1 /* Copyright (C) 1998-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Andreas Jaeger <aj@suse.de>, 1998.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 Testing of some network related lookup functions.
21 The system databases looked up are:
26 The tests try to be fairly generic and simple so that they work on
27 every possible setup (and might therefore not detect some possible
35 #include <arpa/inet.h>
36 #include <netinet/in.h>
37 #include <sys/param.h>
38 #include <sys/socket.h>
43 #include <support/support.h>
46 The following define is necessary for glibc 2.0.6
48 #ifndef INET6_ADDRSTRLEN
49 # define INET6_ADDRSTRLEN 46
55 output_servent (const char *call
, struct servent
*sptr
)
60 printf ("Call: %s returned NULL\n", call
);
63 printf ("Call: %s, returned: s_name: %s, s_port: %d, s_proto: %s\n",
64 call
, sptr
->s_name
, ntohs(sptr
->s_port
), sptr
->s_proto
);
65 for (pptr
= sptr
->s_aliases
; *pptr
!= NULL
; pptr
++)
66 printf (" alias: %s\n", *pptr
);
76 sptr
= getservbyname ("domain", "tcp");
77 output_servent ("getservbyname (\"domain\", \"tcp\")", sptr
);
79 sptr
= getservbyname ("domain", "udp");
80 output_servent ("getservbyname (\"domain\", \"udp\")", sptr
);
82 sptr
= getservbyname ("domain", NULL
);
83 output_servent ("getservbyname (\"domain\", NULL)", sptr
);
85 sptr
= getservbyname ("not-existant", NULL
);
86 output_servent ("getservbyname (\"not-existant\", NULL)", sptr
);
88 /* This shouldn't return anything. */
89 sptr
= getservbyname ("", "");
90 output_servent ("getservbyname (\"\", \"\")", sptr
);
92 sptr
= getservbyname ("", "tcp");
93 output_servent ("getservbyname (\"\", \"tcp\")", sptr
);
95 sptr
= getservbyport (htons(53), "tcp");
96 output_servent ("getservbyport (htons(53), \"tcp\")", sptr
);
98 sptr
= getservbyport (htons(53), NULL
);
99 output_servent ("getservbyport (htons(53), NULL)", sptr
);
101 sptr
= getservbyport (htons(1), "udp"); /* shouldn't exist */
102 output_servent ("getservbyport (htons(1), \"udp\")", sptr
);
107 sptr
= getservent ();
108 output_servent ("getservent ()", sptr
);
110 while (sptr
!= NULL
);
116 output_hostent (const char *call
, struct hostent
*hptr
)
119 char buf
[INET6_ADDRSTRLEN
];
122 printf ("Call: %s returned NULL\n", call
);
125 printf ("Call: %s returned: name: %s, addr_type: %d\n",
126 call
, hptr
->h_name
, hptr
->h_addrtype
);
128 for (pptr
= hptr
->h_aliases
; *pptr
!= NULL
; pptr
++)
129 printf (" alias: %s\n", *pptr
);
131 for (pptr
= hptr
->h_addr_list
; *pptr
!= NULL
; pptr
++)
133 inet_ntop (hptr
->h_addrtype
, *pptr
, buf
, sizeof (buf
)));
140 struct hostent
*hptr1
, *hptr2
;
145 hptr1
= gethostbyname ("localhost");
146 hptr2
= gethostbyname ("LocalHost");
147 if (hptr1
!= NULL
|| hptr2
!= NULL
)
151 printf ("localhost not found - but LocalHost found:-(\n");
154 else if (hptr2
== NULL
)
156 printf ("LocalHost not found - but localhost found:-(\n");
159 else if (strcmp (hptr1
->h_name
, hptr2
->h_name
) != 0)
161 printf ("localhost and LocalHost have different canoncial name\n");
162 printf ("gethostbyname (\"localhost\")->%s\n", hptr1
->h_name
);
163 printf ("gethostbyname (\"LocalHost\")->%s\n", hptr2
