diff options
Diffstat (limited to 'StdLib/BsdSocketLib/getnetbynis.c')
| -rw-r--r-- | StdLib/BsdSocketLib/getnetbynis.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/StdLib/BsdSocketLib/getnetbynis.c b/StdLib/BsdSocketLib/getnetbynis.c new file mode 100644 index 0000000000..f81ca03c76 --- /dev/null +++ b/StdLib/BsdSocketLib/getnetbynis.c @@ -0,0 +1,171 @@ +/*-
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)$Id: getnetbynis.c,v 1.1.1.1 2003/11/19 01:51:28 kyu3 Exp $";
+static char rcsid[] = "$Id: getnetbynis.c,v 1.1.1.1 2003/11/19 01:51:28 kyu3 Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <arpa/nameser.h>
+#ifdef YP
+#include <rpc/rpc.h>
+#include <rpcsvc/yp_prot.h>
+#include <rpcsvc/ypclnt.h>
+#endif
+
+#define MAXALIASES 35
+#define MAXADDRS 35
+
+#ifdef YP
+static char *host_aliases[MAXALIASES];
+#endif /* YP */
+
+static struct netent *
+_getnetbynis(const char *name, char *map, int af)
+{
+#ifdef YP
+ register char *cp, **q;
+ static char *result;
+ int resultlen;
+ static struct netent h;
+ static char *domain = (char *)NULL;
+ static char ypbuf[YPMAXRECORD + 2];
+
+ switch(af) {
+ case AF_INET:
+ break;
+ default:
+ case AF_INET6:
+ errno = EAFNOSUPPORT;
+ return NULL;
+ }
+
+ if (domain == (char *)NULL)
+ if (yp_get_default_domain (&domain))
+ return (NULL);
+
+ if (yp_match(domain, map, name, strlen(name), &result, &resultlen))
+ return (NULL);
+
+ bcopy((char *)result, (char *)&ypbuf, resultlen);
+ ypbuf[resultlen] = '\0';
+ free(result);
+ result = (char *)&ypbuf;
+
+ if ((cp = index(result, '\n')))
+ *cp = '\0';
+
+ cp = strpbrk(result, " \t");
+ *cp++ = '\0';
+ h.n_name = result;
+
+ while (*cp == ' ' || *cp == '\t')
+ cp++;
+
+ h.n_net = inet_network(cp);
+ h.n_addrtype = AF_INET;
+
+ q = h.n_aliases = host_aliases;
+ cp = strpbrk(cp, " \t");
+ if (cp != NULL)
+ *cp++ = '\0';
+ while (cp && *cp) {
+ if (*cp == ' ' || *cp == '\t') {
+ cp++;
+ continue;
+ }
+ if (q < &host_aliases[MAXALIASES - 1])
+ *q++ = cp;
+ cp = strpbrk(cp, " \t");
+ if (cp != NULL)
+ *cp++ = '\0';
+ }
+ *q = NULL;
+ return (&h);
+#else
+ return (NULL);
+#endif
+}
+
+struct netent *
+_getnetbynisname(const char *name)
+{
+ return _getnetbynis(name, "networks.byname", AF_INET);
+}
+
+struct netent *
+_getnetbynisaddr(unsigned long addr, int af)
+{
+ char *str, *cp;
+ unsigned long net2;
+ int nn;
+ unsigned int netbr[4];
+ char buf[MAXDNAME];
+
+ if (af != AF_INET) {
+ errno = EAFNOSUPPORT;
+ return (NULL);
+ }
+
+ for (nn = 4, net2 = addr; net2; net2 >>= 8) {
+ netbr[--nn] = net2 & 0xff;
+ }
+
+ switch (nn) {
+ case 3: /* Class A */
+ sprintf(buf, "%u", netbr[3]);
+ break;
+ case 2: /* Class B */
+ sprintf(buf, "%u.%u", netbr[2], netbr[3]);
+ break;
+ case 1: /* Class C */
+ sprintf(buf, "%u.%u.%u", netbr[1], netbr[2], netbr[3]);
+ break;
+ case 0: /* Class D - E */
+ sprintf(buf, "%u.%u.%u.%u", netbr[0], netbr[1],
+ netbr[2], netbr[3]);
+ break;
+ }
+
+ str = (char *)&buf;
+ cp = str + (strlen(str) - 2);
+
+ while(!strcmp(cp, ".0")) {
+ *cp = '\0';
+ cp = str + (strlen(str) - 2);
+ }
+
+ return _getnetbynis(str, "networks.byaddr", af);
+}
|