]> Zhao Yanbai Git Server - minix.git/commitdiff
Import NetBSD getent(1) 15/3415/1
authorDavid van Moolenbroek <david@minix3.org>
Thu, 9 Mar 2017 18:58:26 +0000 (18:58 +0000)
committerDavid van Moolenbroek <david@minix3.org>
Thu, 9 Mar 2017 19:04:33 +0000 (20:04 +0100)
Disable RPC support for now.

Change-Id: I5ccb435220bf20cd9089cdd7aacb7d126f62f119

distrib/sets/lists/minix-base/mi
distrib/sets/lists/minix-debug/mi
distrib/sets/lists/minix-man/mi
usr.bin/Makefile
usr.bin/getent/Makefile [new file with mode: 0644]
usr.bin/getent/getent.1 [new file with mode: 0644]
usr.bin/getent/getent.c [new file with mode: 0644]

index d99fbcaf33014515e301667c1113bee369cdef1d..e2ee8526a59b32f1c468f886197c77f4c6577c98 100644 (file)
 ./usr/bin/gcov-pull                                     minix-base
 ./usr/bin/genassym                                      minix-base
 ./usr/bin/gencat                                        minix-base
+./usr/bin/getcap                                        minix-base
+./usr/bin/getent                                        minix-base
 ./usr/bin/getopt                                        minix-base
 ./usr/bin/grep                                          minix-base
 ./usr/bin/groups                                        minix-base
index 632d0911891fe2b7cfb9bad4d16fabf3ed5655a8..18baf7ae5c1fdb7e791f0e327031ee57acd807fd 100644 (file)
 ./usr/libdata/debug/usr/bin/gcov.debug                  minix-debug     gcc=5,gcccmds,debug
 ./usr/libdata/debug/usr/bin/gcpp.debug                  minix-debug     gcc=5,gcccmds,debug
 ./usr/libdata/debug/usr/bin/gencat.debug                minix-debug     debug
+./usr/libdata/debug/usr/bin/getent.debug                minix-debug     debug
 ./usr/libdata/debug/usr/bin/getopt.debug                minix-debug     debug
 ./usr/libdata/debug/usr/bin/gprof.debug                 minix-debug     debug
 ./usr/libdata/debug/usr/bin/grep.debug                  minix-debug     debug
index 9e9b08236fcb2fd29cba37167256502f48e71c78..9c80534dbca2c8924e778d842a35835337db1be5 100644 (file)
 ./usr/man/man1/ftp.1                                    minix-man
 ./usr/man/man1/genassym.1                               minix-man
 ./usr/man/man1/gencat.1                                 minix-man
+./usr/man/man1/getcap.1                                 minix-man
+./usr/man/man1/getent.1                                 minix-man
 ./usr/man/man1/getopt.1                                 minix-man
 ./usr/man/man1/getopts.1                                minix-man       obsolete
 ./usr/man/man1/gprof.1                                  minix-man       binutils
index e9528ee531c55899ca602dc8838c82c8babe83a9..2cd2ad802361273863b73ad5cedbd0cd689607f7 100644 (file)
@@ -11,7 +11,7 @@ SUBDIR= asa \
        deroff dirname du \
        env expand \
        false find finger flock fold fmt fpr from \
-       fsplit ftp genassym gencat \
+       fsplit ftp genassym gencat getent \
        getopt \
        head hexdump id indent infocmp ipcrm ipcs join jot \
        lam last ldd leave \
diff --git a/usr.bin/getent/Makefile b/usr.bin/getent/Makefile
new file mode 100644 (file)
index 0000000..3daefac
--- /dev/null
@@ -0,0 +1,9 @@
+#      $NetBSD: Makefile,v 1.5 2011/10/11 19:25:07 christos Exp $
+
+USE_FORT?= yes # XXX network client?
+
+PROG=  getent
+LINKS=  ${BINDIR}/getent ${BINDIR}/getcap
+MLINKS=        getent.1 getcap.1
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/getent/getent.1 b/usr.bin/getent/getent.1
new file mode 100644 (file)
index 0000000..0e07058
--- /dev/null
@@ -0,0 +1,145 @@
+.\"    $NetBSD: getent.1,v 1.23 2011/10/11 20:39:40 wiz Exp $
+.\"
+.\" Copyright (c) 2004 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Luke Mewburn.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd October 11, 2011
+.Dt GETENT 1
+.Os
+.Sh NAME
+.Nm getent
+.Nd get entries from administrative databases
+.Sh SYNOPSIS
+.Nm getent
+.Ar database
+.Op Ar key ...
