ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Demonstrate the C code that generates the assembly output below:

```asm
<MonthName>:
  endbr64
  cmp    $0xc,%edi
  ja     L9
  lea    D119(%rip),%rdx
  mov    %edi,%edi
  movslq (%rdx,%rdi,4),%rax
  add    %rdx,%rax
  notrack jmp *%rax
  lea    D95(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D110(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D99(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D45(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D11(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D121(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D77(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D38(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D71(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D33(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D64(%rip),%rax
  ret
  nopl   0x0(%rax,%rax,1)
  lea    D67(%rip),%rax
  ret
L9:
  lea    D6(%rip),%rax
  ret
```

tool_calls: name: read_data
arguments: label: D95
type_guessed: string
name: read_data
arguments: label: D110
type_guessed: string
name: read_data
arguments: label: D99
type_guessed: string
name: read_data
arguments: label: D45
type_guessed: string
name: read_data
arguments: label: D11
type_guessed: string
name: read_data
arguments: label: D121
type_guessed: string
name: read_data
arguments: label: D77
type_guessed: string
name: read_data
arguments: label: D38
type_guessed: string
name: read_data
arguments: label: D71
type_guessed: string
name: read_data
arguments: label: D33
type_guessed: string
name: read_data
arguments: label: D64
type_guessed: string
name: read_data
arguments: label: D67
type_guessed: string
name: read_data
arguments: label: D6
type_guessed: string

tool: D95: February

tool: D110: January

tool: D99: December

tool: D45: October

tool: D11: November

tool: D121: March

tool: D77: April

tool: D38: May

tool: D71: June

tool: D33: July

tool: D64: August

tool: D67: September

tool: D6: Illegal month

assistant: ```c
char *MonthName(int month) {
  switch (month) {
  case 1:
    return ("January");
  case 2:
    return ("February");
  case 3:
    return ("March");
  case 4:
    return ("April");
  case 5:
    return ("May");
  case 6:
    return ("June");
  case 7:
    return ("July");
  case 8:
    return ("August");
  case 9:
    return ("September");
  case 10:
    return ("October");
  case 11:
    return ("November");
  case 12:
    return ("December");
  default:
    return ("Illegal month");
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<rev_str>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  jmp    L4
L19:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  mov    %al,-0x1(%rbp)
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%edx
  mov    -0x18(%rbp),%rax
  mov    %dl,(%rax)
  mov    -0x20(%rbp),%rax
  movzbl -0x1(%rbp),%edx
  mov    %dl,(%rax)
  addq   $0x1,-0x18(%rbp)
  subq   $0x1,-0x20(%rbp)
L4:
  mov    -0x18(%rbp),%rax
  cmp    -0x20(%rbp),%rax
  jb     L19
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void rev_str(char *b, char *e) {
  char t;
  while (b < e) {
    t = *b;
    *b = *e;
    *e = t;
    ++b;
    --e;
  }
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<rev_str>:
  endbr64
  cmp    %rsi,%rdi
  jae    L17
L9:
  movzbl (%rdi),%eax
  movzbl (%rsi),%edx
  mov    %dl,(%rdi)
  mov    %al,(%rsi)
  add    $0x1,%rdi
  sub    $0x1,%rsi
  cmp    %rsi,%rdi
  jb     L9
L17:
  ret
```

assistant: ```c
void rev_str(char *b, char *e) {
  char t;
  while (b < e) {
    t = *b;
    *b = *e;
    *e = t;
    ++b;
    --e;
  }
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<rev_str>:
  endbr64
  jmp    L13
  cs nopw 0x0(%rax,%rax,1)
L18:
  movzbl (%rdi),%eax
  movzbl (%rsi),%edx
  add    $0x1,%rdi
  sub    $0x1,%rsi
  mov    %dl,-0x1(%rdi)
  mov    %al,0x1(%rsi)
L13:
  cmp    %rsi,%rdi
  jb     L18
  ret
```

