user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<seedrand>:
  endbr64
  push   %r13
  xor    %esi,%esi
  push   %r12
  mov    %rdi,%r12
  lea    D2(%rip),%rdi
  push   %rbp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  call   <open@plt>
  mov    %eax,%ebp
  cmp    $0xffffffff,%eax
  je     L232
L137:
  mov    %rsp,%r13
  mov    $0x10,%edx
  mov    %ebp,%edi
  mov    %r13,%rsi
  call   <read@plt>
  cmp    $0x10,%eax
  je     L69
  mov    $0x2,%edi
  call   <exit@plt>
L69:
  mov    %ebp,%edi
  call   <close@plt>
  movzbl (%rsp),%eax
  cmp    $0x24,%al
  sete   %dl
  cmp    $0x6e,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L181
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L20
L181:
  movb   $0x20,(%rsp)
L20:
  movzbl 0x1(%rsp),%eax
  cmp    $0x24,%al
  sete   %dl
  cmp    $0x6e,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L327
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L125
L327:
  movb   $0x20,0x1(%rsp)
L125:
  movzbl 0x2(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L209
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L255
L209:
  movb   $0x20,0x2(%rsp)
L255:
  movzbl 0x3(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L14
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L297
L14:
  movb   $0x20,0x3(%rsp)
L297:
  movzbl 0x4(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L172
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L163
L172:
  movb   $0x20,0x4(%rsp)
L163:
  movzbl 0x5(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L243
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L142
L243:
  movb   $0x20,0x5(%rsp)
L142:
  movzbl 0x6(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L9
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L239
L9:
  movb   $0x20,0x6(%rsp)
L239:
  movzbl 0x7(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L16
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L152
L16:
  movb   $0x20,0x7(%rsp)
L152:
  movzbl 0x8(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L258
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L39
L258:
  movb   $0x20,0x8(%rsp)
L39:
  movzbl 0x9(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L259
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L122
L259:
  movb   $0x20,0x9(%rsp)
L122:
  movzbl 0xa(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L113
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L80
L113:
  movb   $0x20,0xa(%rsp)
L80:
  movzbl 0xb(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L197
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L308
L197:
  movb   $0x20,0xb(%rsp)
L308:
  movzbl 0xc(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L193
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L287
L193:
  movb   $0x20,0xc(%rsp)
L287:
  movzbl 0xd(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L96
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L228
L96:
  movb   $0x20,0xd(%rsp)
L228:
  movzbl 0xe(%rsp),%eax
  cmp    $0x6e,%al
  sete   %dl
  cmp    $0x24,%al
  sete   %cl
  or     %ecx,%edx
  test   %al,%al
  sete   %cl
  or     %cl,%dl
  jne    L313
  and    $0xffffffdf,%eax
  cmp    $0x53,%al
  jne    L66
L313:
  movb   $0x20,0xe(%rsp)
L66:
  mov    %r13,%rsi
  mov    %r12,%rdi
  movb   $0x0,0xf(%rsp)
  call   <strcpy@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L65
  add    $0x20,%rsp
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax,%rax,1)
L232:
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L137
L65:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: tag: D2
type: string

tool: D2: /dev/urandom

assistant: ```c
void seedrand(char *seed) {
  char buf[16];
  int fd, i;
  fd = open("/dev/urandom", 0);
  if (fd == -1)
    exit(1);
  if (read(fd, buf, sizeof buf) != sizeof buf)
    exit(2);
  close(fd);
  for (i = 0; i < 16 - 1; i++) {
    if (buf[i] == 'n' || buf[i] == 's' || buf[i] == '$' || buf[i] == 'S' || buf[i] == '\0')
      buf[i] = ' ';
  }
  buf[i] = 0;
  strcpy(seed, buf);
}
```