diff --git libselinux-2.8/man/man8/selinux.8 libselinux-2.8/man/man8/selinux.8

index e37aee6..bf23b65 100644

--- libselinux-2.8/man/man8/selinux.8

+++ libselinux-2.8/man/man8/selinux.8

@@ -91,11 +91,13 @@ This manual page was written by Dan Walsh <dwalsh@redhat.com>.

 .BR sepolicy (8),

 .BR system-config-selinux (8),

 .BR togglesebool (8),

-.BR restorecon (8),

 .BR fixfiles (8),

+.BR restorecon (8),

 .BR setfiles (8),

 .BR semanage (8),

 .BR sepolicy (8)

+.BR seinfo (8),

+.BR sesearch (8)

 Every confined service on the system has a man page in the following format:

 .br

diff --git libselinux-2.8/src/avc_sidtab.c libselinux-2.8/src/avc_sidtab.c

index 9669264..c775430 100644

--- libselinux-2.8/src/avc_sidtab.c

+++ libselinux-2.8/src/avc_sidtab.c

@@ -81,6 +81,11 @@ sidtab_context_to_sid(struct sidtab *s,

 	int hvalue, rc = 0;

 	struct sidtab_node *cur;

+	if (! ctx) {

+		errno=EINVAL;

+		return -1;

+	}

+

 	*sid = NULL;

 	hvalue = sidtab_hash(ctx);

diff --git libselinux-2.8/src/booleans.c libselinux-2.8/src/booleans.c

index b3ea362..a6d46fe 100644

--- libselinux-2.8/src/booleans.c

+++ libselinux-2.8/src/booleans.c

@@ -55,6 +55,7 @@ int security_get_boolean_names(char ***names, int *len)

 	snprintf(path, sizeof path, "%s%s", selinux_mnt, SELINUX_BOOL_DIR);

 	*len = scandir(path, &namelist, &filename_select, alphasort);

 	if (*len <= 0) {

+		errno = ENOENT;

 		return -1;

 	}

diff --git libselinux-2.8/src/canonicalize_context.c libselinux-2.8/src/canonicalize_context.c

index ba4c9a2..c815872 100644

--- libselinux-2.8/src/canonicalize_context.c

+++ libselinux-2.8/src/canonicalize_context.c

@@ -17,6 +17,11 @@ int security_canonicalize_context_raw(const char * con,

 	size_t size;

 	int fd, ret;

+	if (! con) {

+		errno=EINVAL;

+		return -1;

+	}

+

 	if (!selinux_mnt) {

 		errno = ENOENT;

 		return -1;

diff --git libselinux-2.8/src/check_context.c libselinux-2.8/src/check_context.c

index 8a7997f..5be8434 100644

--- libselinux-2.8/src/check_context.c

+++ libselinux-2.8/src/check_context.c

@@ -14,6 +14,11 @@ int security_check_context_raw(const char * con)

 	char path[PATH_MAX];

 	int fd, ret;

+	if (! con) {

+		errno=EINVAL;

+		return -1;

+	}

+

 	if (!selinux_mnt) {

 		errno = ENOENT;

 		return -1;

diff --git libselinux-2.8/src/compute_av.c libselinux-2.8/src/compute_av.c

index 1d05e7b..d9095cc 100644

--- libselinux-2.8/src/compute_av.c

+++ libselinux-2.8/src/compute_av.c

@@ -26,6 +26,11 @@ int security_compute_av_flags_raw(const char * scon,

 		return -1;

 	}

+	if ((! scon) || (! tcon)) {

+		errno=EINVAL;

+		return -1;

+	}

+

 	snprintf(path, sizeof path, "%s/access", selinux_mnt);

 	fd = open(path, O_RDWR | O_CLOEXEC);

 	if (fd < 0)

diff --git libselinux-2.8/src/compute_create.c libselinux-2.8/src/compute_create.c

index 0975aea..3e6a48c 100644

--- libselinux-2.8/src/compute_create.c

+++ libselinux-2.8/src/compute_create.c

@@ -64,6 +64,11 @@ int security_compute_create_name_raw(const char * scon,

 		return -1;

 	}

+	if ((! scon) || (! tcon)) {

+		errno=EINVAL;

+		return -1;

+	}

+

 	snprintf(path, sizeof path, "%s/create", selinux_mnt);

 	fd = open(path, O_RDWR | O_CLOEXEC);

 	if (fd < 0)

diff --git libselinux-2.8/src/compute_member.c libselinux-2.8/src/compute_member.c

index 4e2d221..d1dd977 100644

--- libselinux-2.8/src/compute_member.c

+++ libselinux-2.8/src/compute_member.c

@@ -25,6 +25,11 @@ int security_compute_member_raw(const char * scon,

 		return -1;

