user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<getpath>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  sub    $0x98,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x88(%rsp)
  xor    %eax,%eax
  cmpb   $0x2f,(%rdi)
  mov    %edi,%eax
  je     L8
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <alloc@plt>
  cltq
  mov    %rax,0x8(%rsp)
  movb   $0x0,(%rax)
  xor    %eax,%eax
  call   <setexit@plt>
  mov    0x8(%rsp),%rdi
  cmpb   $0x0,(%rdi)
  jne    L85
  lea    0x8(%rsp),%r14
  lea    0x30(%rsp),%r15
  lea    D24(%rip),%r12
  lea    0x10(%rsp),%rbx
  lea    0x14(%rsp),%r13
  nopl   0x0(%rax)
L17:
  mov    %r15,%rsi
  lea    D28(%rip),%rdi
  xor    %eax,%eax
  call   <stat@plt>
  xor    %esi,%esi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <open@plt>
  mov    %eax,%ebp
  test   %eax,%eax
  js     L36
  nopw   0x0(%rax,%rax,1)
L13:
  xor    %eax,%eax
  mov    $0x10,%edx
  mov    %rbx,%rsi
  mov    %ebp,%edi
  call   <read@plt>
  cmp    $0xf,%eax
  jle    L89
  mov    0x34(%rsp),%eax
  cmp    %eax,0x10(%rsp)
  jne    L13
L4:
  xor    %eax,%eax
  mov    %ebp,%edi
  call   <close@plt>
  cmpl   $0x1,0x10(%rsp)
  jne    L40
  mov    %r14,%rsi
  mov    %r13,%rdi
  xor    %eax,%eax
  call   <ckroot@plt>
L40:
  mov    0x8(%rsp),%rsi
  mov    %r13,%rdi
  xor    %eax,%eax
  call   <dircat@plt>
  mov    %r14,%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <rplstr@plt>
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <chdir@plt>
  jmp    L17
  nopw   0x0(%rax,%rax,1)
L89:
  xor    %eax,%eax
  call   <reset@plt>
  mov    0x10(%rsp),%eax
  cmp    %eax,0x34(%rsp)
  jne    L13
  jmp    L4
  nopw   0x0(%rax,%rax,1)
L36:
  xor    %eax,%eax
  call   <reset@plt>
  jmp    L13
L85:
  xor    %eax,%eax
  lea    0x8(%rsp),%r12
  call   <chdir@plt>
  mov    0x8(%rsp),%rsi
  lea    D14(%rip),%rdi
  xor    %eax,%eax
  call   <dircat@plt>
  mov    %r12,%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <rplstr@plt>
  mov    0x8(%rsp),%rdi
  mov    %rbp,%rsi
  xor    %eax,%eax
  call   <dircat@plt>
  mov    %r12,%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <rplstr@plt>
  mov    0x8(%rsp),%eax
L8:
  mov    0x88(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L54
  add    $0x98,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L54:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_label: D24
type_infered: string
name: retrieve_data
arguments: data_label: D28
type_infered: string
name: retrieve_data
arguments: data_label: D14
type_infered: string

tool: D24: ..

tool: D28: .

tool: 

assistant: ```c
getpath(filestr) char *filestr;
{
  int n;
  int gpfile;
  char *fulpath;
  struct statb {
    int devn, inum, i[18];
  } x;
  struct entry {
    int jnum;
    char name[16];
  } y;
  if (*filestr == '/') {
    fulpath = filestr;
    return (fulpath);
  }
  fulpath = alloc(1);
  *fulpath = 0;
  setexit();
  if (*fulpath) {
    chdir(fulpath);
    rplstr(&fulpath, dircat("", fulpath));
    rplstr(&fulpath, dircat(fulpath, filestr));
    return (fulpath);
  }
  while (1) {
    stat(".", &x);
    if ((gpfile = open("..", 0)) < 0)
      reset();
    do {
      if ((n = read(gpfile, &y, 16)) < 16)
        reset();
    } while (y.jnum != x.inum);
    close(gpfile);
    if (y.jnum == 1)
      ckroot(y.name, &fulpath);
    rplstr(&fulpath, dircat(y.name, fulpath));
    chdir("..");
  }
}
```