syscalls/dup3.c

   1 /*
   2  * SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
   3  *
   4  * On success, returns the new descriptor.
   5  * On error, -1 is returned, and errno is set appropriately.
   6  */
   7
   8 #include <unistd.h>
   9 #include <fcntl.h>
  10 #include "sanitise.h"
  11 #include "compat.h"
  12
  13 struct syscallentry syscall_dup3 = {
  14         .name = "dup3",
  15         .num_args = 3,
  16         .arg1name = "oldfd",
  17         .arg1type = ARG_FD,
  18         .arg2name = "newfd",
  19         .arg2type = ARG_FD,
  20         .arg3name = "flags",
  21         .arg3type = ARG_LIST,
  22         .arg3list = {
  23                 .num = 1,
  24                 .values = { O_CLOEXEC },
  25         },
  26         .rettype = RET_FD,
  27         .flags = NEED_ALARM,
  28 };