[mirror_edk2.git] / StdLib / BsdSocketLib / getnetbyht.c

/*\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
Commit	Line	Data
d7ce7006	1	/*\r
	2	* Copyright (c) 1983, 1993\r
	3	* The Regents of the University of California. All rights reserved.\r
	4	*\r
	5	* Redistribution and use in source and binary forms, with or without\r
	6	* modification, are permitted provided that the following conditions\r
	7	* are met:\r
	8	* 1. Redistributions of source code must retain the above copyright\r
	9	* notice, this list of conditions and the following disclaimer.\r
	10	* 2. Redistributions in binary form must reproduce the above copyright\r
	11	* notice, this list of conditions and the following disclaimer in the\r
	12	* documentation and/or other materials provided with the distribution.\r
	13	* 3. All advertising materials mentioning features or use of this software\r
	14	* must display the following acknowledgement:\r
	15	* This product includes software developed by the University of\r
	16	* California, Berkeley and its contributors.\r
	17	* 4. Neither the name of the University nor the names of its contributors\r
	18	* may be used to endorse or promote products derived from this software\r
	19	* without specific prior written permission.\r
	20	*\r
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
	31	* SUCH DAMAGE.\r
	32	*/\r
	33	\r
	34	/* Portions Copyright (c) 1993 Carlos Leandro and Rui Salgueiro\r
	35	* Dep. Matematica Universidade de Coimbra, Portugal, Europe\r
	36	*\r
	37	* Permission to use, copy, modify, and distribute this software for any\r
	38	* purpose with or without fee is hereby granted, provided that the above\r
	39	* copyright notice and this permission notice appear in all copies.\r
	40	*\r
	41	* from getnetent.c 1.1 (Coimbra) 93/06/02\r
	42	*/\r
	43	\r
	44	#if defined(LIBC_SCCS) && !defined(lint)\r
	45	static char sccsid[] = "@(#)getnetent.c 8.1 (Berkeley) 6/4/93";\r
	46	static char orig_rcsid[] = "From: Id: getnetent.c,v 8.4 1997/06/01 20:34:37 vixie Exp";\r
	47	static chat rcsid[] = "$Id: getnetbyht.c,v 1.1.1.1 2003/11/19 01:51:27 kyu3 Exp $";\r
	48	#endif /* LIBC_SCCS and not lint */\r
	49	\r
	50	#include <sys/types.h>\r
	51	#include <sys/socket.h>\r
	52	#include <netinet/in.h>\r
	53	#include <arpa/inet.h>\r
	54	#include <arpa/nameser.h>\r
	55	#include <netdb.h>\r
	56	#include <stdio.h>\r
	57	#include <string.h>\r
	58	\r
	59	#define MAXALIASES 35\r
	60	\r
	61	static FILE *netf;\r
	62	static char line[BUFSIZ+1];\r
	63	static struct netent net;\r
	64	static char *net_aliases[MAXALIASES];\r
65	static int _net_stayopen;\r
66	\r
67	void\r
68	_setnethtent(int f)\r
69	{\r
70	\r
71	if (netf == NULL)\r
72	netf = fopen(_PATH_NETWORKS, "r" );\r
73	else\r
74	rewind(netf);\r
75	_net_stayopen \|= f;\r
76	}\r
77	\r
78	void\r
79	_endnethtent()\r
80	{\r
81	\r
82	if (netf) {\r
83	fclose(netf);\r
84	netf = NULL;\r
85	}\r
86	_net_stayopen = 0;\r
87	}\r
88	\r
89	struct netent *\r
90	getnetent()\r
91	{\r
92	char *p;\r
93	register char cp, *q;\r
94	\r
95	if (netf == NULL && (netf = fopen(_PATH_NETWORKS, "r" )) == NULL)\r
96	return (NULL);\r
97	again:\r
98	p = fgets(line, sizeof line, netf);\r
99	if (p == NULL)\r
100	return (NULL);\r
101	if (*p == '#')\r
102	goto again;\r
103	cp = strpbrk(p, "#\n");\r
104	if (cp == NULL)\r
105	goto again;\r
106	*cp = '\0';\r
107	net.n_name = p;\r
108	cp = strpbrk(p, " \t");\r
109	if (cp == NULL)\r
110	goto again;\r
111	*cp++ = '\0';\r
112	while (cp == ' ' \|\| cp == '\t')\r
113	cp++;\r
114	p = strpbrk(cp, " \t");\r
115	if (p != NULL)\r
116	*p++ = '\0';\r
117	net.n_net = inet_network(cp);\r
118	net.n_addrtype = AF_INET;\r
119	q = net.n_aliases = net_aliases;\r
120	if (p != NULL) \r
121	cp = p;\r
122	while (cp && *cp) {\r
123	if (cp == ' ' \|\| cp == '\t') {\r
124	cp++;\r
125	continue;\r
126	}\r
127	if (q < &net_aliases[MAXALIASES - 1])\r
128	*q++ = cp;\r
129	cp = strpbrk(cp, " \t");\r
130	if (cp != NULL)\r
131	*cp++ = '\0';\r
132	}\r
133	*q = NULL;\r
134	return (&net);\r
135	}\r
136	\r
137	struct netent *\r
138	_getnetbyhtname(register const char *name)\r
139	{\r
140	register struct netent *p;\r
141	register char **cp;\r
142	\r
143	setnetent(_net_stayopen);\r
144	while ( NULL != (p = getnetent()) ) {\r
145	if (strcasecmp(p->n_name, name) == 0)\r
146	break;\r
147	for (cp = p->n_aliases; *cp != 0; cp++)\r
148	if (strcasecmp(*cp, name) == 0)\r
149	goto found;\r
150	}\r
151	found:\r
152	if (!_net_stayopen)\r
153	endnetent();\r
154	return (p);\r
155	}\r
156	\r
157	struct netent *\r
158	_getnetbyhtaddr(register unsigned long net, register int type)\r
159	{\r
160	register struct netent *p;\r
161	\r
162	setnetent(_net_stayopen);\r
163	while ( NULL != (p = getnetent()) )\r
164	if (p->n_addrtype == type && p->n_net == net)\r
165	break;\r
166	if (!_net_stayopen)\r
167	endnetent();\r
168	return (p);\r
169	}\r