assistant: ```c
void rev_str(char *b, char *e) {
  char t;
  while (b < e) {
    t = *b;
    *b = *e;
    *e = t;
    ++b;
    --e;
  }
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<rev_str>:
  endbr64
  jmp    L12
  cs nopw 0x0(%rax,%rax,1)
L18:
  movzbl (%rdi),%eax
  movzbl (%rsi),%edx
  add    $0x1,%rdi
  sub    $0x1,%rsi
  mov    %dl,-0x1(%rdi)
  mov    %al,0x1(%rsi)
L12:
  cmp    %rsi,%rdi
  jb     L18
  ret
```

assistant: ```c
void rev_str(char *b, char *e) {
  char t;
  while (b < e) {
    t = *b;
    *b = *e;
    *e = t;
    ++b;
    --e;
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<utf8ncasecmp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  jmp    L79
L80:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  mov    %al,-0x12(%rbp)
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  mov    %al,-0x11(%rbp)
  cmpb   $0x40,-0x12(%rbp)
  jbe    L68
  cmpb   $0x5a,-0x12(%rbp)
  ja     L68
  orb    $0x20,-0x12(%rbp)
L68:
  cmpb   $0x40,-0x11(%rbp)
  jbe    L15
  cmpb   $0x5a,-0x11(%rbp)
  ja     L15
  orb    $0x20,-0x11(%rbp)
L15:
  movzbl -0x12(%rbp),%eax
  cmp    -0x11(%rbp),%al
  jae    L2
  mov    $0xffffffff,%eax
  jmp    L18
L2:
  movzbl -0x12(%rbp),%eax
  cmp    -0x11(%rbp),%al
  jbe    L56
  mov    $0x1,%eax
  jmp    L18
L56:
  addq   $0x1,-0x10(%rbp)
  addq   $0x1,-0x8(%rbp)
L79:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L11
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L94
L11:
  mov    -0x38(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,-0x38(%rbp)
  test   %rax,%rax
  jne    L80
L94:
  mov    $0x0,%eax
L18:
  pop    %rbp
  ret
```

