enc_svrattrl.c

openPBS的开放源代码

/*
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* Copyright (c) 1999-2000 Veridian Information Solutions, Inc.
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static char ident[] = "@(#) $RCSfile: enc_svrattrl.c,v $ $Revision: 2.1.10.4 $";

/*
 * encode_DIS_svrattrl() - encode a list of server "svrattrl" structures
 *
 *	The first item encoded is a unsigned integer, a count of the
 *	number of svrattrl entries in the linked list.  This is encoded
 *	even when there are no svrattrl entries in the list.
 *
 *	Each individual entry is then encoded as:
 *		u int	size of the three strings (name, resource, value)
 *			including the terminating nulls
 *		string	attribute name
 *		u int	1 or 0 if resource name does or does not follow
 *		string	resource name (if one)
 *		string  value of attribute/resource
 *		u int	"op" of attrlop
 *
 *	Note, the encoding of a svrattrl is the same as the encoding of
 *	the pbs_ifl.h structures "attrl" and "attrlop".  Any one of the 
 *	three forms can be decoded into any of the three with the possible
 *	loss of the "flags" field (which is the "op" of the attrlop).
 */

#include <pbs_config.h>   /* the master config generated by configure */

#include "libpbs.h"
#include "list_link.h"
#include "attribute.h"
#include "dis.h"

int encode_DIS_svrattrl(sock, psattl)
	int	  sock;
	svrattrl *psattl;
{
	unsigned int ct = 0;
	unsigned int name_len;
	svrattrl *ps;
	int rc;

	/* count how many */

	for (ps = psattl; ps; ps = (svrattrl *)GET_NEXT(ps->al_link)) {
		++ct;
	}

	if (rc = diswui(sock, ct))
		return rc;

	for (ps = psattl; ps; ps = (svrattrl *)GET_NEXT(ps->al_link)) {
		/* length of three strings */
		name_len = (int)strlen(ps->al_atopl.name) +
			   (int)strlen(ps->al_atopl.value) + 2;
		if (ps->al_atopl.resource)
			name_len += strlen(ps->al_atopl.resource) + 1;

		if (rc = diswui(sock, name_len))
			break;
		if (rc = diswst(sock, ps->al_atopl.name))
			break;
		if (ps->al_rescln) {	/* has a resource name */
			if (rc = diswui(sock, 1))
				break;
			if (rc = diswst(sock, ps->al_atopl.resource))
				break;
		} else {
			if (rc = diswui(sock, 0))	/* no resource name */
				break;
		}
		if ( (rc = diswst(sock, ps->al_atopl.value))	||
		     (rc = diswui(sock, (unsigned int)ps->al_op)) )
			break;
	}
	return rc;
}