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

/*-\r
 * Copyright (c) 1994, Garrett Wollman\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
 *\r
 * THIS SOFTWARE IS PROVIDED BY THE 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
#if defined(LIBC_SCCS) && !defined(lint)\r
static char rcsid[] = "$Id: getnetnamadr.c,v 1.1.1.1 2003/11/19 01:51:28 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 <netdb.h>\r
#include <stdio.h>\r
#include <ctype.h>\r
#include <errno.h>\r
#include <paths.h>\r
#include <string.h>\r
\r
#include "Socklib_internals.h"\r
\r
enum service_type {\r
  SERVICE_NONE = 0,\r
  SERVICE_BIND,\r
  SERVICE_TABLE,\r
  SERVICE_NIS };\r
#define SERVICE_MAX	SERVICE_NIS\r
\r
static struct {\r
  const char *name;\r
  enum service_type type;\r
} service_names[] = {\r
  { "hosts", SERVICE_TABLE },\r
  { _PATH_HOSTS, SERVICE_TABLE },\r
  { "hosttable", SERVICE_TABLE },\r
  { "htable", SERVICE_TABLE },\r
  { "bind", SERVICE_BIND },\r
  { "dns", SERVICE_BIND },\r
  { "domain", SERVICE_BIND },\r
  { "yp", SERVICE_NIS },\r
  { "yellowpages", SERVICE_NIS },\r
  { "nis", SERVICE_NIS },\r
  { 0, SERVICE_NONE }\r
};\r
\r
static enum service_type service_order[SERVICE_MAX + 1];\r
static int service_done = 0;\r
\r
static enum service_type\r
get_service_name(const char *name) {\r
	int i;\r
	for(i = 0; service_names[i].type != SERVICE_NONE; i++) {\r
		if(!strcasecmp(name, service_names[i].name)) {\r
			return service_names[i].type;\r
		}\r
	}\r
	return SERVICE_NONE;\r
}\r
\r
static void\r
init_services()\r
{\r
	char *cp, *p, buf[BUFSIZ];\r
	register int cc = 0;\r
	FILE *fd;\r
\r
	if ((fd = (FILE *)fopen(_PATH_NETCONF, "r")) == NULL) {\r
				/* make some assumptions */\r
		service_order[0] = SERVICE_TABLE;\r
		service_order[1] = SERVICE_NONE;\r
	} else {\r
		while (fgets(buf, BUFSIZ, fd) != NULL && cc < SERVICE_MAX) {\r
			if(buf[0] == '#')\r
				continue;\r
\r
			p = buf;\r
			while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0')\r
				;\r
			if (cp == NULL)\r
				continue;\r
			do {\r
				if (isalpha(cp[0])) {\r
					service_order[cc] = get_service_name(cp);\r
					if(service_order[cc] != SERVICE_NONE)\r
						cc++;\r
				}\r
				while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0')\r
					;\r
			} while(cp != NULL && cc < SERVICE_MAX);\r
		}\r
		service_order[cc] = SERVICE_NONE;\r
		fclose(fd);\r
	}\r
	service_done = 1;\r
}\r
\r
struct netent *\r
getnetbyname(const char *name)\r
{\r
	struct netent *hp = 0;\r
	int nserv = 0;\r
\r
	if (!service_done)\r
		init_services();\r
\r
	while (!hp) {\r
		switch (service_order[nserv]) {\r
		      case SERVICE_NONE:\r
			return NULL;\r
		      case SERVICE_TABLE:\r
			hp = _getnetbyhtname(name);\r
			break;\r
		      case SERVICE_BIND:\r
			hp = _getnetbydnsname(name);\r
			break;\r
		      case SERVICE_NIS:\r
			hp = _getnetbynisname(name);\r
			break;\r
		}\r
		nserv++;\r
	}\r
	return hp;\r
}\r
\r
struct netent *\r
getnetbyaddr(uint32_t addr, int af)\r
{\r
	struct netent *hp = 0;\r
	int nserv = 0;\r
\r
	if (!service_done)\r
		init_services();\r
\r
	while (!hp) {\r
		switch (service_order[nserv]) {\r
		      case SERVICE_NONE:\r
			return 0;\r
		      case SERVICE_TABLE:\r
			hp = _getnetbyhtaddr(addr, af);\r
			break;\r
		      case SERVICE_BIND:\r
			hp = _getnetbydnsaddr(addr, af);\r
			break;\r
		      case SERVICE_NIS:\r
			hp = _getnetbynisaddr(addr, af);\r
			break;\r
		}\r
		nserv++;\r
	}\r
	return hp;\r
}\r
\r
void\r
setnetent(int stayopen)\r
{\r
	_setnethtent(stayopen);\r
	_setnetdnsent(stayopen);\r
}\r
\r
void\r
endnetent()\r
{\r
	_endnethtent();\r
	_endnetdnsent();\r
}\r
Commit	Line	Data
d7ce7006	1	/*-\r
	2	* Copyright (c) 1994, Garrett Wollman\r
	3	*\r
	4	* Redistribution and use in source and binary forms, with or without\r
	5	* modification, are permitted provided that the following conditions\r
	6	* are met:\r
	7	* 1. Redistributions of source code must retain the above copyright\r
	8	* notice, this list of conditions and the following disclaimer.\r
	9	* 2. Redistributions in binary form must reproduce the above copyright\r
	10	* notice, this list of conditions and the following disclaimer in the\r
	11	* documentation and/or other materials provided with the distribution.\r
	12	*\r
	13	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND\r