->h_name
);
167 output_hostent ("gethostbyname(\"localhost\")", hptr1
);
170 hptr1
= gethostbyname ("127.0.0.1");
171 output_hostent ("gethostbyname (\"127.0.0.1\")", hptr1
);
173 hptr1
= gethostbyname ("10.1234");
174 output_hostent ("gethostbyname (\"10.1234\")", hptr1
);
176 hptr1
= gethostbyname2 ("localhost", AF_INET
);
177 output_hostent ("gethostbyname2 (\"localhost\", AF_INET)", hptr1
);
179 while (gethostname (name
, namelen
) < 0 && errno
== ENAMETOOLONG
)
181 namelen
+= 2; /* tiny increments to test a lot */
182 name
= xrealloc (name
, namelen
);
184 if (gethostname (name
, namelen
) == 0)
186 printf ("Hostname: %s\n", name
);
189 hptr1
= gethostbyname (name
);
190 output_hostent ("gethostbyname (gethostname(...))", hptr1
);
194 ip
.s_addr
= htonl (INADDR_LOOPBACK
);
195 hptr1
= gethostbyaddr ((char *) &ip
, sizeof(ip
), AF_INET
);
198 printf ("official name of 127.0.0.1: %s\n", hptr1
->h_name
);
204 hptr1
= gethostent ();
205 output_hostent ("gethostent ()", hptr1
);
207 while (hptr1
!= NULL
);
214 output_netent (const char *call
, struct netent
*nptr
)
219 printf ("Call: %s returned NULL\n", call
);
224 ip
.s_addr
= htonl(nptr
->n_net
);
225 printf ("Call: %s, returned: n_name: %s, network_number: %s\n",
226 call
, nptr
->n_name
, inet_ntoa (ip
));
228 for (pptr
= nptr
->n_aliases
; *pptr
!= NULL
; pptr
++)
229 printf (" alias: %s\n", *pptr
);
240 This test needs the following line in /etc/networks:
243 nptr
= getnetbyname ("loopback");
244 output_netent ("getnetbyname (\"loopback\")",nptr
);
246 nptr
= getnetbyname ("LoopBACK");
247 output_netent ("getnetbyname (\"LoopBACK\")",nptr
);
249 ip
= inet_network ("127.0.0.0");
250 nptr
= getnetbyaddr (ip
, AF_INET
);
251 output_netent ("getnetbyaddr (inet_network (\"127.0.0.0\"), AF_INET)",nptr
);
257 output_netent ("getnetent ()", nptr
);
259 while (nptr
!= NULL
);
265 output_protoent (const char *call
, struct protoent
*prptr
)
270 printf ("Call: %s returned NULL\n", call
);
273 printf ("Call: %s, returned: p_name: %s, p_proto: %d\n",
274 call
, prptr
->p_name
, prptr
->p_proto
);
275 for (pptr
= prptr
->p_aliases
; *pptr
!= NULL
; pptr
++)
276 printf (" alias: %s\n", *pptr
);
282 test_protocols (void)
284 struct protoent
*prptr
;
286 prptr
= getprotobyname ("IP");
287 output_protoent ("getprotobyname (\"IP\")", prptr
);
289 prptr
= getprotobynumber (1);
290 output_protoent ("getprotobynumber (1)", prptr
);
295 prptr
= getprotoent ();
296 output_protoent ("getprotoent ()", prptr
);
298 while (prptr
!= NULL
);
303 /* Override /etc/nsswitch.conf for this program. This is mainly
304 useful for developers. */
305 static void __attribute__ ((unused
))
306 setdb (const char *dbname
)
308 if (strcmp ("db", dbname
))
311 db is not implemented for hosts, networks
313 __nss_configure_lookup ("hosts", dbname
);
314 __nss_configure_lookup ("networks", dbname
);
316 __nss_configure_lookup ("protocols", dbname
);
317 __nss_configure_lookup ("services", dbname
);
334 printf ("\n %d errors occurred!\n", error_count
);
336 printf ("No visible errors occurred!\n");
338 return (error_count
!= 0);
341 #include <support/test-driver.c>