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   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  cmp    $0x2,%edi
  jle    L253
  mov    %edi,%ebp
  mov    0x8(%rsi),%rdi
  mov    %rsi,%rbx
  lea    D167(%rip),%rsi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L212
  cmp    $0x4,%ebp
  jne    L559
  mov    0x10(%rbx),%rdi
  lea    D52(%rip),%rsi
  call   <fopen@plt>
  mov    %rax,%r14
  test   %rax,%rax
  je     L451
  xor    %esi,%esi
  mov    $0x2,%edx
  mov    %rax,%rdi
  call   <fseek@plt>
  mov    %r14,%rdi
  call   <ftell@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  mov    %r14,%rdi
  mov    %eax,%r13d
  call   <fseek@plt>
  mov    %r13d,%edi
  call   <malloc@plt>
  mov    %r13d,%edi
  mov    %rax,%rbp
  call   <malloc@plt>
  mov    %rbp,%rdi
  mov    %r14,%rcx
  mov    %r13d,%edx
  mov    $0x1,%esi
  mov    %rax,%r12
  call   <fread@plt>
  mov    %r14,%rdi
  call   <fclose@plt>
  test   %r13d,%r13d
  je     L504
  lea    0x1(%rbp),%rcx
  mov    %r12,%rdx
  lea    -0x1(%r13),%eax
  sub    %rcx,%rdx
  cmp    $0xe,%rdx
  jbe    L338
  cmp    $0x6,%eax
  jbe    L338
  cmp    $0xe,%eax
  jbe    L169
  mov    %r13d,%edx
  xor    %eax,%eax
  shr    $0x4,%edx
  shl    $0x4,%rdx
  nopl   0x0(%rax)
L508:
  movdqu 0x0(%rbp,%rax,1),%xmm0
  movups %xmm0,(%r12,%rax,1)
  add    $0x10,%rax
  cmp    %rdx,%rax
  jne    L508
  mov    %r13d,%edx
  and    $0xfffffff0,%edx
  mov    %edx,%eax
  cmp    %edx,%r13d
  je     L504
  mov    %r13d,%ecx
  sub    %edx,%ecx
  lea    -0x1(%rcx),%esi
  cmp    $0x6,%esi
  jbe    L432
L490:
  mov    0x0(%rbp,%rdx,1),%rsi
  mov    %rsi,(%r12,%rdx,1)
  mov    %ecx,%edx
  and    $0xfffffff8,%edx
  add    %edx,%eax
  cmp    %ecx,%edx
  je     L504
L432:
  movslq %eax,%rdx
  movzbl 0x0(%rbp,%rdx,1),%ecx
  mov    %cl,(%r12,%rdx,1)
  lea    0x1(%rax),%edx
  cmp    %edx,%r13d
  jbe    L504
  movslq %edx,%rdx
  movzbl 0x0(%rbp,%rdx,1),%ecx
  mov    %cl,(%r12,%rdx,1)
  lea    0x2(%rax),%edx
  cmp    %r13d,%edx
  jae    L504
  movslq %edx,%rdx
  movzbl 0x0(%rbp,%rdx,1),%ecx
  mov    %cl,(%r12,%rdx,1)
  lea    0x3(%rax),%edx
  cmp    %edx,%r13d
  jbe    L504
  movslq %edx,%rdx
  movzbl 0x0(%rbp,%rdx,1),%ecx
  mov    %cl,(%r12,%rdx,1)
  lea    0x4(%rax),%edx
  cmp    %edx,%r13d
  jbe    L504
  movslq %edx,%rdx
  movzbl 0x0(%rbp,%rdx,1),%ecx
  mov    %cl,(%r12,%rdx,1)
  lea    0x5(%rax),%edx
  cmp    %edx,%r13d
  jbe    L504
  movslq %edx,%rdx
  add    $0x6,%eax
  movzbl 0x0(%rbp,%rdx,1),%ecx
  mov    %cl,(%r12,%rdx,1)
  cmp    %eax,%r13d
  jbe    L504
  cltq
  movzbl 0x0(%rbp,%rax,1),%edx
  mov    %dl,(%r12,%rax,1)
L504:
  mov    %rbp,%rdi
  mov    %r13d,%edx
  mov    %r12,%rsi
  call   <encrypt@plt>
  mov    0x18(%rbx),%rdi
  lea    D7(%rip),%rsi
  call   <fopen@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L536
  mov    %rax,%rcx
  mov    $0x4,%edx
