imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 249 insertions, 0 deletions

diff --git a/release/src/router/busybox/libbb/inet_common.c b/release/src/router/busybox/libbb/inet_common.c
new file mode 100644
index 00000000..4e574ea5
--- /dev/null
+++ b/release/src/router/busybox/libbb/inet_common.c
@@ -0,0 +1,249 @@
+/*
+ * stolen from net-tools-1.59 and stripped down for busybox by
+ *                      Erik Andersen <andersen@codepoet.org>
+ *
+ * Heavily modified by Manuel Novoa III       Mar 12, 2001
+ *
+ * Version:     $Id: inet_common.c,v 1.1.3.1 2004/12/29 07:07:45 honor Exp $
+ *
+ */
+
+#include "inet_common.h"
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "libbb.h"
+
+#ifdef DEBUG
+# include <resolv.h>
+#endif
+
+
+const char bb_INET_default[] = "default";
+
+int INET_resolve(const char *name, struct sockaddr_in *s_in, int hostfirst)
+{
+	struct hostent *hp;
+	struct netent *np;
+
+	/* Grmpf. -FvK */
+	s_in->sin_family = AF_INET;
+	s_in->sin_port = 0;
+
+	/* Default is special, meaning 0.0.0.0. */
+	if (!strcmp(name, bb_INET_default)) {
+		s_in->sin_addr.s_addr = INADDR_ANY;
+		return (1);
+	}
+	/* Look to see if it's a dotted quad. */
+	if (inet_aton(name, &s_in->sin_addr)) {
+		return 0;
+	}
+	/* If we expect this to be a hostname, try hostname database first */
+#ifdef DEBUG
+	if (hostfirst) {
+		bb_error_msg("gethostbyname (%s)", name);
+	}
+#endif
+	if (hostfirst && (hp = gethostbyname(name)) != (struct hostent *) NULL) {
+		memcpy((char *) &s_in->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
+	bb_error_msg("getnetbyname (%s)", name);
+#endif
+	if ((np = getnetbyname(name)) != (struct netent *) NULL) {
+		s_in->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
+	bb_error_msg("gethostbyname (%s)", name);
+#endif
+	if ((hp = gethostbyname(name)) == (struct hostent *) NULL) {
+		errno = h_errno;
+		return -1;
+	}
+	memcpy((char *) &s_in->sin_addr, (char *) hp->h_addr_list[0],
+		   sizeof(struct in_addr));
+
+	return 0;
+}
+
+/* cache */
+struct addr {
+	struct sockaddr_in addr;
+	char *name;
+	int host;
+	struct addr *next;
+};
+
+static struct addr *INET_nn = NULL;	/* addr-to-name cache           */
+
+/* numeric: & 0x8000: default instead of *,
+ *          & 0x4000: host instead of net,
+ *          & 0x0fff: don't resolve
+ */
+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
+		bb_error_msg("rresolve: unsupport address family %d !",
+				  s_in->sin_family);
+#endif
+		errno = EAFNOSUPPORT;
+		return (-1);
+	}
+	ad = (unsigned long) s_in->sin_addr.s_addr;
+#ifdef DEBUG
+	bb_error_msg("rresolve: %08lx, mask %08x, num %08x", ad, netmask, numeric);
+#endif
+	if (ad == INADDR_ANY) {
+		if ((numeric & 0x0FFF) == 0) {
+			if (numeric & 0x8000)
+				safe_strncpy(name, bb_INET_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
+			bb_error_msg("rresolve: found %s %08lx in cache",
+					  (host ? "host" : "net"), ad);
+#endif
+			return (0);
+		}
+		pn = pn->next;
+	}
+
+	host_ad = ntohl(ad);
+	np = NULL;
+	ent = NULL;
+	if (host) {
+#ifdef DEBUG
+		bb_error_msg("gethostbyaddr (%08lx)", ad);
+#endif
+		ent = gethostbyaddr((char *) &ad, 4, AF_INET);
+		if (ent != NULL) {
+			safe_strncpy(name, ent->h_name, len);
+		}
+	} else {
+#ifdef DEBUG
+		bb_error_msg("getnetbyaddr (%08lx)", host_ad);
+#endif
+		np = getnetbyaddr(host_ad, AF_INET);
+		if (np != NULL) {
+			safe_strncpy(name, np->n_name, len);
+		}
+	}
+	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 = bb_xstrdup(name);
+	INET_nn = pn;
+
+	return (0);
+}
+
+#ifdef CONFIG_FEATURE_IPV6
+
+int INET6_resolve(char *name, struct sockaddr_in6 *sin6)
+{
+	struct addrinfo req, *ai;
+	int s;
+
+	memset(&req, '\0', sizeof req);
+	req.ai_family = AF_INET6;
+	if ((s = getaddrinfo(name, NULL, &req, &ai))) {
+		bb_error_msg("getaddrinfo: %s: %d", name, s);
+		return -1;
+	}
+	memcpy(sin6, ai->ai_addr, sizeof(struct sockaddr_in6));
+
+	freeaddrinfo(ai);
+
+	return (0);
+}
+
+#ifndef IN6_IS_ADDR_UNSPECIFIED
+# define IN6_IS_ADDR_UNSPECIFIED(a) \
+        (((__u32 *) (a))[0] == 0 && ((__u32 *) (a))[1] == 0 && \
+         ((__u32 *) (a))[2] == 0 && ((__u32 *) (a))[3] == 0)
+#endif
+
+
+int INET6_rresolve(char *name, size_t len, struct sockaddr_in6 *sin6,
+				   int numeric)
+{
+	int s;
+
+	/* Grmpf. -FvK */
+	if (sin6->sin6_family != AF_INET6) {
+#ifdef DEBUG
+		bb_error_msg(_("rresolve: unsupport address family %d !\n"),
+				  sin6->sin6_family);
+#endif
+		errno = EAFNOSUPPORT;
+		return (-1);
+	}
+	if (numeric & 0x7FFF) {
+		inet_ntop(AF_INET6, &sin6->sin6_addr, name, len);
+		return (0);
+	}
+	if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+		if (numeric & 0x8000) {
+			strcpy(name, "default");
+		} else {
+			strcpy(name, "*");
+		}
+		return (0);
+	}
+
+	s = getnameinfo((struct sockaddr *) sin6, sizeof(struct sockaddr_in6), name, len, NULL, 0, 0);
+	if (s) {
+		bb_error_msg("getnameinfo failed");
+		return -1;
+	}
+	return (0);
+}
+
+#endif							/* CONFIG_FEATURE_IPV6 */