[SCM] Resolv Wrapper Repository - branch master updated
Andreas Schneider
asn at samba.org
Mon Aug 17 08:28:04 UTC 2015
The branch, master has been updated
via 538f2b9 rwrap: Fix strict aliasing warnings for symbol binding
via 07592c5 tests: Migrate to new cmocka API
via 96c55c9 Find the correct symbol when res_* is a define to __res_*
from c6e0ecf cmake: Drop test results via https.
https://git.samba.org/?p=resolv_wrapper.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit 538f2b9fda0e9015839b13db7fea3749e4a0044b
Author: Andreas Schneider <asn at cryptomilk.org>
Date: Wed Aug 12 15:59:53 2015 +0200
rwrap: Fix strict aliasing warnings for symbol binding
Signed-off-by: Andreas Schneider <asn at cryptomilk.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
commit 07592c591647a467e3d73e173ea19605d45058a2
Author: Andreas Schneider <asn at cryptomilk.org>
Date: Wed Aug 12 16:07:27 2015 +0200
tests: Migrate to new cmocka API
Signed-off-by: Andreas Schneider <asn at cryptomilk.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
commit 96c55c94429b7d0e0c52e14a60ea6d3d93689045
Author: Andrew Bartlett <abartlet at samba.org>
Date: Wed Aug 12 13:50:48 2015 +1200
Find the correct symbol when res_* is a define to __res_*
Signed-off-by: Andrew Bartlett <abartlet at samba.org>
Reviewed-by: Andreas Schneider <asn at cryptomilk.org>
Reviewed-by: Stefan Metzmacher <metze at samba.org>
-----------------------------------------------------------------------
Summary of changes:
src/resolv_wrapper.c | 227 +++++++++++++++++++++++-------------------
tests/test_dns_fake.c | 26 ++---
tests/test_real_res_query.c | 8 +-
tests/test_res_init.c | 19 ++--
tests/test_res_query_search.c | 24 +++--
5 files changed, 165 insertions(+), 139 deletions(-)
Changeset truncated at 500 lines:
diff --git a/src/resolv_wrapper.c b/src/resolv_wrapper.c
index 10af360..d36d080 100644
--- a/src/resolv_wrapper.c
+++ b/src/resolv_wrapper.c
@@ -981,51 +981,68 @@ static int rwrap_res_fake_hosts(const char *hostfile,
#include <dlfcn.h>
-struct rwrap_libc_fns {
- int (*libc_res_init)(void);
- int (*libc___res_init)(void);
- int (*libc_res_ninit)(struct __res_state *state);
- int (*libc___res_ninit)(struct __res_state *state);
- void (*libc_res_nclose)(struct __res_state *state);
- void (*libc___res_nclose)(struct __res_state *state);
- void (*libc_res_close)(void);
- void (*libc___res_close)(void);
- int (*libc_res_nquery)(struct __res_state *state,
- const char *dname,
- int class,
- int type,
- unsigned char *answer,
- int anslen);
- int (*libc___res_nquery)(struct __res_state *state,
+typedef int (*__libc_res_ninit)(struct __res_state *state);
+typedef int (*__libc___res_ninit)(struct __res_state *state);
+typedef void (*__libc_res_nclose)(struct __res_state *state);
+typedef void (*__libc___res_nclose)(struct __res_state *state);
+typedef int (*__libc_res_nquery)(struct __res_state *state,
const char *dname,
int class,
int type,
unsigned char *answer,
int anslen);
- int (*libc_res_nsearch)(struct __res_state *state,
- const char *dname,
- int class,
- int type,
- unsigned char *answer,
- int anslen);
- int (*libc___res_nsearch)(struct __res_state *state,
+typedef int (*__libc___res_nquery)(struct __res_state *state,
+ const char *dname,
+ int class,
+ int type,
+ unsigned char *answer,
+ int anslen);
