user: Demonstrate the C code that generates the assembly output below:

```asm
<srandom_r>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %edi,-0x44(%rbp)
  mov    %rsi,-0x50(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  cmpq   $0x0,-0x50(%rbp)
  je     L22
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x34(%rbp),%eax
  cmp    $0x4,%eax
  ja     L28
  mov    -0x50(%rbp),%rax
  mov    0x8(%rax),%rax
  mov    %rax,-0x20(%rbp)
  cmpl   $0x0,-0x44(%rbp)
  jne    L23
  movl   $0x1,-0x44(%rbp)
L23:
  mov    -0x44(%rbp),%edx
  mov    -0x20(%rbp),%rax
  mov    %edx,(%rax)
  cmpl   $0x0,-0x34(%rbp)
  je     L9
  mov    -0x20(%rbp),%rax
  mov    %rax,-0x28(%rbp)
  mov    -0x44(%rbp),%eax
  mov    %eax,-0x3c(%rbp)
  mov    -0x50(%rbp),%rax
  mov    0x10(%rax),%eax
  mov    %eax,-0x38(%rbp)
  movq   $0x1,-0x30(%rbp)
  jmp    L34
L51:
  mov    -0x3c(%rbp),%eax
  movslq %eax,%rdx
  imul   $0xffffffff834e0b5f,%rdx,%rdx
  shr    $0x20,%rdx
  add    %eax,%edx
  sar    $0x10,%edx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  cltq
  mov    %rax,-0x18(%rbp)
  mov    -0x3c(%rbp),%eax
  movslq %eax,%rdx
  imul   $0xffffffff834e0b5f,%rdx,%rdx
  shr    $0x20,%rdx
  add    %eax,%edx
  sar    $0x10,%edx
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%edx
  imul   $0x1f31d,%edx,%ecx
  sub    %ecx,%eax
  mov    %eax,%edx
  movslq %edx,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  imul   $0x41a7,%eax,%edx
  mov    -0x18(%rbp),%rax
  imul   $0xfffff4ec,%eax,%eax
  add    %edx,%eax
  mov    %eax,-0x3c(%rbp)
  cmpl   $0x0,-0x3c(%rbp)
  jns    L100
  addl   $0x7fffffff,-0x3c(%rbp)
L100:
  addq   $0x4,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    -0x3c(%rbp),%edx
  mov    %edx,(%rax)
  addq   $0x1,-0x30(%rbp)
L34:
  mov    -0x38(%rbp),%eax
  cltq
  cmp    %rax,-0x30(%rbp)
  jl     L51
  mov    -0x50(%rbp),%rax
  mov    0x20(%rax),%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  mov    -0x50(%rbp),%rax
  mov    %rdx,0x18(%rax)
  mov    -0x50(%rbp),%rax
  mov    -0x20(%rbp),%rdx
  mov    %rdx,0x28(%rax)
  mov    -0x38(%rbp),%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %edx,%eax
  add    %eax,%eax
  mov    %eax,-0x38(%rbp)
  jmp    L120
L36:
  lea    -0x40(%rbp),%rdx
  mov    -0x50(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <random_r@plt>
L120:
  subl   $0x1,-0x38(%rbp)
  cmpl   $0x0,-0x38(%rbp)
  jns    L36
  jmp    L105
L9:
  nop
L105:
  mov    $0x0,%eax
  jmp    L127
L22:
  nop
  jmp    L24
L28:
  nop
L24:
  mov    $0xffffffff,%eax
L127:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L66
  call   <__stack_chk_fail@plt>
L66:
  leave
  ret
```

assistant: ```c
int srandom_r(unsigned int seed, struct random_data *buf) {
  int type;
  int *state;
  long int i;
  int word;
  int *dst;
  int kc;
  if (buf == NULL)
    goto fail;
  type = buf->rand_type;
  if ((unsigned int)type >= 5)
    goto fail;
  state = buf->state;
  if (seed == 0)
    seed = 1;
  state[0] = seed;
  if (type == 0)
    goto done;
  dst = state;
  word = seed;
  kc = buf->rand_deg;
  for (i = 1; i < kc; ++i) {
    long int hi = word / 127773;
    long int lo = word % 127773;
    word = 16807 * lo - 2836 * hi;
    if (word < 0)
      word += 2147483647;
    *++dst = word;
  }
  buf->fptr = &state[buf->rand_sep];
  buf->rptr = &state[0];
  kc *= 10;
  while (--kc >= 0) {
    int discard;
    (void)random_r(buf, &discard);
  }
done:
  return 0;
fail:
  return -1;
}
```