2 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * This code is derived from software contributed to The NetBSD Foundation
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the NetBSD
19 * Foundation, Inc. and its contributors.
20 * 4. Neither the name of The NetBSD Foundation nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
36 * $NetBSD: getent.c,v 1.7 2005/08/24 14:31:02 ginsbach Exp $
37 * $DragonFly: src/usr.bin/getent/getent.c,v 1.1 2007/12/04 18:13:09 dillon Exp $
40 #include <sys/socket.h>
41 #include <sys/param.h>
42 #include <arpa/inet.h>
43 #include <arpa/nameser.h>
45 #include <netinet/if_ether.h>
46 #include <netinet/in.h> /* for INET6_ADDRSTRLEN */
62 static int usage(void);
63 static int parsenum(const char *, unsigned long *);
64 static int ethers(int, char *[]);
65 static int group(int, char *[]);
66 static int hosts(int, char *[]);
67 static int networks(int, char *[]);
68 static int passwd(int, char *[]);
69 static int protocols(int, char *[]);
70 static int rpc(int, char *[]);
71 static int services(int, char *[]);
72 static int shells(int, char *[]);
81 static struct getentdb {
83 int (*callback)(int, char *[]);
85 { "ethers", ethers, },
88 { "networks", networks, },
89 { "passwd", passwd, },
90 { "protocols", protocols, },
92 { "services", services, },
93 { "shells", shells, },
99 main(int argc, char *argv[])
101 struct getentdb *curdb;
103 setprogname(argv[0]);
107 for (curdb = databases; curdb->name != NULL; curdb++) {
108 if (strcmp(curdb->name, argv[1]) == 0) {
109 exit(curdb->callback(argc, argv));
112 fprintf(stderr, "Unknown database: %s\n", argv[1]);
121 struct getentdb *curdb;
123 fprintf(stderr, "Usage: %s database [key ...]\n",
125 fprintf(stderr, " database may be one of:\n\t");
126 for (curdb = databases; curdb->name != NULL; curdb++) {
127 fprintf(stderr, " %s", curdb->name);
129 fprintf(stderr, "\n");
135 parsenum(const char *word, unsigned long *result)
140 assert(word != NULL);
141 assert(result != NULL);
143 if (!isdigit((unsigned char)word[0]))
146 num = strtoul(word, &ep, 10);
147 if (num == ULONG_MAX && errno == ERANGE)
157 * vprintf(format, ...),
158 * then the aliases (beginning with prefix, separated by sep),
162 printfmtstrings(char *strings[], const char *prefix, const char *sep,
163 const char *fmt, ...)
173 for (i = 0; strings[i] != NULL; i++) {
174 printf("%s%s", curpref, strings[i]);
185 ethers(int argc, char *argv[])
187 char hostname[MAXHOSTNAMELEN + 1], *hp;
188 struct ether_addr ea, *eap;
192 assert(argv != NULL);
194 #define ETHERSPRINT printf("%-17s %s\n", ether_ntoa(eap), hp)
198 fprintf(stderr, "Enumeration not supported on ethers\n");
201 for (i = 2; i < argc; i++) {
202 if ((eap = ether_aton(argv[i])) == NULL) {
205 if (ether_hostton(hp, eap) != 0) {
211 if (ether_ntohost(hp, eap) != 0) {
227 group(int argc, char *argv[])
234 assert(argv != NULL);
236 #define GROUPPRINT printfmtstrings(gr->gr_mem, ":", ",", "%s:%s:%u", \
237 gr->gr_name, gr->gr_passwd, gr->gr_gid)
242 while ((gr = getgrent()) != NULL)
245 for (i = 2; i < argc; i++) {
