/************************************************************************
*                                                                       *    
*  Copyright Digital Equipment Corporation 1998. All rights reserved.   *
*                                                                       *    
*  Restricted Rights: Use, duplication, or disclosure by the U.S.       *    
*  Government is subject to restrictions as set forth in subparagraph   *    
*  (c) (1) (ii) of DFARS 252.227-7013, or in FAR 52.227-19, or in FAR   *    
*  52.227-14 Alt. III, as applicable.                                   *    
*                                                                       *    
*  This software is proprietary to and embodies the confidential        *    
*  technology of Digital Equipment Corporation. Possession, use, or     *    
*  copying of this software and media is authorized only pursuant to a  *    
*  valid written license from Digital or an authorized sublicensor.     *    
*                                                                       *    
************************************************************************/

/*      chap_5_childarg.c       */

/* In this example, the arguments are placed in an array,       */
/* gargv, but they can be passed to the child explicitly as     */
/* a zero-terminated series of character strings. The child     */
/* program in this example writes the arguments that have been  */
/* it to stdout.                                                */

#include <climsgdef.h>
#include <stdio.h>
#include <stdlib.h>
#include <perror.h>
#include <processes.h>

const char *child_name = "chap_5_childarg_child.exe" ;

main()
{
    int status,
        cstatus;
    char *gargv[] =
    {"Child", "ARGC1", "ARGC2", "Parent", 0};

    if ((status = vfork()) != 0) {
        if (status < -1)
            printf("Parent - Child process failed\n");
        else {
            printf("Parent - waiting for Child\n");
            if ((status = wait(&cstatus)) == -1)
                perror("Parent - Wait failed");
            else if (cstatus == CLI$_IMAGEFNF)
                printf("Parent - Child does not exist\n");
            else
                printf("Parent - Child final status: %x\n",
                       cstatus);
        }
    }
    else {
        printf("Parent - Starting Child\n");
        if ((status = execv(child_name, gargv)) == -1) {
            perror("Parent - Exec failed");
            exit(EXIT_FAILURE);
        }
    }
}