ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请从给定的汇编指令推导出C源代码：

```asm
<test_file>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%rsi
  call   <stat@plt>
  cmp    $0xffffffff,%eax
  setne  %al
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L6
  movzbl %al,%eax
  add    $0x18,%rsp
  ret
L6:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int test_file(const char *path) {
  struct stat test;
  if (stat(path, &test) == -1)
    return 0;
  return 1;
}
```
user: Translate the below assembly code into C programming language:

```asm
<test_file>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%rsi
  call   <stat@plt>
  cmp    $0xffffffff,%eax
  setne  %al
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L3
  movzbl %al,%eax
  add    $0x18,%rsp
  ret
L3:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int test_file(const char *path) {
  struct stat test;
  if (stat(path, &test) == -1)
    return 0;
  return 1;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<check_ip>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <check_string_empty@plt>
  test   %rax,%rax
  je     L79
  mov    $0x1,%eax
  jmp    L25
L79:
  movl   $0x0,-0x4(%rbp)
  jmp    L74
L17:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  jne    L29
  addl   $0x1,-0x8(%rbp)
L29:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isdigit@plt>
  test   %eax,%eax
  jne    L97
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  je     L97
  mov    $0x1,%eax
  jmp    L25
L97:
  addl   $0x1,-0x4(%rbp)
L74:
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0x4(%rbp)
  jl     L17
  cmpl   $0x3,-0x8(%rbp)
  je     L78
  mov    $0x1,%eax
  jmp    L25
L78:
  mov    $0x0,%eax
L25:
  leave
  ret
```

assistant: ```c
int check_ip(const char *ip) {
  int count_points = 0, i;
  if (check_string_empty(ip) != 0)
    return 1;
  for (i = 0; i < strlen(ip); i++) {
    if (ip[i] == '.')
      count_points++;
    if (!isdigit(ip[i]) && ip[i] != '.') {
      return 1;
    }
  }
  if (count_points != 3)
    return 1;
  return 0;
}
```
user: What is the c source code of the assembly code below:

```asm
<check_ip>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbp
  call   <check_string_empty@plt>
  mov    %rax,%rdx
  mov    $0x1,%eax
  test   %rdx,%rdx
  jne    L8
  mov    $0x0,%ebx
  mov    $0x0,%r12d
  jmp    L24
L1:
  add    $0x1,%rbx
L24:
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    %ebx,%eax
  jle    L0
  movzbl 0x0(%rbp,%rbx,1),%edi
  cmp    $0x2e,%dil
  sete   %al
  movzbl %al,%eax
  add    %eax,%r12d
  movsbl %dil,%edi
  call   <isdigit@plt>
  test   %eax,%eax
  jne    L1
  cmpb   $0x2e,0x0(%rbp,%rbx,1)
  je     L1
  mov    $0x1,%eax
  jmp    L8
L0:
  cmp    $0x3,%r12d
  setne  %al
  movzbl %al,%eax
L8:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int check_ip(const char *ip) {
  int count_points = 0, i;
  if (check_string_empty(ip) != 0)
    return 1;
  for (i = 0; i < strlen(ip); i++) {
    if (ip[i] == '.')
      count_points++;
    if (!isdigit(ip[i]) && ip[i] != '.') {
      return 1;
    }
  }
  if (count_points != 3)
    return 1;
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<check_ip>:
  endbr64
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  xor    %ebx,%ebx
  call   <check_string_empty@plt>
  test   %rax,%rax
  je     L29
  jmp    L19
  nopl   0x0(%rax)
L9:
  movsbl 0x0(%rbp,%rbx,1),%edi
  xor    %eax,%eax
  cmp    $0x2e,%dil
  sete   %al
  add    %eax,%r12d
  call   <isdigit@plt>
  test   %eax,%eax
  jne    L24
  cmpb   $0x2e,0x0(%rbp,%rbx,1)
  jne    L19
L24:
  add    $0x1,%rbx
L29:
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    %ebx,%eax
  jg     L9
  xor    %eax,%eax
  cmp    $0x3,%r12d
  pop    %rbx
  pop    %rbp
  setne  %al
  pop    %r12
  ret
  nop
L19:
  pop    %rbx
  mov    $0x1,%eax
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int check_ip(const char *ip) {
  int count_points = 0, i;
  if (check_string_empty(ip) != 0)
    return 1;
  for (i = 0; i < strlen(ip); i++) {
    if (ip[i] == '.')
      count_points++;
    if (!isdigit(ip[i]) && ip[i] != '.') {
      return 1;
    }
  }
  if (count_points != 3)
    return 1;
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<check_ip>:
  endbr64
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  xor    %ebx,%ebx
  call   <check_string_empty@plt>
  test   %rax,%rax
  je     L20
  jmp    L33
  nopl   0x0(%rax)
L35:
  movsbl 0x0(%rbp,%rbx,1),%edi
  xor    %eax,%eax
  cmp    $0x2e,%dil
  sete   %al
  add    %eax,%r12d
  call   <isdigit@plt>
  test   %eax,%eax
  jne    L39
  cmpb   $0x2e,0x0(%rbp,%rbx,1)
  jne    L33
L39:
  add    $0x1,%rbx
L20:
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    %ebx,%eax
  jg     L35
  xor    %eax,%eax
  cmp    $0x3,%r12d
  pop    %rbx
  pop    %rbp
  setne  %al
  pop    %r12
  ret
  nop
L33:
  pop    %rbx
  mov    $0x1,%eax
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int check_ip(const char *ip) {
  int count_points = 0, i;
  if (check_string_empty(ip) != 0)
    return 1;
  for (i = 0; i < strlen(ip); i++) {
    if (ip[i] == '.')
      count_points++;
    if (!isdigit(ip[i]) && ip[i] != '.') {
      return 1;
    }
  }
  if (count_points != 3)
    return 1;
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<ft_itoa>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  movl   $0x0,-0x10(%rbp)
  cmpl   $0x80000000,-0x14(%rbp)
  jne    L76
  lea    D16(%rip),%rax
  jmp    L3
L76:
  cmpl   $0x0,-0x14(%rbp)
  jne    L49
  lea    D10(%rip),%rax
  jmp    L3
L49:
  cmpl   $0x0,-0x14(%rbp)
  jns    L30
  negl   -0x14(%rbp)
  movl   $0x1,-0x10(%rbp)
L30:
  mov    -0x14(%rbp),%eax
  mov    %eax,%edi
  call   <ft_digitlen@plt>
  mov    -0x10(%rbp),%edx
  add    %edx,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0xc(%rbp),%eax
  mov    %eax,%edi
  call   <ft_strnew@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0xc(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0xc(%rbp)
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  jmp    L53
L15:
  mov    -0x14(%rbp),%edx
  movslq %edx,%rax
  imul   $0x66666667,%rax,%rax
  shr    $0x20,%rax
  sar    $0x2,%eax
  mov    %edx,%esi
  sar    $0x1f,%esi
  sub    %esi,%eax
  mov    %eax,%ecx
  mov    %ecx,%eax
  shl    $0x2,%eax
  add    %ecx,%eax
  add    %eax,%eax
  mov    %edx,%ecx
  sub    %eax,%ecx
  mov    %ecx,%eax
  lea    0x30(%rax),%ecx
  mov    -0xc(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0xc(%rbp)
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  mov    -0x14(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x66666667,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x2,%edx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  mov    %eax,-0x14(%rbp)
L53:
  cmpl   $0x0,-0x14(%rbp)
  jne    L15
  cmpl   $0x1,-0x10(%rbp)
  jne    L12
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movb   $0x2d,(%rax)
L12:
  mov    -0x8(%rbp),%rax
L3:
  leave
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D16
data_type: string
name: unpack_data
arguments: data_label: D10
data_type: string

