ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 下面的汇编指令对应的C源代码是什么:

```asm
<strncpy>:
  endbr64
  mov    %rdi,%rax
  test   %rdx,%rdx
  je     L38
  mov    %rdi,%rcx
  mov    $0x0,%r8d
L46:
  add    $0x1,%rcx
  movzbl (%rsi,%r8,1),%r9d
  mov    %r9b,-0x1(%rcx)
  test   %r9b,%r9b
  je     L10
  add    $0x1,%r8
  cmp    %r8,%rdx
  jne    L46
  ret
L10:
  cmp    %r8,%rdx
  jbe    L35
  sub    %r8,%rdx
  add    %rcx,%rdx
L6:
  add    $0x1,%rcx
  movb   $0x0,-0x1(%rcx)
  cmp    %rdx,%rcx
  jne    L6
L38:
  ret
L35:
  ret
```

assistant: ```c
char *strncpy(char *d, const char *s, size_t c) {
  size_t i;
  char *tmp = d;
  for (i = 0; i < c; i++) {
    *d++ = *s;
    if (*s++ == 0) {
      break;
    }
  }
  for (; i < c; i++) {
    *d++ = 0;
  }
  return tmp;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<strncpy>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  test   %rdx,%rdx
  je     L8
  xor    %eax,%eax
  jmp    L28
  nopw   0x0(%rax,%rax,1)
L47:
  add    $0x1,%rax
  cmp    %rax,%rdx
  je     L8
L28:
  movzbl (%rsi,%rax,1),%ecx
  add    $0x1,%rdi
  mov    %cl,-0x1(%rdi)
  test   %cl,%cl
  jne    L47
  cmp    %rax,%rdx
  jbe    L8
  sub    %rax,%rdx
  xor    %esi,%esi
  call   <memset@plt>
L8:
  mov    %r12,%rax
  pop    %r12
  ret
```

assistant: ```c
char *strncpy(char *d, const char *s, size_t c) {
  size_t i;
  char *tmp = d;
  for (i = 0; i < c; i++) {
    *d++ = *s;
    if (*s++ == 0) {
      break;
    }
  }
  for (; i < c; i++) {
    *d++ = 0;
  }
  return tmp;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<strncpy>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  test   %rdx,%rdx
  je     L39
  xor    %eax,%eax
  jmp    L4
  nopw   0x0(%rax,%rax,1)
L47:
  add    $0x1,%rax
  cmp    %rax,%rdx
  je     L39
L4:
  movzbl (%rsi,%rax,1),%ecx
  add    $0x1,%rdi
  mov    %cl,-0x1(%rdi)
  test   %cl,%cl
  jne    L47
  cmp    %rax,%rdx
  jbe    L39
  sub    %rax,%rdx
  xor    %esi,%esi
  call   <memset@plt>
L39:
  mov    %r12,%rax
  pop    %r12
  ret
```

