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

```asm
<unimplemented>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x420,%rsp
  mov    %edi,-0x414(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x410(%rbp),%rax
  lea    D14(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  lea    D1(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%edx
  lea    -0x410(%rbp),%rsi
  mov    -0x414(%rbp),%eax
  mov    $0x0,%ecx
  mov    %eax,%edi
  call   <send@plt>
  lea    -0x410(%rbp),%rax
  lea    D26(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%edx
  lea    -0x410(%rbp),%rsi
  mov    -0x414(%rbp),%eax
  mov    $0x0,%ecx
  mov    %eax,%edi
  call   <send@plt>
  lea    -0x410(%rbp),%rax
  lea    D16(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%edx
  lea    -0x410(%rbp),%rsi
  mov    -0x414(%rbp),%eax
  mov    $0x0,%ecx
  mov    %eax,%edi
  call   <send@plt>
  lea    -0x410(%rbp),%rax
  lea    D22(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%edx
  lea    -0x410(%rbp),%rsi
  mov    -0x414(%rbp),%eax
  mov    $0x0,%ecx
  mov    %eax,%edi
  call   <send@plt>
  lea    -0x410(%rbp),%rax
  lea    D79(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%edx
  lea    -0x410(%rbp),%rsi
  mov    -0x414(%rbp),%eax
  mov    $0x0,%ecx
  mov    %eax,%edi
  call   <send@plt>
  lea    -0x410(%rbp),%rax
  lea    D13(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%edx
  lea    -0x410(%rbp),%rsi
  mov    -0x414(%rbp),%eax
  mov    $0x0,%ecx
  mov    %eax,%edi
  call   <send@plt>
  lea    -0x410(%rbp),%rax
  lea    D63(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%edx
  lea    -0x410(%rbp),%rsi
  mov    -0x414(%rbp),%eax
  mov    $0x0,%ecx
  mov    %eax,%edi
  call   <send@plt>
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L2
  call   <__stack_chk_fail@plt>
L2:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: tag: D14
data_type: string
name: extract_symbolic_data
arguments: tag: D1
data_type: string
name: extract_symbolic_data
arguments: tag: D26
data_type: string
name: extract_symbolic_data
arguments: tag: D16
data_type: string
name: extract_symbolic_data
arguments: tag: D22
data_type: string
name: extract_symbolic_data
arguments: tag: D79
data_type: string
name: extract_symbolic_data
arguments: tag: D13
data_type: string
name: extract_symbolic_data
arguments: tag: D63
data_type: string

tool: D14: HTTP/1.0 501 Method Not Implemented


tool: D1: Server: tinyhttpd/0.1.0


tool: D26: Content-Type: text/html


tool: D16: 


tool: D22: <HTML><HEAD><TITLE>Method Not Implemented


tool: D79: </TITLE></HEAD>


tool: D13: <BODY><P>HTTP request method not supported.


tool: D63: </BODY></HTML>


assistant: ```c
void unimplemented(int fd) {
  char buf[1024];
  sprintf(buf, "HTTP/1.0 501 Method Not Implemented\r\n");
  sprintf(buf, "Server: tinyhttpd/0.1.0\r\n");
  send(fd, buf, strlen(buf), 0);
  sprintf(buf, "Content-Type: text/html\r\n");
  send(fd, buf, strlen(buf), 0);
  sprintf(buf, "\r\n");
  send(fd, buf, strlen(buf), 0);
  sprintf(buf, "<HTML><HEAD><TITLE>Method Not Implemented\r\n");
  send(fd, buf, strlen(buf), 0);
  sprintf(buf, "</TITLE></HEAD>\r\n");
  send(fd, buf, strlen(buf), 0);
  sprintf(buf, "<BODY><P>HTTP request method not supported.\r\n");
  send(fd, buf, strlen(buf), 0);
  sprintf(buf, "</BODY></HTML>\r\n");
  send(fd, buf, strlen(buf), 0);
}
```