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

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x1a0,%rsp
  mov    %edi,-0x194(%rbp)
  mov    %rsi,-0x1a0(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    $0x0,%edi
  call   <ttyname@plt>
  mov    %rax,-0x178(%rbp)
  movb   $0x0,-0x186(%rbp)
  cmpq   $0x0,-0x178(%rbp)
  jne    L88
  mov    $0xa,%eax
  jmp    L193
L88:
  mov    -0x178(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    $0x4,%eax
  jg     L196
  mov    $0xa,%eax
  jmp    L193
L196:
  mov    -0x178(%rbp),%rax
  add    $0x5,%rax
  mov    %rax,-0x170(%rbp)
  lea    D6(%rip),%rax
  mov    %rax,%rsi
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x168(%rbp)
  cmpq   $0x0,-0x168(%rbp)
  jne    L275
  mov    $0xa,%eax
  jmp    L193
L267:
  mov    -0x170(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%edx
  lea    -0x70(%rbp),%rcx
  mov    -0x170(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strncmp@plt>
  test   %eax,%eax
  jne    L275
  movb   $0x1,-0x186(%rbp)
  jmp    L227
L275:
  mov    -0x168(%rbp),%rdx
  lea    -0x70(%rbp),%rax
  mov    $0x64,%esi
  mov    %rax,%rdi
  call   <fgets@plt>
  test   %rax,%rax
  jne    L267
L227:
  mov    -0x168(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  cmpb   $0x0,-0x186(%rbp)
  jne    L65
  mov    $0xa,%eax
  jmp    L193
L65:
  movl   $0x0,-0x184(%rbp)
  jmp    L125
L95:
  mov    -0x184(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  cmp    $0x9,%al
  jne    L190
  mov    -0x184(%rbp),%eax
  cltq
  movb   $0x20,-0x70(%rbp,%rax,1)
L190:
  mov    -0x184(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  cmp    $0xa,%al
  jne    L246
  mov    -0x184(%rbp),%eax
  cltq
  movb   $0x0,-0x70(%rbp,%rax,1)
L246:
  mov    -0x184(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  cmp    $0xd,%al
  jne    L239
  mov    -0x184(%rbp),%eax
  cltq
  movb   $0x0,-0x70(%rbp,%rax,1)
L239:
  addl   $0x1,-0x184(%rbp)
L125:
  lea    -0x70(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0x184(%rbp)
  jl     L95
  movl   $0x0,-0x184(%rbp)
  jmp    L119
L151:
  mov    -0x184(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  cmp    $0x20,%al
  jne    L185
  jmp    L154
L111:
  mov    -0x184(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x180(%rbp)
  jmp    L38
L180:
  mov    -0x180(%rbp),%eax
  add    $0x1,%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%edx
  mov    -0x180(%rbp),%eax
  cltq
  mov    %dl,-0x70(%rbp,%rax,1)
  addl   $0x1,-0x180(%rbp)
L38:
  lea    -0x70(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0x180(%rbp)
  jl     L180
L154:
  mov    -0x184(%rbp),%eax
  add    $0x1,%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  cmp    $0x20,%al
  je     L111
L185:
  addl   $0x1,-0x184(%rbp)
L119:
  lea    -0x70(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0x184(%rbp)
  jl     L151
  movb   $0x20,-0x185(%rbp)
  lea    -0x70(%rbp),%rax
  mov    %rax,-0x160(%rbp)
  movl   $0x0,-0x17c(%rbp)
  lea    -0x70(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x180(%rbp)
  movl   $0x0,-0x184(%rbp)
  jmp    L77
L14:
  mov    -0x184(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  cmp    %al,-0x185(%rbp)
  jne    L61
  addl   $0x1,-0x17c(%rbp)
  mov    -0x184(%rbp),%eax
  cltq
  movb   $0x0,-0x70(%rbp,%rax,1)
  cmpb   $0x20,-0x185(%rbp)
  je     L30
  addl   $0x1,-0x184(%rbp)
  mov    -0x184(%rbp),%eax
  cltq
  movb   $0x0,-0x70(%rbp,%rax,1)
L30:
  movb   $0x20,-0x185(%rbp)
  mov    -0x184(%rbp),%eax
  add    $0x1,%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  cmp    $0x22,%al
  jne    L242
  movb   $0x22,-0x185(%rbp)
  addl   $0x1,-0x184(%rbp)
  mov    -0x184(%rbp),%eax
  cltq
  movb   $0x0,-0x70(%rbp,%rax,1)
L242:
  mov    -0x184(%rbp),%eax
  add    $0x1,%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  cmp    $0x27,%al
  jne    L216
  movb   $0x27,-0x185(%rbp)
  addl   $0x1,-0x184(%rbp)
  mov    -0x184(%rbp),%eax
  cltq
  movb   $0x0,-0x70(%rbp,%rax,1)
L216:
  mov    -0x184(%rbp),%eax
  add    $0x1,%eax
  lea    -0x70(%rbp),%rdx
  cltq
  add    %rax,%rdx
  mov    -0x17c(%rbp),%eax
  cltq
  mov    %rdx,-0x160(%rbp,%rax,8)
L61:
  addl   $0x1,-0x184(%rbp)
L77:
  mov    -0x184(%rbp),%eax
  cmp    -0x180(%rbp),%eax
  jl     L14
  mov    -0x150(%rbp),%rax
  mov    %rax,%rsi
  lea    D29(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
L193:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L203
  call   <__stack_chk_fail@plt>
L203:
  leave
  ret
```

tool_calls: name: unpack_data
arguments: tag: D6
type: string
name: unpack_data
arguments: tag: D7
type: string
name: unpack_data
arguments: tag: D29
type: string

tool: D6: r

tool: D7: /etc/ttys

tool: D29: %s


assistant: ```c
int main(int argc, char **argv) {
  char *ttname = ttyname(0);
  char *tn;
  FILE *ttys;
  char buffer[100];
  char found = 0;
  int j, k;
  char delim;
  char *parts[30];
  int part;
  if (!ttname)
    return 10;
  if (strlen(ttname) < 5)
    return 10;
  tn = ttname + 5;
  ttys = fopen("/etc/ttys", "r");
  if (!ttys)
    return 10;
  while (fgets(buffer, 100, ttys)) {
    if (!strncmp(tn, buffer, strlen(tn))) {
      found = 1;
      break;
    }
  }
  fclose(ttys);
  if (!found)
    return 10;
  for (j = 0; j < strlen(buffer); j++) {
    if (buffer[j] == 9)
      buffer[j] = 32;
    if (buffer[j] == 10)
      buffer[j] = 0;
    if (buffer[j] == 13)
      buffer[j] = 0;
  }
  for (j = 0; j < strlen(buffer); j++) {
    if (buffer[j] == 32) {
      while (buffer[j + 1] == 32) {
        for (k = j + 1; k < strlen(buffer); k++) {
          buffer[k] = buffer[k + 1];
        }
      }
    }
  }
  delim = ' ';
  parts[0] = buffer;
  part = 0;
  k = strlen(buffer);
  for (j = 0; j < k; j++) {
    if (buffer[j] == delim) {
      part++;
      buffer[j] = 0;
      if (delim != ' ') {
        j++;
        buffer[j] = 0;
      }
      delim = ' ';
      if (buffer[j + 1] == '"') {
        delim = '"';
        j++;
        buffer[j] = 0;
      }
      if (buffer[j + 1] == '\'') {
        delim = '\'';
        j++;
        buffer[j] = 0;
      }
      parts[part] = &(buffer[j + 1]);
    }
  }
  printf("%s\n", parts[2]);
  return 0;
}
```