syscalls/pread64.c

   1 /*
   2  * SYSCALL_DEFINE(pread64)(unsigned int fd, char __user *buf, size_t count, loff_t pos)
   3  */
   4 #include "random.h"
   5 #include "sanitise.h"
   6 #include "shm.h"
   7
   8 static void sanitise_pread64(int childno)
   9 {
  10
  11 retry_pos:
  12         if ((int) shm->syscall[childno].a4 < 0) {
  13                 shm->syscall[childno].a4 = rand64();
  14                 goto retry_pos;
  15         }
  16 }
  17
  18 struct syscallentry syscall_pread64 = {
  19         .name = "pread64",
  20         .num_args = 4,
  21         .sanitise = sanitise_pread64,
  22         .arg1name = "fd",
  23         .arg1type = ARG_FD,
  24         .arg2name = "buf",
  25         .arg2type = ARG_ADDRESS,
  26         .arg3name = "count",
  27         .arg3type = ARG_LEN,
  28         .arg4name = "pos",
  29         .flags = NEED_ALARM,
  30 };