user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<GetXPrintUrl>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x148,%rsp
  mov    %rdi,%rbp
  mov    %rsi,0x18(%rsp)
  mov    %rdx,0x20(%rsp)
  mov    %rcx,%r13
  mov    %fs:0x28,%rax
  mov    %rax,0x138(%rsp)
  xor    %eax,%eax
  mov    $0x7,%edx
  lea    D37(%rip),%rsi
  call   <strncmp@plt>
  mov    %rax,%rdx
  lea    0x7(%rbp),%rax
  test   %rdx,%rdx
  cmove  %rax,%rbp
  mov    $0x2f,%esi
  mov    %rbp,%rdi
  call   <strchr@plt>
  mov    %rax,%r12
  mov    $0x0,%r14d
  test   %rax,%rax
  je     L43
  mov    %eax,%r14d
  sub    %ebp,%r14d
  lea    0x1(%rax),%rbx
  mov    %r14d,%edx
  lea    D39(%rip),%rsi
  mov    %rbp,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  jne    L145
  mov    %rbp,%r12
  mov    %rbx,%rbp
  mov    $0x0,%r14d
L43:
  mov    $0x4,%edx
  lea    D34(%rip),%rsi
  mov    %rbp,%rdi
  call   <strncmp@plt>
  mov    %rax,%rdx
  lea    0x4(%rbp),%rax
  test   %rdx,%rdx
  cmove  %rax,%rbp
  lea    0x30(%rsp),%rbx
  mov    %r13,%rcx
  mov    %rbp,%rdx
  mov    $0x100,%esi
  mov    %rbx,%rdi
  call   <MyBestHostname@plt>
  mov    %rax,%r15
  mov    %rax,0x28(%rsp)
  mov    %rbx,%rdi
  call   <gethostbyname@plt>
  mov    (%rax),%rax
  mov    %rax,0x10(%rsp)
  mov    $0x2e,%esi
  mov    %r15,%rdi
  call   <strchr@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L176
  sub    %r15d,%ebp
L46:
  mov    0x10(%rsp),%rdi
  call   <strlen@plt>
  mov    %eax,0x4(%rsp)
  mov    $0x0,%r13d
  mov    0x18(%rsp),%rax
  test   %rax,%rax
  je     L59
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%r13d
L59:
  mov    $0x0,%r15d
  mov    0x20(%rsp),%rax
  test   %rax,%rax
  je     L106
  mov    %rax,%rdi
  call   <strlen@plt>
  lea    0x6(%rax),%r15d
L106:
  lea    0x2(%r14,%r13,1),%eax
  add    0x4(%rsp),%eax
  add    %ebp,%eax
  lea    0x7(%r15,%rax,1),%edi
  call   <malloc@plt>
  mov    %rax,%rbx
  movq   $0x0,0x8(%rsp)
  test   %rax,%rax
  je     L135
  mov    %rax,0x8(%rsp)
  lea    D37(%rip),%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
  add    $0x7,%rbx
  test   %r13d,%r13d
  jne    L41
L97:
  test   %r14d,%r14d
  jne    L9
L35:
  cmpl   $0x0,0x4(%rsp)
  jne    L144
L125:
  test   %ebp,%ebp
  jne    L80
L182:
  test   %r15d,%r15d
  jne    L28
  movb   $0x0,(%rbx)
L135:
  mov    0x138(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L134
  mov    0x8(%rsp),%rax
  add    $0x148,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L145:
  mov    %rbp,%r12
  mov    %rbx,%rbp
  jmp    L43
L176:
  mov    0x28(%rsp),%rdi
  call   <strlen@plt>
  mov    %eax,%ebp
  jmp    L46
L41:
  mov    0x18(%rsp),%rsi
  mov    %rbx,%rdi
  call   <strcpy@plt>
  movslq %r13d,%r13
  add    %rbx,%r13
  lea    0x1(%r13),%rbx
  movb   $0x40,0x0(%r13)
  jmp    L97
L9:
  lea    0x1(%r14),%edx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <strncpy@plt>
  movslq %r14d,%r14
  lea    0x1(%rbx,%r14,1),%rbx
  jmp    L35
L144:
  mov    0x10(%rsp),%rsi
  mov    %rbx,%rdi
  call   <strcpy@plt>
  movslq 0x4(%rsp),%rax
  add    %rax,%rbx
  jmp    L125
L80:
  mov    %ebp,%edx
  mov    0x28(%rsp),%rsi
  mov    %rbx,%rdi
  call   <strncpy@plt>
  movslq %ebp,%rbp
  add    %rbp,%rbx
  jmp    L182
L28:
  mov    0x20(%rsp),%rdx
  lea    D19(%rip),%rsi
  mov    %rbx,%rdi
  call   <sprintf@plt>
  jmp    L135
L134:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_tag: D37
type: string
name: disassemble_data
arguments: data_tag: D39
type: string
name: disassemble_data
arguments: data_tag: D34
type: string
name: disassemble_data
arguments: data_tag: D19
type: string

tool: D37: xprint:

tool: D39: local

tool: D34: unix

tool: D19: ;auth=%s

assistant: ```c
char *GetXPrintUrl(char *display_name, char *printer, char *auth, char *dest_url) {
  char *dpy_name, *proto = NULL;
  char *url, *ptr;
  char *name;
  struct hostent *host;
  int len, proto_len, dpy_len, name_len, auth_len, printer_len;
  char hostname[256 + 1];
  len = 7;
  if (strncmp(display_name, "xprint:", 7) == 0)
    dpy_name = display_name + 7;
  else
    dpy_name = display_name;
  ptr = strchr(dpy_name, '/');
  if (ptr != NULL) {
    proto = dpy_name;
    proto_len = ptr - dpy_name;
    dpy_name = ptr + 1;
    if (strncmp(proto, "local", proto_len) == 0)
      proto_len = 0;
  } else
    proto_len = 0;
  if (strncmp(dpy_name, "unix", 4) == 0)
    dpy_name += 4;
  dpy_name = MyBestHostname(hostname, 256, dpy_name, dest_url);
  host = gethostbyname(hostname);
  name = host->h_name;
  ptr = strchr(dpy_name, '.');
  if (ptr != NULL)
    dpy_len = ptr - dpy_name;
  else
    dpy_len = strlen(dpy_name);
  name_len = strlen(name);
  printer_len = printer ? strlen(printer) : 0;
  auth_len = auth == NULL ? 0 : 6 + strlen(auth);
  len += printer_len + 1 + proto_len + 1 + name_len + dpy_len + auth_len;
  url = ptr = (char *)malloc(len);
  if (url == NULL)
    return NULL;
  strcpy(ptr, "xprint:");
  ptr += 7;
  if (printer_len != 0) {
    strcpy(ptr, printer);
    ptr += printer_len;
    *ptr++ = '@';
  }
  if (proto_len != 0) {
    strncpy(ptr, proto, proto_len + 1);
    ptr += proto_len + 1;
  }
  if (name_len != 0) {
    strcpy(ptr, name);
    ptr += name_len;
  }
  if (dpy_len != 0) {
    strncpy(ptr, dpy_name, dpy_len);
    ptr += dpy_len;
  }
  if (auth_len != 0)
    sprintf(ptr, ";auth=%s", auth);
  else
    *ptr = '\0';
  return url;
}
```