ylfeng/ReF-Decompile-dataset huggingface dataset:
user: What would the C source look like for the assembly code provided here?

```asm
<main>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    D53(%rip),%rdi
  call   <puts@plt>
  mov    %rsp,%rsi
  lea    D32(%rip),%rdi
  call   <scanf@plt>
  test   %eax,%eax
  je     L11
  mov    (%rsp),%rsi
  lea    D25(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <reverseString@plt>
  mov    (%rsp),%rsi
  lea    D22(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <reverseString@plt>
  mov    (%rsp),%rdi
  call   <rot13@plt>
  mov    (%rsp),%rsi
  lea    D45(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <free@plt>
L14:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L0
  mov    $0x0,%eax
  add    $0x18,%rsp
  ret
L11:
  lea    D4(%rip),%rdi
  call   <puts@plt>
  jmp    L14
L0:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D53
data_type: string
name: extract_symbolic_data
arguments: data_tag: D32
data_type: string
name: extract_symbolic_data
arguments: data_tag: D25
data_type: string
name: extract_symbolic_data
arguments: data_tag: D22
data_type: string
name: extract_symbolic_data
arguments: data_tag: D45
data_type: string
name: extract_symbolic_data
arguments: data_tag: D4
data_type: string

tool: D53: Enter your message:

tool: D32: %ms

tool: D25: Initial value: "%s"


tool: D22: Reversed     : "%s"


tool: D45: ROT13        : "%s"


tool: D4: oops

assistant: ```c
int main() {
  char *msg;
  puts("Enter your message:");
  int readValue = scanf("%ms", &msg);
  if (readValue == 0) {
    puts("oops");
    return 0;
  }
  printf("Initial value: \"%s\"\n", msg);
  reverseString(msg);
  printf("Reversed     : \"%s\"\n", msg);
  reverseString(msg);
  rot13(msg);
  printf("ROT13        : \"%s\"\n", msg);
  free(msg);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<main>:
  endbr64
  sub    $0x18,%rsp
  lea    D55(%rip),%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <puts@plt>
  mov    %rsp,%rsi
  lea    D27(%rip),%rdi
  call   <scanf@plt>
  test   %eax,%eax
  je     L19
  mov    (%rsp),%rsi
  lea    D45(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <reverseString@plt>
  mov    (%rsp),%rsi
  lea    D28(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <reverseString@plt>
  mov    (%rsp),%rdi
  call   <rot13@plt>
  mov    (%rsp),%rsi
  lea    D6(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <free@plt>
L11:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L1
  xor    %eax,%eax
  add    $0x18,%rsp
  ret
L19:
  lea    D36(%rip),%rdi
  call   <puts@plt>
  jmp    L11
L1:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: tag: D55
data_type: string
name: parse_data
arguments: tag: D27
data_type: string
name: parse_data
arguments: tag: D45
data_type: string
name: parse_data
arguments: tag: D28
data_type: string
name: parse_data
arguments: tag: D6
data_type: string
name: parse_data
arguments: tag: D36
data_type: string

tool: D55: Enter your message:

tool: D27: %ms

tool: D45: Initial value: "%s"


tool: D28: Reversed     : "%s"


tool: D6: ROT13        : "%s"


tool: D36: oops

assistant: ```c
int main() {
  char *msg;
  puts("Enter your message:");
  int readValue = scanf("%ms", &msg);
  if (readValue == 0) {
