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authorTobias Brunner <tobias@strongswan.org>2016-04-01 19:03:22 +0200
committerTobias Brunner <tobias@strongswan.org>2016-04-04 10:43:46 +0200
commit85597f2983c81ef1a4522020c885f1431cb6b2aa (patch)
tree2473b5627ff96226dd680bccdbf741a5a768eeb4 /src
parent90c8cf6819a9d68ba945beb02a03ee52364c3a74 (diff)
downloadstrongswan-85597f2983c81ef1a4522020c885f1431cb6b2aa.tar.bz2
strongswan-85597f2983c81ef1a4522020c885f1431cb6b2aa.tar.xz
string: Gracefully handle NULL in str*eq() macros
Diffstat (limited to 'src')
-rw-r--r--src/libstrongswan/tests/suites/test_utils.c78
-rw-r--r--src/libstrongswan/utils/utils/string.h8
2 files changed, 82 insertions, 4 deletions
diff --git a/src/libstrongswan/tests/suites/test_utils.c b/src/libstrongswan/tests/suites/test_utils.c
index 504562615..1eb3c8bc3 100644
--- a/src/libstrongswan/tests/suites/test_utils.c
+++ b/src/libstrongswan/tests/suites/test_utils.c
@@ -197,6 +197,82 @@ START_TEST(test_round)
END_TEST
/*******************************************************************************
+ * streq
+ */
+
+static struct {
+ char *a;
+ char *b;
+ bool eq;
+ bool case_eq;
+} streq_data[] = {
+ {NULL, NULL, TRUE, TRUE},
+ {NULL, "", FALSE, FALSE},
+ {"", NULL, FALSE, FALSE},
+ {"abc", "", FALSE, FALSE},
+ {"abc", "abc", TRUE, TRUE},
+ {"abc", "ABC", FALSE, TRUE},
+};
+
+START_TEST(test_streq)
+{
+ bool eq;
+
+ ck_assert(streq(streq_data[_i].a, streq_data[_i].a));
+ ck_assert(streq(streq_data[_i].b, streq_data[_i].b));
+ eq = streq(streq_data[_i].a, streq_data[_i].b);
+ ck_assert(eq == streq_data[_i].eq);
+
+ ck_assert(strcaseeq(streq_data[_i].a, streq_data[_i].a));
+ ck_assert(strcaseeq(streq_data[_i].b, streq_data[_i].b));
+ eq = strcaseeq(streq_data[_i].a, streq_data[_i].b);
+ ck_assert(eq == streq_data[_i].case_eq);
+}
+END_TEST
+
+/*******************************************************************************
+ * strneq
+ */
+
+static struct {
+ char *a;
+ char *b;
+ size_t n;
+ bool eq;
+ bool case_eq;
+} strneq_data[] = {
+ {NULL, NULL, 0, TRUE, TRUE},
+ {NULL, NULL, 10, TRUE, TRUE},
+ {NULL, "", 0, FALSE, FALSE},
+ {"", NULL, 0, FALSE, FALSE},
+ {"abc", "", 0, TRUE, TRUE},
+ {"abc", "", 1, FALSE, FALSE},
+ {"abc", "ab", 1, TRUE, TRUE},
+ {"abc", "ab", 2, TRUE, TRUE},
+ {"abc", "ab", 3, FALSE, FALSE},
+ {"abc", "abc", 3, TRUE, TRUE},
+ {"abc", "abc", 4, TRUE, TRUE},
+ {"abc", "abC", 2, TRUE, TRUE},
+ {"abc", "abC", 3, FALSE, TRUE},
+};
+
+START_TEST(test_strneq)
+{
+ bool eq;
+
+ ck_assert(strneq(strneq_data[_i].a, strneq_data[_i].a, strneq_data[_i].n));
+ ck_assert(strneq(strneq_data[_i].b, strneq_data[_i].b, strneq_data[_i].n));
+ eq = strneq(strneq_data[_i].a, strneq_data[_i].b, strneq_data[_i].n);
+ ck_assert(eq == strneq_data[_i].eq);
+
+ ck_assert(strncaseeq(strneq_data[_i].a, strneq_data[_i].a, strneq_data[_i].n));
+ ck_assert(strncaseeq(strneq_data[_i].b, strneq_data[_i].b, strneq_data[_i].n));
+ eq = strncaseeq(strneq_data[_i].a, strneq_data[_i].b, strneq_data[_i].n);
+ ck_assert(eq == strneq_data[_i].case_eq);
+}
+END_TEST
+
+/*******************************************************************************
* strpfx
*/
@@ -848,6 +924,8 @@ Suite *utils_suite_create()
suite_add_tcase(s, tc);
tc = tcase_create("string helper");
+ tcase_add_loop_test(tc, test_streq, 0, countof(streq_data));
+ tcase_add_loop_test(tc, test_strneq, 0, countof(strneq_data));
tcase_add_loop_test(tc, test_strpfx, 0, countof(strpfx_data));
suite_add_tcase(s, tc);
diff --git a/src/libstrongswan/utils/utils/string.h b/src/libstrongswan/utils/utils/string.h
index 60eaaae22..562516b91 100644
--- a/src/libstrongswan/utils/utils/string.h
+++ b/src/libstrongswan/utils/utils/string.h
@@ -27,7 +27,7 @@
*/
static inline bool streq(const char *x, const char *y)
{
- return strcmp(x, y) == 0;
+ return (x == y) || (x && y && strcmp(x, y) == 0);
}
/**
@@ -35,7 +35,7 @@ static inline bool streq(const char *x, const char *y)
*/
static inline bool strneq(const char *x, const char *y, size_t len)
{
- return strncmp(x, y, len) == 0;
+ return (x == y) || (x && y && strncmp(x, y, len) == 0);
}
/**
@@ -51,7 +51,7 @@ static inline bool strpfx(const char *x, const char *prefix)
*/
static inline bool strcaseeq(const char *x, const char *y)
{
- return strcasecmp(x, y) == 0;
+ return (x == y) || (x && y && strcasecmp(x, y) == 0);
}
/**
@@ -59,7 +59,7 @@ static inline bool strcaseeq(const char *x, const char *y)
*/
static inline bool strncaseeq(const char *x, const char *y, size_t len)
{
- return strncasecmp(x, y, len) == 0;
+ return (x == y) || (x && y && strncasecmp(x, y, len) == 0);
}
/**