Example: ILE C program for setting the clock on your Coprocessor

/*-------------------------------------------------------------------*/
/* Set the clock on the  card, based on a string from            */
/* the command line.  The command line string must be of             */
/* form YYYYMMDDHHMMSSWW, where WW is the day of week (01            */
/* means Sunday and 07 means Saturday).                              */
/*                                                                   */
/*                                                                   */
/*  COPYRIGHT 5769-SS1 (C) IBM CORP. 1999                      */
/*                                                                   */
/*  This material contains programming source code for your          */
/*  consideration.  These examples have not been thoroughly          */
/*  tested under all conditions.  IBM, therefore, cannot             */
/*  guarantee or imply reliability, serviceability, or function      */
/*  of these program.  All programs contained herein are             */
/*  provided to you "AS IS".  THE IMPLIED WARRANTIES OF              */
/*  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE         */
/*  ARE EXPRESSLY DISCLAIMED.  IBM provides no program services for  */
/*  these programs and files.                                        */
/*                                                                   */
/*                                                                   */
/* Note: Input format is more fully described in Chapter 2 of        */
/*       IBM  CCA Basic Services Reference and Guide             */
/*       (SC31-8609) publication.                                    */
/*                                                                   */
/* Parameters:                                                       */
/*   char * new time 16 characters                                   */
/*                                                                   */
/* Example:                                                          */
/*   CALL PGM(SETCLOCK) PARM('1999021011375204')                     */
/*                                                                   */
/*                                                                   */
/* Note: This program assumes the device to use is                   */
/*       already identified either by defaulting to the CRP01        */
/*       device or by being explicitly named using the               */
/*       Cryptographic_Resource_Allocate verb. Also this             */
/*       device must be varied on and you must be authorized         */
/*       to use this device description.                             */
/*                                                                   */
/* Use these commands to compile this program on the system:         */
/* ADDLIBLE LIB(QCCA)                                                */
/* CRTCMOD MODULE(SETCLOCK) SRCFILE(SAMPLE)                          */
/* CRTPGM  PGM(SETCLOCK) MODULE(SETCLOCK)                            */
/*         BNDSRVPGM(QCCA/CSUACFC)                                   */
/*                                                                   */
/* Note: Authority to the CSUACFC service program in the             */
/*       QCCA library is assumed.                                    */
/*                                                                   */
/* The Common Cryptographic Architecture (CCA) verb used is          */
/* Cryptographic_Facilities_Control (CSUACFC).                       */
/*                                                                   */
/*-------------------------------------------------------------------*/


#include "csucincl.h"      /* header file for CCA Cryptographic      */
                           /* Service Provider                       */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

/*-------------------------------------------------------------------*/
/* standard return codes                                             */
/*-------------------------------------------------------------------*/

#define ERROR    -1
#define OK        0
#define WARNING   4


void help(void)
{
    printf("\n\nThis program loads the time and date into the  card.\n");

    printf("It requires a single command line parameter containing the \n");

    printf("new date and time in the form YYYYMMDDHHMMSSWW, where WW is the\n");

    printf("day of the week, 01 meaning Sunday and 07 meaning Saturday.\n\n");

}


int main(int argc, char *argv[])

{
    /*-------------------------------------------------------------------*/
    /* standard CCA parameters                                           */
    /*-------------------------------------------------------------------*/

    long return_code = 0;
    long reason_code = 0;
    long exit_data_length = 2;
    char exit_data[4];
    char rule_array[2][8];
    long rule_array_count = 2;

    /*-------------------------------------------------------------------*/
    /* fields unique to this sample program                              */
    /*-------------------------------------------------------------------*/

    long verb_data_length;
    char * verb_data;


    if (argc != 2)
    {
        help();

        return(ERROR);
    }

    if (strlen(argv[1]) != 16)
    {
        printf("Your input string is not the right length.");

        help();

        return(ERROR);
    }


    /* set keywords in the rule array                                   */

    memcpy(rule_array,"ADAPTER1SETCLOCK",16);

    verb_data_length = 16;

    /* copy keyboard input for new time                                 */

    verb_data = argv[1];

    /* Set the clock to the time the user gave us                       */

    CSUACFC( &return_code,
             &reason_code,
             &exit_data_length,
             exit_data,
             &rule_array_count,
             (char *)rule_array,
             &verb_data_length,
             verb_data);

    if ( (return_code == OK) | (return_code == WARNING) )
    {
        printf("Clock was successfully set.\nReturn/");

        printf("reason codes %ld/%ld\n\n", return_code, reason_code);

        return(OK);
    }

    else
    {
        printf("An error occurred while setting the clock.\nReturn");

        printf("/reason codes %ld/%ld\n\n", return_code, reason_code);

        return(ERROR);
    }
}