Use warn(3). Hardcode progname instead of using argv[0]. Use Pa for file

name.

libexec/revnetgroup/hash.c

@@ -28,20 +28,19 @@
  * 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.
- *
- *	$Id$
  */
 
+#ifndef lint
+static const char rcsid[] =
+	"$Id$";
+#endif /* not lint */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
 #include "hash.h"
 
-#ifndef lint
-static const char rcsid[] = "$Id$";
-#endif
-
 /*
  * This hash function is stolen directly from the
  * Berkeley DB package. It already exists inside libc, but

libexec/revnetgroup/parse_netgroup.c

@@ -34,9 +34,10 @@
  * SUCH DAMAGE.
  */
 
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "$Id$";
-#endif /* LIBC_SCCS and not lint */
+#ifndef lint
+static const char rcsid[] =
+	"$Id$";
+#endif /* not lint */
 
 /*
  * This is a specially hacked-up version of getnetgrent.c used to parse
@@ -51,10 +52,6 @@ static char sccsid[] = "$Id$";
 #include <unistd.h>
 #include "hash.h"
 
-#ifndef lint
-static const char rcsid[] = "$Id$";
-#endif
-
 /*
  * Static Variables and functions used by setnetgrent(), getnetgrent() and
  * __endnetgrent().
@@ -211,7 +208,7 @@ parse_netgrp(group)
 		 * spewing it out from inside libc can actually hose
 		 * certain programs.
 		 */
-		fprintf(stderr, "Cycle in netgroup %s\n", lp->l_groupname);
+		warnx("cycle in netgroup %s", lp->l_groupname);
 #endif
 		return (1);
 	} else
@@ -265,7 +262,7 @@ parse_netgrp(group)
 			 * stay silent by default for compatibility's sake.
 			 */
 			if (fields < 3)
-					fprintf(stderr, "Bad entry (%s%s%s%s%s) in netgroup \"%s\"\n",
+					warnx("bad entry (%s%s%s%s%s) in netgroup \"%s\"",
 						grp->ng_str[NG_HOST] == NULL ? "" : grp->ng_str[NG_HOST],
 						grp->ng_str[NG_USER] == NULL ? "" : ",",
 						grp->ng_str[NG_USER] == NULL ? "" : grp->ng_str[NG_USER],

libexec/revnetgroup/revnetgroup.8

@@ -28,7 +28,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$Id$
+.\"	$Id: revnetgroup.8,v 1.4 1997/02/22 14:22:03 peter Exp $
 .\"
 .Dd October 24, 1995
 .Dt REVNETGROUP 8
@@ -39,10 +39,12 @@
 .Sh SYNOPSIS
 .Nm revnetgroup
 .Fl u
+.Op Fl f Ar netgroup_file
+.Nm revnetgroup
 .Fl h
 .Op Fl f Ar netgroup_file
 .Sh DESCRIPTION
-.Nm revnetgroup
+.Nm Revnetgroup
 processes the contents of a file in
 .Xr netgroup 5
 format into what is called
@@ -51,23 +53,24 @@ form. That is, where the original file shows
 netgroup memberships in terms of which members reside in a particular
 group, the reverse netgroup format specifies what groups are associated
 with a particular member. This information is used to generate the
-.Nm netgroup.byuser
+.Pa netgroup.byuser
 and
-.Nm netgroup.byhosts
-NIS maps. These reverse netgroup maps are used to help speed up
+.Pa netgroup.byhosts
+.Tn NIS
+maps. These reverse netgroup maps are used to help speed up
 netgroup lookups, particularly for the
 .Fn innetgr
 library function.
 .Pp
 For example, the standard
-.Nm /etc/netgroup
+.Pa /etc/netgroup
 file may list a netgroup and a list of its members. Here, the
 netgroup is considered the
-.Pa key
+.Em key
 and the member names are the
-.Pa data .
+.Em data .
 By contrast, the reverse
-.Nm netgroup.byusers
+.Pa netgroup.byusers
 database lists each unique
 member as the key and the netgroups to which the members belong become
 the data. Seperate databases are created to hold information pertaining
@@ -75,7 +78,8 @@ to users and hosts; this allows netgroup username lookups
 and netgroup hostname lookups to be performed using independent keyspaces.
 .Pp
 By constructing these reverse netgroup databases (and the corresponding
-NIS maps) in advance, the
+.Tn NIS
+maps) in advance, the
 .Xr getnetgrent 3
 library functions are spared from having to work out the dependencies
 themselves on the fly. This is important on networks with large numbers
@@ -83,22 +87,28 @@ of users and hosts, since it can take a considerable amount of time
 to process very large netgroup databases.
 .Pp
 The
-.Nm revnetgroup
+.Nm
 command prints its results on the standard output. It is usually called
 only by
-.Nm /var/yp/Makefile
-when rebuilding the NIS netgroup maps.
+.Pa /var/yp/Makefile
+when rebuilding the
+.Tn NIS
+netgroup maps.
 .Pp
 .Sh OPTIONS
 The
-.Nm revnetgroup
+.Nm
 command supports the following options:
-.Bl -tag -width flag
+.Bl -tag -width indent
 .It Fl u
-Generate netgroup.byuser output; only username information in the
+Generate
+.Pa netgroup.byuser
+output; only username information in the
 original netgroup file is processed.
 .It Fl h
-Generate netgroup.byhost output; only hostname information in the
+Generate
+.Pa netgroup.byhost
+output; only hostname information in the
 original netgroup file is processed. (Note at least one of the
 .Fl u
 or
@@ -106,27 +116,31 @@ or
 flags must be specified.)
 .It Op Fl f Ar netgroup_file
 The
-.Nm revnetgroup
+.Nm
 command uses
-.Nm /etc/netgroup
+.Pa /etc/netgroup
 as its default input file. The
 .Fl f
 flag allows the user to specify an alternate input file. Specifying ``-''
 as the input file causes
-.Nm revnetgroup
+.Nm
 to read from the standard input.
 .El
 .Sh FILES
-.Bl -tag -width Pa -compact
+.Bl -tag -width /var/yp/Makefile -compact
 .It Pa /var/yp/Makefile
-The Makefile that calls
+the Makefile that calls
 .Nm yp_mkdb
 and
 .Nm revnetgroup
-to build the NIS databases.
+to build the
+.Tn NIS
+databases
 .It Pa /etc/netgroup
-The default netgroup database file. This file is most often found
-only on the NIS master server.
+the default netgroup database file. This file is most often found
+only on the
+.Tn NIS
+master server
 .El
 .Sh SEE ALSO
 .Xr getnetgrent 3 ,
@@ -134,4 +148,4 @@ only on the NIS master server.
 .Xr netgroup 5 ,
 .Xr yp_mkdb 8
 .Sh AUTHOR
-Bill Paul <wpaul@ctr.columbia.edu>
+.An Bill Paul Aq wpaul@ctr.columbia.edu