tool: D16: -2147483648

tool: D10: 0

assistant: ```c
char *ft_itoa(int n) {
  int isneg;
  int digitlen;
  char *itoa;
  isneg = 0;
  if (n == -2147483648)
    return ("-2147483648");
  if (n == 0)
    return ("0");
  if (n < 0) {
    n = -n;
    isneg = 1;
  }
  digitlen = ft_digitlen(n) + isneg;
  itoa = ft_strnew(digitlen);
  itoa[digitlen--] = '\0';
  while (n != 0) {
    itoa[digitlen--] = (n % 10) + '0';
    n /= 10;
  }
  if (isneg == 1)
    itoa[digitlen] = '-';
  return (itoa);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<ft_itoa>:
  endbr64
  lea    D19(%rip),%rsi
  cmp    $0x80000000,%edi
  je     L36
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%ebx
  lea    D17(%rip),%rsi
  test   %edi,%edi
  je     L21
  mov    $0x0,%ebp
  js     L37
L52:
  mov    %ebx,%edi
  call   <ft_digitlen@plt>
  lea    0x0(%rbp,%rax,1),%r12d
  mov    %r12d,%edi
  call   <ft_strnew@plt>
  mov    %rax,%rsi
  movslq %r12d,%rax
  movb   $0x0,(%rsi,%rax,1)
  lea    -0x2(%r12),%edx
  movslq %edx,%rdx
L69:
  mov    %edx,%edi
  movslq %ebx,%rax
  imul   $0x66666667,%rax,%rax
  sar    $0x22,%rax
  mov    %ebx,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%eax
  lea    (%rax,%rax,4),%ecx
  add    %ecx,%ecx
  sub    %ecx,%ebx
  add    $0x30,%ebx
  mov    %bl,0x1(%rsi,%rdx,1)
  mov    %eax,%ebx
  sub    $0x1,%rdx
  test   %eax,%eax
  jne    L69
  cmp    $0x1,%ebp
  je     L66
L21:
  mov    %rsi,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L37:
  neg    %ebx
  mov    $0x1,%ebp
  jmp    L52
L66:
  movslq %edi,%rdi
  movb   $0x2d,(%rsi,%rdi,1)
  jmp    L21
L36:
  mov    %rsi,%rax
  ret
```

tool_calls: name: parse_data
arguments: data_tag: D19
datatype: string
name: parse_data
arguments: data_tag: D17
datatype: string

tool: D19: -2147483648

tool: D17: 0

assistant: ```c
char *ft_itoa(int n) {
  int isneg;
  int digitlen;
  char *itoa;
  isneg = 0;
  if (n == -2147483648)
    return ("-2147483648");
  if (n == 0)
    return ("0");
  if (n < 0) {
    n = -n;
    isneg = 1;
  }
  digitlen = ft_digitlen(n) + isneg;
  itoa = ft_strnew(digitlen);
  itoa[digitlen--] = '\0';
  while (n != 0) {
    itoa[digitlen--] = (n % 10) + '0';
    n /= 10;
  }
  if (isneg == 1)
    itoa[digitlen] = '-';
  return (itoa);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<ft_itoa>:
  endbr64
  lea    D17(%rip),%r8
  cmp    $0x80000000,%edi
  je     L10
  push   %r12
  lea    D3(%rip),%r8
  push   %rbp
  push   %rbx
  mov    %edi,%ebx
  test   %edi,%edi
  je     L57
  mov    $0x0,%ebp
  js     L44
L59:
  mov    %ebx,%edi
  call   <ft_digitlen@plt>
  lea    (%rax,%rbp,1),%r12d
  mov    %r12d,%edi
  call   <ft_strnew@plt>
  lea    -0x2(%r12),%edx
  mov    $0xcccccccd,%edi
  mov    %rax,%r8
  movslq %r12d,%rax
  movslq %edx,%rdx
  movb   $0x0,(%r8,%rax,1)
  nopw   0x0(%rax,%rax,1)
L5:
  mov    %ebx,%eax
  movslq %edx,%rsi
  imul   %rdi,%rax
  shr    $0x23,%rax
  lea    (%rax,%rax,4),%ecx
  add    %ecx,%ecx
  sub    %ecx,%ebx
  add    $0x30,%ebx
  mov    %bl,0x1(%r8,%rdx,1)
  mov    %eax,%ebx
  sub    $0x1,%rdx
  test   %eax,%eax
  jne    L5
  cmp    $0x1,%ebp
  je     L11
L57:
  pop    %rbx
  mov    %r8,%rax
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax,%rax,1)
L44:
  neg    %ebx
  mov    $0x1,%ebp
  jmp    L59
  nopl   0x0(%rax)
L10:
  mov    %r8,%rax
  ret
  nopl   0x0(%rax)
L11:
  movb   $0x2d,(%r8,%rsi,1)
  mov    %r8,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

tool_calls: name: unpack_data
