[meta-mentor] [PATCH 2/3] shadow-native: Add --root option in groupmems

[mikhail_durnev at mentor.com]

From: Mikhail Durnev <mikhail_durnev at mentor.com>

    Patch add_root_cmd_groupmems.patch that we apply to shadow-native
    allows program groupmems from the shadow utility package to chroot()
    so it can be used to modify etc/passwd and etc/group if they are
    located in a sysroot.

    The --root option in groupmems is needed for class useradd.

Signed-off-by: Mikhail Durnev <mikhail_durnev at mentor.com>
---
 recipes/shadow/files/add_root_cmd_groupmems.patch |   75 +++++++++++++++++++++
 recipes/shadow/shadow-native_4.1.4.3.bbappend     |    5 ++
 2 files changed, 80 insertions(+)
 create mode 100644 recipes/shadow/files/add_root_cmd_groupmems.patch
 create mode 100644 recipes/shadow/shadow-native_4.1.4.3.bbappend

diff --git a/recipes/shadow/files/add_root_cmd_groupmems.patch b/recipes/shadow/files/add_root_cmd_groupmems.patch
new file mode 100644
index 0000000..a59d89e
--- /dev/null
+++ b/recipes/shadow/files/add_root_cmd_groupmems.patch
@@ -0,0 +1,75 @@
+Add a --root command option to groupmems utility.
+
+This option allows the utility to be chrooted when run under pseudo.
+
+Signed-off-by: Mikhail Durnev <mikhail_durnev at mentor.com>
+
+diff -Naur old/src/groupmems.c new/src/groupmems.c
+--- old/src/groupmems.c	2011-02-13 11:58:16.000000000 -0600
++++ new/src/groupmems.c	2013-05-30 04:45:38.000000000 -0500
+@@ -60,6 +60,7 @@
+ #define EXIT_MEMBER_EXISTS	7	/* member of group already exists */
+ #define EXIT_INVALID_USER	8	/* specified user does not exist */
+ #define EXIT_INVALID_GROUP	9	/* specified group does not exist */
++#define EXIT_BAD_ARG		10	/* invalid argument to option */
+ 
+ /*
+  * Global variables
+@@ -79,6 +80,7 @@
+ static bool is_shadowgrp;
+ static bool sgr_locked = false;
+ #endif
++static const char *newroot = "";
+ 
+ /* local function prototypes */
+ static char *whoami (void);
+@@ -368,6 +370,7 @@
+ 	                "Options:\n"
+ 	                "  -g, --group groupname         change groupname instead of the user's group\n"
+ 	                "                                (root only)\n"
++	                "  -R, --root CHROOT_DIR         directory to chroot into\n"
+ 	                "\n"
+ 	                "Actions:\n"
+ 	                "  -a, --add username            add username to the members of the group\n"
+@@ -391,10 +394,11 @@
+ 		{"group", required_argument, NULL, 'g'},
+ 		{"list", no_argument, NULL, 'l'},
+ 		{"purge", no_argument, NULL, 'p'},
++		{"root", required_argument, NULL, 'R'},
+ 		{NULL, 0, NULL, '\0'}
+ 	};
+ 
+-	while ((arg = getopt_long (argc, argv, "a:d:g:lp", long_options,
++	while ((arg = getopt_long (argc, argv, "a:d:g:lpR:", long_options,
+ 	                           &option_index)) != EOF) {
+ 		switch (arg) {
+ 		case 'a':
+@@ -416,6 +420,28 @@
+ 			purge = true;
+ 			++exclusive;
+ 			break;
++		case 'R':
++			if ('/' != optarg[0]) {
++				fprintf (stderr,
++					 _("%s: invalid chroot path '%s'\n"),
++					Prog, optarg);
++				exit (EXIT_BAD_ARG);
++			}
++			newroot = optarg;
++
++			if (access (newroot, F_OK) != 0) {
++				fprintf(stderr,
++					_("%s: chroot directory %s does not exist\n"),
++					Prog, newroot);
++				exit (EXIT_BAD_ARG);
++			}
++			if ( chroot(newroot) != 0 ) {
++				fprintf(stderr,
++					_("%s: unable to chroot to directory %s\n"),
++					Prog, newroot);
++				exit (EXIT_BAD_ARG);
++			}
++			break;
+ 		default:
+ 			usage ();
+ 		}
diff --git a/recipes/shadow/shadow-native_4.1.4.3.bbappend b/recipes/shadow/shadow-native_4.1.4.3.bbappend
new file mode 100644
index 0000000..de6e40f
--- /dev/null
+++ b/recipes/shadow/shadow-native_4.1.4.3.bbappend
@@ -0,0 +1,5 @@
+PRINC := "${@int(PRINC) + 1}"
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+
+SRC_URI += "file://add_root_cmd_groupmems.patch"
-- 
1.7.9.5