 	}

+	if ((! scon) || (! tcon)) {

+		errno=EINVAL;

+		return -1;

+	}

+

 	snprintf(path, sizeof path, "%s/member", selinux_mnt);

 	fd = open(path, O_RDWR | O_CLOEXEC);

 	if (fd < 0)

diff --git libselinux-2.8/src/compute_relabel.c libselinux-2.8/src/compute_relabel.c

index 49f77ef..c3db7c0 100644

--- libselinux-2.8/src/compute_relabel.c

+++ libselinux-2.8/src/compute_relabel.c

@@ -25,6 +25,11 @@ int security_compute_relabel_raw(const char * scon,

 		return -1;

 	}

+	if ((! scon) || (! tcon)) {

+		errno=EINVAL;

+		return -1;

+	}

+

 	snprintf(path, sizeof path, "%s/relabel", selinux_mnt);

 	fd = open(path, O_RDWR | O_CLOEXEC);

 	if (fd < 0)

diff --git libselinux-2.8/src/compute_user.c libselinux-2.8/src/compute_user.c

index 7b88121..401fd10 100644

--- libselinux-2.8/src/compute_user.c

+++ libselinux-2.8/src/compute_user.c

@@ -24,6 +24,11 @@ int security_compute_user_raw(const char * scon,

 		return -1;

 	}

+	if (! scon) {

+		errno=EINVAL;

+		return -1;

+	}

+

 	snprintf(path, sizeof path, "%s/user", selinux_mnt);

 	fd = open(path, O_RDWR | O_CLOEXEC);

 	if (fd < 0)

diff --git libselinux-2.8/src/fsetfilecon.c libselinux-2.8/src/fsetfilecon.c

index 52707d0..0cbe12d 100644

--- libselinux-2.8/src/fsetfilecon.c

+++ libselinux-2.8/src/fsetfilecon.c

@@ -9,8 +9,12 @@

 int fsetfilecon_raw(int fd, const char * context)

 {

-	int rc = fsetxattr(fd, XATTR_NAME_SELINUX, context, strlen(context) + 1,

-			 0);

+	int rc;

+	if (! context) {

+		errno=EINVAL;

+		return -1;

+	}

+	rc = fsetxattr(fd, XATTR_NAME_SELINUX, context, strlen(context) + 1, 0);

 	if (rc < 0 && errno == ENOTSUP) {

 		char * ccontext = NULL;

 		int err = errno;

diff --git libselinux-2.8/src/lsetfilecon.c libselinux-2.8/src/lsetfilecon.c

index 1d3b28a..ea6d70b 100644

--- libselinux-2.8/src/lsetfilecon.c

+++ libselinux-2.8/src/lsetfilecon.c

@@ -9,8 +9,13 @@

 int lsetfilecon_raw(const char *path, const char * context)

 {

-	int rc = lsetxattr(path, XATTR_NAME_SELINUX, context, strlen(context) + 1,

-			 0);

+	int rc;

+	if (! context) {

+		errno=EINVAL;

+		return -1;

+	}

+

+	rc = lsetxattr(path, XATTR_NAME_SELINUX, context, strlen(context) + 1, 0);

 	if (rc < 0 && errno == ENOTSUP) {

 		char * ccontext = NULL;

 		int err = errno;

diff --git libselinux-2.8/src/setfilecon.c libselinux-2.8/src/setfilecon.c

index d05969c..3f0200e 100644

--- libselinux-2.8/src/setfilecon.c

+++ libselinux-2.8/src/setfilecon.c

@@ -9,8 +9,12 @@

 int setfilecon_raw(const char *path, const char * context)

 {

-	int rc = setxattr(path, XATTR_NAME_SELINUX, context, strlen(context) + 1,

-			0);

+	int rc;

+	if (! context) {

+		errno=EINVAL;

+		return -1;

+	}

+	rc = setxattr(path, XATTR_NAME_SELINUX, context, strlen(context) + 1, 0);

 	if (rc < 0 && errno == ENOTSUP) {

 		char * ccontext = NULL;

 		int err = errno;

diff --git libselinux-2.8/utils/matchpathcon.c libselinux-2.8/utils/matchpathcon.c

index 67e4a43..9756d7d 100644

--- libselinux-2.8/utils/matchpathcon.c

+++ libselinux-2.8/utils/matchpathcon.c

@@ -14,7 +14,7 @@

 static __attribute__ ((__noreturn__)) void usage(const char *progname)

 {

 	fprintf(stderr,

-		"usage:  %s [-N] [-n] [-f file_contexts] [ -P policy_root_path ] [-p prefix] [-Vq] path...\n",

+		"usage:  %s [-V] [-N] [-n] [-m type] [-f file_contexts_file] [-p prefix] [-P policy_root_path] filepath...\n",

 		progname);

 	exit(1);

 }