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701 | serge | 1 | /**************************************************************************** |
2 | * |
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3 | * Open Watcom Project |
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4 | * |
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5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
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6 | * |
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7 | * ======================================================================== |
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8 | * |
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9 | * This file contains Original Code and/or Modifications of Original |
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10 | * Code as defined in and that are subject to the Sybase Open Watcom |
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11 | * Public License version 1.0 (the 'License'). You may not use this file |
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12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
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13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
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14 | * provided with the Original Code and Modifications, and is also |
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15 | * available at www.sybase.com/developer/opensource. |
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16 | * |
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17 | * The Original Code and all software distributed under the License are |
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18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
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19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
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20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
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21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
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22 | * NON-INFRINGEMENT. Please see the License for the specific language |
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23 | * governing rights and limitations under the License. |
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24 | * |
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25 | * ======================================================================== |
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26 | * |
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27 | * Description: Win32 implementation of open() and sopen(). |
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28 | * |
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29 | ****************************************************************************/ |
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30 | |||
31 | |||
32 | #include "variety.h" |
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33 | #include "widechar.h" |
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34 | #include |
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35 | #include |
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36 | #include |
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37 | #include |
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38 | #include |
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39 | #include |
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40 | #include |
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41 | #include |
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42 | #include |
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43 | #include "liballoc.h" |
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44 | #include "iomode.h" |
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45 | #include "fileacc.h" |
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46 | #include "openmode.h" |
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47 | #include "rtdata.h" |
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48 | #include "seterrno.h" |
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711 | serge | 49 | #include "kolibri.h" |
701 | serge | 50 | |
51 | extern unsigned __NFiles; |
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52 | extern char *__appcwd; |
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53 | extern int __appcwdlen; |
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54 | |||
55 | #if (defined(__WINDOWS__) || defined(__NT__)) |
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56 | |||
57 | typedef struct |
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58 | { |
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59 | char *name; |
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60 | unsigned int offset; |
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61 | }__file_handle; |
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62 | |||
63 | |||
64 | char* getfullpath(const char* path) |
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65 | { |
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66 | int prev_is_slash=0; |
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67 | int len=0, depth=0, i; |
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68 | char* buff; |
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69 | char c; |
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70 | |||
71 | if(*path == '/') |
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72 | { |
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73 | buff = (char*)lib_malloc(strlen(path)+1); |
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74 | buff[0] = '\0'; |
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75 | len=0; |
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76 | } |
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77 | else |
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78 | { |
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79 | len= __appcwdlen; |
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80 | buff = (char*)lib_malloc(len+strlen(path)+1); |
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81 | strncpy(buff, __appcwd, __appcwdlen); |
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82 | |||
83 | prev_is_slash = 1; |
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84 | buff[len] = 0; |
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85 | for(i=0; buff[i]; i++) |
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86 | if(buff[i] == '/' && i < len-1) depth++; |
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87 | } |
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88 | |||
89 | while(c=*path++) |
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90 | { |
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91 | switch (c) |
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92 | { |
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93 | |||
94 | case '.': |
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95 | if((*path == '.')&& |
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96 | (*path+1)== '/') |
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97 | { if(!depth) |
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98 | { free(buff); |
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99 | return 0; |
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100 | }; |
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101 | buff[len-1] = 0; |
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102 | len = strrchr(buff, '/') + 1 - buff; |
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103 | buff[len] = 0; |
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104 | depth--; |
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105 | path +=2; |
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106 | prev_is_slash = 1; |
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107 | continue; |
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108 | } |
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109 | if(*path == '/') |
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110 | { |
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111 | path++; |
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112 | prev_is_slash = 1; |
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113 | continue; |
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114 | } |
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115 | buff[len++] = c; |
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116 | continue; |
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117 | |||
118 | case '/': |
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119 | prev_is_slash = 1; |
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120 | buff[len++] = c; |
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121 | continue; |
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122 | |||
123 | default: |
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124 | prev_is_slash = 0; |
