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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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23 #include <errno.h>
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24 #include <sys/errno.h> /* <errno.h> does not always imply this */
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25 /* Load sys/types.h if not already loaded.
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26 In some systems loading it twice is suicidal. */
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27 #ifndef makedev
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28 #include <sys/types.h> /* some typedefs are used in sys/file.h */
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29 #endif
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30 #include <sys/file.h>
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31 #include <sys/stat.h>
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32 #include <sys/param.h>
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33
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34 #if NeXT
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35 /* what is needed from here? Do others need it too? */
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36 # include <sys/fcntl.h>
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37 #endif /* NeXT */
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38
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39 #ifdef VMS
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40 #ifndef __GNUC__
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41 #include <file.h>
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42 #endif
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43 #include <rms.h>
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44 #include <rmsdef.h>
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45 #include <fab.h>
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46 #include <nam.h>
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47 #include <perror.h>
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48 #include <stddef.h>
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49 #endif
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50
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51 #ifdef WINDOWSNT
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52 #define NOMINMAX
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53 #include <windows.h>
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54 #include <stdlib.h> /* for proper declaration of environ */
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55 #include <fcntl.h>
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56 #include "nt.h"
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57 #define _P_NOWAIT 1 /* from process.h */
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58 #endif
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59
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60 #ifdef MSDOS
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61 #include <dos.h>
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62 #include "msdos.h"
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63 #endif /* MSDOS */
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64
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65 #ifndef O_RDONLY
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66 #define O_RDONLY 0
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67 #endif
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68
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69 #ifndef O_WRONLY
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70 #define O_WRONLY 1
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71 #endif
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72
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73 #ifndef O_RDWR
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74 #define O_RDWR 2
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75 #endif
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76
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77 /* if system does not have symbolic links, it does not have lstat.
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78 In that case, use ordinary stat instead. */
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79
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80 #ifndef S_IFLNK
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81 #define lstat stat
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82 #endif
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83
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84 #if !S_IRUSR
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85 # if S_IREAD
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86 # define S_IRUSR S_IREAD
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87 # else
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88 # define S_IRUSR 00400
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89 # endif
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90 #endif
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91
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92 #if !S_IWUSR
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93 # if S_IWRITE
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94 # define S_IWUSR S_IWRITE
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95 # else
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96 # define S_IWUSR 00200
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97 # endif
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98 #endif
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99
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100 #if !S_IXUSR
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101 # if S_IEXEC
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102 # define S_IXUSR S_IEXEC
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103 # else
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104 # define S_IXUSR 00100
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105 # endif
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106 #endif
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107
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108 #ifdef STAT_MACROS_BROKEN
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109 #undef S_ISBLK
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110 #undef S_ISCHR
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111 #undef S_ISDIR
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112 #undef S_ISFIFO
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113 #undef S_ISLNK
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114 #undef S_ISMPB
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115 #undef S_ISMPC
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116 #undef S_ISNWK
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117 #undef S_ISREG
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118 #undef S_ISSOCK
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119 #endif /* STAT_MACROS_BROKEN. */
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120
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121 #if !defined(S_ISBLK) && defined(S_IFBLK)
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122 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
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123 #endif
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124 #if !defined(S_ISCHR) && defined(S_IFCHR)
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125 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
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126 #endif
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127 #if !defined(S_ISDIR) && defined(S_IFDIR)
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128 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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129 #endif
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130 #if !defined(S_ISREG) && defined(S_IFREG)
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131 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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132 #endif
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133 #if !defined(S_ISFIFO) && defined(S_IFIFO)
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134 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
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135 #endif
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136 #if !defined(S_ISLNK) && defined(S_IFLNK)
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137 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
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138 #endif
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139 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
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140 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
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141 #endif
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142 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
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143 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
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144 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
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145 #endif
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146 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
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147 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
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148 #endif
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149
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150 #if !defined (USG) && !defined (VMS) && !defined (WINDOWSNT)
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151 # define HAVE_FSYNC
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152 #endif
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153
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154 #ifndef MAXPATHLEN
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155 /* in 4.1, param.h fails to define this. */
