* NEWS, src/chsh.c, man/chsh.1.xml: Add --root option.

chsh's usage split in smaller messages.
	* src/chsh.c: The getopt index of long options is not used.

ChangeLog

@@ -39,6 +39,9 @@
 	* NEWS, src/groupmems.c, man/groupmems.8.xml: Add --root option.
 	Open syslog after the potential chroot.
 	* src/groupmems.c: The getopt index of long options is not used.
+	* NEWS, src/chsh.c, man/chsh.1.xml: Add --root option.
+	chsh's usage split in smaller messages.
+	* src/chsh.c: The getopt index of long options is not used.
 
 2011-10-22  Nicolas François  <nicolas.francois@centraliens.net>
 

NEWS

@@ -30,6 +30,8 @@ shadow-4.1.4.3 -> shadow-4.1.5					UNRELEASED
     is created if the password is changed and passwd requires a
     shadow entry.
   * Add --root option.
+- chsh
+  * Add --root option.
 - faillog
   * The -l, -m, -r, -t options only act on the existing users, unless -a is
     specified.

man/chsh.1.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
    Copyright (c) 1990       , Julianne Frances Haugh
-   Copyright (c) 2007 - 2008, Nicolas François
+   Copyright (c) 2007 - 2011, Nicolas François
    All rights reserved.
   
    Redistribution and use in source and binary forms, with or without
@@ -84,6 +84,19 @@
 	  <para>Display help message and exit.</para>
 	</listitem>
       </varlistentry>
+      <varlistentry>
+	<term>
+	  <option>-R</option>, <option>--root</option>
+	  <replaceable>CHROOT_DIR</replaceable>
+	</term>
+	<listitem>
+	  <para>
+	    Apply changes in the <replaceable>CHROOT_DIR</replaceable>
+	    directory and use the configuration files from the
+	    <replaceable>CHROOT_DIR</replaceable> directory.
+	  </para>
+	</listitem>
+      </varlistentry>
       <varlistentry>
 	<term>
 	  <option>-s</option>, <option>--shell</option> <replaceable>SHELL</replaceable>

src/chsh.c

@@ -103,12 +103,16 @@ static void fail_exit (int code)
  */
 static void usage (int status)
 {
-	fputs (_("Usage: chsh [options] [LOGIN]\n"
+	FILE *usageout = (E_SUCCESS != status) ? stderr : stdout;
-	         "\n"
+	(void) fprintf (usageout,
-	         "Options:\n"
+	                _("Usage: %s [options] [LOGIN]\n"
-	         "  -h, --help                    display this help message and exit\n"
+	                  "\n"
-	         "  -s, --shell SHELL             new login shell for the user account\n"
+	                  "Options:\n"),
-	         "\n"), (E_SUCCESS != status) ? stderr : stdout);
+	                Prog);
+	(void) fputs (_("  -h, --help                    display this help message and exit\n"), usageout);
+	(void) fputs (_("  -R, --root CHROOT_DIR         directory to chroot into\n"), usageout);
+	(void) fputs (_("  -s, --shell SHELL             new login shell for the user account\n"), usageout);
+	(void) fputs ("\n", usageout);
 	exit (status);
 }
 
@@ -200,21 +204,22 @@ static bool shell_is_listed (const char *sh)
  */
 static void process_flags (int argc, char **argv)
 {
-	int option_index = 0;
 	int c;
 	static struct option long_options[] = {
 		{"help", no_argument, NULL, 'h'},
+		{"root", required_argument, NULL, 'R'},
 		{"shell", required_argument, NULL, 's'},
 		{NULL, 0, NULL, '\0'}
 	};
 
-	while ((c =
+	while ((c = getopt_long (argc, argv, "hR:s:",
-		getopt_long (argc, argv, "hs:", long_options,
+	                         long_options, NULL)) != -1) {
-		             &option_index)) != -1) {
 		switch (c) {
 		case 'h':
 			usage (E_SUCCESS);
 			break;
+		case 'R': /* no-op, handled in process_root_flag () */
+			break;
 		case 's':
 			sflg = true;
 			STRFCPY (loginsh, optarg);
@@ -432,21 +437,23 @@ int main (int argc, char **argv)
 
 	sanitize_env ();
 
-	(void) setlocale (LC_ALL, "");
-	(void) bindtextdomain (PACKAGE, LOCALEDIR);
-	(void) textdomain (PACKAGE);
-
-	/*
-	 * This command behaves different for root and non-root users.
-	 */
-	amroot = (getuid () == 0);
-
 	/*
 	 * Get the program name. The program name is used as a prefix to
 	 * most error messages.
 	 */
 	Prog = Basename (argv[0]);
 
+	(void) setlocale (LC_ALL, "");
+	(void) bindtextdomain (PACKAGE, LOCALEDIR);
+	(void) textdomain (PACKAGE);
+
+	process_root_flag ("-R", argc, argv);
+
+	/*
+	 * This command behaves different for root and non-root users.
+	 */
+	amroot = (getuid () == 0);
+
 	OPENLOG ("chsh");
 
 	/* parse the command line options */