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

```asm
<strtolower>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  movl   $0x8,-0x4(%rbp)
  movl   $0x0,-0x8(%rbp)
  jmp    L46
L24:
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x40,%al
  jle    L19
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x5a,%al
  jg     L19
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  add    $0x20,%eax
  jmp    L7
L19:
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
L7:
  mov    -0x8(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x18(%rbp),%rdx
  add    %rcx,%rdx
  mov    %al,(%rdx)
  addl   $0x1,-0x8(%rbp)
L46:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jl     L24
  mov    -0x18(%rbp),%rax
  pop    %rbp
  ret
```

assistant: ```c
char *strtolower(char *s) {
  int i, len = sizeof(s);
  for (i = 0; i < len; i++) {
    s[i] = (s[i] >= 'A' && s[i] <= 'Z' ? s[i] + 'a' - 'A' : s[i]);
  }
  return (s);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<strtolower>:
  endbr64
  mov    %rdi,%rax
  mov    %rdi,%rcx
  lea    0x8(%rdi),%r9
L9:
  movzbl (%rcx),%edx
  lea    -0x41(%rdx),%r8d
  lea    0x20(%rdx),%esi
  cmp    $0x1a,%r8b
  cmovb  %esi,%edx
  mov    %dl,(%rcx)
  add    $0x1,%rcx
  cmp    %r9,%rcx
  jne    L9
  ret
```

assistant: ```c
char *strtolower(char *s) {
  int i, len = sizeof(s);
  for (i = 0; i < len; i++) {
    s[i] = (s[i] >= 'A' && s[i] <= 'Z' ? s[i] + 'a' - 'A' : s[i]);
  }
  return (s);
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<strtolower>:
  endbr64
  mov    %rdi,%rax
  mov    %rdi,%rcx
  lea    0x8(%rdi),%r9
  xchg   %ax,%ax
L3:
  movzbl (%rcx),%edx
  lea    -0x41(%rdx),%r8d
  lea    0x20(%rdx),%esi
  cmp    $0x1a,%r8b
  cmovb  %esi,%edx
  add    $0x1,%rcx
  mov    %dl,-0x1(%rcx)
  cmp    %r9,%rcx
  jne    L3
  ret
```

assistant: ```c
char *strtolower(char *s) {
  int i, len = sizeof(s);
  for (i = 0; i < len; i++) {
    s[i] = (s[i] >= 'A' && s[i] <= 'Z' ? s[i] + 'a' - 'A' : s[i]);
  }
  return (s);
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<strtolower>:
  endbr64
  movzbl (%rdi),%edx
  mov    %rdi,%rax
  lea    -0x41(%rdx),%esi
  lea    0x20(%rdx),%ecx
  cmp    $0x1a,%sil
  cmovb  %ecx,%edx
  mov    %dl,(%rdi)
  movzbl 0x1(%rdi),%edx
  lea    -0x41(%rdx),%esi
  lea    0x20(%rdx),%ecx
  cmp    $0x1a,%sil
  cmovb  %ecx,%edx
  mov    %dl,0x1(%rdi)
  movzbl 0x2(%rdi),%edx
  lea    -0x41(%rdx),%esi
  lea    0x20(%rdx),%ecx
  cmp    $0x1a,%sil
  cmovb  %ecx,%edx
  mov    %dl,0x2(%rdi)
  movzbl 0x3(%rdi),%edx
  lea    -0x41(%rdx),%esi
  lea    0x20(%rdx),%ecx
  cmp    $0x1a,%sil
  cmovb  %ecx,%edx
  mov    %dl,0x3(%rdi)
  movzbl 0x4(%rdi),%edx
  lea    -0x41(%rdx),%esi
  lea    0x20(%rdx),%ecx
  cmp    $0x1a,%sil
  cmovb  %ecx,%edx
  mov    %dl,0x4(%rdi)
  movzbl 0x5(%rdi),%edx
  lea    -0x41(%rdx),%esi
  lea    0x20(%rdx),%ecx
  cmp    $0x1a,%sil
  cmovb  %ecx,%edx
  mov    %dl,0x5(%rdi)
  movzbl 0x6(%rdi),%edx
  lea    -0x41(%rdx),%esi
  lea    0x20(%rdx),%ecx
  cmp    $0x1a,%sil
  cmovb  %ecx,%edx
  mov    %dl,0x6(%rdi)
  movzbl 0x7(%rdi),%edx
  lea    -0x41(%rdx),%esi
  lea    0x20(%rdx),%ecx
  cmp    $0x1a,%sil
  cmovb  %ecx,%edx
  mov    %dl,0x7(%rdi)
  ret
```

assistant: ```c
char *strtolower(char *s) {
  int i, len = sizeof(s);
  for (i = 0; i < len; i++) {
    s[i] = (s[i] >= 'A' && s[i] <= 'Z' ? s[i] + 'a' - 'A' : s[i]);
  }
  return (s);
}
```
user: What is the c source code of the assembly code below:

