diff options
Diffstat (limited to 'openbsd-compat/posix_win.c')
-rw-r--r-- | openbsd-compat/posix_win.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/openbsd-compat/posix_win.c b/openbsd-compat/posix_win.c new file mode 100644 index 0000000..eac67c2 --- /dev/null +++ b/openbsd-compat/posix_win.c | |||
@@ -0,0 +1,61 @@ | |||
1 | /* | ||
2 | * Public domain | ||
3 | * | ||
4 | * File IO compatibility shims | ||
5 | * Brent Cook <bcook@openbsd.org> | ||
6 | */ | ||
7 | |||
8 | #define NO_REDEF_POSIX_FUNCTIONS | ||
9 | |||
10 | #include <windows.h> | ||
11 | |||
12 | #include <errno.h> | ||
13 | #include <io.h> | ||
14 | |||
15 | #include "posix_win.h" | ||
16 | |||
17 | int | ||
18 | posix_open(const char *path, ...) | ||
19 | { | ||
20 | va_list ap; | ||
21 | int mode = 0; | ||
22 | int flags; | ||
23 | |||
24 | va_start(ap, path); | ||
25 | flags = va_arg(ap, int); | ||
26 | if (flags & O_CREAT) | ||
27 | mode = va_arg(ap, int); | ||
28 | va_end(ap); | ||
29 | |||
30 | flags |= O_BINARY | O_NOINHERIT; | ||
31 | |||
32 | return (open(path, flags, mode)); | ||
33 | } | ||
34 | |||
35 | int | ||
36 | posix_close(int fd) | ||
37 | { | ||
38 | return (close(fd)); | ||
39 | } | ||
40 | |||
41 | ssize_t | ||
42 | posix_read(int fd, void *buf, size_t count) | ||
43 | { | ||
44 | if (count > INT_MAX) { | ||
45 | errno = EINVAL; | ||
46 | return (-1); | ||
47 | } | ||
48 | |||
49 | return (read(fd, buf, (unsigned int)count)); | ||
50 | } | ||
51 | |||
52 | ssize_t | ||
53 | posix_write(int fd, const void *buf, size_t count) | ||
54 | { | ||
55 | if (count > INT_MAX) { | ||
56 | errno = EINVAL; | ||
57 | return (-1); | ||
58 | } | ||
59 | |||
60 | return (write(fd, buf, (unsigned int)count)); | ||
61 | } | ||