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125 | buff[len++] = c; |
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126 | continue; |
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127 | }; |
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128 | }; |
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129 | buff[len]= '\0'; |
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130 | return buff; |
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131 | }; |
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132 | |||
133 | |||
134 | size_t FileSize(FILE *fp) |
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135 | { |
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136 | int hdl; |
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137 | __file_handle *fh; |
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138 | FILEINFO info; |
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139 | |||
140 | hdl = fileno( fp ); |
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141 | // __handle_check( hdl, -1 ); |
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142 | |||
143 | fh = (__file_handle*) __getOSHandle(hdl); |
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144 | |||
145 | |||
146 | get_fileinfo(fh->name,&info); |
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147 | |||
148 | return info.size; |
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149 | |||
150 | } |
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151 | |||
152 | int access(const char *path, int mode) |
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153 | { size_t retval; |
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154 | FILEINFO info; |
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155 | char *p; |
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156 | |||
157 | p = getfullpath(path); |
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158 | retval=get_fileinfo(p,&info); |
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159 | free(p); |
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160 | |||
161 | return retval; |
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162 | |||
163 | } |
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164 | |||
165 | static HANDLE __openFileHandle(const CHAR_TYPE *name, int mode) |
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166 | { |
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167 | FILEINFO info; |
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168 | __file_handle *handle; |
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169 | char *path; |
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170 | int err; |
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171 | |||
172 | path = getfullpath(name); |
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173 | |||
174 | if(err=get_fileinfo(path,&info)) |
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175 | { |
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176 | // printf("failed getfileinfo %s\n\r", path); |
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177 | |||
178 | if(mode & O_CREAT) |
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179 | err=create_file(path); |
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180 | |||
181 | if(err) |
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182 | { |
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183 | lib_free(path); |
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184 | return (HANDLE)-1; |
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185 | }; |
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186 | }; |
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187 | |||
188 | if ( !(handle=(__file_handle*)lib_malloc(sizeof( __file_handle) ))) |
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189 | { lib_free(path); |
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190 | return (HANDLE)-1; |
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191 | }; |
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192 | |||
193 | handle->name = path; |
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194 | handle->offset = 0; |
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195 | |||
196 | return (HANDLE)handle; |
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197 | }; |
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198 | |||
199 | |||
200 | static int __F_NAME(_sopen,__wsopen)( const CHAR_TYPE *name, int mode, int share, va_list args ) |
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201 | { |
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202 | HANDLE handle; |
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203 | int hid, rwmode; |
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204 | unsigned iomode_flags; |
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205 | |||
206 | // First try to get the required slot. |
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207 | // No point in creating a file only to not use it. JBS 99/10/26 |
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208 | hid = __allocPOSIXHandle( DUMMY_HANDLE ); |
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209 | if( hid == -1 ) |
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210 | { |
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211 | return( -1 ); |
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212 | } |
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213 | |||
214 | rwmode = mode; |
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215 | |||
216 | |||
217 | /*** Open the file ***/ |
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218 | |||
219 | handle = __openFileHandle( name, mode); |
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220 | |||
221 | if( handle==(HANDLE)-1 ) |
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222 | { |
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223 | __freePOSIXHandle( hid ); |
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224 | return( -1 ); //error |
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225 | } |
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226 | |||
227 | // Now use the slot we got. |
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228 | __setOSHandle( hid, handle ); // JBS 99/11/01 |
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229 | |||
230 | iomode_flags = 0; |
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231 | |||
232 | |||
233 | if( rwmode == O_RDWR ) iomode_flags |= _READ | _WRITE; |
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234 | else if( rwmode == O_RDONLY) iomode_flags |= _READ; |
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235 | else if( rwmode == O_WRONLY) iomode_flags |= _WRITE; |
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236 | if( mode & O_APPEND ) iomode_flags |= _APPEND; |
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237 | if( mode & (O_BINARY|O_TEXT) ) { |
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238 | if( mode & O_BINARY ) iomode_flags |= _BINARY; |
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239 | } else { |
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240 | if( _RWD_fmode == O_BINARY ) iomode_flags |= _BINARY; |
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241 | } |
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242 | __SetIOMode( hid, iomode_flags ); |
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243 | return( hid ); |
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244 | } |
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245 | |||
246 | #elif |
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247 | static int __F_NAME(_sopen,__wsopen)( const CHAR_TYPE *name, int mode, int share, va_list args ) |
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248 | { |
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249 | DWORD create_disp, exists_disp; |
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250 | DWORD perm, fileattr; |
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251 | DWORD desired_access, share_mode; |
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252 | SECURITY_ATTRIBUTES security; |
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253 | HANDLE handle; |
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254 | int hid, rwmode; |
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255 | unsigned iomode_flags; |
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256 | |||
257 | // First try to get the required slot. |
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258 | // No point in creating a file only to not use it. JBS 99/10/26 |
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259 | hid = __allocPOSIXHandle( DUMMY_HANDLE ); |
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260 | if( hid == -1 ) { |
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261 | return( -1 ); |
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262 | } |
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263 | |||
264 | rwmode = mode & OPENMODE_ACCESS_MASK; |
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265 | __GetNTAccessAttr( rwmode, &desired_access, &perm ); |