```asm
<fgmvread_open_>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0xf0,%rsp
  mov    %rdi,-0xe8(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0xd4(%rbp)
  jmp    L21
L14:
  mov    -0xd4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0xe8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0xd4(%rbp),%eax
  cltq
  mov    %dl,-0xd0(%rbp,%rax,1)
L21:
  mov    -0xd4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0xe8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  jne    L14
  mov    -0xd4(%rbp),%eax
  cltq
  movb   $0x0,-0xd0(%rbp,%rax,1)
  lea    -0xd0(%rbp),%rax
  mov    %rax,%rdi
  call   <gmvread_open@plt>
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L9
  call   <__stack_chk_fail@plt>
L9:
  leave
  ret
```

assistant: ```c
void fgmvread_open_(char *filnam) {
  int i;
  char charbuffer[200];
  i = 0;
  while (*(filnam + i) != ' ') {
    charbuffer[i] = *(filnam + i);
  }
  charbuffer[i] = '\0';
  gmvread_open(charbuffer);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<fgmvread_open_>:
  endbr64
  sub    $0xd8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xc8(%rsp)
  xor    %eax,%eax
  movzbl (%rdi),%eax
L7:
  cmp    $0x20,%al
  jne    L7
  movb   $0x0,(%rsp)
  mov    %rsp,%rdi
  call   <gmvread_open@plt>
  mov    0xc8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L16
  add    $0xd8,%rsp
  ret
L16:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void fgmvread_open_(char *filnam) {
  int i;
  char charbuffer[200];
  i = 0;
  while (*(filnam + i) != ' ') {
    charbuffer[i] = *(filnam + i);
  }
  charbuffer[i] = '\0';
  gmvread_open(charbuffer);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<fgmvread_open_>:
  endbr64
  sub    $0xd8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xc8(%rsp)
  xor    %eax,%eax
  movzbl (%rdi),%eax
  nopl   0x0(%rax)
L8:
  cmp    $0x20,%al
  jne    L8
  mov    %rsp,%rdi
  movb   $0x0,(%rsp)
  call   <gmvread_open@plt>
  mov    0xc8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L15
  add    $0xd8,%rsp
  ret
L15:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void fgmvread_open_(char *filnam) {
  int i;
  char charbuffer[200];
  i = 0;
  while (*(filnam + i) != ' ') {
    charbuffer[i] = *(filnam + i);
  }
  charbuffer[i] = '\0';
  gmvread_open(charbuffer);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<fgmvread_open_>:
  endbr64
  sub    $0xd8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xc8(%rsp)
  xor    %eax,%eax
  cmpb   $0x20,(%rdi)
  je     L27
L14:
  jmp    L14
  nopl   (%rax)
L27:
  mov    %rsp,%rdi
  movb   $0x0,(%rsp)
  call   <gmvread_open@plt>
  mov    0xc8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L24
  add    $0xd8,%rsp
  ret
L24:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void fgmvread_open_(char *filnam) {
  int i;
  char charbuffer[200];
  i = 0;
  while (*(filnam + i) != ' ') {
    charbuffer[i] = *(filnam + i);
  }
  charbuffer[i] = '\0';
  gmvread_open(charbuffer);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<recvline>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  movl   $0x0,-0x4(%rbp)
L30:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x28(%rbp),%rdx
  mov    -0x14(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <recvbyte@plt>
  test   %rax,%rax
  jns    L6
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    $0xffffffff,%eax
  jmp    L41
L6:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0xd,%al
