src/fcntl/open.c

   1 #include <fcntl.h>
   2 #include <stdarg.h>
   3 #include "syscall.h"
   4 #include "libc.h"
   5
   6 int open(const char *filename, int flags, ...)
   7 {
   8         mode_t mode = 0;
   9
  10         if ((flags & O_CREAT) || (flags & O_TMPFILE) == O_TMPFILE) {
  11                 va_list ap;
  12                 va_start(ap, flags);
  13                 mode = va_arg(ap, mode_t);
  14                 va_end(ap);
  15         }
  16
  17         int fd = __sys_open_cp(filename, flags, mode);
  18         if (fd>=0 && (flags & O_CLOEXEC))
  19                 __syscall(SYS_fcntl, fd, F_SETFD, FD_CLOEXEC);
  20
  21         return __syscall_ret(fd);
  22 }
  23
  24 LFS64(open);