    puts("oops");
    return 0;
  }
  printf("Initial value: \"%s\"\n", msg);
  reverseString(msg);
  printf("Reversed     : \"%s\"\n", msg);
  reverseString(msg);
  rot13(msg);
  printf("ROT13        : \"%s\"\n", msg);
  free(msg);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<main>:
  endbr64
  sub    $0x18,%rsp
  lea    D23(%rip),%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <puts@plt>
  mov    %rsp,%rsi
  lea    D27(%rip),%rdi
  call   <scanf@plt>
  test   %eax,%eax
  je     L6
  mov    (%rsp),%rsi
  lea    D53(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <reverseString@plt>
  mov    (%rsp),%rsi
  lea    D8(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <reverseString@plt>
  mov    (%rsp),%rdi
  call   <rot13@plt>
  mov    (%rsp),%rsi
  lea    D54(%rip),%rdi
  call   <printf@plt>
  mov    (%rsp),%rdi
  call   <free@plt>
L25:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L21
  xor    %eax,%eax
  add    $0x18,%rsp
  ret
L6:
  lea    D3(%rip),%rdi
  call   <puts@plt>
  jmp    L25
L21:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_label: D23
type_infered: string
name: read_data
arguments: data_label: D27
type_infered: string
name: read_data
arguments: data_label: D53
type_infered: string
name: read_data
arguments: data_label: D8
type_infered: string
name: read_data
arguments: data_label: D54
type_infered: string
name: read_data
arguments: data_label: D3
type_infered: string

tool: D23: Enter your message:

tool: D27: %ms

tool: D53: Initial value: "%s"


tool: D8: Reversed     : "%s"


tool: D54: ROT13        : "%s"


tool: D3: oops

assistant: ```c
int main() {
  char *msg;
  puts("Enter your message:");
  int readValue = scanf("%ms", &msg);
  if (readValue == 0) {
    puts("oops");
    return 0;
  }
  printf("Initial value: \"%s\"\n", msg);
  reverseString(msg);
  printf("Reversed     : \"%s\"\n", msg);
  reverseString(msg);
  rot13(msg);
  printf("ROT13        : \"%s\"\n", msg);
  free(msg);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<rc4_init>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x140,%rsp
  mov    %rdi,-0x128(%rbp)
  mov    %rsi,-0x130(%rbp)
  mov    %rdx,-0x138(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x118(%rbp)
  movl   $0x0,-0x114(%rbp)
  movq   $0x0,-0x110(%rbp)
  movq   $0x0,-0x108(%rbp)
  movq   $0x0,-0x100(%rbp)
  movq   $0x0,-0xf8(%rbp)
  movq   $0x0,-0xf0(%rbp)
  movq   $0x0,-0xe8(%rbp)
  movq   $0x0,-0xe0(%rbp)
  movq   $0x0,-0xd8(%rbp)
  movq   $0x0,-0xd0(%rbp)
  movq   $0x0,-0xc8(%rbp)
  movq   $0x0,-0xc0(%rbp)
  movq   $0x0,-0xb8(%rbp)
  movq   $0x0,-0xb0(%rbp)
  movq   $0x0,-0xa8(%rbp)
  movq   $0x0,-0xa0(%rbp)
  movq   $0x0,-0x98(%rbp)
  movq   $0x0,-0x90(%rbp)
  movq   $0x0,-0x88(%rbp)
  movq   $0x0,-0x80(%rbp)
  movq   $0x0,-0x78(%rbp)
  movq   $0x0,-0x70(%rbp)
  movq   $0x0,-0x68(%rbp)
  movq   $0x0,-0x60(%rbp)
  movq   $0x0,-0x58(%rbp)
  movq   $0x0,-0x50(%rbp)
  movq   $0x0,-0x48(%rbp)
  movq   $0x0,-0x40(%rbp)
  movq   $0x0,-0x38(%rbp)
  movq   $0x0,-0x30(%rbp)
  movq   $0x0,-0x28(%rbp)
  movq   $0x0,-0x20(%rbp)
  movq   $0x0,-0x18(%rbp)
  movb   $0x0,-0x119(%rbp)
  movl   $0x0,-0x118(%rbp)
  jmp    L46
L27:
  mov    -0x118(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x128(%rbp),%rax