  lea    0x4(%rsp),%rdi
  mov    $0x1,%esi
  movl   $0x1020304,0x4(%rsp)
  call   <fwrite@plt>
  mov    %rbp,%rcx
  mov    %r13d,%edx
L100:
  mov    %r12,%rdi
  mov    $0x1,%esi
  call   <fwrite@plt>
  mov    %rbp,%rdi
  call   <fclose@plt>
L165:
  xor    %eax,%eax
L37:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L430
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L212:
  mov    0x8(%rbx),%rdi
  lea    D76(%rip),%rsi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L235
  cmp    $0x4,%ebp
  jne    L439
  mov    0x10(%rbx),%rdi
  lea    D52(%rip),%rsi
  call   <fopen@plt>
  mov    %rax,%r15
  test   %rax,%rax
  je     L24
  xor    %esi,%esi
  mov    $0x2,%edx
  mov    %rax,%rdi
  call   <fseek@plt>
  mov    %r15,%rdi
  call   <ftell@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  mov    %r15,%rdi
  mov    %eax,%r13d
  call   <fseek@plt>
  cmp    $0x4,%r13d
  jbe    L281
  mov    %r13d,%edi
  lea    -0x4(%r13),%r14d
  call   <malloc@plt>
  mov    %r14d,%edi
  mov    %rax,%rbp
  call   <malloc@plt>
  mov    %r15,%rcx
  mov    %r13d,%edx
  mov    $0x1,%esi
  mov    %rbp,%rdi
  mov    %rax,%r12
  call   <fread@plt>
  mov    %r15,%rdi
  call   <fclose@plt>
  movzbl 0x0(%rbp),%eax
  sub    $0x1,%eax
  cmp    $0x3,%al
  ja     L204
  lea    0x5(%rbp),%rcx
  mov    %r12,%rdx
  lea    0x4(%rbp),%rdi
  sub    %rcx,%rdx
  lea    -0x5(%r13),%eax
  cmp    $0xe,%rdx
  jbe    L333
  cmp    $0x6,%eax
  jbe    L333
  cmp    $0xe,%eax
  jbe    L372
  mov    %r14d,%edx
  xor    %eax,%eax
  shr    $0x4,%edx
  shl    $0x4,%rdx
  nopw   0x0(%rax,%rax,1)
L541:
  movdqu 0x4(%rbp,%rax,1),%xmm1
  movups %xmm1,(%r12,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rdx
  jne    L541
  mov    %r14d,%ecx
  and    $0xfffffff0,%ecx
  mov    %ecx,%edx
  cmp    %ecx,%r14d
  je     L233
  mov    %r13d,%eax
  sub    %ecx,%eax
  lea    -0x4(%rax),%esi
  sub    $0x5,%eax
  cmp    $0x6,%eax
  jbe    L462
L360:
  mov    0x4(%rbp,%rcx,1),%rax
  mov    %rax,(%r12,%rcx,1)
  mov    %esi,%eax
  and    $0xfffffff8,%eax
  add    %eax,%edx
  cmp    %eax,%esi
  je     L233
L462:
  movslq %edx,%rax
  movzbl 0x4(%rbp,%rax,1),%ecx
  mov    %cl,(%r12,%rax,1)
  lea    0x1(%rdx),%eax
  cmp    %eax,%r14d
  jbe    L233
  cltq
  movzbl 0x4(%rbp,%rax,1),%ecx
  mov    %cl,(%r12,%rax,1)
  lea    0x2(%rdx),%eax
  cmp    %eax,%r14d
  jbe    L233
  cltq
  movzbl 0x4(%rbp,%rax,1),%ecx
  mov    %cl,(%r12,%rax,1)
  lea    0x3(%rdx),%eax
  cmp    %eax,%r14d
  jbe    L233
  cltq
  movzbl 0x4(%rbp,%rax,1),%ecx
  mov    %cl,(%r12,%rax,1)
  lea    0x4(%rdx),%eax
  cmp    %eax,%r14d
  jbe    L233
  cltq
  movzbl 0x4(%rbp,%rax,1),%ecx
  mov    %cl,(%r12,%rax,1)
  lea    0x5(%rdx),%eax
  cmp    %eax,%r14d
  jbe    L233
  cltq
  add    $0x6,%edx
  movzbl 0x4(%rbp,%rax,1),%ecx
  mov    %cl,(%r12,%rax,1)
  cmp    %edx,%r14d
  jbe    L233
  movslq %edx,%rdx
