*
* Heavily modified by Manuel Novoa III Mar 12, 2001
*
- * Version: $Id: inet_common.c,v 1.4 2002/11/26 02:35:15 bug1 Exp $
+ * Version: $Id: inet_common.c,v 1.5 2002/11/28 09:52:23 bug1 Exp $
*
*/
#endif
-const char bb_INET_default[]="default";
+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 */
+ 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) fprintf (stderr, "gethostbyname (%s)\n", name);
+ if (hostfirst) {
+ 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. */
+ 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
- fprintf (stderr, "getnetbyname (%s)\n", name);
+ 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;
- }
+ 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;
+ res_init();
+ _res.options |= RES_DEBUG;
#endif
#ifdef DEBUG
- fprintf (stderr, "gethostbyname (%s)\n", name);
+ 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;
+ 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;
+ struct sockaddr_in addr;
+ char *name;
+ int host;
+ struct addr *next;
};
-static struct addr *INET_nn = NULL; /* addr-to-name cache */
+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)
+ 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) {
+ 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);
+ 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;
+ 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);
+ 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 == 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 ((ad & (~netmask)) != 0 || (numeric & 0x4000))
+ host = 1;
#if 0
- INET_nn = NULL;
+ 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);
+ 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);
+ error_msg("rresolve: found %s %08lx in cache",
+ (host ? "host" : "net"), ad);
#endif
- return (0);
+ return (0);
+ }
+ pn = pn->next;
}
- pn = pn->next;
- }
- host_ad = ntohl(ad);
- np = NULL;
- ent = NULL;
- if (host) {
+ host_ad = ntohl(ad);
+ np = NULL;
+ ent = NULL;
+ if (host) {
#ifdef DEBUG
- fprintf (stderr, "gethostbyaddr (%08lx)\n", ad);
+ error_msg("gethostbyaddr (%08lx)", ad);
#endif
- ent = gethostbyaddr((char *) &ad, 4, AF_INET);
- if (ent != NULL)
- safe_strncpy(name, ent->h_name, len);
- } else {
+ 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);
+ 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 = xstrdup(name);
- INET_nn = pn;
-
- return (0);
+ 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 = 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))) {
- fprintf(stderr, "getaddrinfo: %s: %d\n", name, s);
- return -1;
- }
- memcpy(sin6, ai->ai_addr, sizeof(struct sockaddr_in6));
+ struct addrinfo req, *ai;
+ int s;
+
+ memset(&req, '\0', sizeof req);
+ req.ai_family = AF_INET6;
+ if ((s = getaddrinfo(name, NULL, &req, &ai))) {
+ error_msg("getaddrinfo: %s: %d", name, s);
+ return -1;
+ }
+ memcpy(sin6, ai->ai_addr, sizeof(struct sockaddr_in6));
- freeaddrinfo(ai);
+ freeaddrinfo(ai);
- return (0);
+ return (0);
}
#ifndef IN6_IS_ADDR_UNSPECIFIED
#endif
-int INET6_rresolve(char *name, size_t len, struct sockaddr_in6 *sin6, int numeric)
+int INET6_rresolve(char *name, size_t len, struct sockaddr_in6 *sin6,
+ int numeric)
{
- int s;
+ int s;
- /* Grmpf. -FvK */
- if (sin6->sin6_family != AF_INET6) {
+ /* Grmpf. -FvK */
+ if (sin6->sin6_family != AF_INET6) {
#ifdef DEBUG
- fprintf(stderr, _("rresolve: unsupport address family %d !\n"),
- sin6->sin6_family);
+ 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, "*");
+ 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) {
+ error_msg("getnameinfo failed");
+ return -1;
+ }
return (0);
- }
-
- if ((s = getnameinfo((struct sockaddr *) sin6, sizeof(struct sockaddr_in6),
- name, len , NULL, 0, 0))) {
- fputs("getnameinfo failed\n", stderr);
- return -1;
- }
- return (0);
}
-#endif /* CONFIG_FEATURE_IPV6 */
+#endif /* CONFIG_FEATURE_IPV6 */
projects / oweals / busybox.git / commitdiff