+.Nm getcap
+.Ar database
+.Op Ar key ...
+.Sh DESCRIPTION
+The
+.Nm
+program retrieves and displays entries from the administrative
+database specified by
+.Ar database ,
+using the lookup order specified in
+.Xr nsswitch.conf 5 .
+The display format for a given
+.Ar database
+is as per the
+.Dq traditional
+file format for that database.
+.Pp
+.Ar database
+may be one of:
+.Bl -column "protocols" "user:passwd:uid:gid:gecos:home_dir:shell" -offset indent -compact
+.It Sy Database Ta Sy Display format
+.It disktab Ta entry
+.It ethers Ta address name
+.It gettytab Ta entry
+.It group Ta group:passwd:gid:[member[,member]...]
+.It hosts Ta address name [alias ...]
+.It netgroup Ta (host,user,domain) [...]
+.It networks Ta name network [alias ...]
+.It passwd Ta user:passwd:uid:gid:gecos:home_dir:shell
+.It printcap Ta entry
+.It protocols Ta name protocol [alias ...]
+.It rpc Ta name number [alias ...]
+.It services Ta name port/protocol [alias ...]
+.It shells Ta /path/to/shell
+.El
+.Pp
+If one or more
+.Ar key
+arguments are provided, they will be looked up in
+.Ar database
+using the appropriate function.
+For example,
+.Sy passwd
+supports a numeric UID or user name;
+.Sy hosts
+supports an IPv4 address, IPv6 address, or host name;
+and
+.Sy services
+supports a service name, service name/protocol name, numeric port, or
+numeric port/protocol name.
+.Pp
+If no
+.Ar key
+is provided and
+.Ar database
+supports enumeration, all entries for
+.Ar database
+will be retrieved using the appropriate enumeration function and printed.
+.Pp
+For
+.Xr cgetcap 3
+style databases
+.Sy ( disktab ,
+.Sy printcap )
+specifying a key, lists the entry for that key, and specifying more arguments
+after the key are used as fields in that key, and only the values of the keys
+are returned.
+For boolean keys
+.Dv true
+is returned if the key is found.
+If a key is not found, then
+.Dv false
+is always
+returned.
+.Sh DIAGNOSTICS
+.Nm
+exits 0 on success,
+1 if there was an error in the command syntax,
+2 if one of the specified key names was not found in
+.Ar database ,
+or 3 if there is no support for enumeration on
+.Ar database .
+.Sh SEE ALSO
+.Xr cgetcap 3 ,
+.Xr disktab 5 ,
+.Xr ethers 5 ,
+.Xr gettytab 5 ,
+.Xr group 5 ,
+.Xr hosts 5 ,
+.Xr networks 5 ,
+.Xr nsswitch.conf 5 ,
+.Xr passwd 5 ,
+.Xr printcap 5 ,
+.Xr protocols 5 ,
+.Xr rpc 5 ,
+.Xr services 5 ,
+.Xr shells 5
+.Sh HISTORY
+A
+.Nm
+command appeared in
+.Nx 3.0 .
+It was based on the command of the same name in
+.Tn Solaris
+and
+.Tn Linux .
