File Manager

003 File Manager

Current Path: /usr/src/lib/libc/net

📁 ..
📄 Makefile.inc(5.08 KB)
📄 Symbol.map(2.8 KB)
📄 base64.c(10.39 KB)
📄 byteorder.3(2.74 KB)
📄 ether_addr.c(5.68 KB)
📄 ethers.3(5.85 KB)
📄 eui64.3(6.37 KB)
📄 eui64.c(8.3 KB)
📄 gai_strerror.3(2.49 KB)
📄 gai_strerror.c(3.98 KB)
📄 getaddrinfo.3(12.12 KB)
📄 getaddrinfo.c(70.2 KB)
📄 gethostbydns.c(19.1 KB)
📄 gethostbyht.c(9.04 KB)
📄 gethostbyname.3(8.74 KB)
📄 gethostbynis.c(6.94 KB)
📄 gethostnamadr.c(17.01 KB)
📄 getifaddrs.3(4.24 KB)
📄 getifaddrs.c(8.57 KB)
📄 getifmaddrs.3(3 KB)
📄 getifmaddrs.c(4.79 KB)
📄 getipnodebyname.3(10.04 KB)
📄 getnameinfo.3(7.6 KB)
📄 getnameinfo.c(13.68 KB)
📄 getnetbydns.c(12 KB)
📄 getnetbyht.c(7.18 KB)
📄 getnetbynis.c(6.09 KB)
📄 getnetent.3(4.36 KB)
📄 getnetnamadr.c(10.46 KB)
📄 getproto.c(3.87 KB)
📄 getprotoent.3(3.78 KB)
📄 getprotoent.c(12.22 KB)
📄 getprotoname.c(4.25 KB)
📄 getservent.3(4.13 KB)
📄 getservent.c(29.69 KB)
📄 hesiod.3(4.19 KB)
📄 hesiod.c(12.17 KB)
📄 hosts(1.01 KB)
📄 hosts.equiv(53 B)
📄 if_indextoname.3(3.94 KB)
📄 if_indextoname.c(2.94 KB)
📄 if_nameindex.c(4.21 KB)
📄 if_nametoindex.c(2.84 KB)
📄 inet.3(7.76 KB)
📄 inet6_opt_init.3(9.07 KB)
📄 inet6_option_space.3(2.18 KB)
📄 inet6_rth_space.3(6.86 KB)
📄 inet6_rthdr_space.3(2.22 KB)
📄 inet_net.3(5.01 KB)
📄 ip6opt.c(15.36 KB)
📄 linkaddr.3(3.94 KB)
📄 linkaddr.c(4.44 KB)
📄 map_v4v6.c(3.93 KB)
📄 name6.c(28.18 KB)
📄 netdb_private.h(5.2 KB)
📄 networks(310 B)
📄 nscache.c(10.91 KB)
📄 nscachedcli.c(14.18 KB)
📄 nsdispatch.3(6.25 KB)
📄 nsdispatch.c(20.3 KB)
📄 nslexer.l(3.01 KB)
📄 nsparser.y(3.91 KB)
📄 nss_backends.h(2.04 KB)
📄 nss_compat.c(7.93 KB)
📄 nsswitch.conf(272 B)
📄 ntoh.c(1.75 KB)
📄 protocols(6.24 KB)
📄 rcmd.3(8.14 KB)
📄 rcmd.c(18.57 KB)
📄 rcmdsh.3(3.23 KB)
📄 rcmdsh.c(4.95 KB)
📄 recv.c(2.22 KB)
📄 res_config.h(299 B)
📄 resolver.3(11.43 KB)
📄 rthdr.c(9.7 KB)
📄 sctp_bindx.3(3.47 KB)
📄 sctp_connectx.3(3.44 KB)
📄 sctp_freepaddrs.3(2.26 KB)
📄 sctp_getaddrlen.3(2.82 KB)
📄 sctp_getassocid.3(2.44 KB)
📄 sctp_getpaddrs.3(3.11 KB)
📄 sctp_opt_info.3(3.55 KB)
📄 sctp_recvmsg.3(8.43 KB)
📄 sctp_send.3(11.12 KB)
📄 sctp_sendmsg.3(10.45 KB)
📄 sctp_sys_calls.c(30.35 KB)
📄 send.c(2.23 KB)
📄 sockatmark.3(3.26 KB)
📄 sockatmark.c(1.59 KB)
📄 sourcefilter.3(6.38 KB)
📄 sourcefilter.c(9.71 KB)
📄 vars.c(2.07 KB)