assistant: ```c
int utf8ncasecmp(const void *src1, const void *src2, size_t n) {
  const unsigned char *s1 = (const unsigned char *)src1;
  const unsigned char *s2 = (const unsigned char *)src2;
  while ((('\0' != *s1) || ('\0' != *s2)) && (0 != n--)) {
    unsigned char a = *s1;
    unsigned char b = *s2;
    if (('A' <= a) && ('Z' >= a)) {
      a |= 0x20;
    }
    if (('A' <= b) && ('Z' >= b)) {
      b |= 0x20;
    }
    if (a < b) {
      return -1;
    } else if (a > b) {
      return 1;
    }
    s1++;
    s2++;
  }
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<utf8ncasecmp>:
  endbr64
  jmp    L9
L50:
  mov    $0x0,%eax
  ret
L54:
  test   %rdx,%rdx
  je     L47
  movzbl (%rsi),%ecx
  lea    -0x41(%rax),%r8d
  cmp    $0x19,%r8b
  ja     L25
  or     $0x20,%eax
L25:
  lea    -0x41(%rcx),%r8d
  cmp    $0x19,%r8b
  ja     L52
L96:
  or     $0x20,%ecx
L52:
  cmp    %al,%cl
  ja     L33
  sub    $0x1,%rdx
  cmp    %al,%cl
  jb     L36
  add    $0x1,%rdi
  add    $0x1,%rsi
L9:
  movzbl (%rdi),%eax
  test   %al,%al
  jne    L54
  movzbl (%rsi),%ecx
  test   %cl,%cl
  je     L50
  test   %rdx,%rdx
  je     L59
  lea    -0x41(%rcx),%r8d
  cmp    $0x19,%r8b
  jbe    L96
  mov    $0xffffffff,%eax
  ret
L47:
  mov    $0x0,%eax
  ret
L33:
  mov    $0xffffffff,%eax
  ret
L36:
  mov    $0x1,%eax
  ret
L59:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int utf8ncasecmp(const void *src1, const void *src2, size_t n) {
  const unsigned char *s1 = (const unsigned char *)src1;
  const unsigned char *s2 = (const unsigned char *)src2;
  while ((('\0' != *s1) || ('\0' != *s2)) && (0 != n--)) {
    unsigned char a = *s1;
    unsigned char b = *s2;
    if (('A' <= a) && ('Z' >= a)) {
      a |= 0x20;
    }
    if (('A' <= b) && ('Z' >= b)) {
      b |= 0x20;
    }
    if (a < b) {
      return -1;
    } else if (a > b) {
      return 1;
    }
    s1++;
    s2++;
  }
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<utf8ncasecmp>:
  endbr64
  jmp    L41
  cs nopw 0x0(%rax,%rax,1)
L34:
  movzbl (%rsi),%ecx
  test   %cl,%cl
  je     L67
  test   %rdx,%rdx
  je     L67
  lea    -0x41(%rcx),%r8d
  cmp    $0x19,%r8b
  ja     L103
L86:
  or     $0x20,%ecx
L8:
  cmp    %al,%cl
  ja     L103
  sub    $0x1,%rdx
  cmp    %al,%cl
  jb     L53
  add    $0x1,%rdi
  add    $0x1,%rsi
L41:
  movzbl (%rdi),%eax
  test   %al,%al
  je     L34
  test   %rdx,%rdx
  je     L67
  lea    -0x41(%rax),%r8d
  movzbl (%rsi),%ecx
  cmp    $0x19,%r8b
  ja     L11
  or     $0x20,%eax
L11:
  lea    -0x41(%rcx),%r8d
  cmp    $0x19,%r8b
  ja     L8
  jmp    L86
  nopl   (%rax)
L67:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L103:
  mov    $0xffffffff,%eax
  ret
  cs nopw 0x0(%rax,%rax,1)
L53:
  mov    $0x1,%eax
  ret
```

assistant: ```c
int utf8ncasecmp(const void *src1, const void *src2, size_t n) {
  const unsigned char *s1 = (const unsigned char *)src1;
  const unsigned char *s2 = (const unsigned char *)src2;
  while ((('\0' != *s1) || ('\0' != *s2)) && (0 != n--)) {
    unsigned char a = *s1;
    unsigned char b = *s2;
    if (('A' <= a) && ('Z' >= a)) {
      a |= 0x20;
    }
    if (('A' <= b) && ('Z' >= b)) {
      b |= 0x20;
    }
    if (a < b) {
      return -1;
    } else if (a > b) {
      return 1;
    }
    s1++;
    s2++;
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<utf8ncasecmp>:
  endbr64
  jmp    L75
  cs nopw 0x0(%rax,%rax,1)
L42:
  movzbl (%rsi),%ecx
  test   %cl,%cl
  je     L105
  test   %rdx,%rdx
  je     L105
  lea    -0x41(%rcx),%r8d
  cmp    $0x19,%r8b
  ja     L31
L26:
  or     $0x20,%ecx
L9:
  cmp    %al,%cl
  ja     L31
  sub    $0x1,%rdx
  cmp    %al,%cl
  jb     L76
  add    $0x1,%rdi
  add    $0x1,%rsi
L75:
  movzbl (%rdi),%eax
  test   %al,%al
  je     L42
  test   %rdx,%rdx
  je     L105
  lea    -0x41(%rax),%r8d
  movzbl (%rsi),%ecx
  cmp    $0x19,%r8b
  ja     L29
  or     $0x20,%eax
L29:
  lea    -0x41(%rcx),%r8d
  cmp    $0x19,%r8b
  ja     L9
  jmp    L26
  nopl   (%rax)
L105:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L31:
  mov    $0xffffffff,%eax
  ret
  cs nopw 0x0(%rax,%rax,1)
L76:
  mov    $0x1,%eax
  ret
```

