TestPathCchFindExtension.c

#include <stdio.h>
#include <winpr/crt.h>
#include <winpr/path.h>
#include <winpr/tchar.h>
#include <winpr/winpr.h>
 
static const char testPathExtension[] = "C:\\Windows\\System32\\cmd.exe";
 
int TestPathCchFindExtension(int argc, char* argv[])
{
  PCSTR pszExt = nullptr;
  PCSTR pszTmp = nullptr;
  HRESULT hr = 0;
 
  WINPR_UNUSED(argc);
  WINPR_UNUSED(argv);
 
  /* Test invalid args */
 
  hr = PathCchFindExtensionA(nullptr, sizeof(testPathExtension), &pszExt);
  if (SUCCEEDED(hr))
  {
    printf("PathCchFindExtensionA unexpectedly succeeded with pszPath = nullptr. result: "
           "0x%08" PRIX32 "\n",
           hr);
    return -1;
  }
 
  hr = PathCchFindExtensionA(testPathExtension, 0, &pszExt);
  if (SUCCEEDED(hr))
  {
    printf("PathCchFindExtensionA unexpectedly succeeded with cchPath = 0. result: 0x%08" PRIX32
           "\n",
           hr);
    return -1;
  }
 
  hr = PathCchFindExtensionA(testPathExtension, sizeof(testPathExtension), nullptr);
  if (SUCCEEDED(hr))
  {
    printf("PathCchFindExtensionA unexpectedly succeeded with ppszExt = nullptr. result: "
           "0x%08" PRIX32 "\n",
           hr);
    return -1;
  }
 
  /* Test missing null-termination of pszPath */
 
  hr = PathCchFindExtensionA("c:\\45.789", 9, &pszExt); /* nb: correct would be 10 */
  if (SUCCEEDED(hr))
  {
    printf("PathCchFindExtensionA unexpectedly succeeded with unterminated pszPath. result: "
           "0x%08" PRIX32 "\n",
           hr);
    return -1;
  }
 
  /* Test passing of an empty terminated string (must succeed) */
 
  pszExt = nullptr;
  pszTmp = "";
  hr = PathCchFindExtensionA(pszTmp, 1, &pszExt);
  if (hr != S_OK)
  {
    printf("PathCchFindExtensionA failed with an empty terminated string. result: 0x%08" PRIX32
           "\n",
           hr);
    return -1;
  }
  /* pszExt must point to the strings terminating 0 now */
  if (pszExt != pszTmp)
  {
    printf("PathCchFindExtensionA failed with an empty terminated string:  pszExt pointer "
           "mismatch\n");
    return -1;
  }
 
  /* Test a path without file extension (must succeed) */
 
  pszExt = nullptr;
  pszTmp = "c:\\4.678\\";
  hr = PathCchFindExtensionA(pszTmp, 10, &pszExt);
  if (hr != S_OK)
  {
    printf("PathCchFindExtensionA failed with a directory path. result: 0x%08" PRIX32 "\n", hr);
    return -1;
  }
  /* The extension must not have been found and pszExt must point to the
   * strings terminating nullptr now */
  if (pszExt != &pszTmp[9])
  {
    printf("PathCchFindExtensionA failed with a directory path: pszExt pointer mismatch\n");
    return -1;
  }
 
  /* Non-special tests */
 
  pszExt = nullptr;
  if (PathCchFindExtensionA(testPathExtension, sizeof(testPathExtension), &pszExt) != S_OK)
  {
    printf("PathCchFindExtensionA failure: expected S_OK\n");
    return -1;
  }
 
  if (!pszExt || strcmp(pszExt, ".exe") != 0)
  {
    printf("PathCchFindExtensionA failure: unexpected extension\n");
    return -1;
  }
 
  printf("Extension: %s\n", pszExt);
 
  return 0;
}