BSD 4.4 Lite Usr.bin Sources

3 files changed, 356 insertions, 0 deletions

diff --git a/usr.bin/cap_mkdb/Makefile b/usr.bin/cap_mkdb/Makefile
new file mode 100644
index 0000000..0e403af
--- /dev/null
+++ b/usr.bin/cap_mkdb/Makefile
@@ -0,0 +1,5 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	cap_mkdb
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/cap_mkdb/cap_mkdb.1 b/usr.bin/cap_mkdb/cap_mkdb.1
new file mode 100644
index 0000000..b2a3900
--- /dev/null
+++ b/usr.bin/cap_mkdb/cap_mkdb.1
@@ -0,0 +1,101 @@
+.\" Copyright (c) 1992, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" 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.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+.\"
+.\"	@(#)cap_mkdb.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd "June 6, 1993"
+.Dt CAP_MKDB 1
+.Os
+.Sh NAME
+.Nm cap_mkdb
+.Nd create capability database
+.Pp
+.Sh SYNOPSIS
+.Nm cap_mkdb
+.Op Fl v
+.Op Fl f Ar outfile
+.Ar file1
+.Op Ar file2 ...
+.Pp
+.Sh DESCRIPTION
+.Nm Cap_mkdb 
+builds a hashed database out of the
+.Xr getcap 3 
+logical database constructed by the concatenation of the specified
+files .
+.Pp
+The database is named by the basename of the first file argument and
+the string
+.Dq .db .  
+The
+.Xr getcap 3
+routines can access the database in this form much more quickly
+than they can the original text file(s).
+.Pp
+The ``tc'' capabilities of the records are expanded before the
+record is stored into the database.
+.Pp
+The options as as follows:
+.Bl -tag -width XXXXXX -indent
+.It Fl f Ar outfile
+Specify a different database basename.
+.It Fl v
+Print out the number of capability records in the database.
+.El
+.Pp
+.Sh FORMAT
+Each record is stored in the database using two different types of keys.
+.Pp
+The first type is a key which consists of the first capability of
+the record (not including the trailing colon (``:'')) with a data
+field consisting of a special byte followed by the rest of the record.
+The special byte is either a 0 or 1, where a 0 means that the record
+is okay, and a 1 means that there was a ``tc'' capability in the record
+that couldn't be expanded.
+.Pp
+The second type is a key which consists of one of the names from the
+first capability of the record with a data field consisting a special
+byte followed by the the first capability of the record.
+The special byte is a 2.
+.Pp
+In normal operation names are looked up in the database, resulting
+in a key/data pair of the second type.
+The data field of this key/data pair is used to look up a key/data
+pair of the first type which has the real data associated with the
+name.
+.Sh RETURN VALUE
+The
+.Nm cap_mkdb 
+utility exits 0 on success and >0 if an error occurs.
+.Sh SEE ALSO
+.Xr dbopen 3 ,
+.Xr getcap 3 ,
+.Xr termcap 5
diff --git a/usr.bin/cap_mkdb/cap_mkdb.c b/usr.bin/cap_mkdb/cap_mkdb.c
new file mode 100644
index 0000000..f809c86
--- /dev/null
+++ b/usr.bin/cap_mkdb/cap_mkdb.c
@@ -0,0 +1,250 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1992, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)cap_mkdb.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <db.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+void	 db_build __P((char **));
+void	 dounlink __P((void));
+void	 usage __P((void));
+
+DB *capdbp;
+int verbose;
+char *capdb, *capname, buf[8 * 1024];
+
+/*
+ * Mkcapdb creates a capability hash database for quick retrieval of capability
+ * records.  The database contains 2 types of entries: records and references
+ * marked by the first byte in the data.  A record entry contains the actual
+ * capability record whereas a reference contains the name (key) under which
+ * the correct record is stored.
+ */
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	int c;
+
+	capname = NULL;
+	while ((c = getopt(argc, argv, "f:v")) != EOF) {
+		switch(c) {
+		case 'f':
+			capname = optarg;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (*argv == NULL)
+		usage();
+
+	/*
+	 * The database file is the first argument if no name is specified.
+	 * Make arrangements to unlink it if exit badly.
