| 0,0 → 1,48 |
|---|
| /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <libc/file.h> |
| |
| int setvbuf(FILE *f, char *buf, int type, size_t len) |
| { |
| int mine=0; |
| if (!f) |
| return -1; |
| fflush(f); |
| switch (type) |
| { |
| case _IOFBF: |
| case _IOLBF: |
| if (len <= 0) |
| return -1; |
| if (buf == 0) |
| { |
| buf = (char *)malloc(len); |
| if (buf == 0) |
| return -1; |
| mine = 1; |
| } |
| case _IONBF: |
| if (f->_base != NULL && f->_flag & _IOMYBUF) |
| free(f->_base); |
| f->_cnt = 0; |
| |
| f->_flag &= ~(_IONBF|_IOFBF|_IOLBF); |
| f->_flag |= type; |
| if (type != _IONBF) |
| { |
| if (mine) |
| f->_flag |= _IOMYBUF; |
| f->_ptr = f->_base = buf; |
| f->_bufsiz = len; |
| } |
| else |
| { |
| f->_base = 0; |
| f->_bufsiz = 0; |
| } |
| return 0; |
| default: |
| return -1; |
| } |
| } |