nss/test-netdb.c

   1 /* Copyright (C) 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1998.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 /*
  21   Testing of some network related lookup functions.
  22   The system databases looked up are:
  23   - /etc/services
  24   - /etc/hosts
  25   - /etc/networks
  26   - /etc/protocols
  27   - /etc/rpc
  28   The tests try to be fairly generic and simple so that they work on
  29   every possible setup (and might therefore not detect some possible
  30   errors).
  31 */
  32
  33 #include <netdb.h>
  34 #include <rpc/netdb.h>
  35 #include <stdio.h>
  36 #include <arpa/inet.h>
  37 #include <netinet/in.h>
  38 #include <sys/param.h>
  39 #include <sys/socket.h>
  40 #include <unistd.h>
  41 #include "nss.h"
  42
  43 /*
  44   The following define is neccessary for glibc 2.0.6
  45 */
  46 #ifndef INET6_ADDRSTRLEN
  47 # define INET6_ADDRSTRLEN 46
  48 #endif
  49
  50 int error_count;
  51
  52 void
  53 output_servent (const char *call, struct servent *sptr)
  54 {
  55   char **pptr;
  56
  57   if (sptr == NULL)
  58     printf ("Call: %s returned NULL\n", call);
  59   else
  60     {
  61       printf ("Call: %s, returned: s_name: %s, s_port: %d, s_proto: %s\n",
  62               call, sptr->s_name, ntohs(sptr->s_port), sptr->s_proto);
  63       for (pptr = sptr->s_aliases; *pptr != NULL; pptr++)
  64         printf ("  alias: %s\n", *pptr);
  65     }
  66 }
  67
  68
  69 void
  70 test_services (void)
  71 {
  72   struct servent *sptr;
  73
  74   sptr = getservbyname ("domain", "tcp");
  75   output_servent ("getservbyname (\"domain\", \"tcp\")", sptr);
  76
  77   sptr = getservbyname ("domain", "udp");
  78   output_servent ("getservbyname (\"domain\", \"udp\")", sptr);
  79
  80   sptr = getservbyname ("domain", NULL);
  81   output_servent ("getservbyname (\"domain\", NULL)", sptr);
  82
  83   sptr = getservbyname ("not-existant", NULL);
  84   output_servent ("getservbyname (\"not-existant\", NULL)", sptr);
  85
  86   sptr = getservbyport (htons(53), "tcp");
  87   output_servent ("getservbyport (htons(53), \"tcp\")", sptr);
  88
  89   sptr = getservbyport (htons(53), NULL);
  90   output_servent ("getservbyport (htons(53), NULL)", sptr);
  91
  92   sptr = getservbyport (htons(1), "udp"); /* shouldn't exist */
  93   output_servent ("getservbyport (htons(1), \"udp\")", sptr);
  94
  95   setservent (0);
  96   do
  97     {
  98       sptr = getservent ();
  99       output_servent ("getservent ()", sptr);
 100     }
 101   while (sptr != NULL);
 102   endservent ();
 103 }
 104
 105
 106 void
 107 output_hostent (const char *call, struct hostent *hptr)
 108 {
 109   char **pptr;
 110   char buf[INET6_ADDRSTRLEN];
 111
 112   if (hptr == NULL)
 113     printf ("Call: %s returned NULL\n", call);
 114   else
 115     {
 116       printf ("Call: %s returned: name: %s, addr_type: %d\n",
 117               call, hptr->h_name, hptr->h_addrtype);
 118       for (pptr = hptr->h_aliases; *pptr != NULL; pptr++)
 119         printf ("  alias: %s\n", *pptr);
 120
 121       for (pptr = hptr->h_addr_list; *pptr != NULL; pptr++)
 122         printf ("  ip: %s\n",
 123                 inet_ntop (hptr->h_addrtype, *pptr, buf, sizeof (buf)));
 124     }
 125 }
 126
 127 void
 128 test_hosts (void)
 129 {
 130   struct hostent *hptr1, *hptr2;
 131   char name[MAXHOSTNAMELEN];
 132   size_t namelen = sizeof(name);
 133   struct in_addr ip;
 134
 135   hptr1 = gethostbyname ("localhost");
 136   hptr2 = gethostbyname ("LocalHost");
 137   if (hptr1 != NULL || hptr2 != NULL)
 138     {
 139       if (hptr1 == NULL)
 140         {
 141           printf ("localhost not found - but LocalHost found:-(\n");
 142           ++error_count;
 143         }
 144       else if (hptr2 == NULL)
 145         {
 146           printf ("LocalHost not found - but localhost found:-(\n");
 147           ++error_count;
 148         }
 149       else if (strcmp (hptr1->h_name, hptr2->h_name) != 0)
 150         {
 151           printf ("localhost and LocalHost have different canoncial name\n");
 152           printf ("gethostbyname (\"localhost\")->%s\n", hptr1->h_name);
 153           printf ("gethostbyname (\"LocalHost\")->%s\n", hptr2->h_name);
 154           ++error_count;
 155         }
 156       else
 157         output_hostent ("gethostbyname(\"localhost\")", hptr1);
 158     }
 159
 160
 161   if (gethostname (name, namelen) == 0)
 162     {
 163       printf ("Hostname: %s\n", name);
 164       hptr1 = gethostbyname (name);
 165       output_hostent ("gethostbyname (gethostname(...))", hptr1);
