user: What would the C source look like for the assembly code provided here?

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  movq   $0x0,-0x20(%rbp)
  movq   $0x0,-0x18(%rbp)
  lea    D91(%rip),%rax
  mov    %rax,-0x10(%rbp)
  lea    D82(%rip),%rax
  mov    %rax,-0x8(%rbp)
  lea    D20(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    -0x10(%rbp),%rax
  lea    D66(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x18(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  jne    L29
  lea    D58(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    $0x1,%eax
  jmp    L23
L29:
  movw   $0x0,-0x22(%rbp)
  jmp    L62
L21:
  movswl -0x22(%rbp),%edx
  mov    -0x18(%rbp),%rax
  lea    D19(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <fprintf@plt>
  movzwl -0x22(%rbp),%eax
  add    $0x1,%eax
  mov    %ax,-0x22(%rbp)
L62:
  cmpw   $0xff,-0x22(%rbp)
  jle    L21
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  mov    -0x10(%rbp),%rax
  mov    %rax,%rsi
  lea    D113(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    -0x8(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <check_sha256_sum@plt>
  mov    %rax,-0x20(%rbp)
  cmpq   $0x0,-0x20(%rbp)
  jne    L61
  lea    D102(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  jmp    L17
L61:
  mov    -0x8(%rbp),%rcx
  mov    -0x20(%rbp),%rax
  mov    $0x40,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcmp@plt>
  test   %rax,%rax
  jne    L77
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  jmp    L17
L77:
  lea    D18(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    -0x8(%rbp),%rdx
  mov    -0x20(%rbp),%rax
  mov    %rdx,%r8
  lea    D45(%rip),%rdx
  mov    %rdx,%rcx
  mov    %rax,%rdx
  lea    D92(%rip),%rax
  mov    %rax,%rsi
  lea    D89(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
L17:
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <remove@plt>
  mov    $0x0,%eax
L23:
  leave
  ret
```

tool_calls: name: unpack_data
arguments: label: D91
type_guessed: string
name: unpack_data
arguments: label: D82
type_guessed: string
name: unpack_data
arguments: label: D20
type_guessed: string
name: unpack_data
arguments: label: D66
type_guessed: string
name: unpack_data
arguments: label: D58
type_guessed: string
name: unpack_data
arguments: label: D19
type_guessed: string
name: unpack_data
arguments: label: D113
type_guessed: string
name: unpack_data
arguments: label: D102
type_guessed: string
name: unpack_data
arguments: label: D3
type_guessed: string
name: unpack_data
arguments: label: D18
type_guessed: string
name: unpack_data
arguments: label: D45
type_guessed: string
name: unpack_data
arguments: label: D92
type_guessed: string
name: unpack_data
arguments: label: D89
type_guessed: string

tool: D91: test_sha256.dat

tool: D82: 40aff2e9d2d8922e47afd4648e6967497158785fbd1da870e7110266bf944880

tool: D20: Running test for SHA256:


tool: D66: wb

tool: D58: Cannot write test file!

tool: D19: %c

tool: D113: Checking file %s ... 

tool: D102: CORRECT!


tool: D3: Memory Error!


tool: D18: FALSE!

tool: D45: Assumed:

tool: D92: Calculated:

tool: D89: %-12s%s
%-12s%s



assistant: ```c
int main(void) {
  short i;
  unsigned char *ascii = NULL;
  FILE *fp = NULL;
  char *filename = "test_sha256.dat";
  char *assumed = "40aff2e9d2d8922e47afd4648e6967497158785fbd1da870e7110266bf944880";
  printf("Running test for SHA256:\n\n");
  fp = fopen(filename, "wb");
  if (!fp) {
    printf("Cannot write test file!\n");
    return 1;
  }
  for (i = 0x00; i <= 0xFF; i++) {
    fprintf(fp, "%c", i);
  }
  fclose(fp);
  printf("Checking file %s ... ", filename);
  ascii = check_sha256_sum(filename, (unsigned char *)assumed);
  if (ascii == NULL) {
    printf("CORRECT!\n\n");
  } else {
    if (memcmp(ascii, assumed, 64) == 0) {
      printf("Memory Error!\n\n");
    } else {
      printf("FALSE!\n");
      printf("%-12s%s\n%-12s%s\n\n", "Calculated:", ascii, "Assumed:", assumed);
      free(ascii);
    }
  }
  remove(filename);
  return 0;
}
```