[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/libbb/inet_common.c b/ap/app/busybox/src/libbb/inet_common.c
new file mode 100644
index 0000000..0f4fca1
--- /dev/null
+++ b/ap/app/busybox/src/libbb/inet_common.c
@@ -0,0 +1,224 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * 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
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+
+#include "libbb.h"
+#include "inet_common.h"
+
+int FAST_FUNC INET_resolve(const char *name, struct sockaddr_in *s_in, int hostfirst)
+{
+ struct hostent *hp;
+#if ENABLE_FEATURE_ETC_NETWORKS
+ struct netent *np;
+#endif
+
+ /* Grmpf. -FvK */
+ s_in->sin_family = AF_INET;
+ s_in->sin_port = 0;
+
+ /* Default is special, meaning 0.0.0.0. */
+ if (strcmp(name, "default") == 0) {
+ 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);
+ if (hp != NULL) {
+ memcpy(&s_in->sin_addr, hp->h_addr_list[0],
+ sizeof(struct in_addr));
+ return 0;
+ }
+ }
+#if ENABLE_FEATURE_ETC_NETWORKS
+ /* Try the NETWORKS database to see if this is a known network. */
+#ifdef DEBUG
+ bb_error_msg("getnetbyname(%s)", name);
+#endif
+ np = getnetbyname(name);
+ if (np != NULL) {
+ s_in->sin_addr.s_addr = htonl(np->n_net);
+ return 1;
+ }
+#endif
+ if (hostfirst) {
+ /* Don't try again */
+ return -1;
+ }
+#ifdef DEBUG
+ res_init();
+ _res.options |= RES_DEBUG;
+ bb_error_msg("gethostbyname(%s)", name);
+#endif
+ hp = gethostbyname(name);
+ if (hp == NULL) {
+ return -1;
+ }
+ memcpy(&s_in->sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
+ return 0;
+}
+
+
+/* numeric: & 0x8000: default instead of *,
+ * & 0x4000: host instead of net,
+ * & 0x0fff: don't resolve
+ */
+char* FAST_FUNC INET_rresolve(struct sockaddr_in *s_in, int numeric, uint32_t netmask)
+{
+ /* addr-to-name cache */
+ struct addr {
+ struct addr *next;
+ struct sockaddr_in addr;
+ int host;
+ char name[1];
+ };
+ static struct addr *cache = NULL;
+
+ struct addr *pn;
+ char *name;
+ uint32_t ad, host_ad;
+ int host = 0;
+
+ if (s_in->sin_family != AF_INET) {
+#ifdef DEBUG
+ bb_error_msg("rresolve: unsupported address family %d!",
+ s_in->sin_family);
+#endif
+ errno = EAFNOSUPPORT;
+ return NULL;
+ }
+ ad = s_in->sin_addr.s_addr;
+#ifdef DEBUG
+ bb_error_msg("rresolve: %08x, mask %08x, num %08x", (unsigned)ad, netmask, numeric);
+#endif
+ if (ad == INADDR_ANY) {
+ if ((numeric & 0x0FFF) == 0) {
+ if (numeric & 0x8000)
+ return xstrdup("default");
+ return xstrdup("*");
+ }
+ }
+ if (numeric & 0x0FFF)
+ return xstrdup(inet_ntoa(s_in->sin_addr));
+
+ if ((ad & (~netmask)) != 0 || (numeric & 0x4000))
+ host = 1;
+ pn = cache;
+ while (pn) {
+ if (pn->addr.sin_addr.s_addr == ad && pn->host == host) {
+#ifdef DEBUG
+ bb_error_msg("rresolve: found %s %08x in cache",
+ (host ? "host" : "net"), (unsigned)ad);
+#endif
+ return xstrdup(pn->name);
+ }
+ pn = pn->next;
+ }
+
+ host_ad = ntohl(ad);
+ name = NULL;
+ if (host) {
+ struct hostent *ent;
+#ifdef DEBUG
+ bb_error_msg("gethostbyaddr (%08x)", (unsigned)ad);
+#endif
+ ent = gethostbyaddr((char *) &ad, 4, AF_INET);
+ if (ent)
+ name = xstrdup(ent->h_name);
+ } else if (ENABLE_FEATURE_ETC_NETWORKS) {
+ struct netent *np;
+#ifdef DEBUG
+ bb_error_msg("getnetbyaddr (%08x)", (unsigned)host_ad);
+#endif
+ np = getnetbyaddr(host_ad, AF_INET);
+ if (np)
+ name = xstrdup(np->n_name);
+ }
+ if (!name)
+ name = xstrdup(inet_ntoa(s_in->sin_addr));
+ pn = xmalloc(sizeof(*pn) + strlen(name)); /* no '+ 1', it's already accounted for */
+ pn->next = cache;
+ pn->addr = *s_in;
+ pn->host = host;
+ strcpy(pn->name, name);
+ cache = pn;
+ return name;
+}
+
+#if ENABLE_FEATURE_IPV6
+
+int FAST_FUNC INET6_resolve(const char *name, struct sockaddr_in6 *sin6)
+{
+ struct addrinfo req, *ai = NULL;
+ int s;
+
+ memset(&req, 0, sizeof(req));
+ req.ai_family = AF_INET6;
+ s = getaddrinfo(name, NULL, &req, &ai);
+ if (s != 0) {
+ bb_error_msg("getaddrinfo: %s: %d", name, s);
+ return -1;
+ }
+ memcpy(sin6, ai->ai_addr, sizeof(*sin6));
+ if (ai)
+ freeaddrinfo(ai);
+ return 0;
+}
+
+#ifndef IN6_IS_ADDR_UNSPECIFIED
+# define IN6_IS_ADDR_UNSPECIFIED(a) \
+ (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
+ ((uint32_t *) (a))[2] == 0 && ((uint32_t *) (a))[3] == 0)
+#endif
+
+
+char* FAST_FUNC INET6_rresolve(struct sockaddr_in6 *sin6, int numeric)
+{
+ char name[128];
+ int s;
+
+ if (sin6->sin6_family != AF_INET6) {
+#ifdef DEBUG
+ bb_error_msg("rresolve: unsupported address family %d!",
+ sin6->sin6_family);
+#endif
+ errno = EAFNOSUPPORT;
+ return NULL;
+ }
+ if (numeric & 0x7FFF) {
+ inet_ntop(AF_INET6, &sin6->sin6_addr, name, sizeof(name));
+ return xstrdup(name);
+ }
+ if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+ if (numeric & 0x8000)
+ return xstrdup("default");
+ return xstrdup("*");
+ }
+
+ s = getnameinfo((struct sockaddr *) sin6, sizeof(*sin6),
+ name, sizeof(name),
+ /*serv,servlen:*/ NULL, 0,
+ 0);
+ if (s != 0) {
+ bb_error_msg("getnameinfo failed");
+ return NULL;
+ }
+ return xstrdup(name);
+}
+
+#endif /* CONFIG_FEATURE_IPV6 */