assistant: ```c
int utf8ncasecmp(const void *src1, const void *src2, size_t n) {
  const unsigned char *s1 = (const unsigned char *)src1;
  const unsigned char *s2 = (const unsigned char *)src2;
  while ((('\0' != *s1) || ('\0' != *s2)) && (0 != n--)) {
    unsigned char a = *s1;
    unsigned char b = *s2;
    if (('A' <= a) && ('Z' >= a)) {
      a |= 0x20;
    }
    if (('A' <= b) && ('Z' >= b)) {
      b |= 0x20;
    }
    if (a < b) {
      return -1;
    } else if (a > b) {
      return 1;
    }
    s1++;
    s2++;
  }
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x60,%rsp
  mov    %edi,-0x54(%rbp)
  mov    %rsi,-0x60(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movabs $0x2e2e2e2e2e243124,%rax
  mov    %rax,-0x14(%rbp)
  movl   $0x2e2e2e,-0xc(%rbp)
  lea    D7(%rip),%rax
  mov    %rax,-0x38(%rbp)
  mov    $0x0,%edi
  call   <time@plt>
  mov    %rax,-0x30(%rbp)
  mov    $0x0,%eax
  call   <getpid@plt>
  mov    %rax,%rdx
  mov    -0x30(%rbp),%rax
  shr    $0xe,%rax
  and    $0x30000,%eax
  xor    %rdx,%rax
  mov    %rax,-0x28(%rbp)
  movl   $0x0,-0x44(%rbp)
  jmp    L9
L49:
  mov    -0x44(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x66666667,%rdx,%rdx
  shr    $0x20,%rdx
  sar    %edx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  cltq
  mov    -0x30(%rbp,%rax,8),%rsi
  mov    -0x44(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x66666667,%rdx,%rdx
  shr    $0x20,%rdx
  sar    %edx
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%edx
  mov    %edx,%ecx
  shl    $0x2,%ecx
  add    %edx,%ecx
  sub    %ecx,%eax
  mov    %eax,%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  add    %eax,%eax
  mov    %eax,%ecx
  shr    %cl,%rsi
  mov    %rsi,%rax
  and    $0x3f,%eax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    -0x44(%rbp),%edx
  lea    0x3(%rdx),%ecx
  movzbl (%rax),%edx
  movslq %ecx,%rax
  mov    %dl,-0x14(%rbp,%rax,1)
  addl   $0x1,-0x44(%rbp)
L9:
  cmpl   $0x7,-0x44(%rbp)
  jle    L49
  cmpl   $0x1,-0x54(%rbp)
  jg     L4
  lea    D0(%rip),%rax
  mov    %rax,%rdi
  call   <getpass@plt>
  mov    %rax,%rdx
  lea    -0x14(%rbp),%rax
  mov    %rax,%rsi
  mov    %rdx,%rdi
  call   <crypt@plt>
  mov    %rax,-0x40(%rbp)
  jmp    L33
L4:
  mov    -0x60(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%rax
  lea    -0x14(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <crypt@plt>
  mov    %rax,-0x40(%rbp)
L33:
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L38
  call   <__stack_chk_fail@plt>
L38:
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_tag: D7
type_guessed: string
name: parse_data
arguments: data_tag: D0
type_guessed: string

tool: D7: ./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

tool: D0: Password:

assistant: ```c
int main(int argc, char **argv) {
  unsigned long seed[2];
  char salt[] = "$1$........";
  const char *const seedchars = "./0123456789ABCDEFGHIJKLMNOPQRST"
                                "UVWXYZabcdefghijklmnopqrstuvwxyz";
  char *password;
  int i;
  seed[0] = time(NULL);
  seed[1] = getpid() ^ (seed[0] >> 14 & 0x30000);
  for (i = 0; i < 8; i++)
    salt[3 + i] = seedchars[(seed[i / 5] >> (i % 5) * 6) & 0x3f];
  if (argc < 2)
    password = crypt(getpass("Password:"), salt);
  else
    password = crypt(argv[1], salt);
  puts(password);
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<main>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x30,%rsp
  mov    %edi,%ebx
  mov    %rsi,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  movabs $0x2e2e2e2e2e243124,%rax
  mov    %rax,0x1c(%rsp)
  movl   $0x2e2e2e,0x24(%rsp)
  mov    $0x0,%edi
  call   <time@plt>
  mov    %rax,%r12
  mov    %rax,(%rsp)
  mov    $0x0,%eax
  call   <getpid@plt>
  shr    $0xe,%r12
  and    $0x30000,%r12d
  xor    %rax,%r12
  mov    %r12,0x8(%rsp)
  mov    $0x0,%edx
  lea    0x1f(%rsp),%rdi
  lea    D1(%rip),%rsi
L5:
  movslq %edx,%rax
  imul   $0x66666667,%rax,%rax
  sar    $0x21,%rax
  mov    %edx,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%eax
  movslq %eax,%r8
  lea    (%rax,%rax,4),%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  lea    (%rax,%rax,2),%ecx
  add    %ecx,%ecx
  mov    (%rsp,%r8,8),%rax
  shr    %cl,%rax
  and    $0x3f,%eax
  movzbl (%rsi,%rax,1),%eax
  mov    %al,(%rdi,%rdx,1)
  add    $0x1,%rdx
  cmp    $0x8,%rdx
  jne    L5
  cmp    $0x1,%ebx
  jle    L4
  lea    0x1c(%rsp),%rsi
  mov    0x8(%rbp),%rdi
  call   <crypt@plt>
  mov    %rax,%rdi
L28:
  call   <puts@plt>
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L9
  mov    $0x0,%eax
  add    $0x30,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L4:
  lea    D14(%rip),%rdi
  call   <getpass@plt>
  mov    %rax,%rdi
  lea    0x1c(%rsp),%rsi
  call   <crypt@plt>
  mov    %rax,%rdi
  jmp    L28
L9:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D1
type_guessed: string
name: parse_data
arguments: data_tag: D14
type_guessed: string

tool: D1: ./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

tool: D14: Password:

assistant: ```c
int main(int argc, char **argv) {
  unsigned long seed[2];
  char salt[] = "$1$........";
  const char *const seedchars = "./0123456789ABCDEFGHIJKLMNOPQRST"
                                "UVWXYZabcdefghijklmnopqrstuvwxyz";
  char *password;
  int i;
  seed[0] = time(NULL);
  seed[1] = getpid() ^ (seed[0] >> 14 & 0x30000);
  for (i = 0; i < 8; i++)
    salt[3 + i] = seedchars[(seed[i / 5] >> (i % 5) * 6) & 0x3f];
  if (argc < 2)
    password = crypt(getpass("Password:"), salt);
  else
    password = crypt(argv[1], salt);
  puts(password);
  return 0;
}
```
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
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %edi,%ebp
  xor    %edi,%edi
  push   %rbx
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  movabs $0x2e2e2e2e2e243124,%rax
  movl   $0x2e2e2e,0x24(%rsp)
  mov    %rax,0x1c(%rsp)
  call   <time@plt>
  mov    %rax,(%rsp)
  mov    %rax,%rbx
  xor    %eax,%eax
  call   <getpid@plt>
  lea    0x1f(%rsp),%rsi
  xor    %edx,%edx
  mov    $0xcccccccd,%edi
  mov    %rax,%r8
  mov    %rbx,%rax
  shr    $0xe,%rax
  and    $0x30000,%eax
  xor    %r8,%rax
  lea    D18(%rip),%r8
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  jmp    L45
  nopl   0x0(%rax)
L20:
  mov    %edx,%eax
  mov    %rax,%rcx
  imul   %rdi,%rcx
  shr    $0x22,%rcx
  mov    (%rsp,%rcx,8),%rbx
L45:
  imul   %rdi,%rax
  add    $0x1,%rsi
  shr    $0x22,%rax
  lea    (%rax,%rax,4),%ecx
  mov    %edx,%eax
  add    $0x1,%edx
  sub    %ecx,%eax
  lea    (%rax,%rax,2),%ecx
  add    %ecx,%ecx
  shr    %cl,%rbx
  and    $0x3f,%ebx
  movzbl (%r8,%rbx,1),%eax
  mov    %al,-0x1(%rsi)
  cmp    $0x8,%edx
  jne    L20
  cmp    $0x1,%ebp
  jle    L46
  mov    0x8(%r12),%rdi
  lea    0x1c(%rsp),%rsi
  call   <crypt@plt>
  mov    %rax,%rdi
L25:
  call   <puts@plt>
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  add    $0x30,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L46:
  lea    D0(%rip),%rdi
  call   <getpass@plt>
  lea    0x1c(%rsp),%rsi
  mov    %rax,%rdi
  call   <crypt@plt>
  mov    %rax,%rdi
  jmp    L25
L8:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: label: D18
data_type: string
name: disassemble_data
arguments: label: D0
data_type: string

tool: D18: ./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

tool: D0: Password:

assistant: ```c
int main(int argc, char **argv) {
  unsigned long seed[2];
  char salt[] = "$1$........";
  const char *const seedchars = "./0123456789ABCDEFGHIJKLMNOPQRST"
                                "UVWXYZabcdefghijklmnopqrstuvwxyz";
  char *password;
  int i;
  seed[0] = time(NULL);
  seed[1] = getpid() ^ (seed[0] >> 14 & 0x30000);
  for (i = 0; i < 8; i++)
    salt[3 + i] = seedchars[(seed[i / 5] >> (i % 5) * 6) & 0x3f];
  if (argc < 2)
    password = crypt(getpass("Password:"), salt);
  else
    password = crypt(argv[1], salt);
  puts(password);
  return 0;
}
```
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
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %edi,%ebx
  xor    %edi,%edi
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  movabs $0x2e2e2e2e2e243124,%rax
  movl   $0x2e2e2e,0x10(%rsp)
  mov    %rax,0x8(%rsp)
  call   <time@plt>
  mov    %rax,%r12
  xor    %eax,%eax
  call   <getpid@plt>
  mov    %r12,%rcx
  mov    %r12,%rsi
  mov    %r12,%rdi
  mov    %rax,%r9
  mov    %r12,%rax
  lea    D6(%rip),%rdx
  mov    %r12,%r8
  shr    $0xe,%rax
  shr    $0x18,%r12
  and    $0x3f,%ecx
  and    $0x30000,%eax
  and    $0x3f,%r12d
  shr    $0x12,%r8
  shr    $0xc,%rdi
  xor    %r9,%rax
  and    $0x3f,%r9d
  and    $0x3f,%r8d
  mov    %rax,%r10
  shr    $0xc,%rax
  movzbl (%rdx,%r9,1),%r9d
  and    $0x3f,%edi
  shr    $0x6,%r10
  and    $0x3f,%eax
  movzbl (%rdx,%r8,1),%r8d
  movzbl (%rdx,%rdi,1),%edi
  movzbl (%rdx,%rax,1),%eax
  and    $0x3f,%r10d
  shr    $0x6,%rsi
  movzbl (%rdx,%r10,1),%r10d
  and    $0x3f,%esi
  shl    $0x8,%rax
  movzbl (%rdx,%rsi,1),%esi
  or     %r10,%rax
  shl    $0x8,%rax
  or     %r9,%rax
  movzbl (%rdx,%r12,1),%r9d
  movzbl (%rdx,%rcx,1),%edx
  shl    $0x8,%rax
  or     %r9,%rax
  shl    $0x8,%rax
  or     %r8,%rax
  shl    $0x8,%rax
  or     %rdi,%rax
  shl    $0x8,%rax
  or     %rsi,%rax
  shl    $0x8,%rax
  or     %rdx,%rax
  mov    %rax,0xb(%rsp)
  cmp    $0x1,%ebx
  jle    L29
  mov    0x8(%rbp),%rdi
  lea    0x8(%rsp),%rsi
  call   <crypt@plt>
  mov    %rax,%rdi
L24:
  call   <puts@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L11
  add    $0x20,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L29:
  lea    D19(%rip),%rdi
  call   <getpass@plt>
  lea    0x8(%rsp),%rsi
  mov    %rax,%rdi
  call   <crypt@plt>
  mov    %rax,%rdi
  jmp    L24
L11:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_label: D6
type_infered: string
name: retrieve_data
arguments: data_label: D19
type_infered: string

