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 void printfmtstrings(char **, const char *, const char *,
65 const char *fmt, ...) __printflike(4, 5);
66 static int ethers(int, char *[]);
67 static int group(int, char *[]);
68 static int hosts(int, char *[]);
69 static int networks(int, char *[]);
70 static int passwd(int, char *[]);
71 static int protocols(int, char *[]);
72 static int rpc(int, char *[]);
73 static int services(int, char *[]);
74 static int shells(int, char *[]);
83 static struct getentdb {
85 int (*callback)(int, char *[]);
87 { "ethers", ethers, },
90 { "networks", networks, },
91 { "passwd", passwd, },
92 { "protocols", protocols, },
94 { "services", services, },
95 { "shells", shells, },
101 main(int argc, char *argv[])
103 struct getentdb *curdb;
105 setprogname(argv[0]);
109 for (curdb = databases; curdb->name != NULL; curdb++) {
110 if (strcmp(curdb->name, argv[1]) == 0) {
111 exit(curdb->callback(argc, argv));
114 fprintf(stderr, "Unknown database: %s\n", argv[1]);
123 struct getentdb *curdb;
125 fprintf(stderr, "Usage: %s database [key ...]\n",
127 fprintf(stderr, " database may be one of:\n\t");
128 for (curdb = databases; curdb->name != NULL; curdb++) {
129 fprintf(stderr, " %s", curdb->name);
131 fprintf(stderr, "\n");
137 parsenum(const char *word, unsigned long *result)
142 assert(word != NULL);
143 assert(result != NULL);
145 if (!isdigit((unsigned char)word[0]))
148 num = strtoul(word, &ep, 10);
149 if (num == ULONG_MAX && errno == ERANGE)
159 * vprintf(format, ...),
160 * then the aliases (beginning with prefix, separated by sep),
164 printfmtstrings(char *strings[], const char *prefix, const char *sep,
165 const char *fmt, ...)
175 for (i = 0; strings[i] != NULL; i++) {
176 printf("%s%s", curpref, strings[i]);
187 ethers(int argc, char *argv[])
189 char hostname[MAXHOSTNAMELEN + 1], *hp;
190 struct ether_addr ea, *eap;
194 assert(argv != NULL);
196 #define ETHERSPRINT printf("%-17s %s\n", ether_ntoa(eap), hp)
200 fprintf(stderr, "Enumeration not supported on ethers\n");
203 for (i = 2; i < argc; i++) {
204 if ((eap = ether_aton(argv[i])) == NULL) {
207 if (ether_hostton(hp, eap) != 0) {
213 if (ether_ntohost(hp, eap) != 0) {
229 group(int argc, char *argv[])
236 assert(argv != NULL);
238 #define GROUPPRINT printfmtstrings(gr->gr_mem, ":", ",", "%s:%s:%u", \
239 gr->gr_name, gr->gr_passwd, gr->gr_gid)
244 while ((gr = getgrent()) != NULL)
247 for (i = 2; i < argc; i++) {
248 if (parsenum(argv[i], &id))
249 gr = getgrgid((gid_t)id);
251 gr = getgrnam(argv[i]);
270 hostsprint(const struct hostent *he)
272 char buf[INET6_ADDRSTRLEN];
275 if (inet_ntop(he->h_addrtype, he->h_addr, buf, sizeof(buf)) == NULL)
276 strlcpy(buf, "# unknown", sizeof(buf));
277 printfmtstrings(he->h_aliases, " ", " ", "%-16s %s", buf, he->h_name);
281 hosts(int argc, char *argv[])
284 char addr[IN6ADDRSZ];
288 assert(argv != NULL);
293 while ((he = gethostent()) != NULL)
296 for (i = 2; i < argc; i++) {
297 if (inet_pton(AF_INET6, argv[i], (void *)addr) > 0)
298 he = gethostbyaddr(addr, IN6ADDRSZ, AF_INET6);
299 else if (inet_pton(AF_INET, argv[i], (void *)addr) > 0)
300 he = gethostbyaddr(addr, INADDRSZ, AF_INET);
302 he = gethostbyname(argv[i]);
319 networksprint(const struct netent *ne)
321 char buf[INET6_ADDRSTRLEN];
322 struct in_addr ianet;
325 ianet = inet_makeaddr(ne->n_net, 0);
326 if (inet_ntop(ne->n_addrtype, &ianet, buf, sizeof(buf)) == NULL)
327 strlcpy(buf, "# unknown", sizeof(buf));
328 printfmtstrings(ne->n_aliases, " ", " ", "%-16s %s", ne->n_name, buf);
332 networks(int argc, char *argv[])
339 assert(argv != NULL);
344 while ((ne = getnetent()) != NULL)
347 for (i = 2; i < argc; i++) {
348 net = inet_network(argv[i]);
349 if (net != INADDR_NONE)
350 ne = getnetbyaddr(net, AF_INET);
352 ne = getnetbyname(argv[i]);
369 passwd(int argc, char *argv[])
376 assert(argv != NULL);
378 #define PASSWDPRINT printf("%s:%s:%u:%u:%s:%s:%s\n", \
379 pw->pw_name, pw->pw_passwd, pw->pw_uid, \
380 pw->pw_gid, pw->pw_gecos, pw->pw_dir, pw->pw_shell)
385 while ((pw = getpwent()) != NULL)
388 for (i = 2; i < argc; i++) {
389 if (parsenum(argv[i], &id))
390 pw = getpwuid((uid_t)id);
392 pw = getpwnam(argv[i]);
409 protocols(int argc, char *argv[])
416 assert(argv != NULL);
418 #define PROTOCOLSPRINT printfmtstrings(pe->p_aliases, " ", " ", \
419 "%-16s %5d", pe->p_name, pe->p_proto)
424 while ((pe = getprotoent()) != NULL)
427 for (i = 2; i < argc; i++) {
428 if (parsenum(argv[i], &id))
429 pe = getprotobynumber((int)id);
431 pe = getprotobyname(argv[i]);
448 rpc(int argc, char *argv[])
455 assert(argv != NULL);
457 #define RPCPRINT printfmtstrings(re->r_aliases, " ", " ", \
459 re->r_name, re->r_number)
464 while ((re = getrpcent()) != NULL)
467 for (i = 2; i < argc; i++) {
468 if (parsenum(argv[i], &id))
469 re = getrpcbynumber((int)id);
471 re = getrpcbyname(argv[i]);
488 services(int argc, char *argv[])
496 assert(argv != NULL);
498 #define SERVICESPRINT printfmtstrings(se->s_aliases, " ", " ", \
500 se->s_name, ntohs(se->s_port), se->s_proto)
505 while ((se = getservent()) != NULL)
508 for (i = 2; i < argc; i++) {
509 proto = strchr(argv[i], '/');
512 if (parsenum(argv[i], &id))
513 se = getservbyport(htons((u_short)id), proto);
515 se = getservbyname(argv[i], proto);
532 shells(int argc, char *argv[])
538 assert(argv != NULL);
540 #define SHELLSPRINT printf("%s\n", sh)
545 while ((sh = getusershell()) != NULL)
548 for (i = 2; i < argc; i++) {
550 while ((sh = getusershell()) != NULL) {
551 if (strcmp(sh, argv[i]) == 0) {