diff --git a/usr.bin/getent/getent.c b/usr.bin/getent/getent.c
new file mode 100644 (file)
index 0000000..bb0d80f
--- /dev/null
@@ -0,0 +1,860 @@
+/*     $NetBSD: getent.c,v 1.19 2012/03/15 02:02:23 joerg Exp $        */
+
+/*-
+ * Copyright (c) 2004-2006 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Luke Mewburn.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__RCSID("$NetBSD: getent.c,v 1.19 2012/03/15 02:02:23 joerg Exp $");
+#endif /* not lint */
+
+#include <sys/socket.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <grp.h>
+#include <limits.h>
+#include <netdb.h>
+#include <netgroup.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <paths.h>
+#include <err.h>
+
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+
+#include <net/if.h>
+#include <net/if_ether.h>
+
+#include <netinet/in.h>                /* for INET6_ADDRSTRLEN */
+
+#if !defined(__minix)
+#include <rpc/rpcent.h>
+#endif /* !defined(__minix) */
+
+#include <disktab.h>
+
+static int     usage(void) __attribute__((__noreturn__));
+static int     parsenum(const char *, unsigned long *);
+static int     disktab(int, char *[]);
+static int     gettytab(int, char *[]);
+static int     ethers(int, char *[]);
+static int     group(int, char *[]);
+static int     hosts(int, char *[]);
+static int     netgroup(int, char *[]);
+static int     networks(int, char *[]);
+static int     passwd(int, char *[]);
+static int     printcap(int, char *[]);
+static int     protocols(int, char *[]);
+#if !defined(__minix)
+static int     rpc(int, char *[]);
+#endif /* !defined(__minix) */
+static int     services(int, char *[]);
+static int     shells(int, char *[]);
+
+enum {
+       RV_OK           = 0,
+       RV_USAGE        = 1,
+       RV_NOTFOUND     = 2,
+       RV_NOENUM       = 3
+};
+
+static struct getentdb {
+       const char      *name;
+       int             (*callback)(int, char *[]);
+} databases[] = {
+       {       "disktab",      disktab,        },
+       {       "ethers",       ethers,         },
+       {       "gettytab",     gettytab,       },
+       {       "group",        group,          },
+       {       "hosts",        hosts,          },
+       {       "netgroup",     netgroup,       },
+       {       "networks",     networks,       },
+       {       "passwd",       passwd,         },
+       {       "printcap",     printcap,       },
+       {       "protocols",    protocols,      },
+#if !defined(__minix)
+       {       "rpc",          rpc,            },
+#endif /* !defined(__minix) */
+       {       "services",     services,       },
+       {       "shells",       shells,         },
+
+       {       NULL,           NULL,           },
+};
+
+
+int
+main(int argc, char *argv[])
+{
+       struct getentdb *curdb;
+
+       setprogname(argv[0]);
+
+       if (argc < 2)
+               usage();
+       for (curdb = databases; curdb->name != NULL; curdb++)
+               if (strcmp(curdb->name, argv[1]) == 0)
+                       return (*curdb->callback)(argc, argv);
+
+       warn("Unknown database `%s'", argv[1]);
+       usage();
+       /* NOTREACHED */
+}
+
+static int
+usage(void)
+{
+       struct getentdb *curdb;
+       size_t i;
+
+       (void)fprintf(stderr, "Usage: %s database [key ...]\n",
+           getprogname());
+       (void)fprintf(stderr, "\tdatabase may be one of:");
+       for (i = 0, curdb = databases; curdb->name != NULL; curdb++, i++) {
+               if (i % 7 == 0)
+                       (void)fputs("\n\t\t", stderr);
+               (void)fprintf(stderr, "%s%s", i % 7 == 0 ? "" : " ",
+                   curdb->name);
+       }
+       (void)fprintf(stderr, "\n");
+       exit(RV_USAGE);
+       /* NOTREACHED */
+}
+
+static int
+parsenum(const char *word, unsigned long *result)
+{
+       unsigned long   num;
+       char            *ep;
+
+       assert(word != NULL);
+       assert(result != NULL);
+
+       if (!isdigit((unsigned char)word[0]))
+               return 0;
+       errno = 0;
+       num = strtoul(word, &ep, 10);
+       if (num == ULONG_MAX && errno == ERANGE)
+               return 0;
+       if (*ep != '\0')
+               return 0;
+       *result = num;
+       return 1;
+}
+
+/*
+ * printfmtstrings --
+ *     vprintf(format, ...),
+ *     then the aliases (beginning with prefix, separated by sep),
+ *     then a newline
+ */
+static __printflike(4, 5) void
+printfmtstrings(char *strings[], const char *prefix, const char *sep,
+    const char *fmt, ...)
