preinitialize variables to work-around warnings with clang's scan-build

Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>

5 files changed, 16 insertions, 13 deletions

diff --git a/lib/dh.c b/lib/dh.c
index 06e6145984..8f8905f7c2 100644
--- a/lib/dh.c
+++ b/lib/dh.c
@@ -442,7 +442,7 @@ gnutls_dh_params_export_pkcs3(gnutls_dh_params_t params,
 			      unsigned char *params_data,
 			      size_t * params_data_size)
 {
-	gnutls_datum_t out;
+	gnutls_datum_t out = {NULL, 0};
 	int ret;
 
 	ret = gnutls_dh_params_export2_pkcs3(params, format, &out);
diff --git a/lib/opencdk/read-packet.c b/lib/opencdk/read-packet.c
index 87ab06c569..202fdee4f7 100644
--- a/lib/opencdk/read-packet.c
+++ b/lib/opencdk/read-packet.c
@@ -85,7 +85,7 @@ static u16 read_16(cdk_stream_t s)
 /* read about S2K at http://tools.ietf.org/html/rfc4880#section-3.7.1 */
 static cdk_error_t read_s2k(cdk_stream_t inp, cdk_s2k_t s2k)
 {
-	size_t nread;
+	size_t nread = 0;
 
 	s2k->mode = cdk_stream_getc(inp);
 	s2k->hash_algo = cdk_stream_getc(inp);
@@ -219,7 +219,7 @@ read_pubkey_enc(cdk_stream_t inp, size_t pktlen, cdk_pkt_pubkey_enc_t pke)
 
 static cdk_error_t read_mdc(cdk_stream_t inp, cdk_pkt_mdc_t mdc)
 {
-	size_t n;
+	size_t n = 0;
 	cdk_error_t rc;
 
 	if (!inp || !mdc)
@@ -319,7 +319,7 @@ read_public_subkey(cdk_stream_t inp, size_t pktlen, cdk_pkt_pubkey_t pk)
 static cdk_error_t
 read_secret_key(cdk_stream_t inp, size_t pktlen, cdk_pkt_seckey_t sk)
 {
-	size_t p1, p2, nread;
+	size_t p1, p2, nread = 0;
 	int i, nskey;
 	int rc;
 
@@ -574,7 +574,7 @@ static cdk_error_t
 read_subpkt(cdk_stream_t inp, cdk_subpkt_t * r_ctx, size_t * r_nbytes)
 {
 	int c, c1;
-	size_t size, nread, n;
+	size_t size, nread = 0, n;
 	cdk_subpkt_t node;
 	cdk_error_t rc;
 
@@ -620,11 +620,12 @@ read_subpkt(cdk_stream_t inp, cdk_subpkt_t * r_ctx, size_t * r_nbytes)
 	n++;
 	node->size--;
 	rc = stream_read(inp, node->d, node->size, &nread);
-	n += nread;
 	if (rc) {
 		cdk_subpkt_free(node);
 		return rc;
 	}
+
+	n += nread;
 	*r_nbytes = n;
 	if (!*r_ctx)
 		*r_ctx = node;
@@ -821,7 +822,7 @@ read_literal(cdk_stream_t inp, size_t pktlen,
 	     cdk_pkt_literal_t * ret_pt, int is_partial)
 {
 	cdk_pkt_literal_t pt = *ret_pt;
-	size_t nread;
+	size_t nread = 0;
 	cdk_error_t rc;
 
 	if (!inp || !pt)
@@ -935,7 +936,7 @@ read_new_length(cdk_stream_t inp,
 static cdk_error_t skip_packet(cdk_stream_t inp, size_t pktlen)
 {
 	byte buf[BUFSIZE];
-	size_t nread, buflen = DIM(buf);
+	size_t nread = 0, buflen = DIM(buf);
 
 	while (pktlen > 0) {
 		cdk_error_t rc;
diff --git a/lib/opencdk/stream.c b/lib/opencdk/stream.c
index a4e54926c7..496115aa3e 100644
--- a/lib/opencdk/stream.c
+++ b/lib/opencdk/stream.c
@@ -939,7 +939,7 @@ int cdk_stream_read(cdk_stream_t s, void *buf, size_t buflen)
 
 int cdk_stream_getc(cdk_stream_t s)
 {
-	unsigned char buf[2];
+	unsigned char buf[2] = {0};
 	int nread;
 
 	if (!s) {
diff --git a/lib/x509/common.c b/lib/x509/common.c
index 12fc7c7e56..38425bde4c 100644
--- a/lib/x509/common.c
+++ b/lib/x509/common.c
@@ -936,7 +936,7 @@ _gnutls_x509_der_encode_and_copy(ASN1_TYPE src, const char *src_name,
 				 int str)
 {
 	int result;
-	gnutls_datum_t encoded;
+	gnutls_datum_t encoded = {NULL, 0};
 
 	result = _gnutls_x509_der_encode(src, src_name, &encoded, str);
 
@@ -1240,7 +1240,7 @@ int
 _gnutls_x509_get_signature_algorithm(ASN1_TYPE src, const char *src_name)
 {
 	int result;
-	gnutls_datum_t sa;
+	gnutls_datum_t sa = {NULL, 0};
 
 	/* Read the signature algorithm. Note that parameters are not
 	 * read. They will be read from the issuer's certificate if needed.
diff --git a/lib/x509/privkey_pkcs8.c b/lib/x509/privkey_pkcs8.c
index 06c9ec0bce..39728885ba 100644
--- a/lib/x509/privkey_pkcs8.c
+++ b/lib/x509/privkey_pkcs8.c
@@ -383,7 +383,7 @@ gnutls_x509_privkey_export_pkcs8(gnutls_x509_privkey_t key,
 				 void *output_data,
 				 size_t * output_data_size)
 {
-	ASN1_TYPE pkcs8_asn, pkey_info;
+	ASN1_TYPE pkcs8_asn = NULL, pkey_info;
 	int ret;
 	gnutls_datum_t tmp;
 	schema_id schema;
@@ -471,6 +471,8 @@ gnutls_pkcs8_info(const gnutls_datum_t * data, gnutls_x509_crt_fmt_t format,
 	const struct pkcs_cipher_schema_st *p = NULL;
 	struct pbkdf2_params kdf;
 
+	memset(&kdf, 0, sizeof(kdf));
+
 	if (oid)
 		*oid = NULL;
 
@@ -579,7 +581,7 @@ gnutls_x509_privkey_export2_pkcs8(gnutls_x509_privkey_t key,
 				  const char *password,
 				  unsigned int flags, gnutls_datum_t * out)
 {
-	ASN1_TYPE pkcs8_asn, pkey_info;
+	ASN1_TYPE pkcs8_asn = NULL, pkey_info;
 	int ret;
 	gnutls_datum_t tmp;
 	schema_id schema;