| 0,0 → 1,62 |
|---|
| /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| #include <libc/stubs.h> |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <libc/file.h> |
| #include <libc/stdiohk.h> |
| |
| int _filbuf(FILE *f) |
| { |
| int size; |
| char c; |
| |
| if (f->_flag & _IORW) |
| f->_flag |= _IOREAD; |
| |
| if ((f->_flag&_IOREAD) == 0) |
| return EOF; |
| if (f->_flag&(_IOSTRG|_IOEOF)) |
| return EOF; |
| tryagain: |
| if (f->_base==NULL) { |
| if (f->_flag&_IONBF) { |
| f->_base = &c; |
| goto tryagain; |
| } |
| size = 512; |
| if ((f->_base = malloc(size)) == NULL) { |
| f->_flag |= _IONBF; |
| goto tryagain; |
| } |
| f->_flag |= _IOMYBUF; |
| f->_bufsiz = size; |
| } |
| if (f == stdin) { |
| if (stdout->_flag&_IOLBF) |
| fflush(stdout); |
| if (stderr->_flag&_IOLBF) |
| fflush(stderr); |
| } |
| if(f->std_ops && STM_OP(f,read)) |
| { |
| f->_cnt=STM_OP(f,read)(f,f->_base,f->_flag & _IONBF ? 1 : f->_bufsiz); |
| } else { |
| f->_cnt = read(fileno(f), f->_base,f->_flag & _IONBF ? 1 : f->_bufsiz); |
| } |
| f->_ptr = f->_base; |
| if (f->_flag & _IONBF && f->_base == &c) |
| f->_base = NULL; |
| if (--f->_cnt < 0) { |
| if (f->_cnt == -1) { |
| f->_flag |= _IOEOF; |
| if (f->_flag & _IORW) |
| f->_flag &= ~_IOREAD; |
| } else |
| f->_flag |= _IOERR; |
| f->_cnt = 0; |
| return EOF; |
| } |
| return *f->_ptr++ & 0377; |
| } |