+{
+       va_list         ap;
+       const char      *curpref;
+       size_t          i;
+
+       va_start(ap, fmt);
+       (void)vprintf(fmt, ap);
+       va_end(ap);
+
+       curpref = prefix;
+       for (i = 0; strings[i] != NULL; i++) {
+               (void)printf("%s%s", curpref, strings[i]);
+               curpref = sep;
+       }
+       (void)printf("\n");
+}
+
+
+               /*
+                * ethers
+                */
+
+static int
+ethers(int argc, char *argv[])
+{
+       char            hostname[MAXHOSTNAMELEN + 1], *hp;
+       struct ether_addr ea, *eap;
+       int             i, rv;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+#define ETHERSPRINT    (void)printf("%-17s  %s\n", ether_ntoa(eap), hp)
+
+       rv = RV_OK;
+       if (argc == 2) {
+               warnx("Enumeration not supported on ethers");
+               rv = RV_NOENUM;
+       } else {
+               for (i = 2; i < argc; i++) {
+                       if ((eap = ether_aton(argv[i])) == NULL) {
+                               eap = &ea;
+                               hp = argv[i];
+                               if (ether_hostton(hp, eap) != 0) {
+                                       rv = RV_NOTFOUND;
+                                       break;
+                               }
+                       } else {
+                               hp = hostname;
+                               if (ether_ntohost(hp, eap) != 0) {
+                                       rv = RV_NOTFOUND;
+                                       break;
+                               }
+                       }
+                       ETHERSPRINT;
+               }
+       }
+       return rv;
+}
+
+               /*
+                * group
+                */
+
+static int
+group(int argc, char *argv[])
+{
+       struct group    *gr;
+       unsigned long   id;
+       int             i, rv;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+#define GROUPPRINT     printfmtstrings(gr->gr_mem, ":", ",", "%s:%s:%u", \
+                           gr->gr_name, gr->gr_passwd, gr->gr_gid)
+
+       (void)setgroupent(1);
+       rv = RV_OK;
+       if (argc == 2) {
+               while ((gr = getgrent()) != NULL)
+                       GROUPPRINT;
+       } else {
+               for (i = 2; i < argc; i++) {
+                       if (parsenum(argv[i], &id))
+                               gr = getgrgid((gid_t)id);
+                       else
+                               gr = getgrnam(argv[i]);
+                       if (gr != NULL)
+                               GROUPPRINT;
+                       else {
+                               rv = RV_NOTFOUND;
+                               break;
+                       }
+               }
+       }
+       endgrent();
+       return rv;
+}
+
+
+               /*
+                * hosts
+                */
+
+static void
+hostsprint(const struct hostent *he)
+{
+       char    buf[INET6_ADDRSTRLEN];
+
+       assert(he != NULL);
+       if (inet_ntop(he->h_addrtype, he->h_addr, buf, sizeof(buf)) == NULL)
+               (void)strlcpy(buf, "# unknown", sizeof(buf));
+       printfmtstrings(he->h_aliases, "  ", " ", "%-16s  %s", buf, he->h_name);
+}
+
+static int
+hosts(int argc, char *argv[])
+{
+       struct hostent  *he;
+       char            addr[IN6ADDRSZ];
+       int             i, rv;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+       sethostent(1);
+       rv = RV_OK;
+       if (argc == 2) {
+               while ((he = gethostent()) != NULL)
+                       hostsprint(he);
+       } else {
+               for (i = 2; i < argc; i++) {
+                       if (inet_pton(AF_INET6, argv[i], (void *)addr) > 0)
+                               he = gethostbyaddr(addr, IN6ADDRSZ, AF_INET6);
+                       else if (inet_pton(AF_INET, argv[i], (void *)addr) > 0)
+                               he = gethostbyaddr(addr, INADDRSZ, AF_INET);
+                       else
+                               he = gethostbyname(argv[i]);
+                       if (he != NULL)
+                               hostsprint(he);
+                       else {
+                               rv = RV_NOTFOUND;
+                               break;
+                       }
+               }
+       }
+       endhostent();
+       return rv;
+}
+
+               /*
+                * netgroup
+                */
+static int
+netgroup(int argc, char *argv[])
+{
+       int             rv, i;
+       bool            first;
+       const char      *host, *user, *domain;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+#define NETGROUPPRINT(s)       (((s) != NULL) ? (s) : "")
+
+       rv = RV_OK;
+       if (argc == 2) {