assistant: ```c
char *strncpy(char *d, const char *s, size_t c) {
  size_t i;
  char *tmp = d;
  for (i = 0; i < c; i++) {
    *d++ = *s;
    if (*s++ == 0) {
      break;
    }
  }
  for (; i < c; i++) {
    *d++ = 0;
  }
  return tmp;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<is_utf8_well_formed>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  and    $0xfe,%eax
  cmp    $0xfe,%eax
  jne    L75
  mov    $0x0,%eax
  jmp    L99
L75:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <utf_len@plt>
  mov    %eax,-0x4(%rbp)
  cmpl   $0x1,-0x4(%rbp)
  jne    L39
  mov    $0x1,%eax
  jmp    L99
L39:
  cmpl   $0x2,-0x4(%rbp)
  jne    L79
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xc1,%al
  ja     L18
  mov    $0x0,%eax
  jmp    L99
L79:
  mov    $0x8,%eax
  sub    -0x4(%rbp),%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    %edx,%eax
  neg    %eax
  mov    %al,-0x9(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%edx
  movzbl -0x9(%rbp),%eax
  cmp    %eax,%edx
  jne    L18
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%edx
  movzbl -0x9(%rbp),%eax
  and    %edx,%eax
  cmp    $0x80,%eax
  jne    L18
  mov    $0x0,%eax
  jmp    L99
L18:
  movl   $0x1,-0x8(%rbp)
  jmp    L28
L66:
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  and    $0xc0,%eax
  cmp    $0x80,%eax
  je     L34
  mov    $0x0,%eax
  jmp    L99
L34:
  addl   $0x1,-0x8(%rbp)
L28:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jl     L66
  mov    $0x1,%eax
L99:
  leave
  ret
```

assistant: ```c
int is_utf8_well_formed(const char *s) {
  int i;
  int len;
  if ((((s[0]) & 0xFE) == 0xFE))
    return (0);
  len = utf_len((char)s[0]);
  if (len == 1)
    return (1);
  if (len == 2) {
    if ((unsigned char)(s[0]) < 0xC2)
      return (0);
  } else {
    unsigned char mask;
    mask = (~((1 << (8 - len)) - 1)) & 0xFF;
    if (s[0] == mask && (s[1] & mask) == 0x80)
      return (0);
  }
  for (i = 1; i < len; i++)
    if (!(((s[i]) & 0xC0) == 0x80))
      return (0);
  return (1);
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<is_utf8_well_formed>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  movsbl (%rdi),%edi
  mov    %edi,%edx
  and    $0xfe,%edx
  mov    $0x0,%eax
  cmp    $0xfe,%edx
  je     L43
  call   <utf_len@plt>
  cmp    $0x1,%eax
  je     L43
  cmp    $0x2,%eax
  je     L87
  cmp    $0x1,%eax
  jle    L35
  mov    $0x1,%ecx
L66:
  movsbl (%rbx,%rcx,1),%edx
  and    $0xc0,%edx
  cmp    $0x80,%edx
  jne    L2
  add    $0x1,%rcx
  cmp    %ecx,%eax
  jg     L66
  mov    $0x1,%eax
  jmp    L43
L87:
  mov    $0x1,%ecx
  cmpb   $0xc1,(%rbx)
  ja     L66
  mov    $0x0,%eax
  jmp    L43
L35:
  mov    $0x1,%eax
  jmp    L43
L2:
  mov    $0x0,%eax
L43:
  pop    %rbx
  ret
```

assistant: ```c
int is_utf8_well_formed(const char *s) {
  int i;
  int len;
  if ((((s[0]) & 0xFE) == 0xFE))
    return (0);
  len = utf_len((char)s[0]);
  if (len == 1)
    return (1);
  if (len == 2) {
    if ((unsigned char)(s[0]) < 0xC2)
      return (0);
  } else {
    unsigned char mask;
    mask = (~((1 << (8 - len)) - 1)) & 0xFF;
    if (s[0] == mask && (s[1] & mask) == 0x80)
      return (0);
  }
  for (i = 1; i < len; i++)
    if (!(((s[i]) & 0xC0) == 0x80))
      return (0);
  return (1);
}
```
user: Translate the below assembly code into C programming language:

```asm
<is_utf8_well_formed>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  movsbl (%rdi),%edi
  mov    %edi,%eax
  and    $0xfe,%eax
  cmp    $0xfe,%eax
  je     L84
  xor    %eax,%eax
  call   <utf_len@plt>
  cmp    $0x1,%eax
  je     L79
  cmp    $0x2,%eax
  je     L54
  mov    $0x1,%ecx
  cmp    $0x1,%eax
  jg     L77
  jmp    L38
  cs nopw 0x0(%rax,%rax,1)
L85:
  add    $0x1,%rcx
  cmp    %ecx,%eax
  jle    L38
L77:
  movsbl (%rbx,%rcx,1),%edx
  and    $0xc0,%edx
  cmp    $0x80,%edx
  je     L85
L84:
  xor    %eax,%eax
L79:
  pop    %rbx
  ret
  xchg   %ax,%ax
L38:
  mov    $0x1,%eax
  pop    %rbx
  ret
  nopw   0x0(%rax,%rax,1)
L54:
  cmpb   $0xc1,(%rbx)
  jbe    L84
  mov    $0x1,%ecx
  jmp    L77
```

assistant: ```c
int is_utf8_well_formed(const char *s) {
  int i;
  int len;
  if ((((s[0]) & 0xFE) == 0xFE))
    return (0);
  len = utf_len((char)s[0]);
  if (len == 1)
    return (1);
  if (len == 2) {
    if ((unsigned char)(s[0]) < 0xC2)
      return (0);
  } else {
    unsigned char mask;
    mask = (~((1 << (8 - len)) - 1)) & 0xFF;
    if (s[0] == mask && (s[1] & mask) == 0x80)
      return (0);
  }
  for (i = 1; i < len; i++)
    if (!(((s[i]) & 0xC0) == 0x80))
      return (0);
  return (1);
}
```
user: Translate the below assembly code into C programming language:

```asm
<is_utf8_well_formed>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  movsbl (%rdi),%edi
  mov    %edi,%eax
  and    $0xfe,%eax
  cmp    $0xfe,%eax
  je     L5
  xor    %eax,%eax
  call   <utf_len@plt>
  cmp    $0x1,%eax
  je     L21
  cmp    $0x2,%eax
  je     L6
  mov    $0x1,%ecx
  cmp    $0x1,%eax
  jg     L28
  jmp    L84
  cs nopw 0x0(%rax,%rax,1)
L42:
  add    $0x1,%rcx
  cmp    %ecx,%eax
  jle    L84
L28:
  movsbl (%rbx,%rcx,1),%edx
  and    $0xc0,%edx
  cmp    $0x80,%edx
  je     L42
L5:
  xor    %eax,%eax
L21:
  pop    %rbx
  ret
  xchg   %ax,%ax
L84:
  mov    $0x1,%eax
  pop    %rbx
  ret
  nopw   0x0(%rax,%rax,1)
L6:
  cmpb   $0xc1,(%rbx)
  jbe    L5
  mov    $0x1,%ecx
  jmp    L28
```

