1 /* Test that nsswitch.conf reloading actually works.
2 Copyright (C) 2020-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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 <https://www.gnu.org/licenses/>. */
23 #include <sys/types.h>
27 #include <support/support.h>
28 #include <support/check.h>
32 /* Size of buffers used by *_r functions. */
33 #define TESTBUFLEN 4096
35 static struct passwd pwd_table_1[] = {
44 static const char *hostaddr_5[] =
46 "ABCD", "abcd", "1234", NULL
49 static const char *hostaddr_15[] =
54 static const char *hostaddr_25[] =
60 static struct hostent host_table_1[] = {
68 _nss_test1_init_hook(test_tables *t)
70 t->pwd_table = pwd_table_1;
71 t->host_table = host_table_1;
74 /* The first of these must not appear in pwd_table_1. */
75 static struct passwd pwd_table_2[] = {
82 static const char *hostaddr_6[] =
87 static const char *hostaddr_16[] =
92 static const char *hostaddr_26[] =
97 static struct hostent host_table_2[] = {
105 _nss_test2_init_hook(test_tables *t)
107 t->pwd_table = pwd_table_2;
108 t->host_table = host_table_2;
112 must_be_tests (struct passwd *pt, struct hostent *ht)
118 for (i = 0; !PWD_ISLAST (&pt[i]); ++i)
120 p = getpwuid (pt[i].pw_uid);
121 TEST_VERIFY (p != NULL);
124 TEST_VERIFY (strcmp (p->pw_name, pt[i].pw_name) == 0);
129 for (i = 0; !PWD_ISLAST (&pt[i]); ++i)
132 TEST_VERIFY (p != NULL);
135 TEST_VERIFY (strcmp (p->pw_name, pt[i].pw_name) == 0);
136 TEST_VERIFY (p->pw_uid == pt[i].pw_uid);
141 for (i = 0; !HOST_ISLAST (&ht[i]); ++i)
143 h = gethostbyname (ht[i].h_name);
144 TEST_VERIFY (h != NULL);
147 TEST_VERIFY (strcmp (h->h_name, ht[i].h_name) == 0);
148 TEST_VERIFY (h->h_addr_list[0] != NULL);
149 if (h->h_addr_list[0])
150 TEST_VERIFY (strcmp (h->h_addr_list[0], ht[i].h_addr_list[0]) == 0);
154 for (i = 0; !HOST_ISLAST (&ht[i]); ++i)
156 struct hostent r, *rp;
157 char buf[TESTBUFLEN];
160 res = gethostbyname2_r (ht[i].h_name, AF_INET,
161 &r, buf, TESTBUFLEN, &rp, &herrno);
162 TEST_VERIFY (res == 0);
165 TEST_VERIFY (strcmp (r.h_name, ht[i].h_name) == 0);
166 TEST_VERIFY (r.h_addr_list[0] != NULL);
167 if (r.h_addr_list[0])
168 TEST_VERIFY (strcmp (r.h_addr_list[0], ht[i].h_addr_list[0]) == 0);
172 for (i = 0; !HOST_ISLAST (&ht[i]); ++i)
174 h = gethostbyaddr (ht[i].h_addr, 4, AF_INET);
175 TEST_VERIFY (h != NULL);
178 TEST_VERIFY (strcmp (h->h_name, ht[i].h_name) == 0);
179 TEST_VERIFY (h->h_addr_list[0] != NULL);
180 if (h->h_addr_list[0])
181 TEST_VERIFY (strcmp (h->h_addr_list[0], ht[i].h_addr_list[0]) == 0);
187 for (i = 0; !HOST_ISLAST (&ht[i]); ++i)
190 struct addrinfo hint;
193 memset (&hint, 0, sizeof (hint));
194 hint.ai_family = AF_INET;
195 hint.ai_socktype = SOCK_STREAM;
196 hint.ai_protocol = 0;
200 res = getaddrinfo (ht[i].h_name, NULL, &hint, &ap);
201 TEST_VERIFY (res == 0);
202 TEST_VERIFY (ap != NULL);
203 if (res == 0 && ap != NULL)
205 j = 0; /* which address in the list */
208 struct sockaddr_in *in = (struct sockaddr_in *)ap->ai_addr;
209 unsigned char *up = (unsigned char *)&in->sin_addr;
211 TEST_VERIFY (memcmp (up, ht[i].h_addr_list[j], 4) == 0);
221 for (i = 0; !HOST_ISLAST (&ht[i]); ++i)
223 struct sockaddr_in addr;
225 char host_buf[NI_MAXHOST];
227 memset (&addr, 0, sizeof (addr));
228 addr.sin_family = AF_INET;
230 memcpy (& addr.sin_addr, ht[i].h_addr_list[0], 4);
232 res = getnameinfo ((struct sockaddr *) &addr, sizeof(addr),
233 host_buf, sizeof(host_buf),
236 TEST_VERIFY (res == 0);
238 TEST_VERIFY (strcmp (ht[i].h_name, host_buf) == 0);
240 printf ("error %s\n", gai_strerror (res));
249 must_be_tests (pwd_table_1, host_table_1);
250 p = getpwnam("name5");
251 TEST_VERIFY (p == NULL);
259 must_be_tests (pwd_table_2, host_table_2);
260 p = getpwnam("name100");
261 TEST_VERIFY (p == NULL);
265 xrename (const char *a, const char *b)
267 int i = rename (a, b);
269 FAIL_EXIT1 ("rename(%s,%s) failed: %s\n", a, b, strerror(errno));
272 /* If the actions change while in the midst of doing a series of
273 lookups, make sure they're consistent. */
275 test_cross_switch_consistency (void)
280 /* We start by initiating a set/get/end loop on conf1. */
282 for (i = 0; !PWD_ISLAST (&pwd_table_1[i]); ++i)
285 TEST_VERIFY (p != NULL);
288 TEST_VERIFY (strcmp (p->pw_name, pwd_table_1[i].pw_name) == 0);
289 TEST_VERIFY (p->pw_uid == pwd_table_1[i].pw_uid);
292 /* After the first lookup, switch to conf2 and verify */
295 xrename ("/etc/nsswitch.conf", "/etc/nsswitch.conf1");
296 xrename ("/etc/nsswitch.conf2", "/etc/nsswitch.conf");
298 p = getpwnam (pwd_table_2[0].pw_name);
299 TEST_VERIFY (p->pw_uid == pwd_table_2[0].pw_uid);
302 /* But the original loop should still be on conf1. */
306 /* Make sure the set/get/end loop sees conf2 now. */
308 for (i = 0; !PWD_ISLAST (&pwd_table_2[i]); ++i)
311 TEST_VERIFY (p != NULL);
314 TEST_VERIFY (strcmp (p->pw_name, pwd_table_2[i].pw_name) == 0);
315 TEST_VERIFY (p->pw_uid == pwd_table_2[i].pw_uid);
325 /* The test1 module was configured at program start. */
328 xrename ("/etc/nsswitch.conf", "/etc/nsswitch.conf1");
329 xrename ("/etc/nsswitch.conf2", "/etc/nsswitch.conf");
332 xrename ("/etc/nsswitch.conf", "/etc/nsswitch.conf2");
333 xrename ("/etc/nsswitch.conf1", "/etc/nsswitch.conf");
336 test_cross_switch_consistency ();
341 #include <support/test-driver.c>