inituser.c

C++编程实践与技巧一书各章节的源码

//--------------------------------------------------------------------
//   In this and all other sample and example code, 
//   use the #define and #include statements listed 
//   under #includes and #defines.

#include <stdio.h>
#include <windows.h>
#include <wincrypt.h>
void HandleError(char *s);

void main(void){

//--------------------------------------------------------------------
// This program lists all of the certificates in a system certificate
// store and all of the property identifier numbers of those 
// certificates. 

//--------------------------------------------------------------------
// Declare and initialize variables.

HCERTSTORE       hCertStore;        
PCCERT_CONTEXT   pCertContext=NULL;      
char pszNameString[256];
char pszStoreName[256];
void*            pvData;
DWORD            cbData;
DWORD            dwPropId = 0; 
            // Zero must be used on the first
            // call to the function. After that,
            // the last returned property identifier is passed.

//--------------------------------------------------------------------
//  Begin processing. Get the name of the system certificate store 
//  to be enumerated. Output here is to stderr so that the program can 
//  be run from the command line and stdout can be redirected to a 
//  file.

fprintf(stderr,"Please enter the store name:");
scanf("%s",pszStoreName);
fprintf(stderr,"The store name is %s .\n",pszStoreName);

//--------------------------------------------------------------------
// Open a system certificate store.

if ( hCertStore = CertOpenSystemStore(
     NULL,
     pszStoreName))
{
     fprintf(stderr,"The %s store has been opened. \n", pszStoreName);
}
else
{
// If the store was not opened, exit to an error routine.
     HandleError("The store was not opened.");
}

//--------------------------------------------------------------------
// Use CertEnumCertificatesInStore to get the certificates 
// from the open store. 

while(pCertContext= CertEnumCertificatesInStore(
     hCertStore,
     pCertContext))
{
//--------------------------------------------------------------------
// A certificate was retrieved. Continue.

if(CertGetNameString(
   pCertContext,
   CERT_NAME_SIMPLE_DISPLAY_TYPE,
   0,
   NULL,
   pszNameString,
   128))
{
   printf("\nCertificate for %s \n",pszNameString);
}
else
   fprintf(stderr,"CertGetName failed. \n");

//--------------------------------------------------------------------
// Loop to find all of the property identifiers for the specified  
// certificate. The loop continues until 
// CertEnumCertificateContextProperties returns zero.

while(dwPropId = CertEnumCertificateContextProperties(
       pCertContext, // The context whose properties are to be listed.
       dwPropId))    // Number of the last property found. This must 
                     // be zero to find the first property identifier.
{
//--------------------------------------------------------------------
// When the loop is executed, a property identifier has been found.
// Print the property number.

   printf("Property # %d found->", dwPropId);

//--------------------------------------------------------------------
//  Indicate the kind of property found.

   switch(dwPropId)
   {
     case CERT_FRIENDLY_NAME_PROP_ID:
     {
       printf("Friendly name: ");
       break;
     }
     case CERT_SIGNATURE_HASH_PROP_ID:
     {
       printf("Signature hash identifier ");
       break;
     }
     case CERT_KEY_PROV_HANDLE_PROP_ID:
     {
       printf("KEY PROVE HANDLE");
       break;
     }
     case CERT_KEY_PROV_INFO_PROP_ID:
     {
       printf("KEY PROV INFO PROP ID ");
       break;
     }
     case CERT_SHA1_HASH_PROP_ID:
     {
        printf("SHA1 HASH identifier");
        break;
     }
     case CERT_MD5_HASH_PROP_ID:
     {
        printf("md5 hash identifier ");
        break;
     }
     case CERT_KEY_CONTEXT_PROP_ID:
     {
        printf("KEY CONTEXT PROP identifier");
        break;
     }
     case CERT_KEY_SPEC_PROP_ID:
     {
        printf("KEY SPEC PROP identifier");
        break;
      }
      case CERT_ENHKEY_USAGE_PROP_ID:
      {
        printf("ENHKEY USAGE PROP identifier");
        break;
      }
      case CERT_NEXT_UPDATE_LOCATION_PROP_ID:
      {
        printf("NEXT UPDATE LOCATION PROP identifier");
        break;
      }
      case CERT_PVK_FILE_PROP_ID:
      {
         printf("PVK FILE PROP identifier ");
         break;
      }
      case CERT_DESCRIPTION_PROP_ID:
      {
        printf("DESCRIPTION PROP identifier ");
        break;
      }
      case CERT_ACCESS_STATE_PROP_ID:
      {
        printf("ACCESS STATE PROP identifier ");
        break;
      }
      case CERT_SMART_CARD_DATA_PROP_ID:
      {
         printf("SMAART_CARD DATA PROP identifier ");
         break;
      }
      case CERT_EFS_PROP_ID:
      {
        printf("EFS PROP identifier ");
        break;
      }
      case CERT_FORTEZZA_DATA_PROP_ID:
      {
        printf("FORTEZZA DATA PROP identifier ");
        break;
      }
      case CERT_ARCHIVED_PROP_ID:
      {
        printf("ARCHIVED PROP identifier ");
        break;
      }
      case CERT_KEY_IDENTIFIER_PROP_ID:
      {
        printf("KEY IDENTIFIER PROP identifier ");
        break;
      }
      case CERT_AUTO_ENROLL_PROP_ID:
      {
        printf("AUTO ENROLL identifier. ");
        break;
      }
   } // End switch

//--------------------------------------------------------------------
// Retrieve information on the property by first getting the size 
// of the property size. 
// For details, see CertGetCertificateContextProperty.

   if(CertGetCertificateContextProperty(
         pCertContext, 
         dwPropId , 
         NULL, 
         &cbData))
    {
    //  Continue.
    }
    else
    {  
    // If the first call to the function failed,
    // exit to an error routine.
        HandleError("Call #1 to GetCertContextProperty failed.");
    }
//--------------------------------------------------------------------
// The call succeeded. Use the size to allocate memory 
// for the property.
   
   if(pvData = (void*)malloc(cbData))
   {
   // Memory is allocated. Continue.
   }
   else
   {
   // If memory allocation failed, exit to an error routine.
      HandleError("Memory allocation failed.");
   }
   //-----------------------------------------------------------------
   // Allocation succeeded. Retrieve the property data.
   
   if(CertGetCertificateContextProperty(
      pCertContext,
      dwPropId,
      pvData, 
      &cbData))
    {
    // The data has been retrieved. Continue.
    }
    else
    {
    // If error occurred in the second call, exit to an error routine.
      HandleError("Call #2 failed.");
    }
    //----------------------------------------------------------------
    // Show the results.

   printf("The Property Content is %d \n", pvData);
     
   //-----------------------------------------------------------------
   // Free the certificate context property memory.
    
   free(pvData);
  }  // End inner while
} // End outer while

//--------------------------------------------------------------------
// Clean up.

CertFreeCertificateContext(pCertContext);
CertCloseStore(hCertStore,0);
printf("The function completed successfully. \n");
} // End of main

//--------------------------------------------------------------------
//  This example uses the function HandleError, a simple error
//  handling function, to print an error message to the standard error 
//  (stderr) file and exit the program. 
//  For most applications, replace this function with one 
//  that does more extensive error reporting.

void HandleError(char *s)
{
    fprintf(stderr,"An error occurred in running the program. \n");
    fprintf(stderr,"%s\n",s);
    fprintf(stderr, "Error number %x.\n", GetLastError());
    fprintf(stderr, "Program terminating. \n");
    exit(1);
} // End of HandleError