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120681c1a3
Several static analyzers (clang's one, Facebook Infer, etc.) warn about NULL pointer dereferences after a call to CU_ASSERT_PTR_NOT_NULL_FATAL() in the test code written using CUnit framework. This is because this CUnit macro is too complex for them to understand that the pointer cannot be NULL: it is translated to a call to CU_assertImplementation() with an argument as TRUE in order to mean that the call is fatal if the asserted condition failed (cf. http://cunit.sourceforge.net/doxdocs/group__Framework.html). A possible solution could consist in replacing the CU_ASSERT_..._FATAL() calls by assert() ones, as most static analyzers know about assert(). Nevertheless this seems to go against CUnit's API. An alternative solution consists in overriding CU_ASSERT_..._FATAL() macros in order to expand to assert() after a call to the matching CU_ASSERT_...() non-fatal macro. This appears to work fine and to remove many false-positive warnings from various static analyzers. As this substitution should only occur when using static analyzer, put it under #ifdef __CHECKER__, which is the macro used by sparse when analyzing the Linux kernel. Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* Authors: Chad Sellers <csellers@tresys.com>
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* Joshua Brindle <jbrindle@tresys.com>
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* Chris PeBenito <cpebenito@tresys.com>
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*
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* Copyright (C) 2006 Tresys Technology, LLC
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "test-expander-users.h"
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#include "helpers.h"
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#include <sepol/policydb/policydb.h>
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#include <CUnit/Basic.h>
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#include <stdlib.h>
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extern policydb_t user_expanded;
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static void check_user_roles(policydb_t * p, const char *user_name, const char **role_names, int num_roles)
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{
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user_datum_t *user;
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ebitmap_node_t *tnode;
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unsigned int i;
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int j;
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unsigned char *found; /* array of booleans of roles found */
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int extra = 0; /* number of extra roles found */
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user = (user_datum_t *) hashtab_search(p->p_users.table, user_name);
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if (!user) {
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printf("%s not found\n", user_name);
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CU_FAIL("user not found");
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return;
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}
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found = calloc(num_roles, sizeof(unsigned char));
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CU_ASSERT_FATAL(found != NULL);
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ebitmap_for_each_positive_bit(&user->roles.roles, tnode, i) {
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extra++;
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for (j = 0; j < num_roles; j++) {
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if (strcmp(role_names[j], p->p_role_val_to_name[i]) == 0) {
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extra--;
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found[j] += 1;
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break;
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}
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}
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}
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for (j = 0; j < num_roles; j++) {
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if (found[j] != 1) {
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printf("role %s associated with user %s %d times\n", role_names[j], user_name, found[j]);
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CU_FAIL("user mapping failure\n");
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}
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}
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free(found);
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CU_ASSERT_EQUAL(extra, 0);
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}
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void test_expander_user_mapping(void)
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{
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const char *roles1[] = { "user_check_1_1_r", "user_check_1_2_r" };
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check_user_roles(&user_expanded, "user_check_1", roles1, 2);
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}
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