assistant: ```c
int is_utf8_well_formed(const char *s) {
  int i;
  int len;
  if ((((s[0]) & 0xFE) == 0xFE))
    return (0);
  len = utf_len((char)s[0]);
  if (len == 1)
    return (1);
  if (len == 2) {
    if ((unsigned char)(s[0]) < 0xC2)
      return (0);
  } else {
    unsigned char mask;
    mask = (~((1 << (8 - len)) - 1)) & 0xFF;
    if (s[0] == mask && (s[1] & mask) == 0x80)
      return (0);
  }
  for (i = 1; i < len; i++)
    if (!(((s[i]) & 0xC0) == 0x80))
      return (0);
  return (1);
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<decrypt>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %esi,-0x2c(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  mov    %r8,-0x48(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    $0x0,%eax
  call   <EVP_CIPHER_CTX_new@plt>
  mov    %rax,-0x10(%rbp)
  cmpq   $0x0,-0x10(%rbp)
  jne    L31
  mov    $0x0,%eax
  call   <handleErrors@plt>
L31:
  mov    $0x0,%eax
  call   <EVP_aes_256_ctr@plt>
  mov    %eax,%esi
  mov    -0x40(%rbp),%rcx
  mov    -0x38(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  mov    %rcx,%r8
  mov    %rdx,%rcx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <EVP_DecryptInit_ex@plt>
  cmp    $0x1,%eax
  je     L33
  mov    $0x0,%eax
  call   <handleErrors@plt>
L33:
  mov    -0x2c(%rbp),%edi
  mov    -0x28(%rbp),%rcx
  lea    -0x18(%rbp),%rdx
  mov    -0x48(%rbp),%rsi
  mov    -0x10(%rbp),%rax
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   <EVP_DecryptUpdate@plt>
  cmp    $0x1,%eax
  je     L17
  mov    $0x0,%eax
  call   <handleErrors@plt>
L17:
  mov    -0x18(%rbp),%eax
  mov    %eax,-0x14(%rbp)
  mov    -0x18(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x48(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  lea    -0x18(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <EVP_DecryptFinal_ex@plt>
  cmp    $0x1,%eax
  je     L28
  mov    $0x0,%eax
  call   <handleErrors@plt>
L28:
  mov    -0x18(%rbp),%eax
  add    %eax,-0x14(%rbp)
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <EVP_CIPHER_CTX_free@plt>
  mov    -0x14(%rbp),%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L27
  call   <__stack_chk_fail@plt>
L27:
  leave
  ret
```

assistant: ```c
int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, unsigned char *iv, unsigned char *plaintext) {
  EVP_CIPHER_CTX *ctx;
  int len;
  int plaintext_len;
  if (!(ctx = EVP_CIPHER_CTX_new())) {
    handleErrors();
  }
  if (EVP_DecryptInit_ex(ctx, EVP_aes_256_ctr(), NULL, key, iv) != 1) {
    handleErrors();
  }
  if (EVP_DecryptUpdate(ctx, plaintext, &len, ciphertext, ciphertext_len) != 1) {
    handleErrors();
  }
  plaintext_len = len;
  if (EVP_DecryptFinal_ex(ctx, plaintext + len, &len) != 1) {
    handleErrors();
  }
  plaintext_len += len;
  EVP_CIPHER_CTX_free(ctx);
  return plaintext_len;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<decrypt>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%r12
  mov    %esi,%r13d
  mov    %rdx,%r14
  mov    %rcx,%r15
  mov    %r8,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <EVP_CIPHER_CTX_new@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L71
L1:
  mov    $0x0,%eax
  call   <EVP_aes_256_ctr@plt>
  mov    %eax,%esi
  mov    %r15,%r8
  mov    %r14,%rcx
  mov    $0x0,%edx
  mov    %rbx,%rdi
  call   <EVP_DecryptInit_ex@plt>
  cmp    $0x1,%eax
  jne    L83
L22:
  lea    0x4(%rsp),%rdx
  mov    %r13d,%r8d
  mov    %r12,%rcx
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <EVP_DecryptUpdate@plt>
  cmp    $0x1,%eax
  jne    L81
L35:
  mov    0x4(%rsp),%r12d
  lea    0x4(%rsp),%rdx
  movslq %r12d,%rax
  lea    0x0(%rbp,%rax,1),%rsi
  mov    %rbx,%rdi
  call   <EVP_DecryptFinal_ex@plt>
  cmp    $0x1,%eax
  jne    L0
L5:
  add    0x4(%rsp),%r12d
  mov    %rbx,%rdi
  call   <EVP_CIPHER_CTX_free@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L62
