Author: cem
Date: Sun Jan 8 06:50:53 2017
New Revision: 311668
URL: https://svnweb.freebsd.org/changeset/base/311668
Log:
chmod: Add SIGINFO handler
PR: 191884
Submitted by: Dan McGregor <dan.mcgregor at usask.ca>
Reviewed by: mjg@ (earlier version)
Modified:
head/bin/chmod/chmod.1
head/bin/chmod/chmod.c
Modified: head/bin/chmod/chmod.1
==============================================================================
--- head/bin/chmod/chmod.1 Sun Jan 8 06:26:33 2017 (r311667)
+++ head/bin/chmod/chmod.1 Sun Jan 8 06:50:53 2017 (r311668)
@@ -32,7 +32,7 @@
.\" @(#)chmod.1 8.4 (Berkeley) 3/31/94
.\" $FreeBSD$
.\"
-.Dd April 20, 2015
+.Dd January 7, 2017
.Dt CHMOD 1
.Os
.Sh NAME
@@ -106,6 +106,16 @@ option is specified.
In addition, these options override each other and the
command's actions are determined by the last one specified.
.Pp
+If
+.Nm
+receives a
+.Dv SIGINFO
+signal (see the
+.Cm status
+argument for
+.Xr stty 1 ) ,
+then the current filename as well as the old and new modes are displayed.
+.Pp
Only the owner of a file or the super-user is permitted to change
the mode of a file.
.Sh EXIT STATUS
Modified: head/bin/chmod/chmod.c
==============================================================================
--- head/bin/chmod/chmod.c Sun Jan 8 06:26:33 2017 (r311667)
+++ head/bin/chmod/chmod.c Sun Jan 8 06:50:53 2017 (r311668)
@@ -49,14 +49,24 @@ __FBSDID("$FreeBSD$");
#include <fcntl.h>
#include <fts.h>
#include <limits.h>
+#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+static volatile sig_atomic_t siginfo;
+
static void usage(void);
static int may_have_nfs4acl(const FTSENT *ent, int hflag);
+static void
+siginfo_handler(int sig __unused)
+{
+
+ siginfo = 1;
+}
+
int
main(int argc, char *argv[])
{
@@ -125,6 +135,8 @@ done: argv += optind;
if (argc < 2)
usage();
+ (void)signal(SIGINFO, siginfo_handler);
+
if (Rflag) {
if (hflag)
errx(1, "the -R and -h options may not be "
@@ -192,10 +204,10 @@ done: argv += optind;
&& !fflag) {
warn("%s", p->fts_path);
rval = 1;
- } else if (vflag) {
+ } else if (vflag || siginfo) {
(void)printf("%s", p->fts_path);
- if (vflag > 1) {
+ if (vflag > 1 || siginfo) {
char m1[12], m2[12];
strmode(p->fts_statp->st_mode, m1);
@@ -207,6 +219,7 @@ done: argv += optind;
newmode, m2);
}
(void)printf("\n");
+ siginfo = 0;
}
}
if (errno)
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
