Use gssalloc in more parts of GSSAPI

Fix some GSSAPI buffer allocations which were missed in
800358b: gss_export_sec_context,
gss_display_name, and IAKERB and SPNEGO token construction.

(cherry picked from commit 45e4eaa)

ticket: 7233

src/lib/gssapi/krb5/export_sec_context.c

@@ -57,7 +57,7 @@ krb5_gss_export_sec_context(minor_status, context_handle, interprocess_token)
         goto error_out;
 
     /* Allocate the buffer */
-    if ((obuffer = (krb5_octet *) xmalloc(bufsize)) == NULL) {
+    if ((obuffer = gssalloc_malloc(bufsize)) == NULL) {
         kret = ENOMEM;
         goto error_out;
     }

src/lib/gssapi/krb5/iakerb.c

@@ -284,9 +284,11 @@ iakerb_make_token(iakerb_ctx_id_t ctx,
     else
         tokenSize = 2 + data->length;
 
-    token->value = q = k5alloc(tokenSize, &code);
-    if (code != 0)
+    token->value = q = gssalloc_malloc(tokenSize);
+    if (q == NULL) {
+        code = ENOMEM;
         goto cleanup;
+    }
     token->length = tokenSize;
 
     if (initialContextToken) {

src/lib/gssapi/mechglue/g_dsp_name.c

@@ -119,7 +119,7 @@ gss_OID *		output_name_type;
     }
 
     if ((output_name_buffer->value =
-	 malloc(union_name->external_name->length + 1)) == NULL) {
+	 gssalloc_malloc(union_name->external_name->length + 1)) == NULL) {
 	if (output_name_type && *output_name_type != GSS_C_NULL_OID) {
 	    (void) generic_gss_release_oid(minor_status,
 					   output_name_type);

src/lib/gssapi/mechglue/g_glue.c

@@ -472,7 +472,7 @@ OM_uint32 gssint_export_internal_name(minor_status, mech_type,
 	mechOidTagLen + mechOidDERLen +
 	mech_type->length +
 	nameLenLen + dispName.length;
-    if ((name_buf->value = (void*)malloc(name_buf->length)) ==
+    if ((name_buf->value = (void*)gssalloc_malloc(name_buf->length)) ==
 	(void*)NULL) {
 	name_buf->length = 0;
 	(void) gss_release_buffer(&status, &dispName);

src/lib/gssapi/spnego/spnego_mech.c

@@ -1205,7 +1205,7 @@ make_NegHints(OM_uint32 *minor_status,
 	tlen += 1 + gssint_der_length_size(hintNameSize);
 	negHintsSize = tlen;
 
-	t = (unsigned char *)malloc(tlen);
+	t = gssalloc_malloc(tlen);
 	if (t == NULL) {
 		*minor_status = ENOMEM;
 		goto errout;
@@ -3071,7 +3071,7 @@ get_input_token(unsigned char **buff_in, unsigned int buff_length)
 		return (NULL);
 
 	input_token->length = len;
-	input_token->value = malloc(input_token->length);
+	input_token->value = gssalloc_malloc(input_token->length);
 
 	if (input_token->value == NULL) {
 		free(input_token);
@@ -3184,7 +3184,7 @@ put_mech_set(gss_OID_set mechSet, gss_buffer_t buf)
 	 * 0x30 [DER LEN]
 	 */
 	tlen = 1 + gssint_der_length_size(ilen) + ilen;
-	ptr = malloc(tlen);
+	ptr = gssalloc_malloc(tlen);
 	if (ptr == NULL)
 		return -1;
 
@@ -3282,7 +3282,7 @@ get_negTokenInit(OM_uint32 *minor_status,
 		return GSS_S_FAILURE;
 
 	tmpbuf.length = ptr - (unsigned char *)tmpbuf.value;
-	der_mechSet->value = malloc(tmpbuf.length);
+	der_mechSet->value = gssalloc_malloc(tmpbuf.length);
 	if (der_mechSet->value == NULL)
 		return GSS_S_FAILURE;
 	memcpy(der_mechSet->value, tmpbuf.value, tmpbuf.length);
@@ -3593,7 +3593,7 @@ make_spnego_tokenInit_msg(spnego_gss_ctx_id_t spnego_ctx,
 
 	tlen = g_token_size(gss_mech_spnego, negTokenInitSize);
 
-	t = (unsigned char *) malloc(tlen);
+	t = (unsigned char *) gssalloc_malloc(tlen);
 
 	if (t == NULL) {
 		return (-1);
@@ -3769,7 +3769,7 @@ make_spnego_tokenTarg_msg(OM_uint32 status, gss_OID mech_wanted,
 	dataLen += 1 + gssint_der_length_size(NegTokenSize);
 
 	tlen = dataLen;
-	t = (unsigned char *) malloc(tlen);
+	t = (unsigned char *) gssalloc_malloc(tlen);
 
 	if (t == NULL) {
 		ret = GSS_S_DEFECTIVE_TOKEN;