arguments: label: D17
datatype: string
name: unpack_data
arguments: label: D3
datatype: string

tool: D17: -2147483648

tool: D3: 0

assistant: ```c
char *ft_itoa(int n) {
  int isneg;
  int digitlen;
  char *itoa;
  isneg = 0;
  if (n == -2147483648)
    return ("-2147483648");
  if (n == 0)
    return ("0");
  if (n < 0) {
    n = -n;
    isneg = 1;
  }
  digitlen = ft_digitlen(n) + isneg;
  itoa = ft_strnew(digitlen);
  itoa[digitlen--] = '\0';
  while (n != 0) {
    itoa[digitlen--] = (n % 10) + '0';
    n /= 10;
  }
  if (isneg == 1)
    itoa[digitlen] = '-';
  return (itoa);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<ft_itoa>:
  endbr64
  lea    D7(%rip),%r8
  cmp    $0x80000000,%edi
  je     L3
  push   %r12
  lea    D4(%rip),%r8
  push   %rbp
  push   %rbx
  mov    %edi,%ebx
  test   %edi,%edi
  je     L9
  mov    $0x0,%ebp
  js     L0
L48:
  mov    %ebx,%edi
  call   <ft_digitlen@plt>
  lea    (%rax,%rbp,1),%r12d
  mov    %r12d,%edi
  call   <ft_strnew@plt>
  lea    -0x2(%r12),%edx
  mov    $0xcccccccd,%edi
  mov    %rax,%r8
  movslq %r12d,%rax
  movslq %edx,%rdx
  movb   $0x0,(%r8,%rax,1)
  nopw   0x0(%rax,%rax,1)
L13:
  mov    %ebx,%eax
  movslq %edx,%rsi
  imul   %rdi,%rax
  shr    $0x23,%rax
  lea    (%rax,%rax,4),%ecx
  add    %ecx,%ecx
  sub    %ecx,%ebx
  add    $0x30,%ebx
  mov    %bl,0x1(%r8,%rdx,1)
  mov    %eax,%ebx
  sub    $0x1,%rdx
  test   %eax,%eax
  jne    L13
  cmp    $0x1,%ebp
  je     L57
L9:
  pop    %rbx
  mov    %r8,%rax
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax,%rax,1)
L0:
  neg    %ebx
  mov    $0x1,%ebp
  jmp    L48
  nopl   0x0(%rax)
L3:
  mov    %r8,%rax
  ret
  nopl   0x0(%rax)
L57:
  movb   $0x2d,(%r8,%rsi,1)
  mov    %r8,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

tool_calls: name: disassemble_data
arguments: label: D7
type: string
name: disassemble_data
arguments: label: D4
type: string

tool: D7: -2147483648

tool: D4: 0

assistant: ```c
char *ft_itoa(int n) {
  int isneg;
  int digitlen;
  char *itoa;
  isneg = 0;
  if (n == -2147483648)
    return ("-2147483648");
  if (n == 0)
    return ("0");
  if (n < 0) {
    n = -n;
    isneg = 1;
  }
  digitlen = ft_digitlen(n) + isneg;
  itoa = ft_strnew(digitlen);
  itoa[digitlen--] = '\0';
  while (n != 0) {
    itoa[digitlen--] = (n % 10) + '0';
    n /= 10;
  }
  if (isneg == 1)
    itoa[digitlen] = '-';
  return (itoa);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<tun_to_udp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %esi,-0x28(%rbp)
  mov    %rdx,-0x30(%rbp)
  mov    %rcx,-0x38(%rbp)
  mov    -0x38(%rbp),%rdx
  mov    -0x30(%rbp),%rcx
  mov    -0x24(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <tun_recv_packet@plt>
  mov    %rax,-0x18(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  jns    L27
  mov    $0x0,%eax
  jmp    L32
L27:
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  mov    %eax,%edi
  call   <find_route@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jne    L17
  mov    -0x30(%rbp),%rdx
  mov    -0x24(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <send_net_unreachable@plt>
  jmp    L34
L17:
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <decrement_ttl@plt>
  test   %eax,%eax
  je     L26
  mov    -0x8(%rbp),%rcx
  mov    -0x18(%rbp),%rdx
  mov    -0x30(%rbp),%rsi
  mov    -0x28(%rbp),%eax
  mov    %eax,%edi
  call   <sock_send_packet@plt>
  jmp    L34
L26:
  nop
L34:
  mov    $0x1,%eax
L32:
  leave
  ret
```

