libc-top-half/musl/src/fcntl/open.c

   1 #include <fcntl.h>
   2 #include <stdarg.h>
   3 #include "syscall.h"
   4
   5 int open(const char *filename, int flags, ...)
   6 {
   7         mode_t mode = 0;
   8
   9         if ((flags & O_CREAT) || (flags & O_TMPFILE) == O_TMPFILE) {
  10                 va_list ap;
  11                 va_start(ap, flags);
  12                 mode = va_arg(ap, mode_t);
  13                 va_end(ap);
  14         }
  15
  16         int fd = __sys_open_cp(filename, flags, mode);
  17         if (fd>=0 && (flags & O_CLOEXEC))
  18                 __syscall(SYS_fcntl, fd, F_SETFD, FD_CLOEXEC);
  19
  20         return __syscall_ret(fd);
  21 }
  22
  23 weak_alias(open, open64);