	14	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
	16	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
	17	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
	18	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
	19	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
	20	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
	21	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
	22	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
	23	* SUCH DAMAGE.\r
	24	*/\r
	25	\r
	26	#if defined(LIBC_SCCS) && !defined(lint)\r
	27	static char rcsid[] = "$Id: getnetnamadr.c,v 1.1.1.1 2003/11/19 01:51:28 kyu3 Exp $";\r
	28	#endif /* LIBC_SCCS and not lint */\r
	29	\r
	30	#include <sys/param.h>\r
	31	#include <sys/socket.h>\r
	32	#include <netinet/in.h>\r
	33	#include <arpa/inet.h>\r
	34	#include <netdb.h>\r
	35	#include <stdio.h>\r
	36	#include <ctype.h>\r
	37	#include <errno.h>\r
	38	#include <paths.h>\r
	39	#include <string.h>\r
	40	\r
	41	#include "Socklib_internals.h"\r
	42	\r
	43	enum service_type {\r
	44	SERVICE_NONE = 0,\r
	45	SERVICE_BIND,\r
	46	SERVICE_TABLE,\r
	47	SERVICE_NIS };\r
	48	#define SERVICE_MAX SERVICE_NIS\r
	49	\r
	50	static struct {\r
	51	const char *name;\r
	52	enum service_type type;\r
	53	} service_names[] = {\r
	54	{ "hosts", SERVICE_TABLE },\r
	55	{ _PATH_HOSTS, SERVICE_TABLE },\r
	56	{ "hosttable", SERVICE_TABLE },\r
	57	{ "htable", SERVICE_TABLE },\r
	58	{ "bind", SERVICE_BIND },\r
	59	{ "dns", SERVICE_BIND },\r
	60	{ "domain", SERVICE_BIND },\r
	61	{ "yp", SERVICE_NIS },\r
	62	{ "yellowpages", SERVICE_NIS },\r
	63	{ "nis", SERVICE_NIS },\r
	64	{ 0, SERVICE_NONE }\r
65	};\r
66	\r
67	static enum service_type service_order[SERVICE_MAX + 1];\r
68	static int service_done = 0;\r
69	\r
70	static enum service_type\r
71	get_service_name(const char *name) {\r
72	int i;\r
73	for(i = 0; service_names[i].type != SERVICE_NONE; i++) {\r
74	if(!strcasecmp(name, service_names[i].name)) {\r
75	return service_names[i].type;\r
76	}\r
77	}\r
78	return SERVICE_NONE;\r
79	}\r
80	\r
81	static void\r
82	init_services()\r
83	{\r
84	char cp, p, buf[BUFSIZ];\r
85	register int cc = 0;\r
86	FILE *fd;\r
87	\r
88	if ((fd = (FILE *)fopen(_PATH_NETCONF, "r")) == NULL) {\r
89	/* make some assumptions */\r
90	service_order[0] = SERVICE_TABLE;\r
91	service_order[1] = SERVICE_NONE;\r
92	} else {\r
93	while (fgets(buf, BUFSIZ, fd) != NULL && cc < SERVICE_MAX) {\r
94	if(buf[0] == '#')\r
95	continue;\r
96	\r
97	p = buf;\r
98	while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0')\r
99	;\r
100	if (cp == NULL)\r
101	continue;\r
102	do {\r
103	if (isalpha(cp[0])) {\r
104	service_order[cc] = get_service_name(cp);\r
105	if(service_order[cc] != SERVICE_NONE)\r
106	cc++;\r
107	}\r
108	while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0')\r
109	;\r
110	} while(cp != NULL && cc < SERVICE_MAX);\r
111	}\r
112	service_order[cc] = SERVICE_NONE;\r
113	fclose(fd);\r
114	}\r
115	service_done = 1;\r
116	}\r
117	\r
118	struct netent *\r
119	getnetbyname(const char *name)\r
120	{\r
121	struct netent *hp = 0;\r
122	int nserv = 0;\r
123	\r
124	if (!service_done)\r
125	init_services();\r
126	\r
127	while (!hp) {\r
128	switch (service_order[nserv]) {\r
129	case SERVICE_NONE:\r
130	return NULL;\r
131	case SERVICE_TABLE:\r
132	hp = _getnetbyhtname(name);\r
133	break;\r
134	case SERVICE_BIND:\r
135	hp = _getnetbydnsname(name);\r
136	break;\r
137	case SERVICE_NIS:\r
138	hp = _getnetbynisname(name);\r
139	break;\r
140	}\r
141	nserv++;\r
142	}\r
143	return hp;\r
144	}\r
145	\r
146	struct netent *\r
147	getnetbyaddr(uint32_t addr, int af)\r
148	{\r
149	struct netent *hp = 0;\r
150	int nserv = 0;\r
151	\r
152	if (!service_done)\r
153	init_services();\r
154	\r
155	while (!hp) {\r
156	switch (service_order[nserv]) {\r
157	case SERVICE_NONE:\r
158	return 0;\r
159	case SERVICE_TABLE:\r
160	hp = _getnetbyhtaddr(addr, af);\r
161	break;\r
162	case SERVICE_BIND:\r
163	hp = _getnetbydnsaddr(addr, af);\r
164	break;\r
165	case SERVICE_NIS:\r
166	hp = _getnetbynisaddr(addr, af);\r
167	break;\r
168	}\r
169	nserv++;\r
170	}\r
171	return hp;\r
172	}\r
173	\r
174	void\r
175	setnetent(int stayopen)\r
176	{\r
177	_setnethtent(stayopen);\r
178	_setnetdnsent(stayopen);\r
179	}\r
180	\r
181	void\r
182	endnetent()\r
183	{\r
184	_endnethtent();\r
185	_endnetdnsent();\r
186	}\r