sss_sifp: make it compatible with latest version of the infopipe Current version of infopipe leverage different interfaces and object paths which were not accessible through the simple ifp library. This patch changes the API, which is ok since it was never declared as a public library and beside deprecated openlmi there are no known users. We will use this in sssctl tool. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

TESTS: Fix warnings -Wshadow src/tests/cmocka/test_sss_sifp.c: In function 'test_sss_sifp_strdup_valid': src/tests/cmocka/test_sss_sifp.c:153: warning: declaration of 'dup' shadows a global declaration /usr/include/unistd.h:528: warning: shadowed declaration is here src/tests/cmocka/test_sss_sifp.c: In function 'test_sss_sifp_strdup_null': src/tests/cmocka/test_sss_sifp.c:163: warning: declaration of 'dup' shadows a global declaration /usr/include/unistd.h:528: warning: shadowed declaration is here src/tests/cmocka/test_sdap.c: In function '__wrap_ldap_next_attribute': src/tests/cmocka/test_sdap.c:203: warning: declaration of 'index' shadows a global declaration /usr/include/string.h:489: warning: shadowed declaration is here src/tests/cmocka/test_responder_cache_req.c: In function 'prepare_user': src/tests/cmocka/test_responder_cache_req.c:163: warning: declaration of 'time' shadows a global declaration /usr/include/time.h:186: warning: shadowed declaration is here src/tests/cmocka/test_responder_cache_req.c: In function 'prepare_group': src/tests/cmocka/test_responder_cache_req.c:244: warning: declaration of 'time' shadows a global declaration /usr/include/time.h:186: warning: shadowed declaration is here Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

tests: convert all unit tests to cmocka 1.0 or later All tests now use the cmocka-1.0-compatible API. Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

sss_sifp: set output parameters if attribute is NULL There are two cases that may happen when a user calls Get or GetAll: 1) the attribute is missing 2) the attribute is empty sss_sifp has two error code to distinguish between those two cases: 1) SSS_SIFP_ATTR_MISSING 2) SSS_SIFP_ATTR_NULL Usually the caller is not interested on situations when the attribute is empty and it can be considered as error. Having it as a separate error code instead of setting the output value to NULL is necesarry since attribute does not have to be a pointer. This patch however sets pointer type attributes to NULL since it may simplify the code path when the caller is actually interested in this information (e. g. empty server list on domain objects). It is not possible to send a NULL string over a D-Bus nor it is possible to have hash table NULL with current code so these two scenarios are not tested. However, it is handled in sss_sifp_attr code for completeness. Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

sss_sifp test: fix object path array test Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

TOOLS: Always debug to stderr https://fedorahosted.org/sssd/ticket/2348 Programs that are supposed to only be executed on the foreground should log to stderr automatically. Reviewed-by: Michal Židek <mzidek@redhat.com>

sss_sifp: add shortcuts for common use cases https://fedorahosted.org/sssd/ticket/2254 Reviewed-by: Sumit Bose <sbose@redhat.com>

sss_sifp: add support for string dictionary https://fedorahosted.org/sssd/ticket/2254 Reviewed-by: Sumit Bose <sbose@redhat.com>

sss_sifp: unit tests https://fedorahosted.org/sssd/ticket/2254 Reviewed-by: Sumit Bose <sbose@redhat.com>