* that either displays or sets the characteristics of
* one or more of the system's networking interfaces.
*
- * Version: $Id: interface.c,v 1.6 2001/10/27 03:28:19 andersen Exp $
+ * Version: $Id: interface.c,v 1.7 2001/11/10 11:22:46 andersen Exp $
*
* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
* and others. Copyright 1993 MicroWalt Corporation
#undef HAVE_HWSLIP
-#include <features.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <netinet/in.h>
-#include <net/if.h>
-#include <net/if_arp.h>
+#include "inet_common.h"
#include <stdio.h>
#include <errno.h>
-#include <fcntl.h>
-#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#if 0
-#include <arpa/nameser.h>
-#endif
+#include <fcntl.h>
+#include <ctype.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <net/if_arp.h>
#include "libbb.h"
#define _(x) x
static int procnetdev_vsn = 1;
-
/* Ugh. But libc5 doesn't provide POSIX types. */
#include <asm/types.h>
#include "ipx.h"
#endif
#endif
-#if 0
-#include "net-support.h"
-#include "pathnames.h"
-#include "version.h"
-#include "../intl.h"
-#include "interface.h"
-#include "sockets.h"
-#include "util.h"
-#endif
/* Defines for glibc2.0 users. */
#ifndef SIOCSIFTXQLEN
#if HAVE_AFINET
-#if 0
-extern int h_errno; /* some netdb.h versions don't export this */
-#endif
-
-/* cache */
-struct addr {
- struct sockaddr_in addr;
- char *name;
- int host;
- struct addr *next;
-};
-
-static struct addr *INET_nn = NULL; /* addr-to-name cache */
-
-#ifdef KEEP_UNUSED
-static int INET_resolve(char *name, struct sockaddr_in *sin, int hostfirst)
-{
- struct hostent *hp;
- struct netent *np;
-
- /* Grmpf. -FvK */
- sin->sin_family = AF_INET;
- sin->sin_port = 0;
-
- /* Default is special, meaning 0.0.0.0. */
- if (!strcmp(name, "default")) {
- sin->sin_addr.s_addr = INADDR_ANY;
- return (1);
- }
- /* Look to see if it's a dotted quad. */
- if (inet_aton(name, &sin->sin_addr)) {
- return 0;
- }
- /* If we expect this to be a hostname, try hostname database first */
-#ifdef DEBUG
- if (hostfirst) fprintf (stderr, "gethostbyname (%s)\n", name);
-#endif
- if (hostfirst &&
- (hp = gethostbyname(name)) != (struct hostent *) NULL) {
- memcpy((char *) &sin->sin_addr, (char *) hp->h_addr_list[0],
- sizeof(struct in_addr));
- return 0;
- }
- /* Try the NETWORKS database to see if this is a known network. */
-#ifdef DEBUG
- fprintf (stderr, "getnetbyname (%s)\n", name);
-#endif
- if ((np = getnetbyname(name)) != (struct netent *) NULL) {
- sin->sin_addr.s_addr = htonl(np->n_net);
- return 1;
- }
- if (hostfirst) {
- /* Don't try again */
- errno = h_errno;
- return -1;
- }
-#ifdef DEBUG
- res_init();
- _res.options |= RES_DEBUG;
-#endif
-
-#ifdef DEBUG
- fprintf (stderr, "gethostbyname (%s)\n", name);
-#endif
- if ((hp = gethostbyname(name)) == (struct hostent *) NULL) {
- errno = h_errno;
- return -1;
- }
- memcpy((char *) &sin->sin_addr, (char *) hp->h_addr_list[0],
- sizeof(struct in_addr));
-
- return 0;
-}
-#endif /* KEEP_UNUSED */
-
-/* numeric: & 0x8000: default instead of *,
- * & 0x4000: host instead of net,
- * & 0x0fff: don't resolve
- */
-static int INET_rresolve(char *name, size_t len, struct sockaddr_in *s_in,
- int numeric, unsigned int netmask)
-{
- struct hostent *ent;
- struct netent *np;
- struct addr *pn;
- unsigned long ad, host_ad;
- int host = 0;
-
- /* Grmpf. -FvK */
- if (s_in->sin_family != AF_INET) {
-#ifdef DEBUG
- fprintf(stderr, _("rresolve: unsupport address family %d !\n"), s_in->sin_family);
-#endif
- errno = EAFNOSUPPORT;
- return (-1);
- }
- ad = (unsigned long) s_in->sin_addr.s_addr;
-#ifdef DEBUG
- fprintf (stderr, "rresolve: %08lx, mask %08x, num %08x \n", ad, netmask, numeric);
-#endif
- if (ad == INADDR_ANY) {
- if ((numeric & 0x0FFF) == 0) {
- if (numeric & 0x8000)
- safe_strncpy(name, "default", len);
- else
- safe_strncpy(name, "*", len);
- return (0);
- }
- }
- if (numeric & 0x0FFF) {
- safe_strncpy(name, inet_ntoa(s_in->sin_addr), len);
- return (0);
- }
-
- if ((ad & (~netmask)) != 0 || (numeric & 0x4000))
- host = 1;
-#if 0
- INET_nn = NULL;
-#endif
- pn = INET_nn;
- while (pn != NULL) {
- if (pn->addr.sin_addr.s_addr == ad && pn->host == host) {
- safe_strncpy(name, pn->name, len);
-#ifdef DEBUG
- fprintf (stderr, "rresolve: found %s %08lx in cache\n", (host? "host": "net"), ad);
-#endif
- return (0);
- }
- pn = pn->next;
- }
-
- host_ad = ntohl(ad);
- np = NULL;
- ent = NULL;
- if (host) {
-#ifdef DEBUG
- fprintf (stderr, "gethostbyaddr (%08lx)\n", ad);
-#endif
- ent = gethostbyaddr((char *) &ad, 4, AF_INET);
- if (ent != NULL)
- safe_strncpy(name, ent->h_name, len);
- } else {
-#ifdef DEBUG
- fprintf (stderr, "getnetbyaddr (%08lx)\n", host_ad);
-#endif
-#if 0
- np = getnetbyaddr(host_ad, AF_INET);
- if (np != NULL)
- safe_strncpy(name, np->n_name, len);
-#endif
- }
- if ((ent == NULL) && (np == NULL))
- safe_strncpy(name, inet_ntoa(s_in->sin_addr), len);
- pn = (struct addr *) xmalloc(sizeof(struct addr));
- pn->addr = *s_in;
- pn->next = INET_nn;
- pn->host = host;
- pn->name = (char *) xmalloc(strlen(name) + 1);
- strcpy(pn->name, name);
- INET_nn = pn;
-
- return (0);
-}
-
#ifdef KEEP_UNUSED
static void INET_reserror(char *text)
{
projects / platform / upstream / busybox.git / blobdiff