+++ /dev/null
-/*-\r
- * Copyright (c) 1985, 1988, 1993\r
- * The Regents of the University of California. All rights reserved.\r
- *\r
- * Portions copyright (c) 1999, 2000\r
- * Intel Corporation.\r
- * 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
- * \r
- * 1. Redistributions of source code must retain the above copyright\r
- * notice, this list of conditions and the following disclaimer.\r
- * \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
- * \r
- * 3. All advertising materials mentioning features or use of this software\r
- * must display the following acknowledgement:\r
- * \r
- * This product includes software developed by the University of\r
- * California, Berkeley, Intel Corporation, and its contributors.\r
- * \r
- * 4. Neither the name of University, Intel Corporation, or their respective\r
- * contributors may be used to endorse or promote products derived from\r
- * this software without specific prior written permission.\r
- * \r
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS, INTEL CORPORATION AND\r
- * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,\r
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS\r
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS,\r
- * INTEL CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,\r
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\r
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\r
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\r
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\r
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
- * -\r
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.\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, and that\r
- * the name of Digital Equipment Corporation not be used in advertising or\r
- * publicity pertaining to distribution of the document or software without\r
- * specific, written prior permission.\r
- *\r
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL\r
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES\r
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT\r
- * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL\r
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR\r
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS\r
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS\r
- * SOFTWARE.\r
- * -\r
- * --Copyright--\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
-\r
-#if defined(LIBC_SCCS) && !defined(lint)\r
-static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93";\r
-static char rcsid[] = "$Id: getnetbydns.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/param.h>\r
-#include <sys/socket.h>\r
-#include <netinet/in.h>\r
-#include <arpa/inet.h>\r
-#include <arpa/nameser.h>\r
-\r
-#include <stdio.h>\r
-#include <netdb.h>\r
-#include <resolv.h>\r
-#include <ctype.h>\r
-#include <errno.h>\r
-#include <string.h>\r
-#include <unistd.h>\r
-#ifdef _ORG_FREEBSD_\r
-#include <syslog.h>\r
-#endif\r
-\r
-#include "res_config.h"\r
-#include "Socklib_internals.h"\r
-\r
-extern int h_errno;\r
-\r
-#define BYADDR 0\r
-#define BYNAME 1\r
-#define MAXALIASES 35\r
-\r
-#if PACKETSZ > 1024\r
-#define MAXPACKET PACKETSZ\r
-#else\r
-#define MAXPACKET 1024\r
-#endif\r
-\r
-typedef union {\r
- HEADER hdr;\r
- u_char buf[MAXPACKET];\r
-} querybuf;\r
-\r
-typedef union {\r
- long al;\r
- char ac;\r
-} align;\r
-\r
-static struct netent *\r
-getnetanswer(querybuf *answer, int anslen, int net_i)\r
-{\r
-\r
- register HEADER *hp;\r
- register u_char *cp;\r
- register int n;\r
- u_char *eom;\r
- int type, class, buflen, ancount, qdcount, haveanswer, i, nchar;\r
- char aux1[MAXHOSTNAMELEN], aux2[MAXHOSTNAMELEN], ans[MAXHOSTNAMELEN];\r
- char *in, *st, *pauxt, *bp, **ap;\r
- char *paux1 = &aux1[0], *paux2 = &aux2[0], flag = 0;\r
-static struct netent net_entry;\r
-static char *net_aliases[MAXALIASES], netbuf[PACKETSZ];\r
-\r
- /*\r
- * find first satisfactory answer\r
- *\r
- * answer --> +------------+ ( MESSAGE )\r
- * | Header |\r
- * +------------+\r
- * | Question | the question for the name server\r
- * +------------+\r
- * | Answer | RRs answering the question\r
- * +------------+\r
- * | Authority | RRs pointing toward an authority\r
- * | Additional | RRs holding additional information\r
- * +------------+\r
- */\r