+typedef int (*__libc_res_nsearch)(struct __res_state *state,
const char *dname,
int class,
int type,
unsigned char *answer,
int anslen);
+typedef int (*__libc___res_nsearch)(struct __res_state *state,
+ const char *dname,
+ int class,
+ int type,
+ unsigned char *answer,
+ int anslen);
+
+#define RWRAP_SYMBOL_ENTRY(i) \
+ union { \
+ __libc_##i f; \
+ void *obj; \
+ } _libc_##i
+
+struct rwrap_libc_symbols {
+ RWRAP_SYMBOL_ENTRY(res_ninit);
+ RWRAP_SYMBOL_ENTRY(__res_ninit);
+ RWRAP_SYMBOL_ENTRY(res_nclose);
+ RWRAP_SYMBOL_ENTRY(__res_nclose);
+ RWRAP_SYMBOL_ENTRY(res_nquery);
+ RWRAP_SYMBOL_ENTRY(__res_nquery);
+ RWRAP_SYMBOL_ENTRY(res_nsearch);
+ RWRAP_SYMBOL_ENTRY(__res_nsearch);
};
+#undef RWRAP_SYMBOL_ENTRY
struct rwrap {
- void *libc_handle;
- void *libresolv_handle;
+ struct {
+ void *handle;
+ struct rwrap_libc_symbols symbols;
+ } libc;
+
+ struct {
+ void *handle;
+ struct rwrap_libc_symbols symbols;
+ } libresolv;
bool initialised;
bool enabled;
char *socket_dir;
-
- struct rwrap_libc_fns fns;
};
static struct rwrap rwrap;
@@ -1063,7 +1080,7 @@ static void *rwrap_load_lib_handle(enum rwrap_lib lib)
switch (lib) {
case RWRAP_LIBRESOLV:
#ifdef HAVE_LIBRESOLV
- handle = rwrap.libresolv_handle;
+ handle = rwrap.libresolv.handle;
if (handle == NULL) {
for (i = 10; i >= 0; i--) {
char soname[256] = {0};
@@ -1075,18 +1092,18 @@ static void *rwrap_load_lib_handle(enum rwrap_lib lib)
}
}
- rwrap.libresolv_handle = handle;
+ rwrap.libresolv.handle = handle;
}
break;
#endif
/* FALL TROUGH */
case RWRAP_LIBC:
- handle = rwrap.libc_handle;
+ handle = rwrap.libc.handle;
#ifdef LIBC_SO
if (handle == NULL) {
handle = dlopen(LIBC_SO, flags);
- rwrap.libc_handle = handle;
+ rwrap.libc.handle = handle;
}
#endif
if (handle == NULL) {
@@ -1100,14 +1117,14 @@ static void *rwrap_load_lib_handle(enum rwrap_lib lib)
}
}
- rwrap.libc_handle = handle;
+ rwrap.libc.handle = handle;
}
break;
}
if (handle == NULL) {
#ifdef RTLD_NEXT
- handle = rwrap.libc_handle = rwrap.libresolv_handle = RTLD_NEXT;
+ handle = rwrap.libc.handle = rwrap.libresolv.handle = RTLD_NEXT;
#else
RWRAP_LOG(RWRAP_LOG_ERROR,
"Failed to dlopen library: %s\n",
@@ -1119,7 +1136,7 @@ static void *rwrap_load_lib_handle(enum rwrap_lib lib)
return handle;
}
-static void *_rwrap_load_lib_function(enum rwrap_lib lib, const char *fn_name)
+static void *_rwrap_bind_symbol(enum rwrap_lib lib, const char *fn_name)
{
void *handle;
void *func;
@@ -1140,10 +1157,16 @@ static void *_rwrap_load_lib_function(enum rwrap_lib lib, const char *fn_name)
return func;
}
-#define rwrap_load_lib_function(lib, fn_name) \
- if (rwrap.fns.libc_##fn_name == NULL) { \
- *(void **) (&rwrap.fns.libc_##fn_name) = \
- _rwrap_load_lib_function(lib, #fn_name); \
+#define rwrap_bind_symbol_libc(sym_name) \
+ if (rwrap.libc.symbols._libc_##sym_name.obj == NULL) { \
+ rwrap.libc.symbols._libc_##sym_name.obj = \
+ _rwrap_bind_symbol(RWRAP_LIBC, #sym_name); \
+ }
+
+#define rwrap_bind_symbol_libresolv(sym_name) \
+ if (rwrap.libresolv.symbols._libc_##sym_name.obj == NULL) { \
+ rwrap.libresolv.symbols._libc_##sym_name.obj = \
+ _rwrap_bind_symbol(RWRAP_LIBRESOLV, #sym_name); \
}
/*
@@ -1154,36 +1177,25 @@ static void *_rwrap_load_lib_function(enum rwrap_lib lib, const char *fn_name)
* has probably something todo with with the linker.
