commit 90ca5e5989ec289a51d2e1c7c8caa59063a6fb70
Author: Panu Matilainen <pmatilai@redhat.com>
Date:   Thu Apr 24 13:23:22 2008 +0300

    Check for chroot() result in rpmtsRun()
    - bail out early if it fails instead of blindly continuing and potentially
      messing in real root (chroot can fail for priviledged user too)

diff --git a/lib/transaction.c b/lib/transaction.c
index 702e2f4..2127006 100644
--- a/lib/transaction.c
+++ b/lib/transaction.c
@@ -1195,7 +1195,10 @@ int rpmtsRun(rpmts ts, rpmps okProbs, rpmprobFilterFlags ignoreSet)
 	if (rootDir != NULL && strcmp(rootDir, "/") && *rootDir == '/') {
 	    /* opening db before chroot not optimal, see rhbz#103852 c#3 */
 	    xx = rpmdbOpenAll(ts->rdb);
-	    xx = chroot(rootDir);
+	    if (chroot(rootDir) == -1) {
+		rpmlog(RPMLOG_ERR, _("Unable to change root directory: %m\n"));
+		return -1;
+	    }
 	}
 	(void) rpmtsSetChrootDone(ts, 1);
     }