assistant: ```c
int tun_to_udp(int tun, int sock, char *buf, size_t buflen) {
  struct iphdr *iph;
  struct sockaddr_in *next_hop;
  ssize_t pktlen = tun_recv_packet(tun, buf, buflen);
  if (pktlen < 0)
    return 0;
  iph = (struct iphdr *)buf;
  next_hop = find_route((in_addr_t)iph->daddr);
  if (!next_hop) {
    send_net_unreachable(tun, buf);
    goto _active;
  }
  if (!decrement_ttl(iph)) {
    goto _active;
  }
  sock_send_packet(sock, buf, pktlen, next_hop);
_active:
  return 1;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<tun_to_udp>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%r12d
  mov    %esi,%r13d
  mov    %rdx,%rbx
  mov    %rcx,%rdx
  mov    %rbx,%rsi
  call   <tun_recv_packet@plt>
  mov    %rax,%rbp
  mov    $0x0,%eax
  test   %rbp,%rbp
  js     L33
  mov    (%rbx),%edi
  call   <find_route@plt>
  mov    %rax,%r14
  test   %rax,%rax
  je     L43
  mov    %rbx,%rdi
  call   <decrement_ttl@plt>
  mov    %eax,%edx
  mov    $0x1,%eax
  test   %edx,%edx
  jne    L38
L33:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L43:
  mov    %rbx,%rsi
  mov    %r12d,%edi
  call   <send_net_unreachable@plt>
  mov    $0x1,%eax
  jmp    L33
L38:
  mov    %r14,%rcx
  mov    %rbp,%rdx
  mov    %rbx,%rsi
  mov    %r13d,%edi
  call   <sock_send_packet@plt>
  mov    $0x1,%eax
  jmp    L33
```

assistant: ```c
int tun_to_udp(int tun, int sock, char *buf, size_t buflen) {
  struct iphdr *iph;
  struct sockaddr_in *next_hop;
  ssize_t pktlen = tun_recv_packet(tun, buf, buflen);
  if (pktlen < 0)
    return 0;
  iph = (struct iphdr *)buf;
  next_hop = find_route((in_addr_t)iph->daddr);
  if (!next_hop) {
    send_net_unreachable(tun, buf);
    goto _active;
  }
  if (!decrement_ttl(iph)) {
    goto _active;
  }
  sock_send_packet(sock, buf, pktlen, next_hop);
_active:
  return 1;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<tun_to_udp>:
  endbr64
  push   %r15
  xor    %r15d,%r15d
  push   %r14
  mov    %esi,%r14d
  push   %r13
  mov    %edi,%r13d
  push   %r12
  push   %rbp
  mov    %rdx,%rbp
  mov    %rcx,%rdx
  push   %rbx
  mov    %rbp,%rsi
  sub    $0x8,%rsp
  call   <tun_recv_packet@plt>
  test   %rax,%rax
  js     L32
  mov    0x0(%rbp),%edi
  mov    %rax,%r12
  call   <find_route@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L17
  mov    %rbp,%rdi
  mov    $0x1,%r15d
  call   <decrement_ttl@plt>
  test   %eax,%eax
  je     L32
  mov    %rbx,%rcx
  mov    %r12,%rdx
  mov    %rbp,%rsi
  mov    %r14d,%edi
  call   <sock_send_packet@plt>
L32:
  add    $0x8,%rsp
  mov    %r15d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L17:
  mov    %rbp,%rsi
  mov    %r13d,%edi
  mov    $0x1,%r15d
  call   <send_net_unreachable@plt>
  jmp    L32
```