* So we need load each function at the point it is called the first time.
*/
-#if 0
-static int libc_res_init(void)
-{
-#if defined(HAVE_RES_INIT)
- rwrap_load_lib_function(RWRAP_LIBRESOLV, res_init);
-
- return rwrap.fns.libc_res_init();
-#elif defined(HAVE___RES_INIT)
- rwrap_load_lib_function(RWRAP_LIBRESOLV, __res_init);
-
- return rwrap.fns.libc___res_init();
-#endif
-}
-#endif
static int libc_res_ninit(struct __res_state *state)
{
-#if defined(HAVE_RES_NINIT)
+#if !defined(res_ninit) && defined(HAVE_RES_NINIT)
#if defined(HAVE_RES_NINIT_IN_LIBRESOLV)
- rwrap_load_lib_function(RWRAP_LIBRESOLV, res_ninit);
+ rwrap_bind_symbol_libresolv(res_ninit);
+
+ return rwrap.libresolv.symbols._libc_res_ninit.f(state);
#else /* HAVE_RES_NINIT_IN_LIBRESOLV */
- rwrap_load_lib_function(RWRAP_LIBC, res_ninit);
+ rwrap_bind_symbol_libc(res_ninit);
+
+ return rwrap.libc.symbols._libc_res_ninit.f(state);
#endif /* HAVE_RES_NINIT_IN_LIBRESOLV */
- return rwrap.fns.libc_res_ninit(state);
#elif defined(HAVE___RES_NINIT)
- rwrap_load_lib_function(RWRAP_LIBC, __res_ninit);
+ rwrap_bind_symbol_libc(__res_ninit);
- return rwrap.fns.libc___res_ninit(state);
+ return rwrap.libc.symbols._libc___res_ninit.f(state);
#else
#error "No res_ninit function"
#endif
@@ -1191,19 +1203,24 @@ static int libc_res_ninit(struct __res_state *state)
static void libc_res_nclose(struct __res_state *state)
{
-#if defined(HAVE_RES_NCLOSE)
+#if !defined(res_close) && defined(HAVE_RES_NCLOSE)
#if defined(HAVE_RES_NCLOSE_IN_LIBRESOLV)
- rwrap_load_lib_function(RWRAP_LIBRESOLV, res_nclose);
+ rwrap_bind_symbol_libresolv(res_nclose);
+
+ rwrap.libresolv.symbols._libc_res_nclose.f(state);
+ return;
#else /* HAVE_RES_NCLOSE_IN_LIBRESOLV */
- rwrap_load_lib_function(RWRAP_LIBC, res_nclose);
+ rwrap_bind_symbol_libc(res_nclose);
+
+ rwrap.libc.symbols._libc_res_nclose.f(state);
+ return;
#endif /* HAVE_RES_NCLOSE_IN_LIBRESOLV */
- rwrap.fns.libc_res_nclose(state);
#elif defined(HAVE___RES_NCLOSE)
- rwrap_load_lib_function(RWRAP_LIBC, __res_nclose);
+ rwrap_bind_symbol_libc(__res_nclose);
- rwrap.fns.libc___res_nclose(state);
+ rwrap.libc.symbols._libc___res_nclose.f(state);
#else
#error "No res_nclose function"
#endif
@@ -1216,24 +1233,24 @@ static int libc_res_nquery(struct __res_state *state,
unsigned char *answer,
int anslen)
{
-#if defined(HAVE_RES_NQUERY)
- rwrap_load_lib_function(RWRAP_LIBRESOLV, res_nquery);
-
- return rwrap.fns.libc_res_nquery(state,
- dname,
- class,
- type,
- answer,
- anslen);
+#if !defined(res_nquery) && defined(HAVE_RES_NQUERY)
+ rwrap_bind_symbol_libresolv(res_nquery);
+
+ return rwrap.libresolv.symbols._libc_res_nquery.f(state,
+ dname,
+ class,
+ type,
+ answer,
+ anslen);
#elif defined(HAVE___RES_NQUERY)
- rwrap_load_lib_function(RWRAP_LIBRESOLV, __res_nquery);
-
- return rwrap.fns.libc___res_nquery(state,
- dname,