libexec/revnetgroup/revnetgroup.c

@@ -34,21 +34,20 @@
  * Written by Bill Paul <wpaul@ctr.columbia.edu>
  * Center for Telecommunications Research
  * Columbia University, New York City
- *
- *	$Id: revnetgroup.c,v 1.7 1997/03/28 15:48:15 imp Exp $
  */
 
+#ifndef lint
+static const char rcsid[] =
+	"$Id$";
+#endif /* not lint */
+
+#include <err.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <errno.h>
-#include <err.h>
+#include <unistd.h>
 #include "hash.h"
 
-#ifndef lint
-static const char rcsid[] = "$Id: revnetgroup.c,v 1.7 1997/03/28 15:48:15 imp Exp $";
-#endif
-
 /* Default location of netgroup file. */
 char *netgroup = "/etc/netgroup";
 
@@ -61,15 +60,13 @@ struct group_entry *gtable[TABLESIZE];
  */
 struct member_entry *mtable[TABLESIZE];
 
-void usage(prog)
-char *prog;
+static void
+usage()
 {
-	fprintf (stderr,"usage: %s -u|-h [-f netgroup file]\n",prog);
+	fprintf (stderr,"usage: revnetgroup -u|-h [-f netgroup file]\n");
 	exit(1);
 }
 
-extern char *optarg;
-
 int
 main(argc, argv)
 	int argc;
@@ -85,21 +82,21 @@ main(argc, argv)
 	int hosts = -1, i;
 
 	if (argc < 2)
-		usage(argv[0]);
+		usage();
 
 	while ((ch = getopt(argc, argv, "uhf:")) != -1) {
 		switch(ch) {
 		case 'u':
 			if (hosts != -1) {
 				warnx("please use only one of -u or -h");
-				usage(argv[0]);
+				usage();
 			}
 			hosts = 0;
 			break;
 		case 'h':
 			if (hosts != -1) {
 				warnx("please use only one of -u or -h");
-				usage(argv[0]);
+				usage();
 			}
 			hosts = 1;
 			break;
@@ -107,13 +104,13 @@ main(argc, argv)
 			netgroup = optarg;
 			break;
 		default:
-			usage(argv[0]);
+			usage();
 			break;
 		}
 	}
 
 	if (hosts == -1)
-		usage(argv[0]);
+		usage();
 
 	if (strcmp(netgroup, "-")) {
 		if ((fp = fopen(netgroup, "r")) == NULL) {