  add    %rdx,%rax
  mov    -0x118(%rbp),%edx
  mov    %dl,(%rax)
  mov    -0x118(%rbp),%eax
  cltq
  mov    $0x0,%edx
  divq   -0x138(%rbp)
  mov    -0x130(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %eax,%edx
  mov    -0x118(%rbp),%eax
  cltq
  mov    %dl,-0x110(%rbp,%rax,1)
  addl   $0x1,-0x118(%rbp)
L46:
  cmpl   $0xff,-0x118(%rbp)
  jle    L27
  movl   $0x0,-0x118(%rbp)
  jmp    L30
L25:
  mov    -0x118(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x128(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x114(%rbp),%eax
  add    %eax,%edx
  mov    -0x118(%rbp),%eax
  cltq
  movzbl -0x110(%rbp,%rax,1),%eax
  movsbl %al,%eax
  add    %edx,%eax
  cltd
  shr    $0x18,%edx
  add    %edx,%eax
  movzbl %al,%eax
  sub    %edx,%eax
  mov    %eax,-0x114(%rbp)
  mov    -0x118(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x128(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0x119(%rbp)
  mov    -0x114(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x128(%rbp),%rax
  add    %rdx,%rax
  mov    -0x118(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x128(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  mov    -0x114(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x128(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x119(%rbp),%eax
  mov    %al,(%rdx)
  addl   $0x1,-0x118(%rbp)
L30:
  cmpl   $0xff,-0x118(%rbp)
  jle    L25
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L14
  call   <__stack_chk_fail@plt>
L14:
  leave
  ret
```

assistant: ```c
void rc4_init(unsigned char *s, unsigned char *key, unsigned long key_len) {
  int i = 0, j = 0;
  char k[256] = {0};
  unsigned char tmp = 0;
  for (i = 0; i < 256; i++) {
    s[i] = i;
    k[i] = key[i % key_len];
  }
  for (i = 0; i < 256; i++) {
    j = (j + s[i] + k[i]) % 256;
    tmp = s[i];
    s[i] = s[j];
    s[j] = tmp;
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<rc4_init>:
  endbr64
  sub    $0x118,%rsp
  mov    %rdx,%r8
  mov    %fs:0x28,%rax
  mov    %rax,0x108(%rsp)
  xor    %eax,%eax
  movq   $0x0,(%rsp)
  movq   $0x0,0x8(%rsp)
  movq   $0x0,0x10(%rsp)
  movq   $0x0,0x18(%rsp)
  movq   $0x0,0x20(%rsp)
  movq   $0x0,0x28(%rsp)
  movq   $0x0,0x30(%rsp)
  movq   $0x0,0x38(%rsp)
  movq   $0x0,0x40(%rsp)
  movq   $0x0,0x48(%rsp)
  movq   $0x0,0x50(%rsp)
  movq   $0x0,0x58(%rsp)
  movq   $0x0,0x60(%rsp)
  movq   $0x0,0x68(%rsp)
  movq   $0x0,0x70(%rsp)
  movq   $0x0,0x78(%rsp)
  movq   $0x0,0x80(%rsp)
  movq   $0x0,0x88(%rsp)
  movq   $0x0,0x90(%rsp)
  movq   $0x0,0x98(%rsp)
  movq   $0x0,0xa0(%rsp)
  movq   $0x0,0xa8(%rsp)
  movq   $0x0,0xb0(%rsp)
  movq   $0x0,0xb8(%rsp)
  movq   $0x0,0xc0(%rsp)
  movq   $0x0,0xc8(%rsp)
  movq   $0x0,0xd0(%rsp)
  movq   $0x0,0xd8(%rsp)
  movq   $0x0,0xe0(%rsp)
  movq   $0x0,0xe8(%rsp)
  movq   $0x0,0xf0(%rsp)
  movq   $0x0,0xf8(%rsp)
  mov    $0x0,%ecx
L18:
  mov    %cl,(%rdi,%rcx,1)
  mov    %rcx,%rax
  mov    $0x0,%edx
  div    %r8
  movzbl (%rsi,%rdx,1),%eax
  mov    %al,(%rsp,%rcx,1)
  add    $0x1,%rcx
  cmp    $0x100,%rcx
  jne    L18
  mov    $0x0,%edx
  mov    $0x0,%ecx
  mov    %rsp,%r8
L19:
  movzbl (%rdi,%rdx,1),%esi
  movzbl %sil,%eax
  add    %ecx,%eax
  movsbl (%rdx,%r8,1),%ecx
  add    %ecx,%eax
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  shr    $0x18,%ecx