assistant: ```c
int tun_to_udp(int tun, int sock, char *buf, size_t buflen) {
  struct iphdr *iph;
  struct sockaddr_in *next_hop;
  ssize_t pktlen = tun_recv_packet(tun, buf, buflen);
  if (pktlen < 0)
    return 0;
  iph = (struct iphdr *)buf;
  next_hop = find_route((in_addr_t)iph->daddr);
  if (!next_hop) {
    send_net_unreachable(tun, buf);
    goto _active;
  }
  if (!decrement_ttl(iph)) {
    goto _active;
  }
  sock_send_packet(sock, buf, pktlen, next_hop);
_active:
  return 1;
}
```
user: Translate the below assembly code into C programming language:

```asm
<tun_to_udp>:
  endbr64
  push   %r15
  xor    %r15d,%r15d
  push   %r14
  mov    %esi,%r14d
  push   %r13
  mov    %edi,%r13d
  push   %r12
  push   %rbp
  mov    %rdx,%rbp
  mov    %rcx,%rdx
  push   %rbx
  mov    %rbp,%rsi
  sub    $0x8,%rsp
  call   <tun_recv_packet@plt>
  test   %rax,%rax
  js     L9
  mov    0x0(%rbp),%edi
  mov    %rax,%r12
  call   <find_route@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L17
  mov    %rbp,%rdi
  mov    $0x1,%r15d
  call   <decrement_ttl@plt>
  test   %eax,%eax
  je     L9
  mov    %rbx,%rcx
  mov    %r12,%rdx
  mov    %rbp,%rsi
  mov    %r14d,%edi
  call   <sock_send_packet@plt>
L9:
  add    $0x8,%rsp
  mov    %r15d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L17:
  mov    %rbp,%rsi
  mov    %r13d,%edi
  mov    $0x1,%r15d
  call   <send_net_unreachable@plt>
  jmp    L9
```

assistant: ```c
int tun_to_udp(int tun, int sock, char *buf, size_t buflen) {
  struct iphdr *iph;
  struct sockaddr_in *next_hop;
  ssize_t pktlen = tun_recv_packet(tun, buf, buflen);
  if (pktlen < 0)
    return 0;
  iph = (struct iphdr *)buf;
  next_hop = find_route((in_addr_t)iph->daddr);
  if (!next_hop) {
    send_net_unreachable(tun, buf);
    goto _active;
  }
  if (!decrement_ttl(iph)) {
    goto _active;
  }
  sock_send_packet(sock, buf, pktlen, next_hop);
_active:
  return 1;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<ShareFreeM1c>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %rdi,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L9
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  nop
L9:
  nop
  leave
  ret
```

assistant: ```c
void ShareFreeM1c(char *s) {
  if (s)
    free((void *)s);
  return;
}
```
user: What is the c source code of the assembly code below:

```asm
<ShareFreeM1c>:
  endbr64
  test   %rdi,%rdi
  je     L1
  sub    $0x8,%rsp
  call   <free@plt>
  add    $0x8,%rsp
  ret
L1:
  ret
```

assistant: ```c
void ShareFreeM1c(char *s) {
  if (s)
    free((void *)s);
  return;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<ShareFreeM1c>:
  endbr64
  test   %rdi,%rdi
  je     L4
  jmp    1050 <free@plt>
  xchg   %ax,%ax
L4:
  ret
```

assistant: ```c
void ShareFreeM1c(char *s) {
  if (s)
    free((void *)s);
  return;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<ShareFreeM1c>:
  endbr64
  test   %rdi,%rdi
  je     L2
  jmp    1050 <free@plt>
  xchg   %ax,%ax
L2:
  ret
```

assistant: ```c
void ShareFreeM1c(char *s) {
  if (s)
    free((void *)s);
  return;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<expand>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  movl   $0x0,-0x10(%rbp)
  movl   $0x0,-0xc(%rbp)
  movl   $0x0,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L38
L28:
  mov    -0x10(%rbp),%eax
  cmp    -0xc(%rbp),%eax
  jne    L11
  addl   $0x1,-0xc(%rbp)
L11:
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  jne    L46
  addl   $0x1,-0x10(%rbp)
L46:
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  jne    L51
  addl   $0x1,-0xc(%rbp)
L51:
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0x12(%rbp)
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0x11(%rbp)
  movsbl -0x12(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  jmp    L77
L29:
  mov    -0x4(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cmp    %eax,-0x8(%rbp)
  je     L82
  mov    -0x4(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x4(%rbp)
  movslq %eax,%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    -0x8(%rbp),%edx
  mov    %dl,(%rax)
L82:
  addl   $0x1,-0x8(%rbp)
L77:
  movsbl -0x11(%rbp),%eax
  cmp    %eax,-0x8(%rbp)
  jle    L29
  addl   $0x1,-0x10(%rbp)
  addl   $0x1,-0xc(%rbp)
L38:
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0x10(%rbp)
  jge    L45
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0xc(%rbp)
  jl     L28
L45:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  nop
  leave
  ret
```

assistant: ```c
void expand(char s1[], char s2[]) {
  int i = 0, j = 0;
  int k = 0;
  int i2 = 0;
  char a, b;
  while (i < strlen(s1) && j < strlen(s1)) {
    if (i == j)
      j++;
    if (s1[i] == '-')
      i++;
    if (s1[j] == '-')
      j++;
    a = s1[i];
    b = s1[j];
    for (k = a; k <= b; k++) {
      if (k != s2[i2 - 1])
        s2[i2++] = k;
    }
    i++;
    j++;
  }
  s2[i2] = '\0';
}
```