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229
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230 #ifndef FD_CLOEXEC
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231 # define FD_CLOEXEC 1
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232 #endif
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233
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272
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234 /* Emacs needs to use its own definitions of certain system calls on
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235 some systems (like SunOS 4.1 and USG systems, where the read system
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236 call is interruptible but Emacs expects it not to be; and under
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237 MULE, where all filenames need to be converted to external format).
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238 To do this, we #define read to be sys_read, which is defined in
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239 sysdep.c. We first #undef read, in case some system file defines
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240 read as a macro. sysdep.c doesn't encapsulate read, so the call to
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241 read inside of sys_read will do the right thing.
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242
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243 DONT_ENCAPSULATE is used in files such as sysdep.c that want to
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244 call the actual system calls rather than the encapsulated versions.
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245 Those files can call sys_read to get the (possibly) encapsulated
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246 versions.
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247
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248 IMPORTANT: the redefinition of the system call must occur *after* the
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249 inclusion of any header files that declare or define the system call;
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250 otherwise lots of unfriendly things can happen. This goes for all
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251 encapsulated system calls.
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252
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253 We encapsulate the most common system calls here; we assume their
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254 declarations are in one of the standard header files included above.
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255 Other encapsulations are declared in the appropriate sys*.h file. */
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256
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257 #ifdef ENCAPSULATE_READ
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398
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258 ssize_t sys_read (int, void *, size_t);
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272
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259 #endif
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260 #if defined (ENCAPSULATE_READ) && !defined (DONT_ENCAPSULATE)
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261 # undef read
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262 # define read sys_read
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263 #endif
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264 #if !defined (ENCAPSULATE_READ) && defined (DONT_ENCAPSULATE)
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265 # define sys_read read
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266 #endif
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267
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268 #ifdef ENCAPSULATE_WRITE
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398
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269 ssize_t sys_write (int, const void *, size_t);
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272
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270 #endif
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271 #if defined (ENCAPSULATE_WRITE) && !defined (DONT_ENCAPSULATE)
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272 # undef write
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273 # define write sys_write
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274 #endif
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275 #if !defined (ENCAPSULATE_WRITE) && defined (DONT_ENCAPSULATE)
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276 # define sys_write write
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277 #endif
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278
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279 #ifdef ENCAPSULATE_OPEN
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398
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280 int sys_open (const char *, int, ...);
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272
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281 #endif
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282 #if defined (ENCAPSULATE_OPEN) && !defined (DONT_ENCAPSULATE)
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283 # undef open
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284 # define open sys_open
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285 #endif
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286 #if !defined (ENCAPSULATE_OPEN) && defined (DONT_ENCAPSULATE)
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287 # define sys_open open
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288 #endif
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289
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290 #ifdef ENCAPSULATE_CLOSE
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291 int sys_close (int);
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292 #endif
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293 #if defined (ENCAPSULATE_CLOSE) && !defined (DONT_ENCAPSULATE)
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294 # undef close
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295 # define close sys_close
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296 #endif
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297 #if !defined (ENCAPSULATE_CLOSE) && defined (DONT_ENCAPSULATE)
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298 # define sys_close close
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299 #endif
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300
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301 /* Now the stdio versions ... */
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302
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303 #ifdef ENCAPSULATE_FREAD
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304 size_t sys_fread (void *, size_t, size_t, FILE *);
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305 #endif