  je     L18
  addl   $0x1,-0x4(%rbp)
  jmp    L0
L18:
  nop
L0:
  mov    -0x4(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  jne    L30
  subl   $0x1,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x4(%rbp),%eax
L41:
  leave
  ret
```

assistant: ```c
int recvline(int port, unsigned char *data, long timeout) {
  int len = 0;
  do {
    if ((recvbyte(port, data + len, timeout)) < 0) {
      data[len] = 0;
      return -1;
    }
    if (data[len] == '\r')
      continue;
    len++;
  } while (data[len - 1] != '\n');
  len--;
  data[len] = 0;
  return len;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<recvline>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%r14d
  mov    %rsi,%r12
  mov    %rdx,%r13
  mov    $0x0,%ebp
L16:
  movslq %ebp,%rbx
  add    %r12,%rbx
  mov    %r13,%rdx
  mov    %rbx,%rsi
  mov    %r14d,%edi
  call   <recvbyte@plt>
  test   %rax,%rax
  js     L4
  cmpb   $0xd,(%rbx)
  setne  %al
  movzbl %al,%eax
  add    %eax,%ebp
  movslq %ebp,%rax
  lea    -0x1(%r12,%rax,1),%rdx
  cmpb   $0xa,(%rdx)
  jne    L16
  lea    -0x1(%rbp),%eax
  movb   $0x0,(%rdx)
  jmp    L28
L4:
  movb   $0x0,(%rbx)
  mov    $0xffffffff,%eax
L28:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
int recvline(int port, unsigned char *data, long timeout) {
  int len = 0;
  do {
    if ((recvbyte(port, data + len, timeout)) < 0) {
      data[len] = 0;
      return -1;
    }
    if (data[len] == '\r')
      continue;
    len++;
  } while (data[len - 1] != '\n');
  len--;
  data[len] = 0;
  return len;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<recvline>:
  endbr64
  push   %r15
  mov    %rdx,%r15
  push   %r14
  mov    %edi,%r14d
  push   %r13
  mov    %rsi,%r13
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  sub    $0x8,%rsp
  jmp    L16
  nopw   0x0(%rax,%rax,1)
L23:
  cmpb   $0xd,(%rbx)
  je     L28
  add    $0x1,%r12d
  movslq %r12d,%rbp
L28:
  lea    -0x1(%r13,%rbp,1),%rdx
  cmpb   $0xa,(%rdx)
  je     L18
L16:
  lea    0x0(%r13,%rbp,1),%rbx
  mov    %r15,%rdx
  mov    %r14d,%edi
  mov    %rbx,%rsi
  call   <recvbyte@plt>
  test   %rax,%rax
  jns    L23
  movb   $0x0,(%rbx)
  add    $0x8,%rsp
  mov    $0xffffffff,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   (%rax)
L18:
  movb   $0x0,(%rdx)
  add    $0x8,%rsp
  lea    -0x1(%r12),%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int recvline(int port, unsigned char *data, long timeout) {
  int len = 0;
  do {
    if ((recvbyte(port, data + len, timeout)) < 0) {
      data[len] = 0;
      return -1;
    }
    if (data[len] == '\r')
      continue;
    len++;
  } while (data[len - 1] != '\n');
  len--;
  data[len] = 0;
  return len;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<recvline>:
  endbr64
  push   %r15
  xor    %r15d,%r15d
  push   %r14
  mov    %edi,%r14d
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  sub    $0x8,%rsp
L46:
  lea    (%r12,%r15,1),%rbx
  mov    %r13,%rdx
  mov    %r14d,%edi
  mov    %rbx,%rsi
  call   <recvbyte@plt>
  test   %rax,%rax
  js     L14
  movzbl (%rbx),%eax
  cmp    $0xd,%al
  je     L5
  add    $0x1,%ebp
  cmp    $0xa,%al
  je     L1
  movslq %ebp,%r15
  jmp    L46
  nopw   0x0(%rax,%rax,1)
L5:
  lea    -0x1(%r12,%r15,1),%rbx
  cmpb   $0xa,(%rbx)
  jne    L46
L1:
  movb   $0x0,(%rbx)
  add    $0x8,%rsp
  lea    -0x1(%rbp),%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L14:
  movb   $0x0,(%rbx)
