user: 请从给定的汇编指令推导出C源代码：

```asm
<print_syntax>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <print_banner@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rsi
  lea    D25(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D6(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D56(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D74(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D42(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D11(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D92(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D64(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D8(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D67(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D122(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D36(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D15(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  nop
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: tag: D25
datatype: string
name: retrieve_data
arguments: tag: D6
datatype: string
name: retrieve_data
arguments: tag: D56
datatype: string
name: retrieve_data
arguments: tag: D74
datatype: string
name: retrieve_data
arguments: tag: D42
datatype: string
name: retrieve_data
arguments: tag: D11
datatype: string
name: retrieve_data
arguments: tag: D92
datatype: string
name: retrieve_data
arguments: tag: D64
datatype: string
name: retrieve_data
arguments: tag: D8
datatype: string
name: retrieve_data
arguments: tag: D67
datatype: string
name: retrieve_data
arguments: tag: D122
datatype: string
name: retrieve_data
arguments: tag: D36
datatype: string
name: retrieve_data
arguments: tag: D15
datatype: string

tool: D25: Usage: %s [arguments]


tool: D6:  -h 			 print this message

tool: D56:  -a     		 print all available keys

tool: D74:  -i <nick> 		 Create a fresh RSA key pair and store it in

tool: D42:            		 $HOME/.chatstore under the given nickname


tool: D11:  -c <host> <port> 	 Open secure connection to <host> on <port>

tool: D92:                   	 Example: -c 'localhost 3300' 


tool: D64:  -n <nick> 		 Set nickname when connecting to server


tool: D8:  -l <port>        	 Listen on all local interfaces on the given

tool: D67:                		 port and wait for secure connections.


tool: D122:  -r <nick>  		 Change user's nick to the given one

tool: D36:              		 without changing the public key


tool: D15:  -v          		 Print version

assistant: ```c
void print_syntax(char *prog) {
  print_banner(prog);
  printf("Usage: %s [arguments]\n", prog);
  printf(" -h 	\t\t print this message\n");
  printf(" -a     \t\t print all available keys\n");
  printf(" -i <nick> \t\t Create a fresh RSA key pair and store it in\n");
  printf("           \t\t $HOME/.chatstore under the given nickname\n\n");
  printf(" -c <host> <port> \t Open secure connection to <host> on <port>\n");
  printf("                  \t Example: -c 'localhost 3300' \n\n");
  printf(" -n <nick> \t\t Set nickname when connecting to server\n\n");
  printf(" -l <port>        \t Listen on all local interfaces on the given\n");
  printf("               \t\t port and wait for secure connections.\n\n");
  printf(" -r <nick>  \t\t Change user's nick to the given one\n");
  printf("             \t\t without changing the public key\n\n");
  printf(" -v          \t\t Print version\n");
}
```