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

```asm
<iptables_list_chain>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x280,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%r14
  mov    %rdx,%r13
  mov    %rcx,%r12
  mov    %fs:0x28,%rax
  mov    %rax,0x278(%rsp)
  xor    %eax,%eax
  mov    $0x80000,%edi
  call   <malloc@plt>
  mov    %rax,%rbx
  test   %r12,%r12
  je     L27
  mov    %rsp,%rdi
  sub    $0x8,%rsp
  lea    D25(%rip),%rax
  push   %rax
  mov    %rbp,%r9
  lea    D54(%rip),%r8
  lea    D73(%rip),%rcx
  lea    D80(%rip),%rdx
  mov    $0x64,%esi
  call   <snprintf@plt>
  add    $0x10,%rsp
L54:
  mov    %rsp,%rdi
  lea    D77(%rip),%rsi
  mov    $0x0,%eax
  call   <popen@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L66
  movb   $0x0,(%rbx)
  lea    0x70(%rsp),%rbp
  jmp    L11
L27:
  mov    %rsp,%rdi
  sub    $0x8,%rsp
  lea    D25(%rip),%rax
  push   %rax
  mov    %rbp,%r9
  lea    D10(%rip),%r8
  lea    D73(%rip),%rcx
  lea    D80(%rip),%rdx
  mov    $0x64,%esi
  call   <snprintf@plt>
  add    $0x10,%rsp
  jmp    L54
L66:
  mov    %rbx,%rdi
  call   <free@plt>
  mov    $0x1,%ebp
  jmp    L32
L62:
  mov    %rbx,%rdi
  call   <strlen@plt>
  mov    $0x7ffff,%edx
  sub    %eax,%edx
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <strncat@plt>
L11:
  mov    %r12,%rdx
  mov    $0x200,%esi
  mov    %rbp,%rdi
  call   <fgets@plt>
  test   %rax,%rax
  jne    L62
  mov    %rbx,%rdi
  call   <strlen@plt>
  cltq
  movb   $0x0,(%rbx,%rax,1)
  lea    0x1(%rax),%rdx
  mov    $0x1,%ebp
  cmp    %r13,%rdx
  jbe    L37
L56:
  mov    %rbx,%rdi
  call   <free@plt>
  mov    %r12,%rdi
  call   <pclose@plt>
L32:
  mov    0x278(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L34
  mov    %rbp,%rax
  add    $0x280,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L37:
  mov    %rbx,%rsi
  mov    %r14,%rdi
  call   <memcpy@plt>
  mov    $0x0,%ebp
  jmp    L56
L34:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_tag: D25
type_guessed: string
name: disassemble_data
arguments: data_tag: D54
type_guessed: string
name: disassemble_data
arguments: data_tag: D73
type_guessed: string
name: disassemble_data
arguments: data_tag: D80
type_guessed: string
name: disassemble_data
arguments: data_tag: D77
type_guessed: string
name: disassemble_data
arguments: data_tag: D10
type_guessed: string

tool: D25: -n

tool: D54: -w -L

tool: D73: iptables

tool: D80: %s %s %s %s

tool: D77: r

tool: D10: -L

assistant: ```c
size_t iptables_list_chain(const char *chain_name, char *dst, size_t sz_dst, size_t use_xlock) {
  char cmd[100];
  char *dest = (char *)malloc(524288);
  if (use_xlock)
    snprintf(cmd, 100, "%s %s %s %s", "iptables", "-w -L", chain_name, "-n");
  else
    snprintf(cmd, 100, "%s %s %s %s", "iptables", "-L", chain_name, "-n");
  FILE *in;
  extern FILE *popen();
  char buff[512];
  if (!(in = popen(cmd, "r"))) {
    free(dest);
    return 1;
  }
  *dest = 0;
  while (fgets(buff, sizeof(buff), in) != NULL) {
    strncat(dest, buff, 524288 - strlen(dest) - 1);
  }
  size_t rc = 0;
  size_t dest_len = strlen(dest);
  dest[dest_len] = '\0';
  if (dest_len + 1 > sz_dst) {
    rc = 1;
  } else {
    memcpy(dst, dest, dest_len + 1);
  }
  free(dest);
  pclose(in);
  return rc;
}
```