user: 请从给定的汇编指令推导出C源代码:

```asm
<mkSetfragRequest>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0xf88,%rsp
  mov    %rdi,%rbp
  mov    %rsi,0x10(%rsp)
  mov    %rdx,0x18(%rsp)
  mov    %rcx,0x20(%rsp)
  mov    %r8,0x28(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0x2f78(%rsp)
  xor    %eax,%eax
  mov    $0x2,%edx
  mov    $0x1a,%esi
  call   <ccnl_ccnb_mkHeader@plt>
  mov    %eax,%ebx
  movslq %eax,%rdi
  add    %rbp,%rdi
  mov    $0x2,%edx
  mov    $0xe,%esi
  call   <ccnl_ccnb_mkHeader@plt>
  add    %eax,%ebx
  lea    0xfd0(%rsp),%r13
  lea    D3(%rip),%rcx
  mov    $0x2,%edx
  mov    $0xf,%esi
  mov    %r13,%rdi
  call   <ccnl_ccnb_mkStrBlob@plt>
  mov    %rax,%r14
  movslq %eax,%rdi
  add    %r13,%rdi
  lea    D7(%rip),%rcx
  mov    $0x2,%edx
  mov    $0xf,%esi
  call   <ccnl_ccnb_mkStrBlob@plt>
  add    %eax,%r14d
  movslq %r14d,%rdi
  add    %r13,%rdi
  lea    D4(%rip),%r12
  mov    %r12,%rcx
  mov    $0x2,%edx
  mov    $0xf,%esi
  call   <ccnl_ccnb_mkStrBlob@plt>
  add    %eax,%r14d
  mov    %r14d,0xc(%rsp)
  lea    0x800(%rsp),%r14
  mov    $0x2,%edx
  mov    $0x50,%esi
  mov    %r14,%rdi
  call   <ccnl_ccnb_mkHeader@plt>
  mov    %eax,%r15d
  movslq %eax,%rdi
  add    %r14,%rdi
  mov    %r12,%rcx
  mov    $0x2,%edx
  mov    $0x49,%esi
  call   <ccnl_ccnb_mkStrBlob@plt>
  lea    (%r15,%rax,1),%r12d
  movslq %r12d,%rdi
  add    %r14,%rdi
  mov    0x10(%rsp),%rcx
  mov    $0x2,%edx
  mov    $0x4a,%esi
  call   <ccnl_ccnb_mkStrBlob@plt>
  add    %eax,%r12d
  movslq %r12d,%rdi
  add    %r14,%rdi
  mov    0x18(%rsp),%rcx
  mov    $0x2,%edx
  mov    $0x182bd,%esi
  call   <ccnl_ccnb_mkStrBlob@plt>
  add    %eax,%r12d
  movslq %r12d,%rdi
  add    %r14,%rdi
  mov    0x20(%rsp),%rcx
  mov    $0x2,%edx
  mov    $0x182c2,%esi
  call   <ccnl_ccnb_mkStrBlob@plt>
  add    %eax,%r12d
  movslq %r12d,%rax
  movb   $0x0,0x800(%rsp,%rax,1)
  lea    0x30(%rsp),%r15
  mov    $0x2,%edx
  mov    $0x40,%esi
  mov    %r15,%rdi
  call   <ccnl_ccnb_mkHeader@plt>
  mov    %eax,0x10(%rsp)
  movslq %eax,%rdi
  add    %r15,%rdi
  lea    0x1(%r12),%r8d
  mov    %r14,%rcx
  mov    $0x2,%edx
  mov    $0x13,%esi
  call   <ccnl_ccnb_mkBlob@plt>
  add    0x10(%rsp),%eax
  movslq %eax,%rdx
  movb   $0x0,0x30(%rsp,%rdx,1)
  mov    0xc(%rsp),%r14d
  movslq %r14d,%rdx
  lea    0x0(%r13,%rdx,1),%rdi
  lea    0x1(%rax),%r8d
  mov    %r15,%rcx
  mov    $0x2,%edx
  mov    $0xf,%esi
  call   <ccnl_ccnb_mkBlob@plt>
  lea    (%r14,%rax,1),%r12d
  mov    0x28(%rsp),%rsi
  test   %rsi,%rsi
  je     L7
  mov    %r13,%rdx
  movslq %ebx,%rdi
  add    %rbp,%rdi
  mov    %r12d,%ecx
  call   <add_signature@plt>
  add    %eax,%ebx
L7:
  lea    0xfd0(%rsp),%rsi
  movslq %ebx,%rdi
  add    %rbp,%rdi
  mov    %r12d,%edx
  call   <memcpy@plt>
  add    %r12d,%ebx
  movslq %ebx,%rax
  movb   $0x0,0x0(%rbp,%rax,1)
  lea    0x1(%rbx),%eax
  cltq
  movb   $0x0,0x0(%rbp,%rax,1)
  lea    0x2(%rbx),%eax
  mov    0x2f78(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L11
  add    $0x2f88,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L11:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: label: D3
data_type: string
name: parse_data
arguments: label: D7
data_type: string
name: parse_data
arguments: label: D4
data_type: string

tool: D3: ccnx

tool: 

tool: D4: setfrag

assistant: ```c
int mkSetfragRequest(unsigned char *out, char *faceid, char *frag, char *mtu, char *private_key_path) {
  int len = 0, len1 = 0, len2 = 0, len3 = 0;
  unsigned char out1[8096];
  unsigned char contentobj[2000];
  unsigned char faceinst[2000];
  len = ccnl_ccnb_mkHeader(out, 26, 2);
  len += ccnl_ccnb_mkHeader(out + len, 14, 2);
  len1 += ccnl_ccnb_mkStrBlob(out1 + len1, 15, 2, "ccnx");
  len1 += ccnl_ccnb_mkStrBlob(out1 + len1, 15, 2, "");
  len1 += ccnl_ccnb_mkStrBlob(out1 + len1, 15, 2, "setfrag");
  len3 = ccnl_ccnb_mkHeader(faceinst, 80, 2);
  len3 += ccnl_ccnb_mkStrBlob(faceinst + len3, 73, 2, "setfrag");
  len3 += ccnl_ccnb_mkStrBlob(faceinst + len3, 74, 2, faceid);
  len3 += ccnl_ccnb_mkStrBlob(faceinst + len3, 99005, 2, frag);
  len3 += ccnl_ccnb_mkStrBlob(faceinst + len3, 99010, 2, mtu);
  faceinst[len3++] = 0;
  len2 = ccnl_ccnb_mkHeader(contentobj, 64, 2);
  len2 += ccnl_ccnb_mkBlob(contentobj + len2, 19, 2, (char *)faceinst, len3);
  contentobj[len2++] = 0;
  len1 += ccnl_ccnb_mkBlob(out1 + len1, 15, 2, (char *)contentobj, len2);
  if (private_key_path)
    len += add_signature(out + len, private_key_path, out1, len1);
  memcpy(out + len, out1, len1);
  len += len1;
  out[len++] = 0;
  out[len++] = 0;
  return len;
}
```