Editing: gethostbynis.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 1994, Garrett Wollman
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include <nsswitch.h>
#include <resolv.h>		/* XXX */
#ifdef YP
#include <rpc/rpc.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>
#endif
#include "netdb_private.h"

#ifdef YP
static int
_gethostbynis(const char *name, char *map, int af, struct hostent *he,
    struct hostent_data *hed)
{
	char *p, *bp, *ep;
	char *cp, **q;
	char *result;
	int resultlen, size, addrok = 0;
	char *ypbuf;
	res_state statp;

statp = __res_state();
	switch(af) {
	case AF_INET:
		size = NS_INADDRSZ;
		break;
	case AF_INET6:
		size = NS_IN6ADDRSZ;
		break;
	default:
		errno = EAFNOSUPPORT;
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		return (-1);
	}

if (hed->yp_domain == (char *)NULL)
		if (yp_get_default_domain (&hed->yp_domain)) {
			RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
			return (-1);
		}

if (yp_match(hed->yp_domain, map, name, strlen(name), &result,
	    &resultlen)) {
		RES_SET_H_ERRNO(statp, HOST_NOT_FOUND);
		return (-1);
	}

/* avoid potential memory leak */
	ypbuf = alloca(resultlen + 2);
	bcopy(result, ypbuf, resultlen);
	ypbuf[resultlen] = '\0';
	free(result);
	result = ypbuf;

if ((cp = strchr(result, '\n')))
		*cp = '\0';

cp = strpbrk(result, " \t");
	*cp++ = '\0';
	he->h_addr_list = hed->h_addr_ptrs;
	he->h_addr = (char *)hed->host_addr;
	switch (af) {
	case AF_INET:
		addrok = inet_aton(result, (struct in_addr *)hed->host_addr);
		if (addrok != 1)
			break;
		if (statp->options & RES_USE_INET6) {
			_map_v4v6_address((char *)hed->host_addr,
			    (char *)hed->host_addr);
			af = AF_INET6;
			size = NS_IN6ADDRSZ;
		}
		break;
	case AF_INET6:
		addrok = inet_pton(af, result, hed->host_addr);
		break;
	}
	if (addrok != 1) {
		RES_SET_H_ERRNO(statp, HOST_NOT_FOUND);
		return (-1);
	}
	he->h_addr_list[1] = NULL;
	he->h_length = size;
	he->h_addrtype = af;
	while (*cp == ' ' || *cp == '\t')
		cp++;
	bp = hed->hostbuf;
	ep = hed->hostbuf + sizeof hed->hostbuf;
	he->h_name = bp;
	q = he->h_aliases = hed->host_aliases;
	p = strpbrk(cp, " \t");
	if (p != NULL)
		*p++ = '\0';
	size = strlen(cp) + 1;
	if (ep - bp < size) {
		RES_SET_H_ERRNO(statp, NO_RECOVERY);
		return (-1);
	}
	strlcpy(bp, cp, ep - bp);
	bp += size;
	cp = p;
	while (cp && *cp) {
		if (*cp == ' ' || *cp == '\t') {
			cp++;
			continue;
		}
		if (q >= &hed->host_aliases[_MAXALIASES - 1])
			break;
		p = strpbrk(cp, " \t");
		if (p != NULL)
			*p++ = '\0';
		size = strlen(cp) + 1;
		if (ep - bp < size)
			break;
		strlcpy(bp, cp, ep - bp);
		*q++ = bp;
		bp += size;
		cp = p;
	}
	*q = NULL;
	return (0);
}

