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| 1 /* | |
| 2 ** 2015 November 30 | |
| 3 ** | |
| 4 ** The author disclaims copyright to this source code. In place of | |
| 5 ** a legal notice, here is a blessing: | |
| 6 ** | |
| 7 ** May you do good and not evil. | |
| 8 ** May you find forgiveness for yourself and forgive others. | |
| 9 ** May you share freely, never taking more than you give. | |
| 10 ** | |
| 11 ************************************************************************* | |
| 12 ** This file contains code to implement most of the opendir() family of | |
| 13 ** POSIX functions on Win32 using the MSVCRT. | |
| 14 */ | |
| 15 | |
| 16 #if defined(_WIN32) && defined(_MSC_VER) | |
| 17 | |
| 18 #include "test_windirent.h" | |
| 19 | |
| 20 /* | |
| 21 ** Implementation of the POSIX opendir() function using the MSVCRT. | |
| 22 */ | |
| 23 LPDIR opendir( | |
| 24 const char *dirname | |
| 25 ){ | |
| 26 struct _finddata_t data; | |
| 27 LPDIR dirp = (LPDIR)sqlite3_malloc(sizeof(DIR)); | |
| 28 SIZE_T namesize = sizeof(data.name) / sizeof(data.name[0]); | |
| 29 | |
| 30 if( dirp==NULL ) return NULL; | |
| 31 memset(dirp, 0, sizeof(DIR)); | |
| 32 | |
| 33 /* TODO: Remove this if Unix-style root paths are not used. */ | |
| 34 if( sqlite3_stricmp(dirname, "/")==0 ){ | |
| 35 dirname = getenv("SystemDrive"); | |
| 36 } | |
| 37 | |
| 38 _snprintf(data.name, namesize, "%s\\*", dirname); | |
| 39 dirp->d_handle = _findfirst(data.name, &data); | |
| 40 | |
| 41 if( dirp->d_handle==BAD_INTPTR_T ){ | |
| 42 closedir(dirp); | |
| 43 return NULL; | |
| 44 } | |
| 45 | |
| 46 /* TODO: Remove this block to allow hidden and system files. */ | |
| 47 if( data.attrib&_A_HIDDEN || data.attrib&_A_SYSTEM ){ | |
| 48 if( _findnext(dirp->d_handle, &data)==-1 ){ | |
| 49 closedir(dirp); | |
| 50 return NULL; | |
| 51 } | |
| 52 } | |
| 53 | |
| 54 dirp->d_first.d_attributes = data.attrib; | |
| 55 strncpy(dirp->d_first.d_name, data.name, NAME_MAX); | |
| 56 dirp->d_first.d_name[NAME_MAX] = '\0'; | |
| 57 | |
| 58 return dirp; | |
| 59 } | |
| 60 | |
| 61 /* | |
| 62 ** Implementation of the POSIX readdir() function using the MSVCRT. | |
| 63 */ | |
| 64 LPDIRENT readdir( | |
| 65 LPDIR dirp | |
| 66 ){ | |
| 67 struct _finddata_t data; | |
| 68 | |
| 69 if( dirp==NULL ) return NULL; | |
| 70 | |
| 71 if( dirp->d_first.d_ino==0 ){ | |
| 72 dirp->d_first.d_ino++; | |
| 73 dirp->d_next.d_ino++; | |
| 74 | |
| 75 return &dirp->d_first; | |
| 76 } | |
| 77 | |
| 78 next: | |
| 79 | |
| 80 if( _findnext(dirp->d_handle, &data)==-1 ) return NULL; | |
| 81 | |
| 82 /* TODO: Remove this block to allow hidden and system files. */ | |
| 83 if( data.attrib&_A_HIDDEN ) goto next; | |
| 84 if( data.attrib&_A_SYSTEM ) goto next; | |
| 85 | |
| 86 dirp->d_next.d_ino++; | |
| 87 dirp->d_next.d_attributes = data.attrib; | |
| 88 strncpy(dirp->d_next.d_name, data.name, NAME_MAX); | |
| 89 dirp->d_next.d_name[NAME_MAX] = '\0'; | |
| 90 | |
| 91 return &dirp->d_next; | |
| 92 } | |
| 93 | |
| 94 /* | |
| 95 ** Implementation of the POSIX readdir_r() function using the MSVCRT. | |
| 96 */ | |
| 97 INT readdir_r( | |
| 98 LPDIR dirp, | |
| 99 LPDIRENT entry, | |
| 100 LPDIRENT *result | |
| 101 ){ | |
| 102 struct _finddata_t data; | |
| 103 | |
| 104 if( dirp==NULL ) return EBADF; | |
| 105 | |
| 106 if( dirp->d_first.d_ino==0 ){ | |
| 107 dirp->d_first.d_ino++; | |
| 108 dirp->d_next.d_ino++; | |
| 109 | |
| 110 entry->d_ino = dirp->d_first.d_ino; | |
| 111 entry->d_attributes = dirp->d_first.d_attributes; | |
| 112 strncpy(entry->d_name, dirp->d_first.d_name, NAME_MAX); | |
| 113 entry->d_name[NAME_MAX] = '\0'; | |
| 114 | |
| 115 *result = entry; | |
| 116 return 0; | |
| 117 } | |
| 118 | |
| 119 next: | |
| 120 | |
| 121 if( _findnext(dirp->d_handle, &data)==-1 ){ | |
| 122 *result = NULL; | |
| 123 return ENOENT; | |
| 124 } | |
| 125 | |
| 126 /* TODO: Remove this block to allow hidden and system files. */ | |
| 127 if( data.attrib&_A_HIDDEN ) goto next; | |
| 128 if( data.attrib&_A_SYSTEM ) goto next; | |
| 129 | |
| 130 entry->d_ino = (ino_t)-1; /* not available */ | |
| 131 entry->d_attributes = data.attrib; | |
| 132 strncpy(entry->d_name, data.name, NAME_MAX); | |
| 133 entry->d_name[NAME_MAX] = '\0'; | |
| 134 | |
| 135 *result = entry; | |
| 136 return 0; | |
| 137 } | |
| 138 | |
| 139 /* | |
| 140 ** Implementation of the POSIX closedir() function using the MSVCRT. | |
| 141 */ | |
| 142 INT closedir( | |
| 143 LPDIR dirp | |
| 144 ){ | |
| 145 INT result = 0; | |
| 146 | |
| 147 if( dirp==NULL ) return EINVAL; | |
| 148 | |
| 149 if( dirp->d_handle!=NULL_INTPTR_T && dirp->d_handle!=BAD_INTPTR_T ){ | |
| 150 result = _findclose(dirp->d_handle); | |
| 151 } | |
| 152 | |
| 153 sqlite3_free(dirp); | |
| 154 return result; | |
| 155 } | |
| 156 | |
| 157 #endif /* defined(WIN32) && defined(_MSC_VER) */ | |
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Chromium Code Reviews
Issue 2846743003:
[sql] Remove SQLite 3.10.2 reference directory. (Closed)