  movzbl 0x4(%rbp,%rdx,1),%eax
  mov    %al,(%r12,%rdx,1)
L233:
  mov    %r14d,%edx
  mov    %r12,%rsi
  call   <decrypt@plt>
  mov    0x18(%rbx),%rdi
  lea    D7(%rip),%rsi
  call   <fopen@plt>
  mov    %r14d,%edx
  mov    %rax,%rbp
  mov    %rax,%rcx
  test   %rax,%rax
  jne    L100
L536:
  mov    0x10(%rbx),%rsi
  lea    D137(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
L442:
  or     $0xffffffff,%eax
  jmp    L37
L338:
  mov    %r13d,%ecx
  xor    %eax,%eax
  nopl   0x0(%rax)
L308:
  movzbl 0x0(%rbp,%rax,1),%edx
  mov    %dl,(%r12,%rax,1)
  add    $0x1,%rax
  cmp    %rcx,%rax
  jne    L308
  jmp    L504
L235:
  mov    0x8(%rbx),%rdi
  lea    D31(%rip),%rsi
  call   <strcmp@plt>
  test   %rax,%rax
  je     L165
  mov    0x8(%rbx),%rdi
  lea    D56(%rip),%rsi
  call   <strcmp@plt>
  test   %rax,%rax
  je     L165
  mov    0x8(%rbx),%rsi
  lea    D94(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  or     $0xffffffff,%eax
  jmp    L37
L333:
  xor    %eax,%eax
L113:
  movzbl 0x4(%rbp,%rax,1),%edx
  mov    %dl,(%r12,%rax,1)
  add    $0x1,%rax
  cmp    %eax,%r14d
  ja     L113
  jmp    L233
L169:
  mov    %r13d,%ecx
  xor    %edx,%edx
  xor    %eax,%eax
  jmp    L490
L372:
  mov    %r14d,%esi
  xor    %ecx,%ecx
  xor    %edx,%edx
  jmp    L360
L559:
  lea    D75(%rip),%rdi
  call   <puts@plt>
  jmp    L442
L253:
  lea    D127(%rip),%rdi
  call   <puts@plt>
  or     $0xffffffff,%eax
  jmp    L37
L439:
  lea    D71(%rip),%rdi
  call   <puts@plt>
  or     $0xffffffff,%eax
  jmp    L37
L451:
  mov    0x10(%rbx),%rsi
  lea    D50(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L442
L281:
  mov    0x10(%rbx),%rsi
  lea    D82(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    %r15,%rdi
  call   <fclose@plt>
  or     $0xffffffff,%eax
  jmp    L37
L24:
  mov    0x10(%rbx),%rsi
  lea    D50(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  or     $0xffffffff,%eax
  jmp    L37
L204:
  mov    0x10(%rbx),%rsi
  lea    D58(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  or     $0xffffffff,%eax
  jmp    L37
L430:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: label: D167
type: string
name: unpack_data
arguments: label: D52
type: string
name: unpack_data
arguments: label: D7
type: string
name: unpack_data
arguments: label: D76
type: string
name: unpack_data
arguments: label: D137
type: string
name: unpack_data
arguments: label: D31
type: string
name: unpack_data
arguments: label: D56
type: string
name: unpack_data
arguments: label: D94
type: string
name: unpack_data
arguments: label: D75
type: string
name: unpack_data
arguments: label: D127
type: string
name: unpack_data
arguments: label: D71
type: string
name: unpack_data
arguments: label: D50
type: string
name: unpack_data
arguments: label: D82
type: string
name: unpack_data
arguments: label: D58
type: string