tool: D6: ./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

tool: D19: Password:

assistant: ```c
int main(int argc, char **argv) {
  unsigned long seed[2];
  char salt[] = "$1$........";
  const char *const seedchars = "./0123456789ABCDEFGHIJKLMNOPQRST"
                                "UVWXYZabcdefghijklmnopqrstuvwxyz";
  char *password;
  int i;
  seed[0] = time(NULL);
  seed[1] = getpid() ^ (seed[0] >> 14 & 0x30000);
  for (i = 0; i < 8; i++)
    salt[3 + i] = seedchars[(seed[i / 5] >> (i % 5) * 6) & 0x3f];
  if (argc < 2)
    password = crypt(getpass("Password:"), salt);
  else
    password = crypt(argv[1], salt);
  puts(password);
  return 0;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    D16(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <sysconf@plt>
  mov    %rax,-0x20(%rbp)
  movq   $0x101,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  cmp    -0x20(%rbp),%rax
  jb     L50
  mov    $0x4d,%eax
  jmp    L55
L50:
  mov    D55(%rip),%rax
  mov    (%rax),%edx
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  mov    %edx,%ecx
  or     %eax,%ecx
  mov    D7(%rip),%rax
  mov    (%rax),%edx
  mov    D65(%rip),%rax
  mov    (%rax),%eax
  or     %eax,%edx
  mov    -0x20(%rbp),%rax
  add    %rax,%rax
  mov    $0x0,%r9d
  mov    $0xffffffff,%r8d
  mov    %rax,%rsi
  mov    $0x0,%edi
  call   <mmap@plt>
  mov    %rax,-0x10(%rbp)
  mov    D24(%rip),%rax
  mov    (%rax),%rax
  cmp    %rax,-0x10(%rbp)
  je     L51
  mov    D52(%rip),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rcx
  mov    -0x20(%rbp),%rax
  add    %rax,%rcx
  mov    -0x20(%rbp),%rax
  mov    %rax,%rsi
  mov    %rcx,%rdi
  call   <mprotect@plt>
  test   %rax,%rax
  je     L58
L51:
  mov    $0x4d,%eax
  jmp    L55
L58:
  mov    -0x20(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x20(%rbp),%rax
  sub    -0x18(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x8(%rbp),%rax
  mov    $0x2f,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <chdir@plt>
  test   %rax,%rax
  je     L38
  mov    $0x4d,%eax
  jmp    L55
L38:
  mov    $0x0,%eax
L55:
  leave
  ret
```

assistant: ```c
int main(void) {
  const size_t page_len = sysconf(_SC_PAGESIZE);
  const size_t tail_len = 257;
  if (tail_len >= page_len)
    return 77;
  void *p = mmap(NULL, page_len * 2, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
  if (p == MAP_FAILED || mprotect(p + page_len, page_len, PROT_NONE))
    return 77;
  memset(p, 0, page_len);
  char *addr = p + page_len - tail_len;
  memset(addr, '/', tail_len - 1);
  if (chdir(addr))
    return 77;
  return 0;
}
```