  add    %ecx,%eax
  movzbl %al,%eax
  sub    %ecx,%eax
  mov    %eax,%ecx
  cltq
  add    %rdi,%rax
  movzbl (%rax),%r9d
  mov    %r9b,(%rdi,%rdx,1)
  mov    %sil,(%rax)
  add    $0x1,%rdx
  cmp    $0x100,%rdx
  jne    L19
  mov    0x108(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L20
  add    $0x118,%rsp
  ret
L20:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void rc4_init(unsigned char *s, unsigned char *key, unsigned long key_len) {
  int i = 0, j = 0;
  char k[256] = {0};
  unsigned char tmp = 0;
  for (i = 0; i < 256; i++) {
    s[i] = i;
    k[i] = key[i % key_len];
  }
  for (i = 0; i < 256; i++) {
    j = (j + s[i] + k[i]) % 256;
    tmp = s[i];
    s[i] = s[j];
    s[j] = tmp;
  }
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<rc4_init>:
  endbr64
  sub    $0x118,%rsp
  pxor   %xmm0,%xmm0
  mov    %rdx,%r9
  xor    %ecx,%ecx
  mov    %fs:0x28,%rax
  mov    %rax,0x108(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r8
  movaps %xmm0,(%rsp)
  movaps %xmm0,0x10(%rsp)
  movaps %xmm0,0x20(%rsp)
  movaps %xmm0,0x30(%rsp)
  movaps %xmm0,0x40(%rsp)
  movaps %xmm0,0x50(%rsp)
  movaps %xmm0,0x60(%rsp)
  movaps %xmm0,0x70(%rsp)
  movaps %xmm0,0x80(%rsp)
  movaps %xmm0,0x90(%rsp)
  movaps %xmm0,0xa0(%rsp)
  movaps %xmm0,0xb0(%rsp)
  movaps %xmm0,0xc0(%rsp)
  movaps %xmm0,0xd0(%rsp)
  movaps %xmm0,0xe0(%rsp)
  movaps %xmm0,0xf0(%rsp)
  nopl   0x0(%rax)
L6:
  mov    %rcx,%rax
  xor    %edx,%edx
  mov    %cl,(%rdi,%rcx,1)
  div    %r9
  movzbl (%rsi,%rdx,1),%eax
  mov    %al,(%r8,%rcx,1)
  add    $0x1,%rcx
  cmp    $0x100,%rcx
  jne    L6
  xor    %edx,%edx
  xor    %ecx,%ecx
  nopl   0x0(%rax)
L13:
  movzbl (%rdi,%rdx,1),%eax
  mov    %eax,%r9d
  add    %ecx,%eax
  movsbl (%r8,%rdx,1),%ecx
  add    %ecx,%eax
  mov    %eax,%esi
  sar    $0x1f,%esi
  shr    $0x18,%esi
  add    %esi,%eax
  movzbl %al,%ecx
  sub    %esi,%ecx
  movslq %ecx,%rax
  add    %rdi,%rax
  movzbl (%rax),%esi
  mov    %sil,(%rdi,%rdx,1)
  add    $0x1,%rdx
  mov    %r9b,(%rax)
  cmp    $0x100,%rdx
  jne    L13
  mov    0x108(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L5
  add    $0x118,%rsp
  ret
L5:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void rc4_init(unsigned char *s, unsigned char *key, unsigned long key_len) {
  int i = 0, j = 0;
  char k[256] = {0};
  unsigned char tmp = 0;
  for (i = 0; i < 256; i++) {
    s[i] = i;
    k[i] = key[i % key_len];
  }
  for (i = 0; i < 256; i++) {
    j = (j + s[i] + k[i]) % 256;
    tmp = s[i];
    s[i] = s[j];
    s[j] = tmp;
  }
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<rc4_init>:
  endbr64
  sub    $0x118,%rsp
  pxor   %xmm0,%xmm0
  mov    %rdx,%r9
  xor    %ecx,%ecx
  mov    %fs:0x28,%rax
  mov    %rax,0x108(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r8
  movaps %xmm0,(%rsp)
  movaps %xmm0,0x10(%rsp)
  movaps %xmm0,0x20(%rsp)
  movaps %xmm0,0x30(%rsp)
  movaps %xmm0,0x40(%rsp)
  movaps %xmm0,0x50(%rsp)
  movaps %xmm0,0x60(%rsp)
  movaps %xmm0,0x70(%rsp)
  movaps %xmm0,0x80(%rsp)
  movaps %xmm0,0x90(%rsp)
  movaps %xmm0,0xa0(%rsp)
  movaps %xmm0,0xb0(%rsp)
  movaps %xmm0,0xc0(%rsp)
  movaps %xmm0,0xd0(%rsp)
  movaps %xmm0,0xe0(%rsp)
  movaps %xmm0,0xf0(%rsp)
  nopl   0x0(%rax)
L16:
  mov    %rcx,%rax
  xor    %edx,%edx
  mov    %cl,(%rdi,%rcx,1)
  div    %r9
  movzbl (%rsi,%rdx,1),%eax
  mov    %al,(%r8,%rcx,1)
  add    $0x1,%rcx
  cmp    $0x100,%rcx
  jne    L16
  xor    %edx,%edx
  xor    %ecx,%ecx
  nopl   0x0(%rax)
L21:
  movzbl (%rdi,%rdx,1),%eax
  mov    %eax,%r9d
  add    %ecx,%eax
  movsbl (%r8,%rdx,1),%ecx
  add    %ecx,%eax
  mov    %eax,%esi
  sar    $0x1f,%esi
  shr    $0x18,%esi
  add    %esi,%eax
  movzbl %al,%ecx
  sub    %esi,%ecx
  movslq %ecx,%rax
  add    %rdi,%rax
  movzbl (%rax),%esi
  mov    %sil,(%rdi,%rdx,1)
  add    $0x1,%rdx
  mov    %r9b,(%rax)
  cmp    $0x100,%rdx
  jne    L21
  mov    0x108(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  add    $0x118,%rsp
  ret
L8:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void rc4_init(unsigned char *s, unsigned char *key, unsigned long key_len) {
  int i = 0, j = 0;
  char k[256] = {0};
  unsigned char tmp = 0;
  for (i = 0; i < 256; i++) {
    s[i] = i;
    k[i] = key[i % key_len];
  }
  for (i = 0; i < 256; i++) {
    j = (j + s[i] + k[i]) % 256;
    tmp = s[i];
    s[i] = s[j];
    s[j] = tmp;
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<urldecode>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  mov    %rax,-0x28(%rbp)
  movq   $0x0,-0x20(%rbp)
  jmp    L42
L77:
  mov    -0x38(%rbp),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cmp    $0x25,%eax
  je     L58
  cmp    $0x2b,%eax
  jne    L46
  mov    -0x28(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x28(%rbp)
  movb   $0x20,(%rax)
  jmp    L87
L58:
  mov    -0x20(%rbp),%rax
  add    $0x2,%rax
  cmp    %rax,-0x18(%rbp)
  jbe    L46
  mov    -0x20(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isxdigit@plt>
  test   %eax,%eax
  je     L46
  mov    -0x20(%rbp),%rax
  lea    0x2(%rax),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isxdigit@plt>
  test   %eax,%eax
  je     L46
  mov    -0x20(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  lea    -0x2c(%rbp),%rax
  mov    %rax,%rdx
  lea    D0(%rip),%rax
  mov    %rax,%rsi
  mov    %rcx,%rdi
  call   <sscanf@plt>
  mov    -0x2c(%rbp),%ecx
  mov    -0x28(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x28(%rbp)
  mov    %ecx,%edx
  mov    %dl,(%rax)
  addq   $0x2,-0x20(%rbp)
  jmp    L87
L46:
  mov    -0x38(%rbp),%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x28(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x28(%rbp)
  movzbl (%rcx),%edx
  mov    %dl,(%rax)
  nop
L87:
  addq   $0x1,-0x20(%rbp)
L42:
  mov    -0x20(%rbp),%rax
  cmp    -0x18(%rbp),%rax
  jb     L77
  mov    -0x28(%rbp),%rax
  movb   $0x0,(%rax)
  mov    -0x10(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L50
  call   <__stack_chk_fail@plt>
L50:
  leave
  ret
```

tool_calls: name: read_data
arguments: tag: D0
datatype: string

tool: D0: %02x

assistant: ```c
char *urldecode(const char *str) {
  size_t len = strlen(str);
  char *decoded = malloc(len + 1);
  char *p = decoded;
  unsigned int ch;
  size_t i;
  for (i = 0; i < len; i++)
    switch (str[i]) {
    case '+':
      *p++ = ' ';
      break;
    case '%':
      if (i + 2 < len && isxdigit(str[i + 1]) && isxdigit(str[i + 2])) {
        sscanf(&str[i + 1], "%02x", &ch);
        *p++ = ch;
        i += 2;