 166     }
 167
 168   ip.s_addr = htonl (INADDR_LOOPBACK);
 169   hptr1 = gethostbyaddr ((char *)&ip, sizeof(ip), AF_INET);
 170   if (hptr1 != NULL)
 171     {
 172       printf ("official name of 127.0.0.1: %s\n", hptr1->h_name);
 173     }
 174
 175   sethostent (0);
 176   do
 177     {
 178       hptr1 = gethostent ();
 179       output_hostent ("gethostent ()", hptr1);
 180     }
 181   while (hptr1 != NULL);
 182   endhostent ();
 183
 184 }
 185
 186
 187 void
 188 output_netent (const char *call, struct netent *nptr)
 189 {
 190   char **pptr;
 191
 192   if (nptr == NULL)
 193     printf ("Call: %s returned NULL\n", call);
 194   else
 195     {
 196       struct in_addr ip;
 197
 198       ip.s_addr = htonl(nptr->n_net);
 199       printf ("Call: %s, returned: n_name: %s, network_number: %s\n",
 200               call, nptr->n_name, inet_ntoa (ip));
 201
 202       for (pptr = nptr->n_aliases; *pptr != NULL; pptr++)
 203         printf ("  alias: %s\n", *pptr);
 204     }
 205 }
 206
 207 void
 208 test_network (void)
 209 {
 210   struct netent *nptr;
 211   u_int32_t ip;
 212
 213   /*
 214     this test needs the following line in /etc/networks:
 215      loopback        127.0.0.0
 216   */
 217   nptr = getnetbyname ("loopback");
 218   output_netent ("getnetbyname (\"loopback\")",nptr);
 219
 220   ip = inet_network ("127.0.0.0");
 221   nptr = getnetbyaddr (ip, AF_INET);
 222   output_netent ("getnetbyaddr (inet_network (\"127.0.0.0\"), AF_INET)",nptr);
 223
 224   setnetent (0);
 225   do
 226     {
 227       nptr = getnetent ();
 228       output_netent ("getnetent ()", nptr);
 229     }
 230   while (nptr != NULL);
 231   endnetent ();
 232 }
 233
 234
 235 void
 236 output_protoent (const char *call, struct protoent *prptr)
 237 {
 238   char **pptr;
 239
 240   if (prptr == NULL)
 241     printf ("Call: %s returned NULL\n", call);
 242   else
 243     {
 244       printf ("Call: %s, returned: p_name: %s, p_proto: %d\n",
 245               call, prptr->p_name, prptr->p_proto);
 246       for (pptr = prptr->p_aliases; *pptr != NULL; pptr++)
 247         printf ("  alias: %s\n", *pptr);
 248     }
 249 }
 250
 251
 252 void
 253 test_protocols (void)
 254 {
 255   struct protoent *prptr;
 256
 257   prptr = getprotobyname ("IP");
 258   output_protoent ("getprotobyname (\"IP\")", prptr);
 259
 260   prptr = getprotobynumber (1);
 261   output_protoent ("getprotobynumber (1)", prptr);
 262
 263   setprotoent (0);
 264   do
 265     {
 266       prptr = getprotoent ();
 267       output_protoent ("getprotoent ()", prptr);
 268     }
 269   while (prptr != NULL);
 270   endprotoent ();
 271 }
 272
 273
 274 void
 275 output_rpcent (const char *call, struct rpcent *rptr)
 276 {
 277   char **pptr;
 278
 279   if (rptr == NULL)
 280     printf ("Call: %s returned NULL\n", call);
 281   else
 282     {
 283       printf ("Call: %s, returned: r_name: %s, r_number: %d\n",
 284                 call, rptr->r_name, rptr->r_number);
 285       for (pptr = rptr->r_aliases; *pptr != NULL; pptr++)
 286         printf ("  alias: %s\n", *pptr);
 287     }
 288 }
 289
 290 void
 291 test_rpc (void)
 292 {
 293   struct rpcent *rptr;
 294
 295   rptr = getrpcbyname ("portmap");
 296   output_rpcent ("getrpcyname (\"portmap\")", rptr);
 297
 298   rptr = getrpcbynumber (100000);
 299   output_rpcent ("getrpcbynumber (100000)", rptr);
 300
 301   setrpcent (0);
 302   do
 303     {
 304       rptr = getrpcent ();
 305       output_rpcent ("getrpcent ()", rptr);
 306     }
 307   while (rptr != NULL);
 308   endrpcent ();
 309 }
 310
 311 /*
 312   Override /etc/nsswitch.conf for this program.
 313   This is mainly useful for developers
 314 */
 315 void
 316 setdb (const char *dbname)
 317 {
 318   if (strcmp ("db", dbname))
 319       {
 320         /*
 321           db is not implemented for hosts, networks
 322         */
 323         __nss_configure_lookup ("hosts", dbname);
 324         __nss_configure_lookup ("networks", dbname);
 325       }
 326   __nss_configure_lookup ("protocols", dbname);
 327   __nss_configure_lookup ("rpc", dbname);
 328   __nss_configure_lookup ("services", dbname);
 329 }
 330
 331
 332 int
 333 main (void)
 334 {
 335   /*
 336     setdb ("db");
 337   */
 338   test_hosts ();
 339   test_network ();
 340   test_protocols ();
 341   test_rpc ();
 342   test_services ();
 343
 344   if (error_count)
 345     printf ("\n %d errors occured!\n", error_count);
 346   else
 347     printf ("No visible errors occured!\n");
 348
 349   exit (error_count);
 350 }