user: 请从给定的汇编指令推导出C源代码:

```asm
<create_update_name_wanip_postfile>:
  endbr64
  push   %r15
  push   %r14
  mov    %rsi,%r14
  lea    D69(%rip),%rsi
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rcx,%r12
  push   %rbp
  sub    $0xb0,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xa8(%rsp)
  xor    %eax,%eax
  call   <fopen@plt>
  test   %rax,%rax
  je     L22
  mov    %rax,%rbp
  mov    %rax,%rcx
  mov    $0xc,%edx
  mov    $0x1,%esi
  lea    D85(%rip),%rdi
  lea    0x60(%rsp),%r15
  call   <fwrite@plt>
  mov    %r14,%rdx
  mov    %rbp,%rdi
  xor    %eax,%eax
  lea    D61(%rip),%rsi
  mov    %rsp,%r14
  call   <fprintf@plt>
  mov    %r13,%rdx
  mov    %rbp,%rdi
  lea    0x20(%rsp),%r13
  lea    D86(%rip),%rsi
  xor    %eax,%eax
  call   <fprintf@plt>
  mov    $0x40,%esi
  mov    %r13,%rdi
  call   <get_serial_number@plt>
  mov    %r13,%rdx
  mov    %rbp,%rdi
  xor    %eax,%eax
  lea    D13(%rip),%rsi
  call   <fprintf@plt>
  mov    $0x20,%esi
  mov    %r14,%rdi
  call   <get_mac_address@plt>
  mov    %r14,%rdx
  mov    %rbp,%rdi
  xor    %eax,%eax
  lea    D67(%rip),%rsi
  call   <fprintf@plt>
  mov    $0x40,%ecx
  mov    %r15,%rdx
  mov    %r14,%rsi
  mov    %r13,%rdi
  call   <gen_encrypt_key@plt>
  mov    %r15,%rdx
  mov    %rbp,%rdi
  xor    %eax,%eax
  lea    D27(%rip),%rsi
  call   <fprintf@plt>
  mov    %r12,%rdx
  mov    %rbp,%rdi
  xor    %eax,%eax
  lea    D94(%rip),%rsi
  call   <fprintf@plt>
  lea    D33(%rip),%rdx
  lea    D99(%rip),%rsi
  xor    %eax,%eax
  mov    %rbp,%rdi
  call   <fprintf@plt>
  mov    %rbp,%rdi
  call   <fclose@plt>
  xor    %eax,%eax
L12:
  mov    0xa8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L28
  add    $0xb0,%rsp
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L22:
  mov    $0xffffff31,%eax
  jmp    L12
L28:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_label: D69
type_infered: string
name: disassemble_data
arguments: data_label: D85
type_infered: string
name: disassemble_data
arguments: data_label: D61
type_infered: string
name: disassemble_data
arguments: data_label: D86
type_infered: string
name: disassemble_data
arguments: data_label: D13
type_infered: string
name: disassemble_data
arguments: data_label: D67
type_infered: string
name: disassemble_data
arguments: data_label: D27
type_infered: string
name: disassemble_data
arguments: data_label: D94
type_infered: string
name: disassemble_data
arguments: data_label: D33
type_infered: string
name: disassemble_data
arguments: data_label: D99
type_infered: string

tool: D69: w+

tool: D85: subfunc=set


tool: D61: &dname=%s


tool: D86: &qname=%s


tool: D13: &sn=%s


tool: D67: &mac=%s


tool: D27: &key=%s


tool: D94: &wanIP=%s


tool: D33: 1.1

tool: D99: &ver=%s


assistant: ```c
int create_update_name_wanip_postfile(char *postfile, char *dname, char *qname, char *wan_ip) {
  char serial_number[64], mac[32], key[64];
  FILE *fpt = NULL;
  if ((fpt = fopen(postfile, "w+")) == NULL) {
    return (-100 - 107);
  }
  fprintf(fpt, "subfunc=set\n");
  fprintf(fpt, "&dname=%s\n", dname);
  fprintf(fpt, "&qname=%s\n", qname);
  get_serial_number(serial_number, sizeof(serial_number));
  fprintf(fpt, "&sn=%s\n", serial_number);
  get_mac_address(mac, sizeof(mac));
  fprintf(fpt, "&mac=%s\n", mac);
  gen_encrypt_key(serial_number, mac, key, sizeof(key));
  fprintf(fpt, "&key=%s\n", key);
  fprintf(fpt, "&wanIP=%s\n", wan_ip);
  fprintf(fpt, "&ver=%s\n", "1.1");
  fclose(fpt);
  return 0;
}
```