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tr(1): Capsicumify

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This is a straightforward single input, single output program for
capsicum.

Reviewed by:	bapt
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D7928
This commit is contained in:
Conrad Meyer 2016-09-19 16:14:38 +00:00
parent e75a7302d3
commit 875cba632b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=305982
1 changed files with 26 additions and 0 deletions
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26
usr.bin/tr/tr.c
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@ -41,16 +41,19 @@ static const char copyright[] =
static const char sccsid[] = "@(#)tr.c 8.2 (Berkeley) 5/4/95";
#endif
#include <sys/capsicum.h>
#include <sys/types.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <locale.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include <wchar.h>
#include <wctype.h>
@ -69,6 +72,8 @@ int
main(int argc, char **argv)
{
static int carray[NCHARS_SB];
cap_rights_t rights;
unsigned long cmd;
struct cmap *map;
struct cset *delete, *squeeze;
int n, *p;
@ -77,6 +82,27 @@ main(int argc, char **argv)
(void)setlocale(LC_ALL, "");
cap_rights_init(&rights, CAP_FSTAT, CAP_IOCTL, 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_IOCTL, CAP_WRITE);
if (cap_rights_limit(STDOUT_FILENO, &rights) < 0 && errno != ENOSYS)
err(1, "unable to limit rights for stdout");
if (cap_rights_limit(STDERR_FILENO, &rights) < 0 && errno != ENOSYS)
err(1, "unable to limit rights for stderr");
/* Required for isatty(3). */
cmd = TIOCGETA;
if (cap_ioctls_limit(STDIN_FILENO, &cmd, 1) < 0 && errno != ENOSYS)
err(1, "unable to limit ioctls for stdin");
if (cap_ioctls_limit(STDOUT_FILENO, &cmd, 1) < 0 && errno != ENOSYS)
err(1, "unable to limit ioctls for stdout");
if (cap_ioctls_limit(STDERR_FILENO, &cmd, 1) < 0 && errno != ENOSYS)
err(1, "unable to limit ioctls for stderr");
if (cap_enter() < 0 && errno != ENOSYS)
err(1, "unable to enter capability mode");
Cflag = cflag = dflag = sflag = 0;
while ((ch = getopt(argc, argv, "Ccdsu")) != -1)
switch((char)ch) {