shadow-native: Add --root option in groupmems

    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.

(From OE-Core rev: ae7aa0ef68372c15224c0c518cb90ba7350137b4)

Signed-off-by: Mikhail Durnev <mikhail_durnev@mentor.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/meta/recipes-extended/shadow/files/add_root_cmd_groupmems.patch b/meta/recipes-extended/shadow/files/add_root_cmd_groupmems.patch
new file mode 100644
index 0000000000..40444967ab
--- /dev/null
+++ b/meta/recipes-extended/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@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 ();
+                }