  add    $0x8,%rsp
  mov    $0xffffffff,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int recvline(int port, unsigned char *data, long timeout) {
  int len = 0;
  do {
    if ((recvbyte(port, data + len, timeout)) < 0) {
      data[len] = 0;
      return -1;
    }
    if (data[len] == '\r')
      continue;
    len++;
  } while (data[len - 1] != '\n');
  len--;
  data[len] = 0;
  return len;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<wifi_where>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x430,%rsp
  mov    %rdi,-0x428(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x41c(%rbp)
  jmp    L46
L45:
  mov    -0x428(%rbp),%rcx
  mov    -0x41c(%rbp),%edx
  lea    -0x410(%rbp),%rax
  lea    D6(%rip),%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <dir_exists@plt>
  mov    %rax,-0x418(%rbp)
  cmpq   $0x0,-0x418(%rbp)
  je     L15
  mov    -0x418(%rbp),%rax
  mov    %rax,%rdi
  call   <closedir@plt>
  mov    -0x41c(%rbp),%eax
  jmp    L47
L15:
  addl   $0x1,-0x41c(%rbp)
L46:
  cmpl   $0x9,-0x41c(%rbp)
  jle    L45
  mov    $0xffffffff,%eax
L47:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L41
  call   <__stack_chk_fail@plt>
L41:
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: tag: D6
type: string

tool: D6: /sys/kernel/debug/ieee80211/phy%i/netdev:%s/stations

assistant: ```c
int wifi_where(char *dev) {
  char buf[1024];
  DIR *fd;
  for (int i = 0; i < 10; i++) {
    sprintf(buf, "/sys/kernel/debug/ieee80211/phy%i/netdev:%s/stations", i, dev);
    if ((fd = dir_exists(buf)) != NULL) {
      closedir(fd);
      return i;
    }
  }
  return -1;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<wifi_where>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x418,%rsp
  mov    %rdi,%r12
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  mov    $0x0,%ebx
  lea    D2(%rip),%r13
L11:
  mov    %rsp,%rbp
  mov    %r12,%rcx
  mov    %ebx,%edx
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <sprintf@plt>
  mov    %rbp,%rdi
  call   <dir_exists@plt>
  test   %rax,%rax
  jne    L22
  add    $0x1,%ebx
  cmp    $0xa,%ebx
  jne    L11
  mov    $0xffffffff,%ebx
L1:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L12
  mov    %ebx,%eax
  add    $0x418,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L22:
  mov    %rax,%rdi
  call   <closedir@plt>
  jmp    L1
L12:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: label: D2
datatype: string

tool: D2: /sys/kernel/debug/ieee80211/phy%i/netdev:%s/stations

assistant: ```c
int wifi_where(char *dev) {
  char buf[1024];
  DIR *fd;
  for (int i = 0; i < 10; i++) {
    sprintf(buf, "/sys/kernel/debug/ieee80211/phy%i/netdev:%s/stations", i, dev);
    if ((fd = dir_exists(buf)) != NULL) {
      closedir(fd);
      return i;
    }
  }
  return -1;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<wifi_where>:
  endbr64
  push   %r13
  lea    D3(%rip),%r13
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  sub    $0x418,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbx
  nopl   0x0(%rax)
L19:
  mov    %rbx,%rdi
  mov    %rbp,%rcx
  mov    %r12d,%edx
  mov    %r13,%rsi
  call   <sprintf@plt>
  mov    %rbx,%rdi
  call   <dir_exists@plt>
  test   %rax,%rax
  jne    L0
  add    $0x1,%r12d
  cmp    $0xa,%r12d
  jne    L19
  mov    $0xffffffff,%r12d
L32:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L36
  add    $0x418,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L0:
  mov    %rax,%rdi
