Luna/libs/libc/src/fcntl.cpp

#include <fcntl.h>
#include <luna/syscall.h>
#include <stdarg.h>
#include <stdint.h>
#include <sys/syscall.h>

extern "C"
{
    int open(const char* pathname, int flags, ...)
    {
        va_list ap;
        va_start(ap, flags);
        long result = __lc_fast_syscall3(SYS_open, pathname, flags, va_arg(ap, unsigned int));
        va_end(ap);
        return (int)result;
    }

    int creat(const char* pathname, mode_t mode)
    {
        return (int)__lc_fast_syscall3(SYS_open, pathname, O_WRONLY | O_CREAT | O_TRUNC,
                                       mode); // we don't need to pass this through to open(), we can avoid variadic
                                              // stuff since we're sure mode exists.
    }

    int fcntl(int fd, int cmd, ...)
    {
        va_list ap;
        va_start(ap, cmd);
        long result = __lc_fast_syscall3(SYS_fcntl, fd, cmd, va_arg(ap, uintptr_t));
        va_end(ap);
        return (int)result;
    }
}