rosetta/lib/libc/io/unistd/read.c

#include <errno.h>
#include <mango/handle.h>
#include <mango/msg.h>
#include <rosetta/fs.h>
#include <sys/remote.h>

int read(int fd, void *buf, size_t count)
{
	int err;
	size_t nr_read;
	kern_status_t status = fs_read(fd, count, &err, buf, count, &nr_read);
	if (status != KERN_OK) {
		return __set_errno(__errno_from_kern_status(status));
	}

	if (err != SUCCESS) {
		return __set_errno(err);
	}

	return nr_read;
}