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From: Baptiste Daroussin <bapt@FreeBSD.org>
Date: Sat, 2 May 2015 12:22:25 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r282342 - head/usr.bin/col
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Author: bapt
Date: Sat May  2 12:22:24 2015
New Revision: 282342
URL: https://svnweb.freebsd.org/changeset/base/282342

Log:
  Capsicumize col(1)

Modified:
  head/usr.bin/col/col.c

Modified: head/usr.bin/col/col.c
==============================================================================
--- head/usr.bin/col/col.c	Sat May  2 12:19:24 2015	(r282341)
+++ head/usr.bin/col/col.c	Sat May  2 12:22:24 2015	(r282342)
@@ -45,11 +45,15 @@ static char sccsid[] = "@(#)col.c	8.5 (B
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
+#include <sys/capsicum.h>
+
 #include <err.h>
+#include <errno.h>
 #include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <termios.h>
 #include <unistd.h>
 #include <wchar.h>
 #include <wctype.h>
@@ -129,9 +133,24 @@ main(int argc, char **argv)
 	int this_line;			/* line l points to */
 	int nflushd_lines;		/* number of lines that were flushed */
 	int adjust, opt, warned, width;
+	cap_rights_t rights;
+	unsigned long cmd;
 
 	(void)setlocale(LC_CTYPE, "");
 
+	cap_rights_init(&rights, CAP_FSTAT, CAP_READ);
+	if (cap_rights_limit(STDIN_FILENO, &rights) < 0 && errno != ENOSYS)
+		err(1, "unable to limit rights for stdin");
+	cap_rights_init(&rights, CAP_FSTAT, CAP_WRITE, CAP_IOCTL);
+	if (cap_rights_limit(STDOUT_FILENO, &rights) < 0 && errno != ENOSYS)
+		err(1, "unable to limit rights for stdout");
+	cmd = TIOCGETA; /* required by isatty(3) in printf(3) */
+	if (cap_ioctls_limit(STDOUT_FILENO, &cmd, 1) < 0 && errno != ENOSYS)
+		err(1, "unable to limit ioctls for stdout");
+
+	if (cap_enter() < 0 && errno != ENOSYS)
+		err(1, "unable to enter capability mode");
+
 	max_bufd_lines = 128;
 	compress_spaces = 1;		/* compress spaces into tabs */
 	while ((opt = getopt(argc, argv, "bfhl:px")) != -1)