tool: D167: encrypt

tool: D52: rb

tool: D7: wb

tool: D76: decrypt

tool: D137: Could not open output file %s, exiting now


tool: D31: archive

tool: D56: unarchive

tool: D94: Unrecognized option: %s, available options are:
	encrypt
	decrypt
	archive
	unarchive


tool: D75: Expected: prog_name encrypt input output

tool: D127: Expected prog_name option filename

tool: D71: Expected: prog_name decrypt input output

tool: D50: Could not open input file %s, exiting now


tool: D82: File %s is too small


tool: D58: File %s is not encrypted


assistant: ```c
int main(int argc, char *argv[]) {
  if (argc < 3) {
    printf("Expected prog_name option filename\n");
    return -1;
  }
  if (strcmp(argv[1], "encrypt") == 0) {
    if (argc != 4) {
      printf("Expected: prog_name encrypt input output\n");
      return -1;
    }
    FILE *filep;
    filep = fopen(argv[2], "rb");
    unsigned int file_length;
    unsigned char *buffer;
    unsigned char *buffer2;
    if (filep == NULL) {
      printf("Could not open input file %s, exiting now\n", argv[2]);
      return -1;
    }
    fseek(filep, 0, 2);
    file_length = ftell(filep);
    fseek(filep, 0, 0);
    buffer = malloc(file_length * sizeof(unsigned char));
    buffer2 = malloc(file_length * sizeof(unsigned char));
    fread(buffer, sizeof(unsigned char), file_length, filep);
    fclose(filep);
    int count;
    for (count = 0; count < file_length; count++) {
      buffer2[count] = buffer[count];
    }
    encrypt(buffer, buffer2, file_length);
    filep = fopen(argv[3], "wb");
    if (filep == NULL) {
      printf("Could not open output file %s, exiting now\n", argv[2]);
      return -1;
    }
    unsigned char buf2[] = {4, 3, 2, 1};
    fwrite(buf2, sizeof(unsigned char), 4, filep);
    fwrite(buffer2, sizeof(unsigned char), file_length, filep);
    fclose(filep);
  } else if (strcmp(argv[1], "decrypt") == 0) {
    if (argc != 4) {
      printf("Expected: prog_name decrypt input output\n");
      return -1;
    }
    FILE *filep;
    filep = fopen(argv[2], "rb");
    unsigned int file_length;
    unsigned char *buffer;
    unsigned char *buffer2;
    if (filep == NULL) {
      printf("Could not open input file %s, exiting now\n", argv[2]);
      return -1;
    }
    fseek(filep, 0, 2);
    file_length = ftell(filep);
    fseek(filep, 0, 0);
    if (file_length <= 4) {
      printf("File %s is too small\n", argv[2]);
      fclose(filep);
      return -1;
    }
    buffer = malloc(file_length * sizeof(unsigned char));
    buffer2 = malloc((file_length - 4) * sizeof(unsigned char));
    fread(buffer, sizeof(unsigned char), file_length, filep);
    fclose(filep);
    if ((buffer[0] != 1) && (buffer[0] != 2) && (buffer[0] != 3) && (buffer[0] != 4)) {
      printf("File %s is not encrypted\n", argv[2]);
      return -1;
    }
    buffer = &buffer[4];
    file_length -= 4;
    int count;
    for (count = 0; count < file_length; count++) {
      buffer2[count] = buffer[count];
    }
    decrypt(buffer, buffer2, file_length);
    filep = fopen(argv[3], "wb");
    if (filep == NULL) {
      printf("Could not open output file %s, exiting now\n", argv[2]);
      return -1;
    }
    fwrite(buffer2, sizeof(unsigned char), file_length, filep);
    fclose(filep);
  } else if (strcmp(argv[1], "archive") == 0) {
  } else if (strcmp(argv[1], "unarchive") == 0) {
  } else {
    printf("Unrecognized option: %s, available options are:\n\tencrypt\n\tdecrypt\n\tarchive\n\tunarchive\n", argv[1]);
    return -1;
  }
}
```