in pathconf, -1, not 0, means unsupported.. syncio presumably works, too.
[musl] / src / unistd / read.c
1 #include <unistd.h>
2 #include "syscall.h"
3 #include "libc.h"
4
5 ssize_t read(int fd, void *buf, size_t count)
6 {
7         return syscall_cp(SYS_read, fd, buf, count);
8 }