+	 */
+	(void)snprintf(buf, sizeof(buf), "%s.db", capname ? capname : *argv);
+	if ((capname = strdup(buf)) == NULL)
+		err(1, "");
+	if ((capdbp = dbopen(capname,
+	    O_CREAT | O_TRUNC | O_RDWR, DEFFILEMODE, DB_HASH, NULL)) == NULL)
+		err(1, "%s", buf);
+
+	if (atexit(dounlink))
+		err(1, "atexit");
+
+	db_build(argv);
+
+	if (capdbp->close(capdbp) < 0)
+		err(1, "%s", capname);
+	capname = NULL;
+	exit(0);
+}
+
+void
+dounlink()
+{
+	if (capname != NULL)
+		(void)unlink(capname);
+}
+
+/*
+ * Any changes to these definitions should be made also in the getcap(3)
+ * library routines.
+ */
+#define RECOK	(char)0
+#define TCERR	(char)1
+#define SHADOW	(char)2
+
+/*
+ * Db_build() builds the name and capabilty databases according to the
+ * details above.
+ */
+void
+db_build(ifiles)
+	char **ifiles;
+{
+	DBT key, data;
+	recno_t reccnt;
+	size_t len, bplen;
+	int st;
+	char *bp, *p, *t;
+
+	data.data = NULL;
+	key.data = NULL;
+	for (reccnt = 0, bplen = 0; (st = cgetnext(&bp, ifiles)) > 0;) {
+
+		/*
+		 * Allocate enough memory to store record, terminating
+		 * NULL and one extra byte.
+		 */
+		len = strlen(bp);
+		if (bplen <= len + 2) {
+			bplen += MAX(256, len + 2);
+			if ((data.data = realloc(data.data, bplen)) == NULL)
+				err(1, "");
+		}
+
+		/* Find the end of the name field. */
+		if ((p = strchr(bp, ':')) == NULL) {
+			warnx("no name field: %.*s", MIN(len, 20), bp);
+			continue;
+		}
+
+		/* First byte of stored record indicates status. */
+		switch(st) {
+		case 1:
+			((char *)(data.data))[0] = RECOK;
+			break;
+		case 2:
+			((char *)(data.data))[0] = TCERR;
+			warnx("Record not tc expanded: %.*s", p - bp, bp);
+			break;
+		}
+
+		/* Create the stored record. */
+		memmove(&((u_char *)(data.data))[1], bp, len + 1);
+		data.size = len + 2;
+
+		/* Store the record under the name field. */
+		key.data = bp;
+		key.size = p - bp;
+
+		switch(capdbp->put(capdbp, &key, &data, R_NOOVERWRITE)) {
+		case -1:
+			err(1, "put");
+			/* NOTREACHED */
+		case 1:
+			warnx("ignored duplicate: %.*s",
+			    key.size, (char *)key.data);
+			continue;
+		}
+		++reccnt;
+
+		/* If only one name, ignore the rest. */
+		if ((p = strchr(bp, '|')) == NULL)
+			continue;
+
+		/* The rest of the names reference the entire name. */
+		((char *)(data.data))[0] = SHADOW;
+		memmove(&((u_char *)(data.data))[1], key.data, key.size);
+		data.size = key.size + 1;
+
+		/* Store references for other names. */
+		for (p = t = bp;; ++p) {
+			if (p > t && (*p == ':' || *p == '|')) {
+				key.size = p - t;
+				key.data = t;
+				switch(capdbp->put(capdbp,
+				    &key, &data, R_NOOVERWRITE)) {
+				case -1:
+					err(1, "put");
+					/* NOTREACHED */
+				case 1:
+					warnx("ignored duplicate: %.*s",
+					    key.size, (char *)key.data);
+				}
+				t = p + 1;
+			}
+			if (*p == ':')
+				break;
+		}
+	}
+
+	switch(st) {
+	case -1:
+		err(1, "file argument");
+		/* NOTREACHED */
+	case -2:
+		errx(1, "potential reference loop detected");
+		/* NOTREACHED */
+	}
+
+	if (verbose)
+		(void)printf("cap_mkdb: %d capability records\n", reccnt);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr,
+	    "usage: cap_mkdb [-v] [-f outfile] file1 [file2 ...]\n");
+	exit(1);
+}