--- /dev/null
+/*\r
+ * Copyright (c) 1983, 1993\r
+ * The Regents of the University of California. All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ * 1. Redistributions of source code must retain the above copyright\r
+ * notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above copyright\r
+ * notice, this list of conditions and the following disclaimer in the\r
+ * documentation and/or other materials provided with the distribution.\r
+ * 3. All advertising materials mentioning features or use of this software\r
+ * must display the following acknowledgement:\r
+ * This product includes software developed by the University of\r
+ * California, Berkeley and its contributors.\r
+ * 4. Neither the name of the University nor the names of its contributors\r
+ * may be used to endorse or promote products derived from this software\r
+ * without specific prior written permission.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
+ * SUCH DAMAGE.\r
+ */\r
+\r
+/* Portions Copyright (c) 1993 Carlos Leandro and Rui Salgueiro\r
+ * Dep. Matematica Universidade de Coimbra, Portugal, Europe\r
+ *\r
+ * Permission to use, copy, modify, and distribute this software for any\r
+ * purpose with or without fee is hereby granted, provided that the above\r
+ * copyright notice and this permission notice appear in all copies.\r
+ *\r
+ * from getnetent.c 1.1 (Coimbra) 93/06/02\r
+ */\r
+\r
+#if defined(LIBC_SCCS) && !defined(lint)\r
+static char sccsid[] = "@(#)getnetent.c 8.1 (Berkeley) 6/4/93";\r
+static char orig_rcsid[] = "From: Id: getnetent.c,v 8.4 1997/06/01 20:34:37 vixie Exp";\r
+static chat rcsid[] = "$Id: getnetbyht.c,v 1.1.1.1 2003/11/19 01:51:27 kyu3 Exp $";\r
+#endif /* LIBC_SCCS and not lint */\r
+\r
+#include <sys/types.h>\r
+#include <sys/socket.h>\r
+#include <netinet/in.h>\r
+#include <arpa/inet.h>\r
+#include <arpa/nameser.h>\r
+#include <netdb.h>\r
+#include <stdio.h>\r
+#include <string.h>\r
+\r
+#define MAXALIASES 35\r
+\r
+static FILE *netf;\r
+static char line[BUFSIZ+1];\r
+static struct netent net;\r
+static char *net_aliases[MAXALIASES];\r
+static int _net_stayopen;\r
+\r
+void\r
+_setnethtent(int f)\r
+{\r
+\r
+ if (netf == NULL)\r
+ netf = fopen(_PATH_NETWORKS, "r" );\r
+ else\r
+ rewind(netf);\r
+ _net_stayopen |= f;\r
+}\r
+\r
+void\r
+_endnethtent()\r
+{\r
+\r
+ if (netf) {\r
+ fclose(netf);\r
+ netf = NULL;\r
+ }\r
+ _net_stayopen = 0;\r
+}\r
+\r
+struct netent *\r
+getnetent()\r
+{\r
+ char *p;\r
+ register char *cp, **q;\r
+\r
+ if (netf == NULL && (netf = fopen(_PATH_NETWORKS, "r" )) == NULL)\r
+ return (NULL);\r
+again:\r
+ p = fgets(line, sizeof line, netf);\r
+ if (p == NULL)\r
+ return (NULL);\r
+ if (*p == '#')\r
+ goto again;\r
+ cp = strpbrk(p, "#\n");\r
+ if (cp == NULL)\r
+ goto again;\r
+ *cp = '\0';\r
+ net.n_name = p;\r
+ cp = strpbrk(p, " \t");\r
+ if (cp == NULL)\r
+ goto again;\r
+ *cp++ = '\0';\r
+ while (*cp == ' ' || *cp == '\t')\r
+ cp++;\r
+ p = strpbrk(cp, " \t");\r
+ if (p != NULL)\r
+ *p++ = '\0';\r
+ net.n_net = inet_network(cp);\r
+ net.n_addrtype = AF_INET;\r
+ q = net.n_aliases = net_aliases;\r
+ if (p != NULL) \r
+ cp = p;\r
+ while (cp && *cp) {\r
+ if (*cp == ' ' || *cp == '\t') {\r
+ cp++;\r
+ continue;\r
+ }\r
+ if (q < &net_aliases[MAXALIASES - 1])\r
+ *q++ = cp;\r
+ cp = strpbrk(cp, " \t");\r
+ if (cp != NULL)\r
+ *cp++ = '\0';\r
+ }\r
+ *q = NULL;\r
+ return (&net);\r
+}\r
+\r
+struct netent *\r
+_getnetbyhtname(register const char *name)\r
+{\r
+ register struct netent *p;\r
+ register char **cp;\r
+\r
+ setnetent(_net_stayopen);\r
+ while ( NULL != (p = getnetent()) ) {\r
+ if (strcasecmp(p->n_name, name) == 0)\r
+ break;\r
+ for (cp = p->n_aliases; *cp != 0; cp++)\r
+ if (strcasecmp(*cp, name) == 0)\r
+ goto found;\r
+ }\r
+found:\r
+ if (!_net_stayopen)\r
+ endnetent();\r
+ return (p);\r
+}\r
+\r
+struct netent *\r
+_getnetbyhtaddr(register unsigned long net, register int type)\r
+{\r
+ register struct netent *p;\r
+\r
+ setnetent(_net_stayopen);\r
+ while ( NULL != (p = getnetent()) )\r
+ if (p->n_addrtype == type && p->n_net == net)\r
+ break;\r
+ if (!_net_stayopen)\r
+ endnetent();\r
+ return (p);\r
+}\r
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