diff --git a/fdopen_strncat.diff b/fdopen_strncat.diff
new file mode 100644
index 0000000..c0fbe40
--- /dev/null
+++ b/fdopen_strncat.diff
@@ -0,0 +1,22 @@
+--- ./rpmio/rpmio.c.orig	2012-08-30 16:47:57.000000000 +0000
++++ ./rpmio/rpmio.c	2012-08-30 16:54:01.000000000 +0000
+@@ -1370,7 +1370,7 @@ static void cvtfmode (const char *m,
+ 
+ FD_t Fdopen(FD_t ofd, const char *fmode)
+ {
+-    char stdio[20], other[20], zstdio[20];
++    char stdio[20], other[20], zstdio[40];
+     const char *end = NULL;
+     FDIO_t iof = NULL;
+     FD_t fd = ofd;
+@@ -1385,8 +1385,8 @@ fprintf(stderr, "*** Fdopen(%p,%s) %s\n"
+     if (stdio[0] == '\0')
+ 	return NULL;
+     zstdio[0] = '\0';
+-    strncat(zstdio, stdio, sizeof(zstdio) - strlen(zstdio));
+-    strncat(zstdio, other, sizeof(zstdio) - strlen(zstdio));
++    strncat(zstdio, stdio, sizeof(zstdio) - strlen(zstdio) - 1);
++    strncat(zstdio, other, sizeof(zstdio) - strlen(zstdio) - 1);
+ 
+     if (end == NULL && other[0] == '\0')
+ 	return fd;
diff --git a/python3-rpm.spec b/python3-rpm.spec
index 25367fd..5b826aa 100644
--- a/python3-rpm.spec
+++ b/python3-rpm.spec
@@ -15,6 +15,7 @@
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
 #
 
+
 Name:           python3-rpm
 Version:        4.9.1.2
 Release:        0
diff --git a/rpm-python.spec b/rpm-python.spec
index b1125b1..c53c2eb 100644
--- a/rpm-python.spec
+++ b/rpm-python.spec
@@ -15,6 +15,7 @@
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
 #
 
+
 Name:           rpm-python
 Version:        4.10.0
 Release:        0
diff --git a/rpm.spec b/rpm.spec
index f80f1f9..0cc29eb 100644
--- a/rpm.spec
+++ b/rpm.spec
@@ -15,6 +15,7 @@
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
 #
 
+
 Name:           rpm
 BuildRequires:  binutils
 BuildRequires:  bzip2
@@ -132,6 +133,7 @@ Patch77:        langnoc.diff
 Patch78:        headerchk2.diff
 Patch79:        helperenv.diff
 Patch80:        obsoletesdeptag.diff
+Patch81:        fdopen_strncat.diff
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 #
 # avoid bootstrapping problem
@@ -204,7 +206,7 @@ rm -f rpmdb/db.h
 %patch -P 50 -P 51 -P 52 -P 53 -P 54 -P 55 -P 56 -P 57 -P 58 -P 59
 %patch -P 60 -P 61 -P 62 -P 63 -P 64 -P 65 -P 66 -P 67 -P 68 -P 69
 %patch -P 70 -P 71 -P 72 -P 73 -P 74 -P 75 -P 76 -P 77 -P 78 -P 79
-%patch -P 80
+%patch -P 80 -P 81
 #chmod 755 scripts/find-supplements{,.ksyms}
 #chmod 755 scripts/find-provides.ksyms scripts/find-requires.ksyms
 #chmod 755 scripts/firmware.prov