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Current Path: /usr/src/libexec/bootpd

usr / src / libexec / bootpd /

📁 ..
📄 Announce(2.36 KB)
📄 Changes(9.82 KB)
📄 ConvOldTab.sh(3.69 KB)
📄 Installation(742 B)
📄 Makefile(322 B)
📄 Makefile.UNIX(5.33 KB)
📄 Makefile.depend(289 B)
📄 Makefile.inc(52 B)
📄 Problems(2.59 KB)
📄 README(5.18 KB)
📄 ToDo(2.18 KB)
📄 bootp.h(5.05 KB)
📄 bootpd.8(7.63 KB)
📄 bootpd.c(33.69 KB)
📄 bootpd.h(5.2 KB)
📁 bootpgw
📄 bootptab.5(10.33 KB)
📄 bootptab.cmu(4.14 KB)
📄 bootptab.mcs(2.49 KB)
📄 bptypes.h(303 B)
📄 dovend.c(9.87 KB)
📄 dovend.h(213 B)
📄 dumptab.c(8.79 KB)
📄 getether.c(9.06 KB)
📄 getether.h(82 B)
📄 getif.c(3.04 KB)
📄 getif.h(82 B)
📄 hash.c(9.95 KB)
📄 hash.h(4.72 KB)
📄 hwaddr.c(8.8 KB)
📄 hwaddr.h(900 B)
📄 lookup.c(2.28 KB)
📄 lookup.h(243 B)
📄 patchlevel.h(86 B)
📄 readfile.c(46.45 KB)
📄 readfile.h(288 B)
📄 report.c(2.47 KB)
📄 report.h(168 B)
📄 rtmsg.c(6.17 KB)
📄 syslog.conf(2.08 KB)
📁 tools
📄 trygetea.c(940 B)
📄 trygetif.c(1.34 KB)
📄 trylook.c(817 B)
📄 tzone.c(951 B)
📄 tzone.h(66 B)

Editing: lookup.c

/*
 * lookup.c - Lookup IP address, HW address, netmask
 *
 * $FreeBSD$
 */

#include <sys/types.h>
#include <sys/socket.h>

#include <sys/time.h>	/* for struct timeval in net/if.h */
#include <net/if.h>
#include <netinet/in.h>

#ifdef	ETC_ETHERS
#include <net/ethernet.h>
extern int ether_hostton();
#endif

#include <netdb.h>
#include <syslog.h>

#ifndef USE_BFUNCS
#include <memory.h>
/* Yes, memcpy is OK here (no overlapped copies). */
#define bcopy(a,b,c)    memcpy(b,a,c)
#endif

#include "bootp.h"
#include "lookup.h"
#include "report.h"

/*
 * Lookup an Ethernet address and return it.
 * Return NULL if addr not found.
 */
u_char *
lookup_hwa(hostname, htype)
	char *hostname;
	int htype;
{
	switch (htype) {

/* XXX - How is this done on other systems? -gwr */
#ifdef	ETC_ETHERS
	case HTYPE_ETHERNET:
	case HTYPE_IEEE802:
		{
			static struct ether_addr ea;
			/* This does a lookup in /etc/ethers */
			if (ether_hostton(hostname, &ea)) {
				report(LOG_ERR, "no HW addr for host \"%s\"",
					   hostname);
				return (u_char *) 0;
			}
			return (u_char *) & ea;
		}
#endif /* ETC_ETHERS */

default:
		report(LOG_ERR, "no lookup for HW addr type %d", htype);
	}							/* switch */

/* If the system can't do it, just return an error. */
	return (u_char *) 0;
}

/*
 * Lookup an IP address.
 * Return non-zero on failure.
 */
int
lookup_ipa(hostname, result)
	char *hostname;
	u_int32 *result;
{
	struct hostent *hp;
	hp = gethostbyname(hostname);
	if (!hp)
		return -1;
	bcopy(hp->h_addr, result, sizeof(*result));
	return 0;
}

/*
 * Lookup a netmask
 * Return non-zero on failure.
 *
 * XXX - This is OK as a default, but to really make this automatic,
 * we would need to get the subnet mask from the ether interface.
 * If this is wrong, specify the correct value in the bootptab.
 */
int
lookup_netmask(addr, result)
	u_int32 addr;				/* both in network order */
	u_int32 *result;
{
	int32 m, a;

a = ntohl(addr);
	m = 0;

if (IN_CLASSA(a))
		m = IN_CLASSA_NET;

if (IN_CLASSB(a))
		m = IN_CLASSB_NET;

if (IN_CLASSC(a))
		m = IN_CLASSC_NET;

if (!m)
		return -1;
	*result = htonl(m);
	return 0;
}

/*
 * Local Variables:
 * tab-width: 4
 * c-indent-level: 4
 * c-argdecl-indent: 4
 * c-continued-statement-offset: 4
 * c-continued-brace-offset: -4
 * c-label-offset: -4
 * c-brace-offset: 0
 * End:
 */

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Editing: lookup.c

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