+               warnx("Enumeration not supported on netgroup");
+               rv = RV_NOENUM;
+       } else {
+               for (i = 2; i < argc; i++) {
+                       setnetgrent(argv[i]);
+                       first = true;
+                       while (getnetgrent(&host, &user, &domain) != 0) {
+                               if (first) {
+                                       first = false;
+                                       (void)fputs(argv[i], stdout);
+                               }
+                               (void)printf(" (%s,%s,%s)",
+                                   NETGROUPPRINT(host),
+                                   NETGROUPPRINT(user),
+                                   NETGROUPPRINT(domain));
+                       }
+                       if (!first)
+                               (void)putchar('\n');
+                       endnetgrent();
+               }
+       }
+
+       return rv;
+}
+
+               /*
+                * networks
+                */
+
+static void
+networksprint(const struct netent *ne)
+{
+       char            buf[INET6_ADDRSTRLEN];
+       struct  in_addr ianet;
+
+       assert(ne != NULL);
+       ianet = inet_makeaddr(ne->n_net, 0);
+       if (inet_ntop(ne->n_addrtype, &ianet, buf, sizeof(buf)) == NULL)
+               (void)strlcpy(buf, "# unknown", sizeof(buf));
+       printfmtstrings(ne->n_aliases, "  ", " ", "%-16s  %s", ne->n_name, buf);
+}
+
+static int
+networks(int argc, char *argv[])
+{
+       struct netent   *ne;
+       in_addr_t       net;
+       int             i, rv;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+       setnetent(1);
+       rv = RV_OK;
+       if (argc == 2) {
+               while ((ne = getnetent()) != NULL)
+                       networksprint(ne);
+       } else {
+               for (i = 2; i < argc; i++) {
+                       net = inet_network(argv[i]);
+                       if (net != INADDR_NONE)
+                               ne = getnetbyaddr(net, AF_INET);
+                       else
+                               ne = getnetbyname(argv[i]);
+                       if (ne != NULL)
+                               networksprint(ne);
+                       else {
+                               rv = RV_NOTFOUND;
+                               break;
+                       }
+               }
+       }
+       endnetent();
+       return rv;
+}
+
+
+               /*
+                * passwd
+                */
+
+static int
+passwd(int argc, char *argv[])
+{
+       struct passwd   *pw;
+       unsigned long   id;
+       int             i, rv;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+#define PASSWDPRINT    (void)printf("%s:%s:%u:%u:%s:%s:%s\n", \
+                           pw->pw_name, pw->pw_passwd, pw->pw_uid, \
+                           pw->pw_gid, pw->pw_gecos, pw->pw_dir, pw->pw_shell)
+
+       (void)setpassent(1);
+       rv = RV_OK;
+       if (argc == 2) {
+               while ((pw = getpwent()) != NULL)
+                       PASSWDPRINT;
+       } else {
+               for (i = 2; i < argc; i++) {
+                       if (parsenum(argv[i], &id))
+                               pw = getpwuid((uid_t)id);
+                       else
+                               pw = getpwnam(argv[i]);
+                       if (pw != NULL)
+                               PASSWDPRINT;
+                       else {
+                               rv = RV_NOTFOUND;
+                               break;
+                       }
+               }
+       }
+       endpwent();
+       return rv;
+}
+
+static char *
+mygetent(const char * const * db_array, const char *name)
+{
+       char *buf = NULL;
+       int error;
+
+       switch (error = cgetent(&buf, db_array, name)) {
+       case -3:
+               warnx("tc= loop in record `%s' in `%s'", name, db_array[0]);
+               break;
+       case -2:
+               warn("system error fetching record `%s' in `%s'", name,
+                   db_array[0]);
+               break;
+       case -1:
+       case 0:
+               break;
+       case 1:
+               warnx("tc= reference not found in record for `%s' in `%s'",
+                   name, db_array[0]);
+               break;
+       default:
+               warnx("unknown error %d in record `%s' in `%s'", error, name,
+                   db_array[0]);
+               break;
+       }
+       return buf;
+}
+
+static char *
+mygetone(const char * const * db_array, int first)
+{
+       char *buf = NULL;
+       int error;
+
+       switch (error = (first ? cgetfirst : cgetnext)(&buf, db_array)) {
+       case -2:
+               warnx("tc= loop in `%s'", db_array[0]);
+               break;
+       case -1:
+               warn("system error fetching record in `%s'", db_array[0]);
+               break;
+       case 0:
+       case 1:
+               break;
+       case 2:
+               warnx("tc= reference not found in `%s'", db_array[0]);
+               break;
+       default:
+               warnx("unknown error %d in `%s'", error, db_array[0]);
+               break;
+       }
+       return buf;
+}
+
+static void
+capprint(const char *cap)
+{
+       char *c = strchr(cap, ':');
+       if (c)
+               if (c == cap)
+                       (void)printf("true\n");
+               else {
+                       int l = (int)(c - cap);
+                       (void)printf("%*.*s\n", l, l, cap);
+               }
+       else
+               (void)printf("%s\n", cap);
+}
+
+static void
+prettyprint(char *b)
+{
+#define TERMWIDTH 65
+       int did = 0;
+       size_t len;
+       char *s, c;
+
+       for (;;) {
+               len = strlen(b);
+               if (len <= TERMWIDTH) {
+done:
+                       if (did)
+                               printf("\t:");
+                       printf("%s\n", b);
+                       return;
+               }
+               for (s = b + TERMWIDTH; s > b && *s != ':'; s--)
+                       continue;
+               if (*s++ != ':')
+                       goto done;
+               c = *s;
+               *s = '\0';
+               if (did)
+                       printf("\t:");
+               did++;
+               printf("%s\\\n", b);
+               *s = c;
+               b = s;
+       }
+}
+
+static void
+handleone(const char * const *db_array, char *b, int recurse, int pretty,
+    int level)
+{
+       char *tc;
+
+       if (level && pretty)
+               printf("\n");
+       if (pretty)
+               prettyprint(b);
+       else
+               printf("%s\n", b);
+       if (!recurse || cgetstr(b, "tc", &tc) <= 0)
+               return;
+
+       b = mygetent(db_array, tc);
+       free(tc);
+
+       if (b == NULL)
+               return;
+
+       handleone(db_array, b, recurse, pretty, ++level);
+       free(b);
+}
+
+static int
+handlecap(const char *db, int argc, char *argv[])
+{
+       static const char sfx[] = "=#:";
+       const char *db_array[] = { db, NULL };
+       char    *b, *cap;
+       int     i, rv, c;
+       size_t  j;
+       int     expand = 1, recurse = 0, pretty = 0;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+       argc--;
+       argv++;
+       while ((c = getopt(argc, argv, "pnr")) != -1)
+               switch (c) {
+               case 'n':
+                       expand = 0;
+                       break;
+               case 'r':
+                       expand = 0;
+                       recurse = 1;
+                       break;
+               case 'p':
+                       pretty = 1;
+                       break;
+               default:
+                       usage();
+                       break;
+               }
+
+       argc -= optind;
+       argv += optind;
+       csetexpandtc(expand);
+       rv = RV_OK;
+       if (argc == 0) {
+               for (b = mygetone(db_array, 1); b; b = mygetone(db_array, 0)) {
+                       handleone(db_array, b, recurse, pretty, 0);
+                       free(b);
+               }
+       } else {
+               if ((b = mygetent(db_array, argv[0])) == NULL)
+                       return RV_NOTFOUND;
+               if (argc == 1)
+                       handleone(db_array, b, recurse, pretty, 0);
+               else {
+                       for (i = 2; i < argc; i++) {
+                               for (j = 0; j < sizeof(sfx) - 1; j++) {
+                                       cap = cgetcap(b, argv[i], sfx[j]);
+                                       if (cap) {
+                                               capprint(cap);
+                                               break;
+                                       } 
+                               }
+                               if (j == sizeof(sfx) - 1)
+                                       printf("false\n");
+                       }
+               }
+               free(b);
+       }
+       return rv;
+}
+
+               /*
+                * gettytab
+                */
+
+static int
+gettytab(int argc, char *argv[])
+{
+       return handlecap(_PATH_GETTYTAB, argc, argv);
+}
+
+               /*
+                * printcap
+                */
+
+static int
+printcap(int argc, char *argv[])
+{
+       return handlecap(_PATH_PRINTCAP, argc, argv);
+}
+
+               /*
+                * disktab
+                */
+
+static int
+disktab(int argc, char *argv[])
+{
+       return handlecap(_PATH_DISKTAB, argc, argv);
+}
+
+               /*
