user: What would the C source look like for the assembly code provided here?

```asm
<main>:
  endbr64
  push   %r13
  mov    $0x1,%esi
  push   %r12
  lea    D86(%rip),%r12
  push   %rbp
  mov    %r12,%rdi
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  call   <ftok@plt>
  cmp    $0xffffffffffffffff,%rax
  je     L64
  mov    $0x1,%esi
  mov    %r12,%rdi
  mov    %rax,%rbp
  call   <ftok@plt>
  mov    %rax,%r13
  cmp    $0xffffffffffffffff,%rax
  je     L137
  mov    $0x1b6,%edx
  mov    $0x2,%esi
  mov    %rbp,%rdi
  call   <semget@plt>
  mov    %eax,%r12d
  cmp    $0xffffffff,%eax
  je     L104
  mov    %r13,%rdi
  mov    $0x1b6,%edx
  mov    $0x32,%esi
  call   <shmget@plt>
  mov    %eax,%edi
  cmp    $0xffffffff,%eax
  je     L152
  xor    %edx,%edx
  xor    %esi,%esi
  call   <shmat@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L69
  mov    %rsp,%r13
  mov    $0x2,%edx
  mov    %r12d,%edi
  movabs $0x100000000,%rax
  mov    %r13,%rsi
  movq   $0x0,(%rsp)
  movq   $0x0,0x8(%rsp)
  mov    %rax,0x10(%rsp)
  movq   $0x0,0x18(%rsp)
  call   <semop@plt>
  cmp    $0xffffffff,%eax
  je     L88
  lea    D82(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcpy@plt>
  mov    $0x2,%edx
  mov    %r13,%rsi
  mov    %r12d,%edi
  movabs $0xffffffff00000000,%rax
  movq   $0x0,0x8(%rsp)
  mov    %rax,(%rsp)
  movabs $0x100000001,%rax
  mov    %rax,0x10(%rsp)
  movq   $0x0,0x18(%rsp)
  call   <semop@plt>
  cmp    $0xffffffff,%eax
  je     L88
  mov    %rbp,%rdi
  call   <shmdt@plt>
  mov    %eax,%r12d
  cmp    $0xffffffff,%eax
  je     L106
  xor    %r12d,%r12d
L127:
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L6
  add    $0x30,%rsp
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L88:
  lea    D65(%rip),%rdi
  or     $0xffffffff,%r12d
  call   <printf@plt>
  jmp    L127
L137:
  lea    D16(%rip),%rdi
  or     $0xffffffff,%r12d
  call   <printf@plt>
  jmp    L127
L64:
  lea    D13(%rip),%rdi
  or     $0xffffffff,%r12d
  call   <printf@plt>
  jmp    L127
L152:
  lea    D40(%rip),%rdi
  or     $0xffffffff,%r12d
  call   <printf@plt>
  jmp    L127
L104:
  lea    D49(%rip),%rdi
  call   <printf@plt>
  jmp    L127
L69:
  lea    D46(%rip),%rdi
  or     $0xffffffff,%r12d
  call   <printf@plt>
  jmp    L127
L106:
  lea    D2(%rip),%rdi
  call   <printf@plt>
  jmp    L127
L6:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_label: D86
datatype: string
name: unpack_data
arguments: data_label: D82
datatype: string
name: unpack_data
arguments: data_label: D65
datatype: string
name: unpack_data
arguments: data_label: D16
datatype: string
name: unpack_data
arguments: data_label: D13
datatype: string
name: unpack_data
arguments: data_label: D40
datatype: string
name: unpack_data
arguments: data_label: D49
datatype: string
name: unpack_data
arguments: data_label: D46
datatype: string
name: unpack_data
arguments: data_label: D2
datatype: string

tool: D86: /dev/null

tool: D82: Hello from Client

tool: D65: main: semop() failed


tool: D16: main: ftok() for shm failed


tool: D13: main: ftok() for sem failed


tool: D40: main: shmget() failed


tool: D49: main: semget() failed


tool: D46: main: shmat() failed


tool: D2: main: shmdt() failed


assistant: ```c
int main(int argc, char *argv[]) {
  struct sembuf operations[2];
  void *shm_address;
  int semid, shmid, rc;
  key_t semkey, shmkey;
  semkey = ftok("/dev/null", 1);
  if (semkey == (key_t)-1) {
    printf("main: ftok() for sem failed\n");
    return -1;
  }
  shmkey = ftok("/dev/null", 1);
  if (shmkey == (key_t)-1) {
    printf("main: ftok() for shm failed\n");
    return -1;
  }
  semid = semget(semkey, 2, 0666);
  if (semid == -1) {
    printf("main: semget() failed\n");
    return -1;
  }
  shmid = shmget(shmkey, 50, 0666);
  if (shmid == -1) {
    printf("main: shmget() failed\n");
    return -1;
  }
  shm_address = shmat(shmid, NULL, 0);
  if (shm_address == NULL) {
    printf("main: shmat() failed\n");
    return -1;
  }
  operations[0].sem_num = 0;
  operations[0].sem_op = 0;
  operations[0].sem_flg = 0;
  operations[1].sem_num = 0;
  operations[1].sem_op = 1;
  operations[1].sem_flg = 0;
  rc = semop(semid, operations, 2);
  if (rc == -1) {
    printf("main: semop() failed\n");
    return -1;
  }
  strcpy((char *)shm_address, "Hello from Client");
  operations[0].sem_num = 0;
  operations[0].sem_op = -1;
  operations[0].sem_flg = 0;
  operations[1].sem_num = 1;
  operations[1].sem_op = 1;
  operations[1].sem_flg = 0;
  rc = semop(semid, operations, 2);
  if (rc == -1) {
    printf("main: semop() failed\n");
    return -1;
  }
  rc = shmdt(shm_address);
  if (rc == -1) {
    printf("main: shmdt() failed\n");
    return -1;
  }
  return 0;
}
```