Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
4973 | right-hear | 1 | /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
2 | #include |
||
3 | #include |
||
4 | #include |
||
5 | #include |
||
6 | #include |
||
7 | #include |
||
8 | #include |
||
9 | #include |
||
10 | |||
11 | FILE * |
||
12 | fdopen(int fildes, const char *mode) |
||
13 | { |
||
14 | FILE *f; |
||
15 | int rw, oflags = 0; |
||
16 | char tbchar; |
||
17 | |||
18 | f = __alloc_file(); |
||
19 | if (f == NULL) |
||
20 | return NULL; |
||
21 | |||
22 | rw = (mode[1] == '+') || (mode[1] && (mode[2] == '+')); |
||
23 | |||
24 | switch (*mode) |
||
25 | { |
||
26 | case 'a': |
||
27 | oflags = O_CREAT | (rw ? O_RDWR : O_WRONLY); |
||
28 | break; |
||
29 | case 'r': |
||
30 | oflags = rw ? O_RDWR : O_RDONLY; |
||
31 | break; |
||
32 | case 'w': |
||
33 | oflags = O_TRUNC | O_CREAT | (rw ? O_RDWR : O_WRONLY); |
||
34 | break; |
||
35 | default: |
||
36 | return (NULL); |
||
37 | } |
||
38 | if (mode[1] == '+') |
||
39 | tbchar = mode[2]; |
||
40 | else |
||
41 | tbchar = mode[1]; |
||
42 | if (tbchar == 't') |
||
43 | oflags |= O_TEXT; |
||
44 | else if (tbchar == 'b') |
||
45 | oflags |= O_BINARY; |
||
46 | else |
||
47 | oflags |= (_fmode & (O_TEXT|O_BINARY)); |
||
48 | |||
49 | if (*mode == 'a') |
||
50 | lseek(fildes, 0, SEEK_END); |
||
51 | |||
52 | f->_cnt = 0; |
||
53 | f->_file = fildes; |
||
54 | f->_bufsiz = 0; |
||
55 | if (rw) |
||
56 | f->_flag = _IORW; |
||
57 | else if (*mode == 'r') |
||
58 | f->_flag = _IOREAD; |
||
59 | else |
||
60 | f->_flag = _IOWRT; |
||
61 | |||
62 | f->_base = f->_ptr = NULL; |
||
63 | |||
64 | setmode(fildes, oflags & (O_TEXT|O_BINARY)); |
||
65 | |||
66 | return f; |
||
67 | } |