user: 请从给定的汇编指令推导出C源代码：

```asm
<apply_mod>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x10,%rsp
  mov    %rsi,%r12
  mov    %rdx,%rbp
  mov    %rcx,%rbx
  mov    %fs:0x28,%rax
  mov    %rax,0x1008(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rdi,%rcx
  lea    D4(%rip),%rdx
  mov    $0x1000,%esi
  mov    %rax,%rdi
  call   <snprintf@plt>
  movl   $0x2,(%rbx)
  mov    $0x2,%edx
  lea    D101(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  je     L38
  mov    %rsp,%rdi
  mov    $0x1000,%ecx
  lea    D83(%rip),%rbp
  mov    %rbp,%rdx
  mov    %r12,%rsi
  call   <apply_p_mod@plt>
  add    %eax,(%rbx)
  mov    %rbp,%rax
L42:
  mov    0x1008(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L11
  add    $0x1010,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L38:
  mov    $0x2,%edx
  lea    D50(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  je     L64
  mov    %rsp,%rdi
  mov    $0x1000,%edx
  lea    D83(%rip),%rbp
  mov    %rbp,%rsi
  call   <apply_tilde_mod@plt>
  add    %eax,(%rbx)
  mov    %rbp,%rax
  jmp    L42
L64:
  mov    $0x2,%edx
  lea    D51(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  je     L6
  mov    %rsp,%rdi
  mov    $0x1000,%edx
  lea    D83(%rip),%rbp
  mov    %rbp,%rsi
  call   <apply_dot_mod@plt>
  add    %eax,(%rbx)
  mov    %rbp,%rax
  jmp    L42
L6:
  mov    $0x2,%edx
  lea    D74(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  je     L167
  mov    %rsp,%rdi
  mov    $0x1000,%edx
  lea    D83(%rip),%rbp
  mov    %rbp,%rsi
  call   <apply_h_mod@plt>
  add    %eax,(%rbx)
  mov    %rbp,%rax
  jmp    L42
L167:
  mov    $0x2,%edx
  lea    D93(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  je     L96
  mov    %rsp,%rdi
  mov    $0x1000,%edx
  lea    D83(%rip),%rbp
  mov    %rbp,%rsi
  call   <apply_t_mod@plt>
  add    %eax,(%rbx)
  mov    %rbp,%rax
  jmp    L42
L96:
  mov    $0x2,%edx
  lea    D69(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  je     L119
  mov    %rsp,%rdi
  mov    $0x1000,%edx
  lea    D83(%rip),%rbp
  mov    %rbp,%rsi
  call   <apply_r_mod@plt>
  add    %eax,(%rbx)
  mov    %rbp,%rax
  jmp    L42
L119:
  mov    $0x2,%edx
  lea    D29(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  je     L112
  mov    %rsp,%rdi
  mov    $0x1000,%edx
  lea    D83(%rip),%rbp
  mov    %rbp,%rsi
  call   <apply_e_mod@plt>
  add    %eax,(%rbx)
  mov    %rbp,%rax
  jmp    L42
L112:
  mov    $0x2,%edx
  lea    D175(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  jne    L94
  mov    $0x3,%edx
  lea    D166(%rip),%rsi
  mov    %rbp,%rdi
  call   <starts_withn@plt>
  test   %rax,%rax
  je     L5
L94:
  mov    %rsp,%rdi
  mov    $0x1000,%ecx
  lea    D83(%rip),%r12
  mov    %r12,%rdx
  mov    %rbp,%rsi
  call   <apply_s_gs_mod@plt>
  add    %eax,(%rbx)
  mov    %r12,%rax
  jmp    L42
L5:
  mov    $0x0,%eax
  jmp    L42
L11:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_label: D4
datatype: string
name: unpack_data
arguments: data_label: D101
datatype: string
name: unpack_data
arguments: data_label: D50
datatype: string
name: unpack_data
arguments: data_label: D51
datatype: string
name: unpack_data
arguments: data_label: D74
datatype: string
name: unpack_data
arguments: data_label: D93
datatype: string
name: unpack_data
arguments: data_label: D69
datatype: string
name: unpack_data
arguments: data_label: D29
datatype: string
name: unpack_data
arguments: data_label: D175
datatype: string
name: unpack_data
arguments: data_label: D166
datatype: string

tool: D4: %s

tool: D101: :p

tool: D50: :~

tool: D51: :.

tool: D74: :h

tool: D93: :t

tool: D69: :r

tool: D29: :e

tool: D175: :s

tool: D166: :gs

assistant: ```c
const char *apply_mod(const char *path, const char *parent, const char *mod, int *mod_len, int for_shell) {
  char path_buf[4096];
  static char buf[4096];
  snprintf(path_buf, sizeof(path_buf), "%s", path);
  *mod_len = 2;
  if (starts_withn((mod), (":p"), sizeof(":p") / sizeof((":p")[0]) - 1U))
    *mod_len += apply_p_mod(path_buf, parent, buf, sizeof(buf));
  else if (starts_withn((mod), (":~"), sizeof(":~") / sizeof((":~")[0]) - 1U))
    *mod_len += apply_tilde_mod(path_buf, buf, sizeof(buf));
  else if (starts_withn((mod), (":."), sizeof(":.") / sizeof((":.")[0]) - 1U))
    *mod_len += apply_dot_mod(path_buf, buf, sizeof(buf));
  else if (starts_withn((mod), (":h"), sizeof(":h") / sizeof((":h")[0]) - 1U))
    *mod_len += apply_h_mod(path_buf, buf, sizeof(buf));
  else if (starts_withn((mod), (":t"), sizeof(":t") / sizeof((":t")[0]) - 1U))
    *mod_len += apply_t_mod(path_buf, buf, sizeof(buf));
  else if (starts_withn((mod), (":r"), sizeof(":r") / sizeof((":r")[0]) - 1U))
    *mod_len += apply_r_mod(path_buf, buf, sizeof(buf));
  else if (starts_withn((mod), (":e"), sizeof(":e") / sizeof((":e")[0]) - 1U))
    *mod_len += apply_e_mod(path_buf, buf, sizeof(buf));
  else if (starts_withn((mod), (":s"), sizeof(":s") / sizeof((":s")[0]) - 1U) || starts_withn((mod), (":gs"), sizeof(":gs") / sizeof((":gs")[0]) - 1U))
    *mod_len += apply_s_gs_mod(path_buf, mod, buf, sizeof(buf));
  else
    return NULL;
  return buf;
}
```