- class,
- type,
- answer,
- anslen);
+ rwrap_bind_symbol_libresolv(__res_nquery);
+
+ return rwrap.libresolv.symbols._libc___res_nquery.f(state,
+ dname,
+ class,
+ type,
+ answer,
+ anslen);
#else
#error "No res_nquery function"
#endif
@@ -1246,24 +1263,24 @@ static int libc_res_nsearch(struct __res_state *state,
unsigned char *answer,
int anslen)
{
-#if defined(HAVE_RES_NSEARCH)
- rwrap_load_lib_function(RWRAP_LIBRESOLV, res_nsearch);
-
- return rwrap.fns.libc_res_nsearch(state,
- dname,
- class,
- type,
- answer,
- anslen);
+#if !defined(res_nsearch) && defined(HAVE_RES_NSEARCH)
+ rwrap_bind_symbol_libresolv(res_nsearch);
+
+ return rwrap.libresolv.symbols._libc_res_nsearch.f(state,
+ dname,
+ class,
+ type,
+ answer,
+ anslen);
#elif defined(HAVE___RES_NSEARCH)
- rwrap_load_lib_function(RWRAP_LIBRESOLV, __res_nsearch);
-
- return rwrap.fns.libc___res_nsearch(state,
- dname,
- class,
- type,
- answer,
- anslen);
+ rwrap_bind_symbol_libresolv(__res_nsearch);
+
+ return rwrap.libresolv.symbols._libc___res_nsearch.f(state,
+ dname,
+ class,
+ type,
+ answer,
+ anslen);
#else
#error "No res_nsearch function"
#endif
@@ -1418,7 +1435,7 @@ static int rwrap_res_ninit(struct __res_state *state)
return rc;
}
-#if defined(HAVE_RES_NINIT)
+#if !defined(res_ninit) && defined(HAVE_RES_NINIT)
int res_ninit(struct __res_state *state)
#elif defined(HAVE___RES_NINIT)
int __res_ninit(struct __res_state *state)
@@ -1442,7 +1459,7 @@ static int rwrap_res_init(void)
return rc;
}
-#if defined(HAVE_RES_INIT)
+#if !defined(res_ninit) && defined(HAVE_RES_INIT)
int res_init(void)
#elif defined(HAVE___RES_INIT)
int __res_init(void)
@@ -1472,7 +1489,7 @@ static void rwrap_res_nclose(struct __res_state *state)
#endif
}
-#if defined(HAVE_RES_NCLOSE)
+#if !defined(res_nclose) && defined(HAVE_RES_NCLOSE)
void res_nclose(struct __res_state *state)
#elif defined(HAVE___RES_NCLOSE)
void __res_nclose(struct __res_state *state)
@@ -1545,7 +1562,7 @@ static int rwrap_res_nquery(struct __res_state *state,
return rc;
}
-#if defined(HAVE_RES_NQUERY)
+#if !defined(res_nquery) && defined(HAVE_RES_NQUERY)
int res_nquery(struct __res_state *state,
const char *dname,
int class,
@@ -1591,7 +1608,7 @@ static int rwrap_res_query(const char *dname,
return rc;
}
-#if defined(HAVE_RES_QUERY)
+#if !defined(res_query) && defined(HAVE_RES_QUERY)
int res_query(const char *dname,
int class,
int type,
@@ -1653,7 +1670,7 @@ static int rwrap_res_nsearch(struct __res_state *state,
return rc;
}
-#if defined(HAVE_RES_NSEARCH)
+#if !defined(res_nsearch) && defined(HAVE_RES_NSEARCH)
int res_nsearch(struct __res_state *state,
const char *dname,
int class,
@@ -1699,7 +1716,7 @@ static int rwrap_res_search(const char *dname,
return rc;
}
-#if defined(HAVE_RES_SEARCH)
+#if !defined(res_search) && defined(HAVE_RES_SEARCH)
int res_search(const char *dname,
int class,
