/* MessageServer_Release_x64.exe sha256 7911b15c4379625eaa12ff227708aa3a033bc6ac2cf6b34283136e3a62df25f1
 * Ghidra 12.1.2 decompiler output for 0x1400f9840 FUN_1400f9840
 * Pseudocode, not original source. */

int FUN_1400f9840(longlong param_1)

{
  char cVar1;
  char cVar2;
  char *pcVar3;
  int iVar4;
  undefined8 *puVar5;
  longlong lVar6;
  
  if (param_1 == 0) {
    return 0x10;
  }
  EnterCriticalSection((LPCRITICAL_SECTION)&DAT_1401bd5c0);
  iVar4 = 0;
  puVar5 = &DAT_1401b7770;
  do {
    pcVar3 = (char *)*puVar5;
    if (pcVar3 != (char *)0x0) {
      lVar6 = param_1 - (longlong)pcVar3;
      do {
        cVar1 = *pcVar3;
        cVar2 = pcVar3[lVar6];
        if (cVar1 != cVar2) break;
        pcVar3 = pcVar3 + 1;
      } while (cVar2 != '\0');
      if (cVar1 == cVar2) {
        LeaveCriticalSection((LPCRITICAL_SECTION)&DAT_1401bd5c0);
        return iVar4;
      }
    }
    iVar4 = iVar4 + 1;
    puVar5 = puVar5 + 10;
    if (0x1f < iVar4) {
      LeaveCriticalSection((LPCRITICAL_SECTION)&DAT_1401bd5c0);
      return -1;
    }
  } while( true );
}