user: 请从给定的汇编指令推导出C源代码：

```asm
<resolve_path>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  mov    %rdi,%r15
  push   %r14
  mov    %rdx,%r14
  push   %r13
  push   %r12
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  cmpb   $0x2f,(%rdi)
  jne    L184
  movb   $0x2f,(%rsi)
  lea    0x1(%rsi),%r14
  add    $0x1,%r15
L184:
  movb   $0x0,(%r14)
  xor    %eax,%eax
  cmpb   $0x0,(%r15)
  lea    -0x3c(%rbp),%r13
  je     L61
  nopl   0x0(%rax)
L224:
  mov    $0x2f,%esi
  mov    %r15,%rdi
  call   <strchr@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L199
  movb   $0x0,(%rax)
L199:
  movzbl (%r15),%eax
  test   %al,%al
  je     L126
  cmp    $0x2e,%al
  jne    L81
  movzbl 0x1(%r15),%eax
  test   %al,%al
  je     L126
  cmp    $0x2e,%al
  je     L140
L81:
  mov    %r15,%rsi
  mov    %r14,%rdi
  call   <strcpy@plt>
  mov    %r13,%rsi
  mov    %rbx,%rdi
  call   <lstat@plt>
  test   %rax,%rax
  js     L68
  mov    -0x3c(%rbp),%edi
  call   <S_ISLNK@plt>
  test   %rax,%rax
  je     L64
  mov    D0(%rip),%rax
  mov    %rsp,%rsi
  mov    %rsp,-0x48(%rbp)
  movslq (%rax),%rax
  mov    %rax,%r8
  add    $0xf,%rax
  mov    %rax,%rdx
  and    $0xfffffffffffff000,%rax
  sub    %rax,%rsi
  and    $0xfffffffffffffff0,%rdx
  cmp    %rsi,%rsp
  je     L155
L136:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rsi,%rsp
  jne    L136
L155:
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  jne    L206
L26:
  mov    %rsp,%r9
  mov    %r8d,%edx
  mov    %rsp,%rsi
  mov    %rbx,%rdi
  mov    %r9,-0x50(%rbp)
  call   <readlink@plt>
  mov    -0x50(%rbp),%r9
  test   %rax,%rax
  js     L144
  movb   $0x0,(%r14)
  test   %r12,%r12
  je     L36
  movb   $0x2f,(%r12)
  mov    %r12,%rsi
  mov    %rsp,%rdi
  mov    %r9,-0x50(%rbp)
  call   <strcat@plt>
  mov    -0x50(%rbp),%r9
L36:
  mov    %r9,%rsi
  mov    %r15,%rdi
  call   <strcpy@plt>
  cmpb   $0x2f,(%r15)
  jne    L83
  movb   $0x0,0x1(%rbx)
L83:
  xor    %esi,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  mov    -0x48(%rbp),%rsp
  mov    %rax,%r14
  nopw   0x0(%rax,%rax,1)
L205:
  cmpb   $0x0,(%r15)
  jne    L224
  lea    -0x1(%r14),%rax
L66:
  movb   $0x0,(%rax)
  xor    %eax,%eax
L61:
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L99
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
  nopl   (%rax)
L126:
  lea    -0x1(%r14),%rax
L230:
  test   %r12,%r12
  je     L66
  mov    $0x2f,%edx
  lea    0x1(%rax),%r14
  lea    0x1(%r12),%r15
  mov    %dx,(%rax)
  jmp    L205
  nopl   0x0(%rax)
L64:
  xor    %esi,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  jmp    L230
  nopl   0x0(%rax)
L140:
  cmpb   $0x0,0x2(%r15)
  jne    L81
  lea    -0x1(%r14),%rax
  cmp    %rbx,%rax
  je     L230
  nopl   0x0(%rax)
L77:
  sub    $0x1,%rax
  cmpb   $0x2f,(%rax)
  jne    L77
  jmp    L230
  nopl   0x0(%rax,%rax,1)
L206:
  orq    $0x0,-0x8(%rsp,%rdx,1)
  jmp    L26
L144:
  mov    -0x48(%rbp),%rsp
  nopw   0x0(%rax,%rax,1)
L68:
  mov    $0xffffffff,%eax
  jmp    L61
L99:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int resolve_path(char *path, char *result, char *pos) {
  if (*path == '/') {
    *result = '/';
    pos = result + 1;
    path++;
  }
  *pos = 0;
  if (!*path)
    return 0;
  while (1) {
    char *slash;
    struct stat st;
    slash = *path ? strchr(path, '/') : NULL;
    if (slash)
      *slash = 0;
    if (!path[0] || (path[0] == '.' && (!path[1] || (path[1] == '.' && !path[2])))) {
      pos--;
      if (pos != result && path[0] && path[1])
        while (*--pos != '/')
          ;
    } else {
      strcpy(pos, path);
      if (lstat(result, &st) < 0)
        return -1;
      if (S_ISLNK(st.st_mode)) {
        char buf[PATH_MAX];
        if (readlink(result, buf, sizeof(buf)) < 0)
          return -1;
        *pos = 0;
        if (slash) {
          *slash = '/';
          strcat(buf, slash);
        }
        strcpy(path, buf);
        if (*path == '/')
          result[1] = 0;
        pos = strchr(result, 0);
        continue;
      }
      pos = strchr(result, 0);
    }
    if (slash) {
      *pos++ = '/';
      path = slash + 1;
    }
    *pos = 0;
    if (!slash)
      break;
  }
  return 0;
}
```