  call   <closedir@plt>
  jmp    L32
L36:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D3
type: string

tool: D3: /sys/kernel/debug/ieee80211/phy%i/netdev:%s/stations

assistant: ```c
int wifi_where(char *dev) {
  char buf[1024];
  DIR *fd;
  for (int i = 0; i < 10; i++) {
    sprintf(buf, "/sys/kernel/debug/ieee80211/phy%i/netdev:%s/stations", i, dev);
    if ((fd = dir_exists(buf)) != NULL) {
      closedir(fd);
      return i;
    }
  }
  return -1;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<wifi_where>:
  endbr64
  push   %r13
  lea    D5(%rip),%r13
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  sub    $0x418,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbx
  nopl   0x0(%rax)
L5:
  mov    %rbx,%rdi
  mov    %rbp,%rcx
  mov    %r12d,%edx
  mov    %r13,%rsi
  call   <sprintf@plt>
  mov    %rbx,%rdi
  call   <dir_exists@plt>
  test   %rax,%rax
  jne    L22
  add    $0x1,%r12d
  cmp    $0xa,%r12d
  jne    L5
  mov    $0xffffffff,%r12d
L9:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L7
  add    $0x418,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L22:
  mov    %rax,%rdi
  call   <closedir@plt>
  jmp    L9
L7:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D5
type_infered: string

tool: D5: /sys/kernel/debug/ieee80211/phy%i/netdev:%s/stations

assistant: ```c
int wifi_where(char *dev) {
  char buf[1024];
  DIR *fd;
  for (int i = 0; i < 10; i++) {
    sprintf(buf, "/sys/kernel/debug/ieee80211/phy%i/netdev:%s/stations", i, dev);
    if ((fd = dir_exists(buf)) != NULL) {
      closedir(fd);
      return i;
    }
  }
  return -1;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<submask_prefixtomask>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  movl   $0x0,-0xc(%rbp)
  movl   $0x0,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  cmpq   $0x0,-0x20(%rbp)
  jne    L40
  mov    $0xffffffff,%eax
  jmp    L12
L40:
  cmpl   $0x20,-0x14(%rbp)
  jle    L7
  mov    $0xffffffff,%eax
  jmp    L12
L7:
  cmpl   $0x8,-0x14(%rbp)
  jne    L35
  mov    -0x20(%rbp),%rax
  lea    D35(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
L35:
  cmpl   $0x10,-0x14(%rbp)
  jne    L11
  mov    -0x20(%rbp),%rax
  lea    D34(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
L11:
  cmpl   $0x18,-0x14(%rbp)
  jne    L73
  mov    -0x20(%rbp),%rax
  lea    D25(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
L73:
  cmpl   $0x20,-0x14(%rbp)
  jne    L89
  mov    -0x20(%rbp),%rax
  lea    D21(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
L89:
  mov    -0x14(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  movl   $0x1f,-0x4(%rbp)
  jmp    L54
L44:
  mov    -0x4(%rbp),%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    %edx,%eax
  add    %eax,-0xc(%rbp)
  subl   $0x1,-0x8(%rbp)
  subl   $0x1,-0x4(%rbp)
L54:
  cmpl   $0x0,-0x8(%rbp)
  jg     L44
  mov    -0xc(%rbp),%eax
  movzbl %al,%edi
  mov    -0xc(%rbp),%eax
  shr    $0x8,%eax
  movzbl %al,%ecx
  mov    -0xc(%rbp),%eax
  shr    $0x10,%eax
  movzbl %al,%edx
  mov    -0xc(%rbp),%eax
  shr    $0x18,%eax
  mov    %eax,%esi
  mov    -0x20(%rbp),%rax
  mov    %edi,%r9d
  mov    %ecx,%r8d
  mov    %edx,%ecx
  mov    %esi,%edx
  lea    D41(%rip),%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  mov    $0x0,%eax
L12:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: tag: D35
type: string
name: extract_symbolic_data
arguments: tag: D34
type: string