+                * protocols
+                */
+
+static int
+protocols(int argc, char *argv[])
+{
+       struct protoent *pe;
+       unsigned long   id;
+       int             i, rv;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+#define PROTOCOLSPRINT printfmtstrings(pe->p_aliases, "  ", " ", \
+                           "%-16s  %5d", pe->p_name, pe->p_proto)
+
+       setprotoent(1);
+       rv = RV_OK;
+       if (argc == 2) {
+               while ((pe = getprotoent()) != NULL)
+                       PROTOCOLSPRINT;
+       } else {
+               for (i = 2; i < argc; i++) {
+                       if (parsenum(argv[i], &id))
+                               pe = getprotobynumber((int)id);
+                       else
+                               pe = getprotobyname(argv[i]);
+                       if (pe != NULL)
+                               PROTOCOLSPRINT;
+                       else {
+                               rv = RV_NOTFOUND;
+                               break;
+                       }
+               }
+       }
+       endprotoent();
+       return rv;
+}
+
+#if !defined(__minix)
+               /*
+                * rpc
+                */
+
+static int
+rpc(int argc, char *argv[])
+{
+       struct rpcent   *re;
+       unsigned long   id;
+       int             i, rv;
+       
+       assert(argc > 1);
+       assert(argv != NULL);
+
+#define RPCPRINT       printfmtstrings(re->r_aliases, "  ", " ", \
+                               "%-16s  %6d", \
+                               re->r_name, re->r_number)
+
+       setrpcent(1);
+       rv = RV_OK;
+       if (argc == 2) {
+               while ((re = getrpcent()) != NULL)
+                       RPCPRINT;
+       } else {
+               for (i = 2; i < argc; i++) {
+                       if (parsenum(argv[i], &id))
+                               re = getrpcbynumber((int)id);
+                       else
+                               re = getrpcbyname(argv[i]);
+                       if (re != NULL)
+                               RPCPRINT;
+                       else {
+                               rv = RV_NOTFOUND;
+                               break;
+                       }
+               }
+       }
+       endrpcent();
+       return rv;
+}
+#endif /* !defined(__minix) */
+
+               /*
+                * services
+                */
+
+static int
+services(int argc, char *argv[])
+{
+       struct servent  *se;
+       unsigned long   id;
+       char            *proto;
+       int             i, rv;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+#define SERVICESPRINT  printfmtstrings(se->s_aliases, "  ", " ", \
+                           "%-16s  %5d/%s", \
+                           se->s_name, ntohs(se->s_port), se->s_proto)
+
+       setservent(1);
+       rv = RV_OK;
+       if (argc == 2) {
+               while ((se = getservent()) != NULL)
+                       SERVICESPRINT;
+       } else {
+               for (i = 2; i < argc; i++) {
+                       proto = strchr(argv[i], '/');
+                       if (proto != NULL)
+                               *proto++ = '\0';
+                       if (parsenum(argv[i], &id))
+                               se = getservbyport(htons(id), proto);
+                       else
+                               se = getservbyname(argv[i], proto);
+                       if (se != NULL)
+                               SERVICESPRINT;
+                       else {
+                               rv = RV_NOTFOUND;
+                               break;
+                       }
+               }
+       }
+       endservent();
+       return rv;
+}
+
+
+               /*
+                * shells
+                */
+
+static int
+shells(int argc, char *argv[])
+{
+       const char      *sh;
+       int             i, rv;
+
+       assert(argc > 1);
+       assert(argv != NULL);
+
+#define SHELLSPRINT    (void)printf("%s\n", sh)
+
+       setusershell();
+       rv = RV_OK;
+       if (argc == 2) {
+               while ((sh = getusershell()) != NULL)
+                       SHELLSPRINT;
+       } else {
+               for (i = 2; i < argc; i++) {
+                       setusershell();
+                       while ((sh = getusershell()) != NULL) {
+                               if (strcmp(sh, argv[i]) == 0) {
+                                       SHELLSPRINT;
+                                       break;
+                               }
+                       }
+                       if (sh == NULL) {
+                               rv = RV_NOTFOUND;
+                               break;
+                       }
+               }
+       }
+       endusershell();
+       return rv;
+}