        break;
      }
    default:
      *p++ = str[i];
      break;
    }
  *p = '\0';
  return decoded;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<urldecode>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdi,%r14
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  call   <strlen@plt>
  mov    %rax,%r13
  lea    0x1(%rax),%rdi
  call   <malloc@plt>
  mov    %rax,(%rsp)
  test   %r13,%r13
  je     L44
  lea    0x1(%rax),%rbp
  mov    $0x0,%ebx
  jmp    L49
L104:
  lea    0x2(%rbx),%r15
  cmp    %r13,%r15
  jb     L80
L51:
  mov    %rbp,%rdx
  movzbl (%r12),%eax
L74:
  mov    %al,-0x1(%rbp)
  add    $0x1,%rbx
  add    $0x1,%rbp
  cmp    %rbx,%r13
  jbe    L20
L49:
  lea    (%r14,%rbx,1),%r12
  movzbl (%r12),%eax
  cmp    $0x25,%al
  je     L104
  cmp    $0x2b,%al
  jne    L51
  mov    %rbp,%rdx
  mov    $0x20,%eax
  jmp    L74
L80:
  lea    0x1(%r14,%rbx,1),%rax
  mov    %rax,0x8(%rsp)
  movsbl (%rax),%edi
  call   <isxdigit@plt>
  test   %eax,%eax
  je     L51
  movsbl 0x2(%r14,%rbx,1),%edi
  call   <isxdigit@plt>
  test   %eax,%eax
  je     L51
  lea    0x14(%rsp),%rdx
  lea    D9(%rip),%rsi
  mov    0x8(%rsp),%rdi
  call   <sscanf@plt>
  mov    %rbp,%rdx
  movzbl 0x14(%rsp),%eax
  mov    %r15,%rbx
  jmp    L74
L44:
  mov    (%rsp),%rdx
L20:
  movb   $0x0,(%rdx)
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L10
  mov    (%rsp),%rax
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L10:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_label: D9
type: string

tool: D9: %02x

assistant: ```c
char *urldecode(const char *str) {
  size_t len = strlen(str);
  char *decoded = malloc(len + 1);
  char *p = decoded;
  unsigned int ch;
  size_t i;
  for (i = 0; i < len; i++)
    switch (str[i]) {
    case '+':
      *p++ = ' ';
      break;
    case '%':
      if (i + 2 < len && isxdigit(str[i + 1]) && isxdigit(str[i + 2])) {
        sscanf(&str[i + 1], "%02x", &ch);
        *p++ = ch;
        i += 2;
        break;
      }
    default:
      *p++ = str[i];
      break;
    }
  *p = '\0';
  return decoded;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<urldecode>:
  endbr64
  push   %r15
  mov    %rdi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  call   <strlen@plt>
  lea    0x1(%rax),%rdi
  mov    %rax,%r14
  call   <malloc@plt>
  mov    %rax,%r8
  mov    %rax,%rbp
  test   %r14,%r14
  je     L47
  xor    %ebx,%ebx
  jmp    L37
  nopl   (%rax)
L23:
  mov    %r12,%rbx
  mov    $0x20,%eax
L50:
  mov    %al,-0x1(%rbp)
  cmp    %rbx,%r14
  jbe    L47
L37:
  lea    (%r15,%rbx,1),%r13
  lea    0x1(%rbx),%r12
  add    $0x1,%rbp
  movzbl 0x0(%r13),%eax
  cmp    $0x25,%al
  je     L26
  cmp    $0x2b,%al
  je     L23
L46:
  mov    %r12,%rbx
L71:
  mov    %al,-0x1(%rbp)
  cmp    %rbx,%r14
  ja     L37
L47:
  movb   $0x0,0x0(%rbp)
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L61
  add    $0x38,%rsp
  mov    %r8,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L26:
  lea    0x2(%rbx),%rdx
  cmp    %r14,%rdx
  jae    L46
  lea    (%r15,%r12,1),%rax
  mov    %r8,0x10(%rsp)
  movsbl (%rax),%edi
  mov    %rdx,0x8(%rsp)
  mov    %rax,0x18(%rsp)
  call   <isxdigit@plt>
  mov    0x8(%rsp),%rdx
  mov    0x10(%rsp),%r8
  test   %eax,%eax
  jne    L38
L33:
  movzbl 0x0(%r13),%eax
  mov    %r12,%rbx
  jmp    L71
  nopl   0x0(%rax)
L38:
  movsbl (%r15,%rdx,1),%edi
  mov    %r8,0x8(%rsp)
  call   <isxdigit@plt>
  mov    0x8(%rsp),%r8
  test   %eax,%eax
  je     L33
  mov    0x18(%rsp),%rdi
  lea    0x24(%rsp),%rdx
  lea    D7(%rip),%rsi
  mov    %r8,0x8(%rsp)
  add    $0x3,%rbx
  call   <sscanf@plt>
  movzbl 0x24(%rsp),%eax
  mov    0x8(%rsp),%r8
  jmp    L50
L61:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: label: D7
type_guessed: string

tool: D7: %02x

assistant: ```c
char *urldecode(const char *str) {
  size_t len = strlen(str);
  char *decoded = malloc(len + 1);
  char *p = decoded;
  unsigned int ch;
  size_t i;
  for (i = 0; i < len; i++)
    switch (str[i]) {
    case '+':
      *p++ = ' ';
      break;
    case '%':
      if (i + 2 < len && isxdigit(str[i + 1]) && isxdigit(str[i + 2])) {
        sscanf(&str[i + 1], "%02x", &ch);
        *p++ = ch;
        i += 2;
        break;
      }
    default:
      *p++ = str[i];
      break;
    }
  *p = '\0';
  return decoded;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<urldecode>:
  endbr64
  push   %r15
  mov    %rdi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  call   <strlen@plt>
  lea    0x1(%rax),%rdi
  mov    %rax,%r14
  call   <malloc@plt>
  mov    %rax,%r8
  mov    %rax,%rbp
  test   %r14,%r14
  je     L80
  xor    %ebx,%ebx
  jmp    L2
  nopl   (%rax)
L84:
  mov    %r12,%rbx
  mov    $0x20,%eax
L86:
  mov    %al,-0x1(%rbp)
  cmp    %rbx,%r14
  jbe    L80
L2:
  lea    (%r15,%rbx,1),%r13
  lea    0x1(%rbx),%r12
  add    $0x1,%rbp
  movzbl 0x0(%r13),%eax
  cmp    $0x25,%al
  je     L98
  cmp    $0x2b,%al
  je     L84
L0:
  mov    %r12,%rbx
L47:
  mov    %al,-0x1(%rbp)
  cmp    %rbx,%r14
  ja     L2
L80:
  movb   $0x0,0x0(%rbp)
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L61
  add    $0x38,%rsp
  mov    %r8,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L98:
  lea    0x2(%rbx),%rdx
  cmp    %r14,%rdx
  jae    L0
  lea    (%r15,%r12,1),%rax
  mov    %r8,0x10(%rsp)
  movsbl (%rax),%edi
  mov    %rdx,0x8(%rsp)
  mov    %rax,0x18(%rsp)
  call   <isxdigit@plt>
  mov    0x8(%rsp),%rdx
  mov    0x10(%rsp),%r8
  test   %eax,%eax
  jne    L63
L34:
  movzbl 0x0(%r13),%eax
  mov    %r12,%rbx
  jmp    L47
  nopl   0x0(%rax)
L63:
  movsbl (%r15,%rdx,1),%edi
  mov    %r8,0x8(%rsp)
  call   <isxdigit@plt>
  mov    0x8(%rsp),%r8
  test   %eax,%eax
  je     L34
  mov    0x18(%rsp),%rdi
  lea    0x24(%rsp),%rdx
  lea    D3(%rip),%rsi
  mov    %r8,0x8(%rsp)
  add    $0x3,%rbx
  call   <sscanf@plt>
  movzbl 0x24(%rsp),%eax
  mov    0x8(%rsp),%r8
  jmp    L86
L61:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D3
type_infered: string

tool: D3: %02x

assistant: ```c
char *urldecode(const char *str) {
  size_t len = strlen(str);
  char *decoded = malloc(len + 1);
  char *p = decoded;
  unsigned int ch;
  size_t i;
  for (i = 0; i < len; i++)
    switch (str[i]) {
    case '+':
      *p++ = ' ';
      break;
    case '%':
      if (i + 2 < len && isxdigit(str[i + 1]) && isxdigit(str[i + 2])) {
        sscanf(&str[i + 1], "%02x", &ch);
        *p++ = ch;
        i += 2;
        break;
      }
    default:
      *p++ = str[i];
      break;
    }
  *p = '\0';
  return decoded;
}
```