| 0,0 → 1,62 |
|---|
| /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <sys/fsext.h> |
| #include <libc/bss.h> |
| #include <libc/dosio.h> |
| |
| static int num_fds; |
| static __FSEXT_Function **func_list; |
| static int tmp_ext=0xF000; |
| |
| static void |
| init(void) |
| { |
| static int init_count = -1; |
| if (init_count == __bss_count) |
| return; |
| init_count = __bss_count; |
| num_fds = 0; |
| func_list = 0; |
| } |
| |
| int __FSEXT_alloc_fd(__FSEXT_Function *_function) |
| { |
| int fd; |
| init(); |
| fd=tmp_ext++; |
| __FSEXT_set_function(fd, _function); |
| return fd; |
| } |
| |
| int |
| __FSEXT_set_function(int _fd, __FSEXT_Function *_function) |
| { |
| init(); |
| |
| if (_fd < 0) |
| return 1; |
| |
| if (num_fds <= _fd) |
| { |
| int old_fds = num_fds, i; |
| num_fds = (_fd+256) & ~255; |
| func_list = (__FSEXT_Function **)realloc(func_list, num_fds * sizeof(__FSEXT_Function *)); |
| if (func_list == 0) |
| return 1; |
| for (i=old_fds; i<num_fds; i++) |
| func_list[i] = 0; |
| } |
| func_list[_fd] = _function; |
| return 0; |
| } |
| |
| __FSEXT_Function * |
| __FSEXT_get_function(int _fd) |
| { |
| init(); |
| if (_fd < 0 || _fd >= num_fds) |
| return 0; |
| return func_list[_fd]; |
| } |