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/*
* Copyright (C) 2007 by CERN/IT/GD/ITR
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: dpm_ping.c,v $ $Revision: 1.1 $ $Date: 2007/05/09 06:38:31 $ CERN IT-GD/ITR Jean-Philippe Baud";
#endif /* not lint */
/* dpm_ping - check server alive and return version number */
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#if defined(_WIN32)
#include <winsock2.h>
#else
#include <unistd.h>
#include <netinet/in.h>
#endif
#include "dpm_api.h"
#include "dpm.h"
#include "marshall.h"
#include "serrno.h"
int DLL_DECL
dpm_ping(char *host, char *info)
{
int c;
char func[16];
gid_t gid;
int msglen;
char *q;
char *rbp;
char repbuf[256];
char *sbp;
char sendbuf[REQBUFSZ];
struct dpm_api_thread_info *thip;
uid_t uid;
strcpy (func, "dpm_ping");
if (dpm_apiinit (&thip))
return (-1);
uid = geteuid();
gid = getegid();
#if defined(_WIN32)
if (uid < 0 || gid < 0) {
dpm_errmsg (func, DP053);
serrno = SENOMAPFND;
return (-1);
}
#endif
if (! info) {
serrno = EFAULT;
return (-1);
}
/* Build request header */
sbp = sendbuf;
marshall_LONG (sbp, DPM_MAGIC);
marshall_LONG (sbp, DPM_PING);
q = sbp; /* save pointer. The next field will be updated */
msglen = 3 * LONGSIZE;
marshall_LONG (sbp, msglen);
/* Build request body */
marshall_LONG (sbp, uid);
marshall_LONG (sbp, gid);
msglen = sbp - sendbuf;
marshall_LONG (q, msglen); /* update length field */
c = send2dpm (host, sendbuf, msglen, repbuf, sizeof(repbuf), NULL, NULL);
if (c == 0) {
rbp = repbuf;
unmarshall_STRING (rbp, info);
}
return (c);
}
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