int type,
diff --git a/tests/test_dns_fake.c b/tests/test_dns_fake.c
index 527ea71..9bc92cd 100644
--- a/tests/test_dns_fake.c
+++ b/tests/test_dns_fake.c
@@ -563,21 +563,21 @@ int main(void)
{
int rc;
- const UnitTest tests[] = {
- unit_test(test_res_fake_a_query),
- unit_test(test_res_fake_a_query_case_insensitive),
- unit_test(test_res_fake_a_query_trailing_dot),
- unit_test(test_res_fake_a_query_notfound),
- unit_test(test_res_fake_aaaa_query),
- unit_test(test_res_fake_aaaa_query_notfound),
- unit_test(test_res_fake_srv_query),
- unit_test(test_res_fake_srv_query_minimal),
- unit_test(test_res_fake_soa_query),
- unit_test(test_res_fake_cname_query),
- unit_test(test_res_fake_a_via_cname),
+ const struct CMUnitTest fake_tests[] = {
+ cmocka_unit_test(test_res_fake_a_query),
+ cmocka_unit_test(test_res_fake_a_query_case_insensitive),
+ cmocka_unit_test(test_res_fake_a_query_trailing_dot),
+ cmocka_unit_test(test_res_fake_a_query_notfound),
+ cmocka_unit_test(test_res_fake_aaaa_query),
+ cmocka_unit_test(test_res_fake_aaaa_query_notfound),
+ cmocka_unit_test(test_res_fake_srv_query),
+ cmocka_unit_test(test_res_fake_srv_query_minimal),
+ cmocka_unit_test(test_res_fake_soa_query),
+ cmocka_unit_test(test_res_fake_cname_query),
+ cmocka_unit_test(test_res_fake_a_via_cname),
};
- rc = run_tests(tests);
+ rc = cmocka_run_group_tests(fake_tests, NULL, NULL);
return rc;
}
diff --git a/tests/test_real_res_query.c b/tests/test_real_res_query.c
index 9c8132a..04ade89 100644
--- a/tests/test_real_res_query.c
+++ b/tests/test_real_res_query.c
@@ -189,12 +189,12 @@ int main(void)
{
int rc;
- const UnitTest tests[] = {
- unit_test(test_res_query_a_record),
- unit_test(test_res_query_srv_record),
+ const struct CMUnitTest real_tests[] = {
+ cmocka_unit_test(test_res_query_a_record),
+ cmocka_unit_test(test_res_query_srv_record),
};
- rc = run_tests(tests);
+ rc = cmocka_run_group_tests(real_tests, NULL, NULL);
return rc;
}
diff --git a/tests/test_res_init.c b/tests/test_res_init.c
index e42b8a4..5cd3591 100644
--- a/tests/test_res_init.c
+++ b/tests/test_res_init.c
@@ -23,7 +23,7 @@ struct resolv_conf_test_state {
char *resolv_conf_path;
};
-static void setup(void **state)
+static int setup(void **state)
{
struct resolv_conf_test_state *test_state;
@@ -40,15 +40,17 @@ static void setup(void **state)
assert_non_null(test_state->resolv_conf);
*state = test_state;
+
+ return 0;
}
-static void teardown(void **state)
+static int teardown(void **state)
{
struct resolv_conf_test_state *test_state;
test_state = (struct resolv_conf_test_state *) *state;
- if (test_state == NULL) return;
+ if (test_state == NULL) return -1;
if (test_state->resolv_conf) {
fclose(test_state->resolv_conf);
@@ -64,6 +66,8 @@ static void teardown(void **state)
}
free(test_state);
+
--
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