user: What is the c source code of the assembly code below?

```asm
<interpret_string>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %rsi,-0x50(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x48(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x28(%rbp)
  mov    -0x28(%rbp),%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x20(%rbp)
  mov    -0x50(%rbp),%rax
  movl   $0x0,(%rax)
  movb   $0x0,-0x9(%rbp)
  movl   $0x0,-0x2c(%rbp)
  jmp    L34
L6:
  mov    -0x2c(%rbp),%edx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L5
  mov    -0x28(%rbp),%eax
  sub    $0x3,%eax
  cmp    %eax,-0x2c(%rbp)
  jbe    L84
L5:
  mov    -0x2c(%rbp),%edx
  mov    -0x48(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,%edx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  movzbl (%rcx),%eax
  mov    %al,(%rdx)
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  lea    0x1(%rax),%edx
  mov    -0x50(%rbp),%rax
  mov    %edx,(%rax)
  jmp    L39
L84:
  mov    -0x2c(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%edx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0xb(%rbp)
  mov    -0x2c(%rbp),%eax
  add    $0x2,%eax
  mov    %eax,%edx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0xa(%rbp)
  movl   $0x0,-0x30(%rbp)
  lea    -0x30(%rbp),%rcx
  lea    -0x34(%rbp),%rdx
  lea    -0xb(%rbp),%rax
  lea    D8(%rip),%rsi
  mov    %rax,%rdi
  call   <sscanf@plt>
  mov    %eax,-0x24(%rbp)
  cmpl   $0x1,-0x24(%rbp)
  jne    L61
  mov    -0x30(%rbp),%eax
  cmp    $0x2,%eax
  jne    L61
  mov    -0x34(%rbp),%eax
  mov    %al,-0x35(%rbp)
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,%edx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x35(%rbp),%eax
  mov    %al,(%rdx)
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  lea    0x1(%rax),%edx
  mov    -0x50(%rbp),%rax
  mov    %edx,(%rax)
  addl   $0x2,-0x2c(%rbp)
  jmp    L39
L61:
  mov    -0x2c(%rbp),%edx
  mov    -0x48(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,%edx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  movzbl (%rcx),%eax
  mov    %al,(%rdx)
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  lea    0x1(%rax),%edx
  mov    -0x50(%rbp),%rax
  mov    %edx,(%rax)
L39:
  addl   $0x1,-0x2c(%rbp)
L34:
  mov    -0x2c(%rbp),%eax
  cmp    -0x28(%rbp),%eax
  jb     L6
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x50(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x20(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x18(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L75
  call   <__stack_chk_fail@plt>
L75:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D8
type: string

tool: D8: %x%n

assistant: ```c
char *interpret_string(char const *str, unsigned int *rlen) {
  unsigned int len, i, hexval;
  int scanres, consumed;
  char *result, *tmp, hex[3], special;
  len = strlen(str);
  tmp = malloc(len);
  *rlen = 0;
  hex[2] = 0;
  for (i = 0; i < len; i++) {
    if (str[i] != '\\' || i > len - 3) {
      tmp[*rlen] = str[i];
      (*rlen)++;
    } else {
      hex[0] = str[i + 1];
      hex[1] = str[i + 2];
      consumed = 0;
      scanres = sscanf(hex, "%x%n", &hexval, &consumed);
      if (scanres == 1 && consumed == 2) {
        special = (char)hexval;
        tmp[*rlen] = special;
        (*rlen)++;
        i = i + 2;
      } else {
        tmp[*rlen] = str[i];
        (*rlen)++;
      }
    }
  }
  result = malloc(*rlen);
  memcpy(result, tmp, *rlen);
  free(tmp);
  return result;
}
```