Rev 4921 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 9952 | turbocat | 1 | /* |
| 2 | * Copyright (C) KolibriOS team 2004-2024. All rights reserved. |
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| 3 | * Distributed under terms of the GNU General Public License |
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| 4 | */ |
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| 4921 | Serge | 5 | |
| 6 | #include |
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| 7 | #include |
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| 8 | #include |
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| 9952 | turbocat | 9 | #include |
| 4921 | Serge | 10 | #include "glue.h" |
| 11 | #include "io.h" |
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| 12 | |||
| 13 | _off_t |
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| 14 | _DEFUN (lseek, (fd, pos, whence), |
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| 15 | int fd _AND |
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| 16 | _off_t pos _AND |
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| 17 | int whence) |
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| 18 | { |
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| 9952 | turbocat | 19 | ksys_file_info_t info; |
| 4921 | Serge | 20 | __io_handle *ioh; |
| 21 | _off_t ret; |
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| 22 | |||
| 9952 | turbocat | 23 | if ((fd < 0) || (fd >=64)) |
| 4921 | Serge | 24 | { |
| 25 | errno = EBADF; |
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| 26 | return (-1); |
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| 9952 | turbocat | 27 | } |
| 4921 | Serge | 28 | |
| 29 | ioh = &__io_tab[fd]; |
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| 30 | |||
| 31 | switch(whence) |
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| 32 | { |
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| 33 | case SEEK_SET: |
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| 34 | ret = pos; |
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| 35 | break; |
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| 36 | case SEEK_CUR: |
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| 37 | ret = ioh->offset + pos; |
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| 38 | break; |
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| 39 | case SEEK_END: |
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| 40 | { |
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| 9952 | turbocat | 41 | _ksys_file_info(ioh->name, &info); |
| 4921 | Serge | 42 | ret = pos + info.size; |
| 43 | break; |
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| 44 | } |
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| 45 | default: |
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| 46 | errno = EINVAL; |
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| 9952 | turbocat | 47 | return -1; |
| 48 | } |
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| 4921 | Serge | 49 | |
| 50 | ioh->offset = ret; |
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| 51 | |||
| 9952 | turbocat | 52 | return ret; |
| 53 | } |