static int
_gethostbynisname_r(const char *name, int af, struct hostent *he,
    struct hostent_data *hed)
{
	char *map;

switch (af) {
	case AF_INET:
		map = "hosts.byname";
		break;
	default:
		map = "ipnodes.byname";
		break;
	}
	return (_gethostbynis(name, map, af, he, hed));
}

static int
_gethostbynisaddr_r(const void *addr, socklen_t len, int af,
    struct hostent *he, struct hostent_data *hed)
{
	char *map;
	char numaddr[46];

switch (af) {
	case AF_INET:
		map = "hosts.byaddr";
		break;
	default:
		map = "ipnodes.byaddr";
		break;
	}
	if (inet_ntop(af, addr, numaddr, sizeof(numaddr)) == NULL)
		return (-1);
	return (_gethostbynis(numaddr, map, af, he, hed));
}
#endif /* YP */

int
_nis_gethostbyname(void *rval, void *cb_data, va_list ap)
{
#ifdef YP
	const char *name;
	int af;
	char *buffer;
	size_t buflen;
	int *errnop, *h_errnop;
	struct hostent *hptr, he;
	struct hostent_data *hed;
	res_state statp;

name = va_arg(ap, const char *);
	af = va_arg(ap, int);
	hptr = va_arg(ap, struct hostent *);
	buffer = va_arg(ap, char *);
	buflen = va_arg(ap, size_t);
	errnop = va_arg(ap, int *);
	h_errnop = va_arg(ap, int *);

*((struct hostent **)rval) = NULL;

statp = __res_state();
	if ((hed = __hostent_data_init()) == NULL) {
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_NOTFOUND);
	}

if (_gethostbynisname_r(name, af, &he, hed) != 0) {
		*h_errnop = statp->res_h_errno;
		return (NS_NOTFOUND);
	}
	if (__copy_hostent(&he, hptr, buffer, buflen) != 0) {
		*errnop = errno;
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_RETURN);
	}
	*((struct hostent **)rval) = hptr;
	return (NS_SUCCESS);
#else
	*((struct hostent **)rval) = NULL;
	return (NS_UNAVAIL);
#endif
}

int
_nis_gethostbyaddr(void *rval, void *cb_data, va_list ap)
{
#ifdef YP
	const void *addr;
	socklen_t len;
	int af;
	char *buffer;
	size_t buflen;
	int *errnop, *h_errnop;
	struct hostent *hptr, he;
	struct hostent_data *hed;
	res_state statp;

addr = va_arg(ap, const void *);
	len = va_arg(ap, socklen_t);
	af = va_arg(ap, int);
	hptr = va_arg(ap, struct hostent *);
	buffer = va_arg(ap, char *);
	buflen = va_arg(ap, size_t);
	errnop = va_arg(ap, int *);
	h_errnop = va_arg(ap, int *);

*((struct hostent **)rval) = NULL;

statp = __res_state();
	if ((hed = __hostent_data_init()) == NULL) {
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_NOTFOUND);
	}

if (_gethostbynisaddr_r(addr, len, af, &he, hed) != 0) {
		*h_errnop = statp->res_h_errno;
		return (NS_NOTFOUND);
	}
	if (__copy_hostent(&he, hptr, buffer, buflen) != 0) {
		*errnop = errno;
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_RETURN);
	}
	*((struct hostent **)rval) = hptr;
	return (NS_SUCCESS);
#else
	*((struct hostent **)rval) = NULL;
	return (NS_UNAVAIL);
#endif
}

003 File Manager

Editing: gethostbynis.c

Upload File

Create Folder