user: What would the C source look like for the assembly code provided here:

```asm
<expandpath>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x10,%rsp
  mov    %rdi,%rbx
  mov    %esi,%r13d
  mov    %fs:0x28,%rax
  mov    %rax,0x1008(%rsp)
  xor    %eax,%eax
  movzbl (%rdi),%ebp
  movzbl 0x1(%rdi),%r14d
  call   <strlen@plt>
  cltq
  cmpb   $0x2f,-0x1(%rbx,%rax,1)
  jne    L75
  mov    $0x0,%r12d
  test   %r13d,%r13d
  jne    L22
L75:
  cmp    $0x7e,%bpl
  je     L220
  cmp    $0x2f,%bpl
  je     L220
  cmp    $0x2e,%bpl
  jne    L16
  cmp    $0x2f,%r14b
  jne    L16
L133:
  mov    %rsp,%rdi
  mov    $0x1000,%esi
  call   <getcwd@plt>
  mov    %rax,%rbp
L154:
  mov    %rbp,%r12
  test   %rbp,%rbp
  je     L22
  mov    %rbp,%rdi
  call   <strlen@plt>
  mov    $0x0,%r12d
  cmp    $0x1000,%eax
  jg     L22
  mov    %rbp,%rdi
  call   <strlen@plt>
  mov    %eax,%r12d
  mov    %rbx,%rdi
  call   <strlen@plt>
  lea    (%r12,%rax,1),%edi
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L22
  lea    0x1(%rbx),%rcx
  mov    %rbp,%rdx
  lea    D9(%rip),%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  jmp    L22
L16:
  mov    $0x2f,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  test   %eax,%eax
  je     L4
  cmp    $0x2e,%bpl
  jne    L207
  cmp    $0x2f,%r14b
  je     L133
L207:
  mov    $0x0,%r12d
  jmp    L22
L4:
  mov    %rsp,%rdi
  mov    $0x1000,%esi
  call   <getcwd@plt>
  test   %rax,%rax
  je     L77
  mov    %rsp,%rdi
  call   <strlen@plt>
  mov    %eax,%r12d
  mov    %rbx,%rdi
  call   <strlen@plt>
  lea    0x2(%r12,%rax,1),%edi
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rax,%rax
  jne    L217
L77:
  cmp    $0x2e,%bpl
  jne    L170
  cmp    $0x2f,%r14b
  je     L133
L170:
  mov    $0x0,%r12d
  jmp    L22
L217:
  mov    %rsp,%rdx
  mov    %rbx,%rcx
  lea    D4(%rip),%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  jmp    L22
L220:
  cmp    $0x7e,%bpl
  sete   %al
  cmp    $0x2e,%bpl
  sete   %dl
  or     %dl,%al
  je     L102
  cmp    $0x2f,%r14b
  je     L236
L102:
  mov    $0x0,%r12d
  cmp    $0x2f,%bpl
  je     L214
L22:
  mov    0x1008(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L62
  mov    %r12,%rax
  add    $0x1010,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L236:
  cmp    $0x7e,%bpl
  jne    L133
  mov    $0x0,%eax
  call   <getudir@plt>
  mov    %rax,%rbp
  jmp    L154
L214:
  mov    %rbx,%rdi
  call   <strlen@plt>
  lea    0x1(%rax),%edi
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L22
  mov    %rbx,%rdi
  call   <strlen@plt>
  cmp    $0x1000,%eax
  jle    L107
  mov    $0x0,%r12d
  jmp    L22
L107:
  mov    %rbx,%rsi
  mov    %r12,%rdi
  call   <strcpy@plt>
  jmp    L22
L62:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_tag: D9
type: string
name: retrieve_data
arguments: data_tag: D4
type: string

tool: D9: %s%s

tool: D4: %s/%s

assistant: ```c
char *expandpath(char *path, int isfile) {
  char firstchar, secondchar, lastchar;
  char cwd[4096];
  char *dir = NULL;
  char *heap = NULL;
  int len = 0;
  firstchar = *path;
  secondchar = *(path + 1);
  lastchar = *(path + strlen(path) - 1);
  if (lastchar == '/' && isfile)
    return NULL;
  if (firstchar != '~' && firstchar != '/') {
    if (!(firstchar == '.' && secondchar == '/')) {
      if (!strchr(path, '/')) {
        if (getcwd(cwd, 4096)) {
          len = strlen(cwd) + strlen(path) + 2;
          if ((heap = malloc(len * sizeof(char)))) {
            sprintf(heap, "%s/%s", cwd, path);
            return heap;
          }
        }
      }
    }
  }
  if ((firstchar == '~' || firstchar == '.') && secondchar == '/') {
    if (firstchar == '~') {
      dir = getudir();
    } else {
      dir = getcwd(cwd, 4096);
    }
    if (dir) {
      if (strlen(dir) > 4096)
        return NULL;
      len = strlen(dir) + strlen(path);
      if ((heap = malloc(len * sizeof(char)))) {
        sprintf(heap, "%s%s", dir, path + 1);
        return heap;
      }
    }
  } else if (firstchar == '/') {
    heap = malloc((strlen(path) + 1) * sizeof(char));
    if (heap)
      if (strlen(path) <= 4096)
        return strcpy(heap, path);
  }
  return NULL;
}
```