user: 请将以下的汇编代码转换成C语言代码:

```asm
<refscpy>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x50,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  movzbl (%rdx),%eax
  test   %al,%al
  je     L192
  mov    %esi,%ebx
  mov    %rdx,%rcx
  lea    D9(%rip),%r13
  jmp    L233
L49:
  mov    %rbp,%rdx
L318:
  sub    $0x1,%ebx
  je     L253
  add    $0x1,%rbp
  add    $0x1,%r12
  mov    %al,-0x1(%r12)
  movzbl 0x0(%rbp),%eax
  test   $0xdf,%al
  je     L341
  cmp    $0x2c,%al
  je     L341
L40:
  cmp    $0x2e,%al
  je     L49
  cmp    $0x40,%al
  cmove  %rbp,%rsi
  jmp    L318
L52:
  mov    %rsp,%rsi
  mov    %r12,%rdi
  call   <strcpy@plt>
  movslq %r14d,%rax
  add    %rax,%r12
  sub    %r14d,%ebx
  jmp    L42
L269:
  mov    %rcx,%rbp
  jmp    L42
L47:
  movzbl (%rcx),%eax
  test   %al,%al
  je     L331
  sub    $0x1,%ebx
  test   %ebx,%ebx
  jle    L70
  add    $0x1,%rcx
  add    $0x1,%rdi
  mov    %al,-0x1(%rdi)
  cmp    $0x3e,%al
  jne    L47
  jmp    L174
L268:
  mov    %rdi,%r12
  jmp    L253
L192:
  mov    %rdi,%r12
  jmp    L253
L307:
  mov    %rdi,%r12
  jmp    L253
L70:
  mov    %rdi,%r12
L253:
  movb   $0x0,(%r12)
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L151
  add    $0x50,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L67:
  mov    %rdi,%r12
  jmp    L253
L341:
  test   %rdx,%rdx
  je     L42
  test   %rsi,%rsi
  jne    L42
  movb   $0x0,(%rdx)
  movb   $0x0,(%r12)
  add    $0x1,%rdx
  mov    %rsp,%r14
  mov    %r13,%rsi
  mov    %r14,%rdi
  mov    $0x0,%eax
  call   <sprintf@plt>
  mov    %r14,%rdi
  call   <strlen@plt>
  mov    %rax,%r14
  cmp    %eax,%ebx
  jg     L52
L42:
  sub    $0x1,%ebx
  test   %ebx,%ebx
  jle    L253
  lea    0x1(%r12),%rdi
  movb   $0x3e,(%r12)
  mov    %rbp,%rcx
L174:
  movzbl (%rcx),%eax
  cmp    $0x20,%al
  je     L309
  cmp    $0x2c,%al
  jne    L30
L309:
  add    $0x1,%rcx
  movzbl (%rcx),%eax
  cmp    $0x20,%al
  je     L309
  cmp    $0x2c,%al
  je     L309
L30:
  test   %al,%al
  je     L339
  sub    $0x1,%ebx
  test   %ebx,%ebx
  jle    L339
  movb   $0x20,(%rdi)
  lea    0x1(%rdi),%rdi
L339:
  movzbl (%rcx),%eax
  test   %al,%al
  je     L268
L233:
  cmp    $0x3c,%al
  je     L47
  sub    $0x1,%ebx
  test   %ebx,%ebx
  jle    L307
  lea    0x1(%rdi),%r12
  movb   $0x3c,(%rdi)
  movzbl (%rcx),%eax
  test   $0xdf,%al
  je     L269
  cmp    $0x2c,%al
  je     L269
  mov    %rcx,%rbp
  mov    $0x0,%esi
  mov    $0x0,%edx
  jmp    L40
L331:
  test   %ebx,%ebx
  jle    L67
  movzbl (%rcx),%eax
  jmp    L30
L151:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_label: D9
datatype: string

tool: D9: %s@%s.UUCP

assistant: ```c
void refscpy(dest, destsize, src) register char *dest, *src;
register int destsize;
{
  register char *dot, *at, *beg;
  char tmpbuf[64];
  while (*src) {
    if (*src != '<') {
      if (--destsize <= 0)
        break;
      *dest++ = '<';
      at = dot = ((char *)0);
      beg = src;
      while (*src && *src != ' ' && *src != ',') {
        if (*src == '.')
          dot = src;
        else if (*src == '@')
          at = src;
        if (--destsize <= 0)
          break;
        *dest++ = *src++;
      }
      if (destsize <= 0)
        break;
      if (dot && !at) {
        int len;
        *dest = *dot++ = '\0';
        sprintf(tmpbuf, "%s@%s.UUCP", dot, beg);
        len = strlen(tmpbuf);
        if (destsize > len) {
          strcpy(dest, tmpbuf);
          dest = dest + len;
          destsize -= len;
        }
      }
      if (--destsize <= 0)
        break;
      *dest++ = '>';
    } else {
      while (*src && --destsize > 0 && (*dest++ = *src++) != '>')
        ;
      if (destsize <= 0)
        break;
    }
    while (*src == ' ' || *src == ',')
      src++;
    if (*src && --destsize > 0)
      *dest++ = ' ';
  }
  *dest = '\0';
}
```