1#include <unistd.h>
2#include <limits.h>
3#include <errno.h>
4
5long fpathconf(int fd, int name)
6{
7 static const short values[] = {
8 [_PC_LINK_MAX] = _POSIX_LINK_MAX,
9 [_PC_MAX_CANON] = _POSIX_MAX_CANON,
10 [_PC_MAX_INPUT] = _POSIX_MAX_INPUT,
11 [_PC_NAME_MAX] = NAME_MAX,
12 [_PC_PATH_MAX] = PATH_MAX,
13#ifdef __wasilibc_unmodified_upstream // WASI has no pipes
14 [_PC_PIPE_BUF] = PIPE_BUF,
15#else
16 [_PC_PIPE_BUF] = -1,
17#endif
18 [_PC_CHOWN_RESTRICTED] = 1,
19 [_PC_NO_TRUNC] = 1,
20 [_PC_VDISABLE] = 0,
21 [_PC_SYNC_IO] = 1,
22 [_PC_ASYNC_IO] = -1,
23 [_PC_PRIO_IO] = -1,
24 [_PC_SOCK_MAXBUF] = -1,
25 [_PC_FILESIZEBITS] = FILESIZEBITS,
26 [_PC_REC_INCR_XFER_SIZE] = 4096,
27 [_PC_REC_MAX_XFER_SIZE] = 4096,
28 [_PC_REC_MIN_XFER_SIZE] = 4096,
29 [_PC_REC_XFER_ALIGN] = 4096,
30 [_PC_ALLOC_SIZE_MIN] = 4096,
31 [_PC_SYMLINK_MAX] = -1,
32 [_PC_2_SYMLINKS] = 1
33 };
34 if (name >= sizeof(values)/sizeof(values[0])) {
35 errno = EINVAL;
36 return -1;
37 }
38 return values[name];
39}