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306 #if defined (ENCAPSULATE_FREAD) && !defined (DONT_ENCAPSULATE)
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307 # undef fread
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308 # define fread sys_fread
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309 #endif
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310 #if !defined (ENCAPSULATE_FREAD) && defined (DONT_ENCAPSULATE)
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311 # define sys_fread fread
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312 #endif
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313
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314 #ifdef ENCAPSULATE_FWRITE
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398
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315 size_t sys_fwrite (const void *, size_t, size_t, FILE *);
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272
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316 #endif
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317 #if defined (ENCAPSULATE_FWRITE) && !defined (DONT_ENCAPSULATE)
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318 # undef fwrite
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319 # define fwrite sys_fwrite
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320 #endif
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321 #if !defined (ENCAPSULATE_FWRITE) && defined (DONT_ENCAPSULATE)
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322 # define sys_fwrite fwrite
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323 #endif
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324
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325 #ifdef ENCAPSULATE_FOPEN
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398
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326 FILE *sys_fopen (const char *, const char *);
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272
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327 #endif
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328 #if defined (ENCAPSULATE_FOPEN) && !defined (DONT_ENCAPSULATE)
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329 # undef fopen
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330 # define fopen sys_fopen
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331 #endif
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332 #if !defined (ENCAPSULATE_FOPEN) && defined (DONT_ENCAPSULATE)
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333 # define sys_fopen fopen
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334 #endif
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335
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336 #ifdef ENCAPSULATE_FCLOSE
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337 int sys_fclose (FILE *);
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338 #endif
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339 #if defined (ENCAPSULATE_FCLOSE) && !defined (DONT_ENCAPSULATE)
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340 # undef fclose
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341 # define fclose sys_fclose
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342 #endif
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343 #if !defined (ENCAPSULATE_FCLOSE) && defined (DONT_ENCAPSULATE)
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344 # define sys_fclose fclose
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345 #endif
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346
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347
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0
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348 /* encapsulations: file-information calls */
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349
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350 #ifdef ENCAPSULATE_ACCESS
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398
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351 int sys_access (const char *path, int mode);
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0
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352 #endif
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353 #if defined (ENCAPSULATE_ACCESS) && !defined (DONT_ENCAPSULATE)
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354 # undef access
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355 # define access sys_access
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356 #endif
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357 #if !defined (ENCAPSULATE_ACCESS) && defined (DONT_ENCAPSULATE)
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358 # define sys_access access
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359 #endif
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360
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2
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361 #ifdef ENCAPSULATE_EACCESS
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398
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362 int sys_eaccess (const char *path, int mode);
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2
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363 #endif
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364 #if defined (ENCAPSULATE_EACCESS) && !defined (DONT_ENCAPSULATE)
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365 # undef eaccess
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366 # define eaccess sys_eaccess
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367 #endif
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368 #if !defined (ENCAPSULATE_EACCESS) && defined (DONT_ENCAPSULATE)
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369 # define sys_eaccess eaccess
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370 #endif
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371
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0
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372 #ifdef ENCAPSULATE_LSTAT
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398
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373 int sys_lstat (const char *path, struct stat *buf);
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0
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374 #endif
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375 #if defined (ENCAPSULATE_LSTAT) && !defined (DONT_ENCAPSULATE)
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376 # undef lstat
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377 # define lstat sys_lstat
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378 #endif
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379 #if !defined (ENCAPSULATE_LSTAT) && defined (DONT_ENCAPSULATE)
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380 # define sys_lstat lstat
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381 #endif
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382
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383 #ifdef ENCAPSULATE_READLINK
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398
