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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
| 2 | #include |
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| 3 | #include |
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| 4 | #include |
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| 5 | |||
| 6 | int setvbuf(FILE *f, char *buf, int type, size_t len) |
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| 7 | { |
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| 8 | int mine=0; |
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| 9 | if (!f) |
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| 10 | return -1; |
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| 11 | fflush(f); |
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| 12 | switch (type) |
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| 13 | { |
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| 14 | case _IOFBF: |
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| 15 | case _IOLBF: |
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| 16 | if (len <= 0) |
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| 17 | return -1; |
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| 18 | if (buf == 0) |
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| 19 | { |
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| 20 | buf = (char *)malloc(len); |
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| 21 | if (buf == 0) |
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| 22 | return -1; |
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| 23 | mine = 1; |
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| 24 | } |
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| 25 | case _IONBF: |
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| 26 | if (f->_base != NULL && f->_flag & _IOMYBUF) |
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| 27 | free(f->_base); |
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| 28 | f->_cnt = 0; |
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| 29 | |||
| 30 | f->_flag &= ~(_IONBF|_IOFBF|_IOLBF); |
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| 31 | f->_flag |= type; |
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| 32 | if (type != _IONBF) |
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| 33 | { |
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| 34 | if (mine) |
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| 35 | f->_flag |= _IOMYBUF; |
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| 36 | f->_ptr = f->_base = buf; |
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| 37 | f->_bufsiz = len; |
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| 38 | } |
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| 39 | else |
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| 40 | { |
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| 41 | f->_base = 0; |
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| 42 | f->_bufsiz = 0; |
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| 43 | } |
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| 44 | return 0; |
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| 45 | default: |
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| 46 | return -1; |
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| 47 | } |
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| 48 | } |