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156 #define MAXPATHLEN 1024
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157 #endif /* not MAXPATHLEN */
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158
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159 #ifndef X_OK
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160 # define X_OK 01
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161 #endif
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162
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163 #ifndef FD_CLOEXEC
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164 # define FD_CLOEXEC 1
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165 #endif
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166
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167 /* encapsulations: file-information calls */
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168
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169 #ifdef ENCAPSULATE_ACCESS
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170 extern int sys_access (CONST char *path, int mode);
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171 #endif
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172 #if defined (ENCAPSULATE_ACCESS) && !defined (DONT_ENCAPSULATE)
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173 # undef access
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174 # define access sys_access
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175 #endif
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176 #if !defined (ENCAPSULATE_ACCESS) && defined (DONT_ENCAPSULATE)
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177 # define sys_access access
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178 #endif
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179
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180 #ifdef ENCAPSULATE_LSTAT
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181 extern int sys_lstat (CONST char *path, struct stat *buf);
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182 #endif
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183 #if defined (ENCAPSULATE_LSTAT) && !defined (DONT_ENCAPSULATE)
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184 # undef lstat
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185 # define lstat sys_lstat
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186 #endif
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187 #if !defined (ENCAPSULATE_LSTAT) && defined (DONT_ENCAPSULATE)
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188 # define sys_lstat lstat
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189 #endif
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190
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191 #ifdef ENCAPSULATE_READLINK
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192 extern int sys_readlink (CONST char *path, char *buf, int bufsiz);
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193 #endif
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194 #if defined (ENCAPSULATE_READLINK) && !defined (DONT_ENCAPSULATE)
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195 # undef readlink
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196 # define readlink sys_readlink
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197 #endif
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198 #if !defined (ENCAPSULATE_READLINK) && defined (DONT_ENCAPSULATE)
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199 # define sys_readlink readlink
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200 #endif
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201
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202 #ifdef ENCAPSULATE_STAT
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203 extern int sys_stat (CONST char *path, struct stat *buf);
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204 #endif
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205 #if defined (ENCAPSULATE_STAT) && !defined (DONT_ENCAPSULATE)
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206 # undef stat
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207 /* Need to use arguments to avoid messing with struct stat */
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208 # define stat(path, buf) sys_stat (path, buf)
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209 #endif
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210 #if !defined (ENCAPSULATE_STAT) && defined (DONT_ENCAPSULATE)
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211 # define sys_stat stat
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212 #endif
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213
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214 /* encapsulations: file-manipulation calls */
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215
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216 #ifdef ENCAPSULATE_CHMOD
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217 extern int sys_chmod (CONST char *path, int mode);
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218 #endif
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219 #if defined (ENCAPSULATE_CHMOD) && !defined (DONT_ENCAPSULATE)
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220 # undef chmod
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221 # define chmod sys_chmod
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222 #endif
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223 #if !defined (ENCAPSULATE_CHMOD) && defined (DONT_ENCAPSULATE)
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224 # define sys_chmod chmod
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225 #endif
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226
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227 #ifdef ENCAPSULATE_CREAT
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228 extern int sys_creat (CONST char *path, int mode);
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229 #endif
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230 #if defined (ENCAPSULATE_CREAT) && !defined (DONT_ENCAPSULATE)
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231 # undef creat
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232 # define creat sys_creat
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233 #endif
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234 #if !defined (ENCAPSULATE_CREAT) && defined (DONT_ENCAPSULATE)
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235 # define sys_creat creat
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236 #endif
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237
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238 #ifdef ENCAPSULATE_LINK
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239 extern int sys_link (CONST char *existing, CONST char *new);
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240 #endif
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241 #if defined (ENCAPSULATE_LINK) && !defined (DONT_ENCAPSULATE)
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242 # undef link
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243 # define link sys_link
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244 #endif
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245 #if !defined (ENCAPSULATE_LINK) && defined (DONT_ENCAPSULATE)
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246 # define sys_link link
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247 #endif
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248
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249 #ifdef ENCAPSULATE_RENAME
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250 extern int sys_rename (CONST char *old, CONST char *new);
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251 #endif
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252 #if defined (ENCAPSULATE_RENAME) && !defined (DONT_ENCAPSULATE)
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253 # undef rename
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254 # define rename sys_rename
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255 #endif
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256 #if !defined (ENCAPSULATE_RENAME) && defined (DONT_ENCAPSULATE)
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257 # define sys_rename rename
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258 #endif
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259
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260 #ifdef ENCAPSULATE_SYMLINK
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261 extern int sys_symlink (CONST char *name1, CONST char *name2);
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262 #endif
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263 #if defined (ENCAPSULATE_SYMLINK) && !defined (DONT_ENCAPSULATE)
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264 # undef symlink
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265 # define symlink sys_symlink
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266 #endif
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267 #if !defined (ENCAPSULATE_SYMLINK) && defined (DONT_ENCAPSULATE)
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268 # define sys_symlink symlink
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269 #endif
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270
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271 #ifdef ENCAPSULATE_UNLINK
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272 extern int sys_unlink (CONST char *path);
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273 #endif
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274 #if defined (ENCAPSULATE_UNLINK) && !defined (DONT_ENCAPSULATE)
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275 # undef unlink
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276 # define unlink sys_unlink
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277 #endif
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278 #if !defined (ENCAPSULATE_UNLINK) && defined (DONT_ENCAPSULATE)
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279 # define sys_unlink unlink
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280 #endif
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