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#include <errno.h>
#include <bits/ensure.h>
#include <fcntl.h>
#include <stdarg.h>
#include <mlibc/debug.hpp>
#include <mlibc/posix-sysdeps.hpp>
int creat(const char *pathname, mode_t mode) {
return open(pathname, O_CREAT|O_WRONLY|O_TRUNC, mode);
}
int fallocate(int, int, off_t, off_t) {
mlibc::infoLogger() << "mlibc: fallocate() is a no-op" << frg::endlog;
errno = ENOSYS;
return -1;
}
int fcntl(int fd, int command, ...) {
va_list args;
va_start(args, command);
int result;
MLIBC_CHECK_OR_ENOSYS(mlibc::sys_fcntl, -1);
if(int e = mlibc::sys_fcntl(fd, command, args, &result); e) {
errno = e;
return -1;
}
va_end(args);
return result;
}
int openat(int dirfd, const char *pathname, int flags, ...) {
va_list args;
va_start(args, flags);
mode_t mode = 0;
int fd;
if((flags & (O_CREAT | O_TMPFILE)))
mode = va_arg(args, mode_t);
MLIBC_CHECK_OR_ENOSYS(mlibc::sys_openat, -1);
if(int e = mlibc::sys_openat(dirfd, pathname, flags, mode, &fd); e) {
errno = e;
return -1;
}
va_end(args);
return fd;
}
int posix_fadvise(int fd, off_t offset, off_t length, int advice) {
if(!mlibc::sys_fadvise) {
mlibc::infoLogger() << "mlibc: fadvise() ignored due to missing sysdep" << frg::endlog;
return 0;
}
// posix_fadvise() returns an error instead of setting errno.
return mlibc::sys_fadvise(fd, offset, length, advice);
}
int posix_fallocate(int fd, off_t offset, off_t size) {
// posix_fallocate() returns an error instead of setting errno.
if(!mlibc::sys_fallocate) {
MLIBC_MISSING_SYSDEP();
return ENOSYS;
}
return mlibc::sys_fallocate(fd, offset, size);
}
// This is a linux extension
int name_to_handle_at(int, const char *, struct file_handle *, int *, int) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
int open_by_handle_at(int, struct file_handle *, int) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
ssize_t splice(int, off_t *, int, off_t *, size_t, unsigned int) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
ssize_t vmsplice(int, const struct iovec *, size_t, unsigned int) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
int open(const char *pathname, int flags, ...) {
mode_t mode = 0;
if ((flags & O_CREAT) || (flags & O_TMPFILE)) {
va_list args;
va_start(args, flags);
mode = va_arg(args, mode_t);
va_end(args);
}
int fd;
if(int e = mlibc::sys_open(pathname, flags, mode, &fd); e) {
errno = e;
return -1;
}
return fd;
}
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