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266 | __GetNTShareAttr( share|rwmode, &share_mode ); |
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267 | fileattr = FILE_ATTRIBUTE_NORMAL; |
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268 | |||
269 | security.nLength = sizeof( SECURITY_ATTRIBUTES ); |
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270 | security.lpSecurityDescriptor = NULL; |
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271 | security.bInheritHandle = mode&O_NOINHERIT ? FALSE : TRUE; |
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272 | |||
273 | #ifdef DEFAULT_WINDOWING |
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274 | #ifdef __WIDECHAR__ |
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275 | if( _WindowsNewWindow != 0 && !_wcsicmp( name, L"con" ) ) |
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276 | #else |
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277 | if( _WindowsNewWindow != 0 && !stricmp( name, "con" ) ) |
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278 | #endif |
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279 | { |
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280 | handle = (HANDLE) __NTGetFakeHandle(); |
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281 | |||
282 | // Now use the slot we got. |
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283 | __setOSHandle( hid, handle ); // JBS 99/11/01 |
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284 | _WindowsNewWindow( NULL, hid, -1 ); |
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285 | |||
286 | iomode_flags = _ISTTY; |
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287 | } else { |
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288 | #endif |
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289 | if( mode & O_CREAT ) { |
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290 | perm = va_arg( args, int ); |
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291 | va_end( args ); |
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292 | perm &= ~_RWD_umaskval; /* 05-jan-95 */ |
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293 | if( ( perm & S_IREAD ) && !( perm & S_IWRITE ) ) { |
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294 | fileattr = FILE_ATTRIBUTE_READONLY; |
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295 | } |
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296 | if( mode & O_EXCL ) { |
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297 | create_disp = CREATE_NEW; |
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298 | exists_disp = CREATE_NEW; |
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299 | } else if( mode & O_TRUNC ) { |
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300 | create_disp = CREATE_ALWAYS; |
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301 | exists_disp = CREATE_NEW; |
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302 | } else { |
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303 | create_disp = OPEN_ALWAYS; |
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304 | exists_disp = OPEN_EXISTING; |
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305 | } |
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306 | } else if( mode & O_TRUNC ) { |
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307 | exists_disp = TRUNCATE_EXISTING; |
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308 | } else { |
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309 | exists_disp = OPEN_EXISTING; |
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310 | } |
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311 | |||
312 | /*** Open the file ***/ |
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313 | #ifdef __WIDECHAR__ |
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314 | handle = __lib_CreateFileW( name, desired_access, share_mode, |
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315 | &security, exists_disp, fileattr, |
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316 | NULL ); |
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317 | #else |
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318 | handle = CreateFileA( name, desired_access, share_mode, |
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319 | &security, exists_disp, fileattr, NULL ); |
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320 | #endif |
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321 | if( handle==(HANDLE)-1 ) { |
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322 | if( mode&O_CREAT ) { |
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323 | #ifdef __WIDECHAR__ |
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324 | handle = __lib_CreateFileW( name, desired_access, |
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325 | share_mode, NULL, create_disp, |
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326 | fileattr, NULL ); |
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327 | #else |
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328 | handle = CreateFileA( name, desired_access, |
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329 | share_mode, NULL, create_disp, |
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330 | fileattr, NULL ); |
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331 | #endif |
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332 | } |
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333 | if( handle == (HANDLE)-1 ) { |
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334 | __freePOSIXHandle( hid ); |
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335 | return( __set_errno_nt() ); |
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336 | } |
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337 | } |
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338 | |||
339 | // Now use the slot we got. |
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340 | __setOSHandle( hid, handle ); // JBS 99/11/01 |
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341 | |||
342 | iomode_flags = 0; |
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343 | |||
344 | if( isatty(hid) ) { |
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345 | iomode_flags = _ISTTY; |
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346 | } |
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347 | #ifdef DEFAULT_WINDOWING |
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348 | } |
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349 | #endif |
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350 | |||
351 | if( rwmode == O_RDWR ) iomode_flags |= _READ | _WRITE; |
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352 | else if( rwmode == O_RDONLY) iomode_flags |= _READ; |
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353 | else if( rwmode == O_WRONLY) iomode_flags |= _WRITE; |
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354 | if( mode & O_APPEND ) iomode_flags |= _APPEND; |
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355 | if( mode & (O_BINARY|O_TEXT) ) { |
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356 | if( mode & O_BINARY ) iomode_flags |= _BINARY; |
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357 | } else { |
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358 | if( _RWD_fmode == O_BINARY ) iomode_flags |= _BINARY; |
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359 | } |
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360 | __SetIOMode( hid, iomode_flags ); |
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361 | return( hid ); |
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362 | } |
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363 | #endif |
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364 | |||
365 | _WCRTLINK int __F_NAME(open,_wopen)( const CHAR_TYPE *name, int mode, ... ) |
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366 | { |
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367 | int permission; |
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368 | va_list args; |
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369 | |||
370 | va_start( args, mode ); |
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371 | permission = va_arg( args, int ); |
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372 | va_end( args ); |
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373 | return( __F_NAME(sopen,_wsopen)( name, mode, SH_COMPAT, permission ) ); |
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374 | } |
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375 | |||
376 | |||
377 | _WCRTLINK int __F_NAME(sopen,_wsopen)( const CHAR_TYPE *name, int mode, int shflag, ... ) |
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378 | { |
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379 | va_list args; |
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380 | |||
381 | va_start( args, shflag ); |
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382 | return( __F_NAME(_sopen,__wsopen)( name, mode, shflag, args ) ); |
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383 | }> |