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384 int sys_readlink (const char *path, char *buf, size_t bufsiz);
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0
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385 #endif
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386 #if defined (ENCAPSULATE_READLINK) && !defined (DONT_ENCAPSULATE)
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387 # undef readlink
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388 # define readlink sys_readlink
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389 #endif
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390 #if !defined (ENCAPSULATE_READLINK) && defined (DONT_ENCAPSULATE)
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391 # define sys_readlink readlink
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392 #endif
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393
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398
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394 #ifdef ENCAPSULATE_FSTAT
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395 int sys_fstat (int fd, struct stat *buf);
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396 #endif
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397 #if defined (ENCAPSULATE_FSTAT) && !defined (DONT_ENCAPSULATE)
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398 # undef fstat
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399 /* Need to use arguments to avoid messing with struct stat */
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400 # define fstat(fd, buf) sys_fstat (fd, buf)
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401 #endif
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402 #if !defined (ENCAPSULATE_FSTAT) && defined (DONT_ENCAPSULATE)
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403 # define sys_fstat fstat
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404 #endif
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405
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0
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406 #ifdef ENCAPSULATE_STAT
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398
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407 int sys_stat (const char *path, struct stat *buf);
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0
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408 #endif
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409 #if defined (ENCAPSULATE_STAT) && !defined (DONT_ENCAPSULATE)
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410 # undef stat
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411 /* Need to use arguments to avoid messing with struct stat */
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412 # define stat(path, buf) sys_stat (path, buf)
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413 #endif
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414 #if !defined (ENCAPSULATE_STAT) && defined (DONT_ENCAPSULATE)
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415 # define sys_stat stat
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416 #endif
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417
|
|
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418 /* encapsulations: file-manipulation calls */
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419
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420 #ifdef ENCAPSULATE_CHMOD
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398
|
421 int sys_chmod (const char *path, mode_t mode);
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0
|
422 #endif
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|
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423 #if defined (ENCAPSULATE_CHMOD) && !defined (DONT_ENCAPSULATE)
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424 # undef chmod
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|
|
425 # define chmod sys_chmod
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|
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426 #endif
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|
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427 #if !defined (ENCAPSULATE_CHMOD) && defined (DONT_ENCAPSULATE)
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|
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428 # define sys_chmod chmod
|
|
|
429 #endif
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430
|
|
|
431 #ifdef ENCAPSULATE_CREAT
|
|
398
|
432 int sys_creat (const char *path, mode_t mode);
|
|
0
|
433 #endif
|
|
|
434 #if defined (ENCAPSULATE_CREAT) && !defined (DONT_ENCAPSULATE)
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|
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435 # undef creat
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|
|
436 # define creat sys_creat
|
|
|
437 #endif
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438 #if !defined (ENCAPSULATE_CREAT) && defined (DONT_ENCAPSULATE)
|
|
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439 # define sys_creat creat
|
|
|
440 #endif
|
|
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441
|
|
|
442 #ifdef ENCAPSULATE_LINK
|
|
398
|
443 int sys_link (const char *existing, const char *new);
|
|
0
|
444 #endif
|
|
|
445 #if defined (ENCAPSULATE_LINK) && !defined (DONT_ENCAPSULATE)
|
|
|
446 # undef link
|
|
|
447 # define link sys_link
|
|
|
448 #endif
|
|
|
449 #if !defined (ENCAPSULATE_LINK) && defined (DONT_ENCAPSULATE)
|
|
|
450 # define sys_link link
|
|
|
451 #endif
|
|
|
452
|
|
|
453 #ifdef ENCAPSULATE_RENAME
|
|
398
|
454 int sys_rename (const char *old, const char *new);
|
|
0
|
455 #endif
|
|
|
456 #if defined (ENCAPSULATE_RENAME) && !defined (DONT_ENCAPSULATE)
|
|
|
457 # undef rename
|
|
|
458 # define rename sys_rename
|
|
|
459 #endif
|
|
|
460 #if !defined (ENCAPSULATE_RENAME) && defined (DONT_ENCAPSULATE)
|
|
|
461 # define sys_rename rename
|
|
|
462 #endif
|
|
|
463
|
|
|
464 #ifdef ENCAPSULATE_SYMLINK
|
|
398
|
465 int sys_symlink (const char *name1, const char *name2);
|
|
0
|
466 #endif
|
|
|
467 #if defined (ENCAPSULATE_SYMLINK) && !defined (DONT_ENCAPSULATE)
|
|
|
468 # undef symlink
|
|
|
469 # define symlink sys_symlink
|
|
|
470 #endif
|
|
|
471 #if !defined (ENCAPSULATE_SYMLINK) && defined (DONT_ENCAPSULATE)
|
|
|
472 # define sys_symlink symlink
|
|
|
473 #endif
|
|
|
474
|
|
|
475 #ifdef ENCAPSULATE_UNLINK
|
|
398
|
476 int sys_unlink (const char *path);
|
|
0
|
477 #endif
|
|
|
478 #if defined (ENCAPSULATE_UNLINK) && !defined (DONT_ENCAPSULATE)
|
|
|
479 # undef unlink
|
|
|
480 # define unlink sys_unlink
|
|
|
481 #endif
|
|
|
482 #if !defined (ENCAPSULATE_UNLINK) && defined (DONT_ENCAPSULATE)
|
|
|
483 # define sys_unlink unlink
|
|
|
484 #endif
|
|
16
|
485
|
|
|
486 #ifdef ENCAPSULATE_EXECVP
|
|
398
|
487 int sys_execvp (const char *, char * const *);
|
|
16
|
488 #endif
|
|
|
489 #if defined (ENCAPSULATE_EXECVP) && !defined (DONT_ENCAPSULATE)
|
|
|
490 # undef execvp
|
|
|
491 # define execvp sys_execvp
|
|
|
492 #endif
|
|
|
493 #if !defined (ENCAPSULATE_EXECVP) && defined (DONT_ENCAPSULATE)
|
|
|
494 # define sys_execvp execvp
|
|
|
495 #endif
|
|
398
|
496
|
|
|
497 #endif /* INCLUDED_sysfile_h_ */
|