name: extract_symbolic_data
arguments: tag: D25
type: string
name: extract_symbolic_data
arguments: tag: D21
type: string
name: extract_symbolic_data
arguments: tag: D41
type: string

tool: D35: 255.0.0.0

tool: D34: 255.255.0.0

tool: D25: 255.255.255.0

tool: D21: 255.255.255.255

tool: D41: %hhu.%hhu.%hhu.%hhu

assistant: ```c
int submask_prefixtomask(int prefixlen, char *ip_str) {
  unsigned int ip_num = 0;
  int i = 0;
  int j = 0;
  if (ip_str == NULL)
    return -1;
  if (prefixlen > 32)
    return -1;
  if (prefixlen == 8)
    strcpy(ip_str, "255.0.0.0");
  if (prefixlen == 16)
    strcpy(ip_str, "255.255.0.0");
  if (prefixlen == 24)
    strcpy(ip_str, "255.255.255.0");
  if (prefixlen == 32)
    strcpy(ip_str, "255.255.255.255");
  for (i = prefixlen, j = 31; i > 0; i--, j--) {
    ip_num += (1 << j);
  }
  sprintf(ip_str, "%hhu.%hhu.%hhu.%hhu", (ip_num >> 24) & 0xff, (ip_num >> 16) & 0xff, (ip_num >> 8) & 0xff, ip_num & 0xff);
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<submask_prefixtomask>:
  endbr64
  cmp    $0x20,%edi
  jg     L80
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %edi,%ebp
  mov    %rsi,%rbx
  test   %rsi,%rsi
  je     L116
  cmp    $0x8,%edi
  je     L86
  cmp    $0x10,%edi
  je     L125
  cmp    $0x18,%edi
  je     L16
L131:
  cmp    $0x20,%ebp
  je     L12
L64:
  test   %ebp,%ebp
  jle    L126
L48:
  mov    $0x1f,%ecx
  mov    $0x0,%eax
  mov    $0x1,%edi
  lea    -0x1f(%rbp),%esi
L6:
  mov    %edi,%edx
  shl    %cl,%edx
  add    %edx,%eax
  sub    $0x1,%ecx
  lea    (%rsi,%rcx,1),%edx
  test   %edx,%edx
  jg     L6
L79:
  movzbl %ah,%edi
  mov    %edi,%r8d
  mov    %eax,%ecx
  shr    $0x10,%ecx
  movzbl %cl,%ecx
  mov    %eax,%edx
  shr    $0x18,%edx
  movzbl %al,%r9d
  lea    D23(%rip),%rsi
  mov    %rbx,%rdi
  call   <sprintf@plt>
  mov    $0x0,%eax
L120:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L86:
  lea    D21(%rip),%rsi
  mov    %rbx,%rdi
  call   <strcpy@plt>
  jmp    L131
L125:
  lea    D35(%rip),%rsi
  mov    %rbx,%rdi
  call   <strcpy@plt>
  jmp    L64
L16:
  lea    D17(%rip),%rsi
  mov    %rbx,%rdi
  call   <strcpy@plt>
  jmp    L48
L12:
  lea    D29(%rip),%rsi
  mov    %rbx,%rdi
  call   <strcpy@plt>
  jmp    L48
L126:
  mov    $0x0,%eax
  jmp    L79
L116:
  mov    $0xffffffff,%eax
  jmp    L120
L80:
  mov    $0xffffffff,%eax
  ret
```

tool_calls: name: retrieve_data
arguments: label: D23
data_type: string
name: retrieve_data
arguments: label: D21
data_type: string
name: retrieve_data
arguments: label: D35
data_type: string
name: retrieve_data
arguments: label: D17
data_type: string
name: retrieve_data
arguments: label: D29
data_type: string

tool: D23: %hhu.%hhu.%hhu.%hhu

tool: D21: 255.0.0.0

tool: D35: 255.255.0.0

tool: D17: 255.255.255.0

tool: D29: 255.255.255.255

assistant: ```c
int submask_prefixtomask(int prefixlen, char *ip_str) {
  unsigned int ip_num = 0;
  int i = 0;
  int j = 0;
  if (ip_str == NULL)
    return -1;
  if (prefixlen > 32)
    return -1;
  if (prefixlen == 8)
    strcpy(ip_str, "255.0.0.0");
  if (prefixlen == 16)
    strcpy(ip_str, "255.255.0.0");
  if (prefixlen == 24)
    strcpy(ip_str, "255.255.255.0");
  if (prefixlen == 32)
    strcpy(ip_str, "255.255.255.255");
  for (i = prefixlen, j = 31; i > 0; i--, j--) {
    ip_num += (1 << j);
  }
  sprintf(ip_str, "%hhu.%hhu.%hhu.%hhu", (ip_num >> 24) & 0xff, (ip_num >> 16) & 0xff, (ip_num >> 8) & 0xff, ip_num & 0xff);
  return 0;
}
```