user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<escape_char>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %rdx,-0x48(%rbp)
  mov    %ecx,-0x4c(%rbp)
  mov    %r8,-0x58(%rbp)
  mov    %r9,-0x60(%rbp)
  mov    0x10(%rbp),%rax
  mov    %rax,-0x68(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x2c(%rbp)
  movq   $0x0,-0x10(%rbp)
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <assert@plt>
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x18(%rbp)
  jmp    L10
L106:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L23
  addq   $0x1,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  cmp    -0x40(%rbp),%rax
  jne    L159
  mov    D22(%rip),%rax
  mov    (%rax),%edx
  mov    -0x68(%rbp),%rax
  mov    %edx,(%rax)
  jmp    L68
L159:
  mov    -0x68(%rbp),%rdi
  mov    -0x60(%rbp),%rcx
  mov    -0x4c(%rbp),%edx
  lea    -0x20(%rbp),%rsi
  mov    -0x18(%rbp),%rax
  mov    %rdi,%r8
  mov    %rax,%rdi
  call   <escape_char_1@plt>
  mov    %eax,-0x28(%rbp)
  mov    -0x20(%rbp),%rax
  sub    $0x1,%rax
  mov    %rax,-0x18(%rbp)
  jmp    L132
L23:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,-0x28(%rbp)
L132:
  cmpl   $0x0,-0x4c(%rbp)
  je     L61
  mov    -0x28(%rbp),%eax
  mov    %eax,-0x2c(%rbp)
  cmpl   $0x0,-0x2c(%rbp)
  je     L128
  mov    D49(%rip),%rax
  mov    (%rax),%edx
  mov    -0x60(%rbp),%rax
  mov    %edx,(%rax)
  jmp    L128
L61:
  movl   $0x0,-0x24(%rbp)
  mov    D31(%rip),%rax
  mov    (%rax),%eax
  shr    $0x8,%eax
  mov    %eax,%edx
  mov    -0x2c(%rbp),%eax
  cmp    %eax,%edx
  jae    L115
  movl   $0x1,-0x24(%rbp)
L115:
  mov    -0x2c(%rbp),%eax
  shl    $0x8,%eax
  mov    %eax,-0x2c(%rbp)
  mov    D31(%rip),%rax
  mov    (%rax),%eax
  mov    -0x28(%rbp),%ecx
  sub    %ecx,%eax
  mov    %eax,%edx
  mov    -0x2c(%rbp),%eax
  cmp    %eax,%edx
  jae    L114
  movl   $0x1,-0x24(%rbp)
L114:
  mov    -0x28(%rbp),%eax
  add    %eax,-0x2c(%rbp)
  cmpl   $0x0,-0x24(%rbp)
  je     L128
  mov    D49(%rip),%rax
  mov    (%rax),%edx
  mov    -0x60(%rbp),%rax
  mov    %edx,(%rax)
L128:
  addq   $0x1,-0x10(%rbp)
  addq   $0x1,-0x18(%rbp)
L10:
  mov    -0x18(%rbp),%rax
  cmp    -0x40(%rbp),%rax
  je     L68
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L106
L68:
  cmpq   $0x0,-0x58(%rbp)
  je     L136
  cmpq   $0x1,-0x10(%rbp)
  seta   %al
  movzbl %al,%edx
  mov    -0x58(%rbp),%rax
  mov    %edx,(%rax)
L136:
  mov    -0x18(%rbp),%rax
  cmp    -0x40(%rbp),%rax
  jne    L66
  mov    -0x48(%rbp),%rax
  mov    -0x18(%rbp),%rdx
  mov    %rdx,(%rax)
  jmp    L153
L66:
  mov    -0x18(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x48(%rbp),%rax
  mov    %rdx,(%rax)
L153:
  mov    -0x2c(%rbp),%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L94
  call   <__stack_chk_fail@plt>
L94:
  leave
  ret
```

assistant: ```c
int escape_char(char *start, char *limit, char **const end, int is_wide, int *const multi, int *const warn, int *const err) {
  int ret = 0;
  char *i;
  size_t n = 0;
  assert(limit);
  for (i = start; i != limit && *i; i++) {
    int this;
    if (*i == '\\') {
      char *escfin;
      i++;
      if (i == limit) {
        *err = EILSEQ;
        break;
      }
      this = escape_char_1(i, &escfin, is_wide, warn, err);
      i = escfin - 1;
    } else {
      this = *i;
    }
    if (is_wide) {
      ret = this;
      if (ret)
        *warn = E2BIG;
    } else {
      int of = 0;
      if ((unsigned)ret > UINT_MAX / 256u)
        of = 1;
      ret *= 256u;
      if ((unsigned)ret > UINT_MAX - this)
        of = 1;
      ret += this;
      if (of)
        *warn = E2BIG;
    }
    n++;
  }
  if (multi)
    *multi = n > 1;
  if (i == limit)
    *end = i;
  else
    *end = i - 1;
  return ret;
}
```