- eom = answer->buf + anslen;\r
- hp = &answer->hdr;\r
- ancount = ntohs(hp->ancount); /* #/records in the answer section */\r
- qdcount = ntohs(hp->qdcount); /* #/entries in the question section */\r
- bp = netbuf;\r
- buflen = sizeof(netbuf);\r
- cp = answer->buf + HFIXEDSZ;\r
- if (!qdcount) {\r
- if (hp->aa)\r
- h_errno = HOST_NOT_FOUND;\r
- else\r
- h_errno = TRY_AGAIN;\r
- return (NULL);\r
- }\r
- while (qdcount-- > 0)\r
- cp += __dn_skipname(cp, eom) + QFIXEDSZ;\r
- ap = net_aliases;\r
- *ap = NULL;\r
- net_entry.n_aliases = net_aliases;\r
- haveanswer = 0;\r
- while (--ancount >= 0 && cp < eom) {\r
- n = dn_expand(answer->buf, eom, cp, bp, buflen);\r
- if ((n < 0) || !res_dnok(bp))\r
- break;\r
- cp += n;\r
- ans[0] = '\0';\r
- (void)strncpy(&ans[0], bp, sizeof(ans) - 1);\r
- ans[sizeof(ans) - 1] = '\0';\r
- GETSHORT(type, cp);\r
- GETSHORT(class, cp);\r
- cp += INT32SZ; /* TTL */\r
- GETSHORT(n, cp);\r
- if (class == C_IN && type == T_PTR) {\r
- n = dn_expand(answer->buf, eom, cp, bp, buflen);\r
- if ((n < 0) || !res_hnok(bp)) {\r
- cp += n;\r
- return (NULL);\r
- }\r
- cp += n; \r
- *ap++ = bp;\r
- bp += strlen(bp) + 1;\r
- net_entry.n_addrtype =\r
- (class == C_IN) ? AF_INET : AF_UNSPEC;\r
- haveanswer++;\r
- }\r
- }\r
- if (haveanswer) {\r
- *ap = NULL;\r
- switch (net_i) {\r
- case BYADDR:\r
- net_entry.n_name = *net_entry.n_aliases;\r
- net_entry.n_net = 0L;\r
- break;\r
- case BYNAME:\r
- in = *net_entry.n_aliases;\r
- net_entry.n_name = &ans[0];\r
- aux2[0] = '\0';\r
- for (i = 0; i < 4; i++) {\r
- for (st = in, nchar = 0;\r
- *st != '.';\r
- st++, nchar++)\r
- ;\r
- if (nchar != 1 || *in != '0' || flag) {\r
- flag = 1;\r
- (void)strncpy(paux1,\r
- (i==0) ? in : in-1,\r
- (i==0) ?nchar : nchar+1);\r
- paux1[(i==0) ? nchar : nchar+1] = '\0';\r
- pauxt = paux2;\r
- paux2 = strcat(paux1, paux2);\r
- paux1 = pauxt;\r
- }\r
- in = ++st;\r
- } \r
- net_entry.n_net = inet_network(paux2);\r
- break;\r
- }\r
- net_entry.n_aliases++;\r
- return (&net_entry);\r
- }\r
- h_errno = TRY_AGAIN;\r
- return (NULL);\r
-}\r
-\r
-struct netent *\r
-_getnetbydnsaddr(register unsigned long net, register int net_type)\r
-{\r
- unsigned int netbr[4];\r
- int nn, anslen;\r
- querybuf buf;\r
- char qbuf[MAXDNAME];\r
- unsigned long net2;\r
- struct netent *net_entry;\r
-\r
- if (net_type != AF_INET)\r
- return (NULL);\r
-\r
- for (nn = 4, net2 = net; net2; net2 >>= 8)\r
- netbr[--nn] = net2 & 0xff;\r
- switch (nn) {\r
- case 3: /* Class A */\r
- sprintf(qbuf, "0.0.0.%u.in-addr.arpa", netbr[3]);\r
- break;\r
- case 2: /* Class B */\r
- sprintf(qbuf, "0.0.%u.%u.in-addr.arpa", netbr[3], netbr[2]);\r
- break;\r
- case 1: /* Class C */\r
- sprintf(qbuf, "0.%u.%u.%u.in-addr.arpa", netbr[3], netbr[2],\r
- netbr[1]);\r
- break;\r
- case 0: /* Class D - E */\r
- sprintf(qbuf, "%u.%u.%u.%u.in-addr.arpa", netbr[3], netbr[2],\r
- netbr[1], netbr[0]);\r
- break;\r
- }\r
- anslen = res_query(qbuf, C_IN, T_PTR, (u_char *)&buf, sizeof(buf));\r
- if (anslen < 0) {\r
-#ifdef DEBUG\r
- if (_res.options & RES_DEBUG)\r
- printf("res_query failed\n");\r
-#endif\r
- return (NULL);\r
- }\r
- net_entry = getnetanswer(&buf, anslen, BYADDR);\r
- if (net_entry) {\r
- unsigned u_net = net; /* maybe net should be unsigned ? */\r
-\r
- /* Strip trailing zeros */\r
- while ((u_net & 0xff) == 0 && u_net != 0)\r
- u_net >>= 8;\r
- net_entry->n_net = u_net;\r
- return (net_entry);\r
- }\r
- return (NULL);\r
-}\r
-\r
-struct netent *\r
-_getnetbydnsname(register const char *net)\r
-{\r
- int anslen;\r
- querybuf buf;\r
- char qbuf[MAXDNAME];\r
-\r
- if ((_res.options & RES_INIT) == 0 && res_init() == -1) {\r
- h_errno = NETDB_INTERNAL;\r
- return (NULL);\r
- }\r
- strncpy(qbuf, net, sizeof(qbuf) - 1);\r
- qbuf[sizeof(qbuf) - 1] = '\0';\r
- anslen = res_search(qbuf, C_IN, T_PTR, (u_char *)&buf, sizeof(buf));\r
- if (anslen < 0) {\r
-#ifdef DEBUG\r
- if (_res.options & RES_DEBUG)\r
- printf("res_query failed\n");\r
-#endif\r
- return (NULL);\r
- }\r
- return getnetanswer(&buf, anslen, BYNAME);\r
-}\r
-\r
-void\r
-_setnetdnsent(int stayopen)\r
-{\r
- if (stayopen)\r
- _res.options |= RES_STAYOPEN | RES_USEVC;\r
-}\r
-\r
-void\r
-_endnetdnsent()\r
-{\r
- _res.options &= ~(RES_STAYOPEN | RES_USEVC);\r
- res_close();\r
-}\r
projects / mirror_edk2.git / blobdiff