sae_getn.c

来自「TCP-IP红宝书源代码」· C语言 代码 · 共 40 行

/* sae_getn.c - sae_getn */

#include <conf.h>
#include <kernel.h>
#include <network.h>

#ifdef	SNMP

#include <snmp.h>
#include <mib.h>
#include <asn1.h>

/*------------------------------------------------------------------------
 * sae_getn - perform a getnext on a variable in the IPAddr Entry Table
 *------------------------------------------------------------------------
 */
int
sae_getn(struct snbentry *bindl, struct mib_info *mip, int numifaces)
{
	int 	field, iface, oidi;

	if (sae_match(bindl, &iface, &field, numifaces) == SYSERR)
		return SERR_NO_SUCH;
	if ((iface = sae_findnext(iface, numifaces)) == -1) {
		iface = sae_findnext(-1, numifaces);	
		if (++field > SNUMF_AETAB) 
			return (*mip->mi_next->mi_func)
				(bindl, mip->mi_next, SOP_GETF);
	}
	/* The fixed part of the objid is correct. Update the rest	*/
	oidi = SAE_OIDLEN;

	bindl->sb_oid.id[oidi++] = (u_short) field;
	sip2ocpy(&bindl->sb_oid.id[oidi], nif[iface].ni_ip);
	bindl->sb_oid.len = oidi + IP_ALEN;

	return sae_get(bindl, numifaces);
}
#endif	/* SNMP */