openafs/src/venus/livesys.c

/*
 * Copyright 2000, International Business Machines Corporation and others.
 * All Rights Reserved.
 * 
 * This software has been released under the terms of the IBM Public
 * License.  For details, see the LICENSE file in the top-level source
 * directory or online at http://www.openafs.org/dl/license10.html
 */

#include <afsconfig.h>
#include <afs/param.h>

RCSID
    ("$Header$");

#include <afs/afs_args.h>
#include <rx/xdr.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netdb.h>
#include <errno.h>
#include <stdio.h>
#include <netinet/in.h>
#include <sys/stat.h>
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#include <afs/stds.h>
#include <afs/vice.h>
#include <afs/venus.h>
#include <afs/com_err.h>
#ifdef	AFS_AIX32_ENV
#include <signal.h>
#endif

#define	MAXSIZE	2048
static char space[MAXSIZE];

int
main(argc, argv)
     int argc;
     char **argv;
{
    afs_int32 code;
    struct ViceIoctl blob;
    char *input = space;
    afs_int32 setp = 0;

#ifdef	AFS_AIX32_ENV
    /*
     * The following signal action for AIX is necessary so that in case of a
     * crash (i.e. core is generated) we can include the user's data section
     * in the core dump. Unfortunately, by default, only a partial core is
     * generated which, in many cases, isn't too useful.
     */
    struct sigaction nsa;

    sigemptyset(&nsa.sa_mask);
    nsa.sa_handler = SIG_DFL;
    nsa.sa_flags = SA_FULLDUMP;
    sigaction(SIGSEGV, &nsa, NULL);
#endif

    blob.in = space;
    blob.out = space;
    blob.out_size = MAXSIZE;
    blob.in_size = sizeof(afs_int32);
    memcpy(space, &setp, sizeof(afs_int32));
    code = pioctl(0, VIOC_AFS_SYSNAME, &blob, 1);
    if (code) {
	fprintf(stderr, "livesys: %s\n", error_message(code));
	return 1;
    }
    input = space;
    memcpy(&setp, input, sizeof(afs_int32));
    input += sizeof(afs_int32);
    if (!setp) {
	fprintf(stderr, "No sysname name value was found\n");
	return 1;
    }
    printf("%s\n", input);
    return 0;
}