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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */ |
| 2 | /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
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| 3 | #include |
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| 4 | #include |
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| 5 | #include |
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| 6 | #include |
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| 7 | #include |
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| 8 | #include |
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| 9 | #include |
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| 10 | |||
| 11 | int access(const char *fn, int flags) |
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| 12 | { |
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| 13 | unsigned attr = _chmod(fn, 0); |
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| 14 | |||
| 15 | if (attr == -1) { |
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| 16 | char fixed_path[FILENAME_MAX]; |
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| 17 | const char* p; |
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| 18 | int nums = 0; |
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| 19 | DIR* d; |
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| 20 | |||
| 21 | /* Root directories on some non-local drives (e.g. CD-ROM) |
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| 22 | might fail `_chmod'. `findfirst' to the rescue. */ |
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| 23 | _fixpath(fn, fixed_path); |
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| 24 | for (p=fixed_path;*p;p++) if (*p == '/') ++nums; |
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| 25 | if (nums <= 2) |
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| 26 | { |
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| 27 | d = opendir(fn); |
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| 28 | if (d) {closedir(d);return 0;} |
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| 29 | } |
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| 30 | |||
| 31 | errno = ENOENT; |
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| 32 | return -1; |
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| 33 | } |
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| 34 | |||
| 35 | if (attr & 0x10) /* directory? */ |
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| 36 | return 0; /* directories always OK */ |
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| 37 | if (flags & D_OK) |
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| 38 | { |
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| 39 | errno = EACCES; |
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| 40 | return -1; /* not a directory */ |
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| 41 | } |
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| 42 | |||
| 43 | if ((flags & W_OK) && (attr & 1)) |
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| 44 | { |
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| 45 | errno = EACCES; |
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| 46 | return -1; /* not writable */ |
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| 47 | } |
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| 48 | |||
| 49 | if (flags & X_OK) |
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| 50 | { |
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| 51 | if (!_is_executable(fn, 0, 0)) |
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| 52 | { |
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| 53 | errno = EACCES; |
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| 54 | return -1; |
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| 55 | } |
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| 56 | } |
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| 57 | |||
| 58 | return 0; /* everything else is OK */ |
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| 59 | } |