user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rsi,%r14
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  cmp    $0x2,%edi
  jle    L39
L19:
  mov    0x8(%r14),%rsi
  lea    0x8(%rsp),%rdi
  call   <readFiletoBuffer@plt>
  mov    %rax,%r12
  mov    0x10(%r14),%rsi
  lea    0x10(%rsp),%rdi
  call   <readFiletoBuffer@plt>
  mov    %rax,%rbp
  mov    0x10(%rsp),%rax
  cmp    %rax,0x8(%rsp)
  jne    L18
L49:
  mov    0x10(%rsp),%rdx
  mov    0x8(%rsp),%rsi
  lea    D49(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    0x10(%rsp),%r13
  mov    %r13,%r15
  add    0x8(%rsp),%r15
  mov    %r15,%rdi
  call   <malloc@plt>
  mov    %rax,%rbx
  mov    $0x0,%eax
L57:
  movzbl 0x0(%rbp,%rax,1),%edx
  mov    %dl,0x3(%rbx,%rax,2)
  movzbl 0x1(%rbp,%rax,1),%edx
  mov    %dl,0x2(%rbx,%rax,2)
  movzbl (%r12,%rax,1),%edx
  mov    %dl,0x1(%rbx,%rax,2)
  movzbl 0x1(%r12,%rax,1),%edx
  mov    %dl,(%rbx,%rax,2)
  add    $0x2,%rax
  cmp    %rax,%r13
  jae    L57
  mov    0x18(%r14),%rdx
  mov    %r15,%rsi
  mov    %rbx,%rdi
  call   <writeBuffertoFile@plt>
  mov    0x18(%r14),%rsi
  lea    D40(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %r12,%rdi
  call   <free@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  mov    %rbx,%rdi
  call   <free@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L3
  mov    $0x0,%eax
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L39:
  mov    (%rsi),%rsi
  lea    D44(%rip),%rdi
  call   <printf@plt>
  lea    D47(%rip),%rdi
  call   <puts@plt>
  mov    $0x0,%edi
  call   <exit@plt>
  jmp    L19
L18:
  lea    D34(%rip),%rdi
  call   <puts@plt>
  mov    $0x0,%edi
  call   <exit@plt>
  jmp    L49
L3:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: label: D49
data_type: string
name: extract_symbolic_data
arguments: label: D40
data_type: string
name: extract_symbolic_data
arguments: label: D44
data_type: string
name: extract_symbolic_data
arguments: label: D47
data_type: string
name: extract_symbolic_data
arguments: label: D34
data_type: string

tool: D49: Input File size: H %d bytes, L %d bytes


tool: D40: Completed write:%s


tool: D44: Usage:%s <In-File-H> <In-File-L> <Out-File>


tool: D47: This tool can help you to merge hi-lo to one binary file

tool: D34: File length isn't equal! aborting!

assistant: ```c
int main(int argc, char *argv[]) {
  unsigned char *bufferh, *bufferl, *buffero;
  unsigned char s;
  size_t sizeh, sizel, sizeo, i;
  if (argc < 3) {
    printf("Usage:%s <In-File-H> <In-File-L> <Out-File>\n", argv[0]);
    printf("This tool can help you to merge hi-lo to one binary file\n");
    exit(0);
  }
  bufferh = readFiletoBuffer(&sizeh, argv[1]);
  bufferl = readFiletoBuffer(&sizel, argv[2]);
  if (sizeh != sizel) {
    printf("File length isn't equal! aborting!\n");
    exit(0);
  }
  printf("Input File size: H %d bytes, L %d bytes\n", sizeh, sizel);
  sizeo = sizeh + sizel;
  buffero = malloc(sizeo);
  for (i = 0; i <= sizel; i += 2) {
    buffero[2 * i + 3] = bufferl[i];
    buffero[2 * i + 2] = bufferl[i + 1];
    buffero[2 * i + 1] = bufferh[i];
    buffero[2 * i + 0] = bufferh[i + 1];
  }
  writeBuffertoFile(buffero, sizeo, argv[3]);
  printf("Completed write:%s\n", argv[3]);
  free(bufferh);
  free(bufferl);
  free(buffero);
}
```