user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<damerau_levenshtein_distance>:
  endbr64
  push   %r15
  mov    %rcx,%r15
  push   %r14
  mov    %rdx,%r14
  push   %r13
  push   %r12
  lea    0x2(%rcx),%r12
  push   %rbp
  lea    (%rdx,%rcx,1),%rbp
  push   %rbx
  mov    %rsi,%rbx
  mov    $0x8,%esi
  sub    $0x48,%rsp
  mov    %rdi,0x30(%rsp)
  mov    $0x100,%edi
  mov    %rdx,0x20(%rsp)
  mov    %r12,0x8(%rsp)
  call   <calloc@plt>
  test   %rax,%rax
  je     L66
  mov    %rax,%r13
  lea    0x2(%r14),%rdi
  lea    0x0(,%r12,8),%rax
  imul   %rax,%rdi
  mov    %rax,0x28(%rsp)
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L104
  mov    0x28(%rsp),%rsi
  mov    0x20(%rsp),%rdi
  mov    %rbp,(%rax)
  lea    (%rax,%rsi,1),%r10
  xor    %eax,%eax
  mov    %r10,%rdx
  nopl   0x0(%rax)
L71:
  mov    %rax,%rcx
  add    $0x1,%rax
  mov    %rbp,(%rdx)
  mov    %rcx,0x8(%rdx)
  add    %rsi,%rdx
  cmp    %rdi,%rax
  jbe    L71
  lea    0x1(%r15),%rax
  mov    %rax,0x38(%rsp)
  mov    0x28(%rsp),%rax
  lea    -0x10(%r12,%rax,1),%rcx
  xor    %eax,%eax
  nopl   0x0(%rax,%rax,1)
L29:
  mov    %rax,%rdx
  add    $0x1,%rax
  mov    %rbp,(%r12,%rax,8)
  mov    %rdx,0x10(%rcx,%rax,8)
  cmp    %rdx,%r15
  jne    L29
  cmpq   $0x0,0x20(%rsp)
  je     L65
  movq   $0x1,0x10(%rsp)
  mov    0x8(%rsp),%r9
  shl    $0x4,%r9
  add    %r12,%r9
  cs nopw 0x0(%rax,%rax,1)
L47:
  mov    0x10(%rsp),%rax
  mov    0x30(%rsp),%rcx
  xor    %edi,%edi
  movsbq -0x1(%rcx,%rax,1),%rbp
  mov    %rax,0x18(%rsp)
  mov    %rax,%rcx
  add    $0x1,%rax
  mov    %rax,0x10(%rsp)
  lea    -0x1(%rcx),%r14
  mov    $0x1,%eax
  test   %r15,%r15
  jne    L8
  jmp    L76
  nopl   0x0(%rax,%rax,1)
L73:
  mov    %rdi,%r11
  mov    $0x1,%ecx
L59:
  mov    0x8(%rsp),%rsi
  lea    (%r14,%rax,1),%rdx
  sub    %rdi,%rdx
  imul   %r8,%rsi
  sub    %r8,%rdx
  add    %rdi,%rsi
  mov    (%r9,%rax,8),%rdi
  add    (%r12,%rsi,8),%rdx
  lea    0x1(%rdi),%rsi
  mov    0x8(%r10,%rax,8),%rdi
  add    $0x1,%rdi
  cmp    %rdi,%rsi
  cmova  %rdi,%rsi
  cmp    %rsi,%rdx
  cmova  %rsi,%rdx
  add    (%r10,%rax,8),%rcx
  cmp    %rcx,%rdx
  cmova  %rcx,%rdx
  mov    %rdx,0x8(%r9,%rax,8)
  lea    0x1(%rax),%rdx
  cmp    %rax,%r15
  je     L76
  mov    %r11,%rdi
  mov    %rdx,%rax
L8:
  movsbq -0x1(%rbx,%rax,1),%rcx
  mov    0x0(%r13,%rcx,8),%r8
  cmp    %bpl,%cl
  jne    L73
  mov    %rax,%r11
  xor    %ecx,%ecx
  jmp    L59
  nop
L76:
  mov    0x28(%rsp),%rcx
  mov    0x18(%rsp),%rax
  add    %rcx,%r10
  mov    %rax,0x0(%r13,%rbp,8)
  add    %rcx,%r9
  cmp    0x20(%rsp),%rax
  jne    L47
L65:
  mov    0x20(%rsp),%rax
  mov    %r12,%rdi
  add    $0x1,%rax
  imul   0x8(%rsp),%rax
  add    0x38(%rsp),%rax
  mov    (%r12,%rax,8),%rbx
  call   <free@plt>
  mov    %r13,%rdi
  call   <free@plt>
  mov    %ebx,%eax
L60:
  add    $0x48,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L66:
  mov    $0xffffffff,%eax
  jmp    L60
L104:
  mov    %r13,%rdi
  call   <free@plt>
  or     $0xffffffff,%eax
  jmp    L60
```

assistant: ```c
int damerau_levenshtein_distance(const char *s1, const char *s2, size_t len1, size_t len2) {
  size_t infinite = len1 + len2;
  size_t cols = len2 + 2;
  size_t i, j, i1, j1;
  size_t db;
  size_t d1, d2, d3, d4, result;
  unsigned short cost;
  size_t *da = calloc(256, sizeof(size_t));
  if (!da) {
    return -1;
  }
  size_t *dist = malloc((len1 + 2) * cols * sizeof(size_t));
  if (!dist) {
    free(da);
    return -1;
  }
  dist[0] = infinite;
  for (i = 0; i <= len1; i++) {
    dist[((i + 1) * cols) + 0] = infinite;
    dist[((i + 1) * cols) + 1] = i;
  }
  for (i = 0; i <= len2; i++) {
    dist[i + 1] = infinite;
    dist[cols + i + 1] = i;
  }
  for (i = 1; i <= len1; i++) {
    db = 0;
    for (j = 1; j <= len2; j++) {
      i1 = da[(size_t)s2[j - 1]];
      j1 = db;
      if (s1[i - 1] == s2[j - 1]) {
        cost = 0;
        db = j;
      } else {
        cost = 1;
      }
      d1 = dist[(i * cols) + j] + cost;
      d2 = dist[((i + 1) * cols) + j] + 1;
      d3 = dist[(i * cols) + j + 1] + 1;
      d4 = dist[(i1 * cols) + j1] + (i - i1 - 1) + 1 + (j - j1 - 1);
      dist[((i + 1) * cols) + j + 1] = ((((d1) < (d2) ? (d1) : (d2))) < (((d3) < (d4) ? (d3) : (d4))) ? (((d1) < (d2) ? (d1) : (d2))) : (((d3) < (d4) ? (d3) : (d4))));
    }
    da[(size_t)s1[i - 1]] = i;
  }
  result = dist[((len1 + 1) * cols) + len2 + 1];
  free(dist);
  free(da);
  return result;
}
```