user: Converte this assembly snippet into its equivalent C code:

```asm
<usage>:
  endbr64
  push   %rbx
  lea    D91(%rip),%rbx
  mov    %rbx,%rdx
  lea    D4(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    %rbx,%rdx
  lea    D87(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    %rbx,%rdx
  lea    D15(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    %rbx,%rdx
  lea    D43(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    %rbx,%rdx
  lea    D20(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    %rbx,%rdx
  lea    D99(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    %rbx,%rdx
  lea    D55(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    %rbx,%rdx
  lea    D44(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    %rbx,%rdx
  lea    D35(%rip),%rsi
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <eprintf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
```

tool_calls: name: retrieve_data
arguments: label: D91
type_guessed: string
name: retrieve_data
arguments: label: D4
type_guessed: string
name: retrieve_data
arguments: label: D87
type_guessed: string
name: retrieve_data
arguments: label: D15
type_guessed: string
name: retrieve_data
arguments: label: D43
type_guessed: string
name: retrieve_data
arguments: label: D20
type_guessed: string
name: retrieve_data
arguments: label: D99
type_guessed: string
name: retrieve_data
arguments: label: D55
type_guessed: string
name: retrieve_data
arguments: label: D44
type_guessed: string
name: retrieve_data
arguments: label: D35
type_guessed: string

tool: D91: usage

tool: D4: %s: usage: charade [options] [command [arg ...]]


tool: D87: %s: Options:


tool: D15: %s:   -c          Generate C-shell commands on stdout.


tool: D43: %s:   -s          Generate Bourne shell commands on stdout.


tool: D20: %s:   -k          Kill the current agent.


tool: D99: %s:   -d          Don't fork.


tool: D55: %s:   -v [-v ...] More trace output.


tool: D44: %s:   -a socket   Bind agent socket to given name.


tool: D35: %s:   --copyright Print out copyright message & licence.


assistant: ```c
void usage(void) {
  eprintf(0,
          "%s: "
          "usage: charade [options] [command [arg ...]]\n",
          __func__);
  eprintf(0,
          "%s: "
          "Options:\n",
          __func__);
  eprintf(0,
          "%s: "
          "  -c          Generate C-shell commands on stdout.\n",
          __func__);
  eprintf(0,
          "%s: "
          "  -s          Generate Bourne shell commands on stdout.\n",
          __func__);
  eprintf(0,
          "%s: "
          "  -k          Kill the current agent.\n",
          __func__);
  eprintf(0,
          "%s: "
          "  -d          Don't fork.\n",
          __func__);
  eprintf(0,
          "%s: "
          "  -v [-v ...] More trace output.\n",
          __func__);
  eprintf(0,
          "%s: "
          "  -a socket   Bind agent socket to given name.\n",
          __func__);
  eprintf(0,
          "%s: "
          "  --copyright Print out copyright message & licence.\n",
          __func__);
  exit(1);
}
```