  mov    %r12d,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L71:
  mov    $0x0,%eax
  call   <handleErrors@plt>
  jmp    L1
L83:
  mov    $0x0,%eax
  call   <handleErrors@plt>
  jmp    L22
L81:
  mov    $0x0,%eax
  call   <handleErrors@plt>
  jmp    L35
L0:
  mov    $0x0,%eax
  call   <handleErrors@plt>
  jmp    L5
L62:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, unsigned char *iv, unsigned char *plaintext) {
  EVP_CIPHER_CTX *ctx;
  int len;
  int plaintext_len;
  if (!(ctx = EVP_CIPHER_CTX_new())) {
    handleErrors();
  }
  if (EVP_DecryptInit_ex(ctx, EVP_aes_256_ctr(), NULL, key, iv) != 1) {
    handleErrors();
  }
  if (EVP_DecryptUpdate(ctx, plaintext, &len, ciphertext, ciphertext_len) != 1) {
    handleErrors();
  }
  plaintext_len = len;
  if (EVP_DecryptFinal_ex(ctx, plaintext + len, &len) != 1) {
    handleErrors();
  }
  plaintext_len += len;
  EVP_CIPHER_CTX_free(ctx);
  return plaintext_len;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<decrypt>:
  endbr64
  push   %r15
  mov    %rcx,%r15
  push   %r14
  mov    %rdx,%r14
  push   %r13
  mov    %esi,%r13d
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  push   %rbx
  mov    %r8,%rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <EVP_CIPHER_CTX_new@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L33
L58:
  xor    %eax,%eax
  call   <EVP_aes_256_ctr@plt>
  xor    %edx,%edx
  mov    %r15,%r8
  mov    %r14,%rcx
  mov    %eax,%esi
  mov    %rbp,%rdi
  call   <EVP_DecryptInit_ex@plt>
  cmp    $0x1,%eax
  je     L16
  xor    %eax,%eax
  call   <handleErrors@plt>
L16:
  lea    0x4(%rsp),%r14
  mov    %r13d,%r8d
  mov    %r12,%rcx
  mov    %rbx,%rsi
  mov    %r14,%rdx
  mov    %rbp,%rdi
  call   <EVP_DecryptUpdate@plt>
  cmp    $0x1,%eax
  je     L31
  xor    %eax,%eax
  call   <handleErrors@plt>
L31:
  movslq 0x4(%rsp),%rax
  mov    %r14,%rdx
  mov    %rbp,%rdi
  lea    (%rbx,%rax,1),%rsi
  mov    %rax,%r12
  call   <EVP_DecryptFinal_ex@plt>
  cmp    $0x1,%eax
  je     L1
  xor    %eax,%eax
  call   <handleErrors@plt>
L1:
  mov    %rbp,%rdi
  add    0x4(%rsp),%r12d
  call   <EVP_CIPHER_CTX_free@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L24
  add    $0x18,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  xchg   %ax,%ax
L33:
  xor    %eax,%eax
  call   <handleErrors@plt>
  jmp    L58
L24:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, unsigned char *iv, unsigned char *plaintext) {
  EVP_CIPHER_CTX *ctx;
  int len;
  int plaintext_len;
  if (!(ctx = EVP_CIPHER_CTX_new())) {
    handleErrors();
  }
  if (EVP_DecryptInit_ex(ctx, EVP_aes_256_ctr(), NULL, key, iv) != 1) {
    handleErrors();
  }
  if (EVP_DecryptUpdate(ctx, plaintext, &len, ciphertext, ciphertext_len) != 1) {
    handleErrors();
  }
  plaintext_len = len;
  if (EVP_DecryptFinal_ex(ctx, plaintext + len, &len) != 1) {
    handleErrors();
  }
  plaintext_len += len;
  EVP_CIPHER_CTX_free(ctx);
  return plaintext_len;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<decrypt>:
  endbr64
  push   %r15
  mov    %rcx,%r15
  push   %r14
  mov    %rdx,%r14
  push   %r13
  mov    %esi,%r13d
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  push   %rbx
  mov    %r8,%rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <EVP_CIPHER_CTX_new@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L6
L37:
  xor    %eax,%eax
  call   <EVP_aes_256_ctr@plt>
  xor    %edx,%edx
  mov    %r15,%r8
  mov    %r14,%rcx
  mov    %eax,%esi
  mov    %rbp,%rdi
  call   <EVP_DecryptInit_ex@plt>
  cmp    $0x1,%eax
  je     L16
  xor    %eax,%eax
  call   <handleErrors@plt>
L16:
  lea    0x4(%rsp),%r14
  mov    %r13d,%r8d
  mov    %r12,%rcx
  mov    %rbx,%rsi
  mov    %r14,%rdx
  mov    %rbp,%rdi
  call   <EVP_DecryptUpdate@plt>
  cmp    $0x1,%eax
  je     L2
  xor    %eax,%eax
  call   <handleErrors@plt>
L2:
  movslq 0x4(%rsp),%rax
  mov    %r14,%rdx
  mov    %rbp,%rdi
  lea    (%rbx,%rax,1),%rsi
  mov    %rax,%r12
  call   <EVP_DecryptFinal_ex@plt>
  cmp    $0x1,%eax
  je     L13
  xor    %eax,%eax
  call   <handleErrors@plt>
L13:
  mov    %rbp,%rdi
  add    0x4(%rsp),%r12d
  call   <EVP_CIPHER_CTX_free@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L20
  add    $0x18,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  xchg   %ax,%ax
L6:
  xor    %eax,%eax
  call   <handleErrors@plt>
  jmp    L37
L20:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, unsigned char *iv, unsigned char *plaintext) {
  EVP_CIPHER_CTX *ctx;
  int len;
  int plaintext_len;
  if (!(ctx = EVP_CIPHER_CTX_new())) {
    handleErrors();
  }
  if (EVP_DecryptInit_ex(ctx, EVP_aes_256_ctr(), NULL, key, iv) != 1) {
    handleErrors();
  }
  if (EVP_DecryptUpdate(ctx, plaintext, &len, ciphertext, ciphertext_len) != 1) {
    handleErrors();
  }
  plaintext_len = len;
  if (EVP_DecryptFinal_ex(ctx, plaintext + len, &len) != 1) {
    handleErrors();
  }
  plaintext_len += len;
  EVP_CIPHER_CTX_free(ctx);
  return plaintext_len;
}
```
user: What is the c source code of the assembly code below?

```asm
<writeKeyPairToFile>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x18(%rbp),%rax
  lea    D36(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jne    L34
  mov    -0x18(%rbp),%rax
  mov    %rax,%rsi
  lea    D6(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0xffffffff,%eax
  jmp    L22
L34:
  mov    -0x8(%rbp),%rdx
  mov    -0x20(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <fputs@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <ferror@plt>
  test   %rax,%rax
  je     L13
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  mov    -0x18(%rbp),%rax
  mov    %rax,%rsi
  lea    D34(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0xffffffff,%eax
  jmp    L22
L13:
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  mov    -0x18(%rbp),%rdx
  mov    -0x20(%rbp),%rax
  mov    %rax,%rsi
  lea    D13(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
L22:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D36
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D6
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D34
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D13
type_infered: string

tool: D36: w

tool: D6: Could not open file '%s' for writing keypair


tool: D34: Error writing keypair to file '%s'.


tool: D13: Wrote keypair '%s' to file '%s'.


assistant: ```c
int writeKeyPairToFile(const char *fileName, const char *keyPair) {
  FILE *file;
  file = fopen(fileName, "w");
  if (file == NULL) {
    printf("Could not open file '%s' for writing keypair\n", fileName);
    return -1;
  }
  fputs(keyPair, file);
  if (ferror(file) != 0) {
    fclose(file);
    printf("Error writing keypair to file '%s'.\n", fileName);
    return -1;
  }
  fclose(file);
  printf("Wrote keypair '%s' to file '%s'.\n", keyPair, fileName);
  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
<writeKeyPairToFile>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbp
  mov    %rsi,%r12
  lea    D37(%rip),%rsi
  call   <fopen@plt>
  test   %rax,%rax
  je     L34
  mov    %rax,%rbx
  mov    %rax,%rsi
  mov    %r12,%rdi
  call   <fputs@plt>
  mov    %rbx,%rdi
  call   <ferror@plt>
  test   %rax,%rax
  jne    L33
  mov    %rbx,%rdi
  call   <fclose@plt>
  mov    %rbp,%rdx
  mov    %r12,%rsi
  lea    D17(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
L21:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L34:
  mov    %rbp,%rsi
  lea    D9(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0xffffffff,%eax
  jmp    L21
L33:
  mov    %rbx,%rdi
  call   <fclose@plt>
  mov    %rbp,%rsi
  lea    D23(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0xffffffff,%eax
  jmp    L21
```

