user: 请将以下的汇编代码转换成C语言代码:

```asm
<abs2rel>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %rdx,-0x48(%rbp)
  mov    %rcx,-0x50(%rbp)
  mov    -0x50(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  je     L360
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,%eax
  cmp    %rax,-0x50(%rbp)
  jbe    L188
  mov    -0x38(%rbp),%rdx
  mov    -0x48(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
  jmp    L81
L360:
  mov    -0x40(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L148
  cmpq   $0x0,-0x50(%rbp)
  jne    L202
L148:
  mov    D11(%rip),%rax
  mov    (%rax),%edx
  mov    D12(%rip),%rax
  mov    %edx,(%rax)
  mov    $0x0,%eax
  jmp    L204
L202:
  cmpq   $0x1,-0x50(%rbp)
  je     L297
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x28(%rbp)
  mov    -0x40(%rbp),%rax
  mov    %rax,-0x20(%rbp)
  jmp    L32
L271:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L10
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x18(%rbp)
L10:
  addq   $0x1,-0x28(%rbp)
  addq   $0x1,-0x20(%rbp)
L32:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L103
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L103
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%edx
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  je     L271
L103:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L333
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L215
  mov    -0x28(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L215
L333:
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L56
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L215
  mov    -0x20(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L215
L56:
  mov    -0x48(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x2e,(%rax)
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  je     L273
  mov    -0x28(%rbp),%rax
  sub    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L121
L273:
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x2f,(%rax)
L121:
  mov    -0x10(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  ja     L365
  mov    -0x10(%rbp),%rax
  movb   $0x0,(%rax)
  jmp    L81
L215:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L118
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  je     L150
L118:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L119
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L119
L150:
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x18(%rbp)
L119:
  mov    -0x48(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x18(%rbp),%rax
  sub    -0x38(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x20(%rbp)
  jmp    L180
L8:
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L299
  mov    -0x20(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L299
  mov    -0x20(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  je     L299
  mov    -0x10(%rbp),%rax
  add    $0x3,%rax
  cmp    %rax,-0x8(%rbp)
  jb     L316
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x2e,(%rax)
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x2e,(%rax)
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x2f,(%rax)
L299:
  addq   $0x1,-0x20(%rbp)
L180:
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L8
  mov    -0x10(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  ja     L45
  mov    -0x10(%rbp),%rax
  movb   $0x0,(%rax)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L244
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  cmp    %rax,-0x8(%rbp)
  jb     L240
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    -0x10(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
  jmp    L81
L244:
  subq   $0x1,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  movb   $0x0,(%rax)
L81:
  mov    -0x48(%rbp),%rax
  jmp    L204
L188:
  nop
  jmp    L272
L297:
  nop
  jmp    L272
L365:
  nop
  jmp    L272
L316:
  nop
  jmp    L272
L45:
  nop
  jmp    L272
L240:
  nop
L272:
  mov    D32(%rip),%rax
  mov    (%rax),%edx
  mov    D12(%rip),%rax
  mov    %edx,(%rax)
  mov    $0x0,%eax
L204:
  leave
  ret
```

assistant: ```c
char *abs2rel(const char *path, const char *base, char *result, const size_t size) {
  const char *pp, *bp, *branch;
  const char *endp = result + size - 1;
  char *rp;
  if (*path != '/') {
    if ((unsigned int)strlen(path) >= size)
      goto erange;
    strcpy(result, path);
    goto finish;
  } else if (*base != '/' || !size) {
    errno = EINVAL;
    return (NULL);
  } else if (size == 1)
    goto erange;
  branch = path;
  for (pp = path, bp = base; *pp && *bp && *pp == *bp; pp++, bp++)
    if (*pp == '/')
      branch = pp;
  if ((*pp == 0 || (*pp == '/' && *(pp + 1) == 0)) && (*bp == 0 || (*bp == '/' && *(bp + 1) == 0))) {
    rp = result;
    *rp++ = '.';
    if (*pp == '/' || *(pp - 1) == '/')
      *rp++ = '/';
    if (rp > endp)
      goto erange;
    *rp = 0;
    goto finish;
  }
  if ((*pp == 0 && *bp == '/') || (*pp == '/' && *bp == 0))
    branch = pp;
  rp = result;
  for (bp = base + (branch - path); *bp; bp++)
    if (*bp == '/' && *(bp + 1) != 0 && *(bp + 1) != '/') {
      if (rp + 3 > endp)
        goto erange;
      *rp++ = '.';
      *rp++ = '.';
      *rp++ = '/';
    }
  if (rp > endp)
    goto erange;
  *rp = 0;
  if (*branch) {
    if (rp + (int)strlen(branch + 1) > endp)
      goto erange;
    strcpy(rp, branch + 1);
  } else
    *--rp = 0;
finish:
  return result;
erange:
  errno = ERANGE;
  return (NULL);
}
```