246 if (parsenum(argv[i], &id))
247 gr = getgrgid((gid_t)id);
249 gr = getgrnam(argv[i]);
268 hostsprint(const struct hostent *he)
270 char buf[INET6_ADDRSTRLEN];
273 if (inet_ntop(he->h_addrtype, he->h_addr, buf, sizeof(buf)) == NULL)
274 strlcpy(buf, "# unknown", sizeof(buf));
275 printfmtstrings(he->h_aliases, " ", " ", "%-16s %s", buf, he->h_name);
279 hosts(int argc, char *argv[])
282 char addr[IN6ADDRSZ];
286 assert(argv != NULL);
291 while ((he = gethostent()) != NULL)
294 for (i = 2; i < argc; i++) {
295 if (inet_pton(AF_INET6, argv[i], (void *)addr) > 0)
296 he = gethostbyaddr(addr, IN6ADDRSZ, AF_INET6);
297 else if (inet_pton(AF_INET, argv[i], (void *)addr) > 0)
298 he = gethostbyaddr(addr, INADDRSZ, AF_INET);
300 he = gethostbyname(argv[i]);
317 networksprint(const struct netent *ne)
319 char buf[INET6_ADDRSTRLEN];
320 struct in_addr ianet;
323 ianet = inet_makeaddr(ne->n_net, 0);
324 if (inet_ntop(ne->n_addrtype, &ianet, buf, sizeof(buf)) == NULL)
325 strlcpy(buf, "# unknown", sizeof(buf));
326 printfmtstrings(ne->n_aliases, " ", " ", "%-16s %s", ne->n_name, buf);
330 networks(int argc, char *argv[])
337 assert(argv != NULL);
342 while ((ne = getnetent()) != NULL)
345 for (i = 2; i < argc; i++) {
346 net = inet_network(argv[i]);
347 if (net != INADDR_NONE)
348 ne = getnetbyaddr(net, AF_INET);
350 ne = getnetbyname(argv[i]);
367 passwd(int argc, char *argv[])
374 assert(argv != NULL);
376 #define PASSWDPRINT printf("%s:%s:%u:%u:%s:%s:%s\n", \
377 pw->pw_name, pw->pw_passwd, pw->pw_uid, \
378 pw->pw_gid, pw->pw_gecos, pw->pw_dir, pw->pw_shell)
383 while ((pw = getpwent()) != NULL)
386 for (i = 2; i < argc; i++) {
387 if (parsenum(argv[i], &id))
388 pw = getpwuid((uid_t)id);
390 pw = getpwnam(argv[i]);
407 protocols(int argc, char *argv[])
414 assert(argv != NULL);
416 #define PROTOCOLSPRINT printfmtstrings(pe->p_aliases, " ", " ", \
417 "%-16s %5d", pe->p_name, pe->p_proto)
422 while ((pe = getprotoent()) != NULL)
425 for (i = 2; i < argc; i++) {
426 if (parsenum(argv[i], &id))
427 pe = getprotobynumber((int)id);
429 pe = getprotobyname(argv[i]);
446 rpc(int argc, char *argv[])
453 assert(argv != NULL);
455 #define RPCPRINT printfmtstrings(re->r_aliases, " ", " ", \
457 re->r_name, re->r_number)
462 while ((re = getrpcent()) != NULL)
465 for (i = 2; i < argc; i++) {
466 if (parsenum(argv[i], &id))
467 re = getrpcbynumber((int)id);
469 re = getrpcbyname(argv[i]);
486 services(int argc, char *argv[])
494 assert(argv != NULL);
496 #define SERVICESPRINT printfmtstrings(se->s_aliases, " ", " ", \
498 se->s_name, ntohs(se->s_port), se->s_proto)
503 while ((se = getservent()) != NULL)
506 for (i = 2; i < argc; i++) {
507 proto = strchr(argv[i], '/');
510 if (parsenum(argv[i], &id))
511 se = getservbyport(htons((u_short)id), proto);
513 se = getservbyname(argv[i], proto);
530 shells(int argc, char *argv[])
536 assert(argv != NULL);
538 #define SHELLSPRINT printf("%s\n", sh)
543 while ((sh = getusershell()) != NULL)
546 for (i = 2; i < argc; i++) {
548 while ((sh = getusershell()) != NULL) {
549 if (strcmp(sh, argv[i]) == 0) {