tool_calls: name: disassemble_data
arguments: label: D37
datatype: string
name: disassemble_data
arguments: label: D17
datatype: string
name: disassemble_data
arguments: label: D9
datatype: string
name: disassemble_data
arguments: label: D23
datatype: string

tool: D37: w

tool: D17: Wrote keypair '%s' to file '%s'.


tool: D9: Could not open file '%s' for writing keypair


tool: D23: Error writing keypair to file '%s'.


assistant: ```c
int writeKeyPairToFile(const char *fileName, const char *keyPair) {
  FILE *file;
  file = fopen(fileName, "w");
  if (file == NULL) {
    printf("Could not open file '%s' for writing keypair\n", fileName);
    return -1;
  }
  fputs(keyPair, file);
  if (ferror(file) != 0) {
    fclose(file);
    printf("Error writing keypair to file '%s'.\n", fileName);
    return -1;
  }
  fclose(file);
  printf("Wrote keypair '%s' to file '%s'.\n", keyPair, fileName);
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<writeKeyPairToFile>:
  endbr64
  push   %r13
  mov    %rsi,%r13
  lea    D12(%rip),%rsi
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  call   <fopen@plt>
  test   %rax,%rax
  je     L23
  mov    %rax,%rbp
  mov    %rax,%rsi
  mov    %r13,%rdi
  call   <fputs@plt>
  mov    %rbp,%rdi
  call   <ferror@plt>
  mov    %rbp,%rdi
  test   %rax,%rax
  jne    L12
  call   <fclose@plt>
  mov    %r12,%rdx
  mov    %r13,%rsi
  xor    %eax,%eax
  lea    D7(%rip),%rdi
  call   <printf@plt>
  xor    %eax,%eax
L39:
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nop
L12:
  call   <fclose@plt>
  mov    %r12,%rsi
  lea    D29(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xffffffff,%eax
  jmp    L39
L23:
  mov    %r12,%rsi
  lea    D8(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xffffffff,%eax
  jmp    L39
```

tool_calls: name: read_data
arguments: data_label: D12
datatype: string
name: read_data
arguments: data_label: D7
datatype: string
name: read_data
arguments: data_label: D29
datatype: string
name: read_data
arguments: data_label: D8
datatype: string

tool: D12: w

tool: D7: Wrote keypair '%s' to file '%s'.


tool: D29: Error writing keypair to file '%s'.


tool: D8: Could not open file '%s' for writing keypair


assistant: ```c
int writeKeyPairToFile(const char *fileName, const char *keyPair) {
  FILE *file;
  file = fopen(fileName, "w");
  if (file == NULL) {
    printf("Could not open file '%s' for writing keypair\n", fileName);
    return -1;
  }
  fputs(keyPair, file);
  if (ferror(file) != 0) {
    fclose(file);
    printf("Error writing keypair to file '%s'.\n", fileName);
    return -1;
  }
  fclose(file);
  printf("Wrote keypair '%s' to file '%s'.\n", keyPair, fileName);
  return 0;
}
```