user: What is the c source code of the assembly code below:

```asm
<r3d_decrypt_ctr>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x450,%rsp
  mov    %rdi,-0x1428(%rbp)
  mov    %rsi,-0x1430(%rbp)
  mov    %rdx,-0x1438(%rbp)
  mov    %rcx,-0x1440(%rbp)
  mov    %r8d,-0x1444(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x1444(%rbp),%eax
  lea    0x1ff(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x9,%eax
  mov    %eax,-0x1414(%rbp)
  mov    -0x1430(%rbp),%rcx
  lea    -0x810(%rbp),%rax
  mov    $0x200,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    -0x1438(%rbp),%rcx
  lea    -0x610(%rbp),%rax
  mov    $0x200,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  movl   $0x0,-0x141c(%rbp)
  jmp    L17
L45:
  mov    -0x141c(%rbp),%ecx
  lea    -0x1410(%rbp),%rax
  mov    $0x200,%edx
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x141c(%rbp),%eax
  shl    $0x9,%eax
  movslq %eax,%rdx
  mov    -0x1428(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  lea    -0xa10(%rbp),%rax
  mov    $0x200,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  movl   $0x0,-0x1418(%rbp)
  jmp    L62
L15:
  mov    -0x1418(%rbp),%eax
  cltq
  movzbl -0x610(%rbp,%rax,1),%edx
  mov    -0x1418(%rbp),%eax
  cltq
  mov    -0x1410(%rbp,%rax,4),%eax
  xor    %eax,%edx
  mov    -0x1418(%rbp),%eax
  cltq
  mov    %dl,-0x410(%rbp,%rax,1)
  addl   $0x1,-0x1418(%rbp)
L62:
  cmpl   $0x1ff,-0x1418(%rbp)
  jle    L15
  lea    -0x210(%rbp),%rdx
  mov    -0x1430(%rbp),%rcx
  lea    -0x410(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <r3d_encrypt_block@plt>
  movl   $0x0,-0x1418(%rbp)
  jmp    L34
L26:
  mov    -0x1418(%rbp),%eax
  cltq
  movzbl -0xa10(%rbp,%rax,1),%edx
  mov    -0x1418(%rbp),%eax
  cltq
  movzbl -0x210(%rbp,%rax,1),%eax
  xor    %eax,%edx
  mov    -0x1418(%rbp),%eax
  cltq
  mov    %dl,-0xc10(%rbp,%rax,1)
  addl   $0x1,-0x1418(%rbp)
L34:
  cmpl   $0x1ff,-0x1418(%rbp)
  jle    L26
  mov    -0x141c(%rbp),%eax
  shl    $0x9,%eax
  movslq %eax,%rdx
  mov    -0x1440(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  lea    -0xc10(%rbp),%rax
  mov    $0x200,%edx
  mov    %rax,%rsi
  mov    %rcx,%rdi
  call   <memcpy@plt>
  mov    -0x141c(%rbp),%eax
  mov    %eax,%esi
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  addl   $0x1,-0x141c(%rbp)
L17:
  mov    -0x141c(%rbp),%eax
  cmp    -0x1414(%rbp),%eax
  jl     L45
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L27
  call   <__stack_chk_fail@plt>
L27:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D7
type_infered: string

tool: D7: %d


assistant: ```c
void r3d_decrypt_ctr(unsigned char *ciphertext, unsigned char *key, unsigned char *iv, unsigned char *plaintext, int size) {
  int block_num = (size / 512);
  unsigned char plaintext_block[512];
  unsigned char ciphertext_block[512];
  unsigned char key_block[512];
  unsigned char iv_block[512];
  unsigned int i_block[512];
  unsigned char temp_block[512];
  unsigned char keystream[512];
  memcpy(key_block, key, 512);
  memcpy(iv_block, iv, 512);
  int i;
  int j;
  for (i = 0; i < block_num; i++) {
    memset(i_block, i, 512);
    memcpy(ciphertext_block, ciphertext + (i * 512), 512);
    for (j = 0; j < 512; j++) {
      temp_block[j] = iv_block[j] ^ i_block[j];
    }
    r3d_encrypt_block(temp_block, key, keystream);
    for (j = 0; j < 512; j++) {
      plaintext_block[j] = ciphertext_block[j] ^ keystream[j];
    }
    memcpy(plaintext + (i * 512), plaintext_block, 512);
    printf("%d\n", i);
  }
}
```