user: 下面的汇编指令对应的C源代码是什么：

```asm
<str_echo>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x430,%rsp
  mov    %edi,-0x424(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x424(%rbp),%eax
  mov    %eax,%esi
  lea    D43(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
L29:
  mov    -0x424(%rbp),%eax
  mov    %eax,%edx
  lea    D79(%rip),%rax
  mov    %rax,%rsi
  lea    D66(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <noprintf@plt>
  lea    -0x410(%rbp),%rcx
  mov    -0x424(%rbp),%eax
  mov    $0x400,%edx
  mov    %rcx,%rsi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <readline@plt>
  mov    %eax,-0x418(%rbp)
  mov    -0x418(%rbp),%eax
  mov    %eax,%esi
  lea    D97(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  cmpl   $0x0,-0x418(%rbp)
  jne    L31
  lea    D79(%rip),%rax
  mov    %rax,%rsi
  lea    D37(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <noprintf@plt>
  mov    $0x0,%eax
  jmp    L37
L31:
  cmpl   $0x0,-0x418(%rbp)
  jns    L50
  lea    D22(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <perror@plt>
  mov    $0xffffffff,%eax
  jmp    L37
L50:
  mov    -0x424(%rbp),%eax
  mov    %eax,%edx
  lea    D79(%rip),%rax
  mov    %rax,%rsi
  lea    D26(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <noprintf@plt>
  mov    -0x418(%rbp),%edx
  lea    -0x410(%rbp),%rcx
  mov    -0x424(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <writen@plt>
  mov    %eax,-0x414(%rbp)
  mov    -0x414(%rbp),%eax
  cmp    -0x418(%rbp),%eax
  je     L29
  lea    D48(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <perror@plt>
  mov    $0xffffffff,%eax
L37:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L49
  call   <__stack_chk_fail@plt>
L49:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D43
type_guessed: string
name: extract_symbolic_data
arguments: label: D79
type_guessed: string
name: extract_symbolic_data
arguments: label: D66
type_guessed: string
name: extract_symbolic_data
arguments: label: D97
type_guessed: string
name: extract_symbolic_data
arguments: label: D37
type_guessed: string
name: extract_symbolic_data
arguments: label: D22
type_guessed: string
name: extract_symbolic_data
arguments: label: D26
type_guessed: string
name: extract_symbolic_data
arguments: label: D48
type_guessed: string

tool: D43: sockfd = %d


tool: D79: /scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/anthony-kolesov/arc_ltp/refs/heads/master/testcases/kernel/sched/clisrv/pthserv.c

tool: D66: %s: str_echo(): reading from sockfd %d


tool: D97: str_echo: n = %d


tool: D37: %s: str_echo(): connection terminated


tool: D22: str_echo: readline error

tool: D26: %s: str_echo(): writing to sockfd = %d


tool: D48: str_echo: writen error

assistant: ```c
int str_echo(sockfd)
int sockfd;
{
  int n, testint;
  char line[1024];
  printf("sockfd = %d\n", sockfd);
  for (;;) {
    ;
    noprintf("%s: str_echo(): reading from sockfd %d\n", "/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/anthony-kolesov/arc_ltp/refs/heads/master/testcases/kernel/sched/clisrv/pthserv.c", sockfd);
    n = readline(sockfd, line, 1024);
    printf("str_echo: n = %d\n", n);
    if (n == 0) {
      noprintf("%s: str_echo(): connection terminated\n", "/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/anthony-kolesov/arc_ltp/refs/heads/master/testcases/kernel/sched/clisrv/pthserv.c");
      return 0;
    } else if (n < 0) {
      perror("str_echo: readline error");
      return (-1);
    }
    noprintf("%s: str_echo(): writing to sockfd = %d\n", "/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/anthony-kolesov/arc_ltp/refs/heads/master/testcases/kernel/sched/clisrv/pthserv.c", sockfd);
    testint = writen(sockfd, line, n);
    ;
    if (testint != n) {
      perror("str_echo: writen error");
      return (-1);
    };
  }
}
```