banan-os/userspace/libraries/LibC/fcntl.cpp

41 lines
810 B
C++

#include <fcntl.h>
#include <errno.h>
#include <stdarg.h>
#include <sys/syscall.h>
#include <unistd.h>
int creat(const char* path, mode_t mode)
{
return syscall(SYS_CREATE, path, S_IFREG | __UMASKED_MODE(mode));
}
int open(const char* path, int oflag, ...)
{
va_list args;
va_start(args, oflag);
mode_t mode = va_arg(args, mode_t);
va_end(args);
return syscall(SYS_OPEN, path, oflag, __UMASKED_MODE(mode));
}
int openat(int fd, const char* path, int oflag, ...)
{
va_list args;
va_start(args, oflag);
mode_t mode = va_arg(args, mode_t);
va_end(args);
return syscall(SYS_OPENAT, fd, path, oflag, __UMASKED_MODE(mode));
}
int fcntl(int fildes, int cmd, ...)
{
va_list args;
va_start(args, cmd);
int extra = va_arg(args, int);
va_end(args);
return syscall(SYS_FCNTL, fildes, cmd, extra);
}