2 * Copyright (c) 1994, Garrett Wollman
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * $FreeBSD: src/lib/libc/net/getnetnamadr.c,v 1.12.2.1 2001/03/05 10:47:08 obrien Exp $
26 * $DragonFly: src/lib/libc/net/getnetnamadr.c,v 1.4 2005/11/13 03:04:47 swildner Exp $
29 #include <sys/param.h>
30 #include <sys/socket.h>
31 #include <netinet/in.h>
32 #include <arpa/inet.h>
39 #define _PATH_NETCONF "/etc/host.conf"
47 #define SERVICE_MAX SERVICE_NIS
51 enum service_type type
;
53 { "hosts", SERVICE_TABLE
},
54 { "/etc/hosts", SERVICE_TABLE
},
55 { "hosttable", SERVICE_TABLE
},
56 { "htable", SERVICE_TABLE
},
57 { "bind", SERVICE_BIND
},
58 { "dns", SERVICE_BIND
},
59 { "domain", SERVICE_BIND
},
60 { "yp", SERVICE_NIS
},
61 { "yellowpages", SERVICE_NIS
},
62 { "nis", SERVICE_NIS
},
66 static enum service_type service_order
[SERVICE_MAX
+ 1];
67 static int service_done
= 0;
69 static enum service_type
70 get_service_name(const char *name
)
73 for(i
= 0; service_names
[i
].type
!= SERVICE_NONE
; i
++) {
74 if(!strcasecmp(name
, service_names
[i
].name
)) {
75 return service_names
[i
].type
;
84 char *cp
, *p
, buf
[BUFSIZ
];
88 if ((fd
= (FILE *)fopen(_PATH_NETCONF
, "r")) == NULL
) {
89 /* make some assumptions */
90 service_order
[0] = SERVICE_TABLE
;
91 service_order
[1] = SERVICE_NONE
;
93 while (fgets(buf
, BUFSIZ
, fd
) != NULL
&& cc
< SERVICE_MAX
) {
98 while ((cp
= strsep(&p
, "\n \t,:;")) != NULL
&& *cp
== '\0')
103 if (isalpha((unsigned char)cp
[0])) {
104 service_order
[cc
] = get_service_name(cp
);
105 if(service_order
[cc
] != SERVICE_NONE
)
108 while ((cp
= strsep(&p
, "\n \t,:;")) != NULL
&& *cp
== '\0')
110 } while(cp
!= NULL
&& cc
< SERVICE_MAX
);
112 service_order
[cc
] = SERVICE_NONE
;
119 getnetbyname(const char *name
)
121 struct netent
*hp
= 0;
128 switch (service_order
[nserv
]) {
132 hp
= _getnetbyhtname(name
);
135 hp
= _getnetbydnsname(name
);
138 hp
= _getnetbynisname(name
);
147 getnetbyaddr(u_long addr
, int af
)
149 struct netent
*hp
= 0;
156 switch (service_order
[nserv
]) {
160 hp
= _getnetbyhtaddr(addr
, af
);
163 hp
= _getnetbydnsaddr(addr
, af
);
166 hp
= _getnetbynisaddr(addr
, af
);
175 setnetent(int stayopen
)
177 _setnethtent(stayopen
);
178 _setnetdnsent(stayopen
);