static void test_readlink_and_make_absolute(void) { char tempdir[] = "/tmp/test-readlink_and_make_absolute"; char name[] = "/tmp/test-readlink_and_make_absolute/original"; char name2[] = "test-readlink_and_make_absolute/original"; char name_alias[] = "/tmp/test-readlink_and_make_absolute-alias"; char *r = NULL; assert_se(mkdir_safe(tempdir, 0755, getuid(), getgid()) >= 0); assert_se(touch(name) >= 0); assert_se(symlink(name, name_alias) >= 0); assert_se(readlink_and_make_absolute(name_alias, &r) >= 0); assert_se(streq(r, name)); free(r); assert_se(unlink(name_alias) >= 0); assert_se(chdir(tempdir) >= 0); assert_se(symlink(name2, name_alias) >= 0); assert_se(readlink_and_make_absolute(name_alias, &r) >= 0); assert_se(streq(r, name)); free(r); assert_se(unlink(name_alias) >= 0); assert_se(rm_rf(tempdir, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0); }
const char* get_testdata_dir(const char *suffix) { const char *env; /* convenience: caller does not need to free result */ static char testdir[PATH_MAX]; /* if the env var is set, use that */ env = getenv("SYSTEMD_TEST_DATA"); testdir[sizeof(testdir) - 1] = '\0'; if (env) { if (access(env, F_OK) < 0) { fputs("ERROR: $SYSTEMD_TEST_DATA directory does not exist\n", stderr); exit(1); } strncpy(testdir, env, sizeof(testdir) - 1); } else { _cleanup_free_ char *exedir = NULL; assert_se(readlink_and_make_absolute("/proc/self/exe", &exedir) >= 0); /* Check if we're running from the builddir. If so, use the compiled in path. */ if (path_startswith(exedir, ABS_BUILD_DIR)) assert_se(snprintf(testdir, sizeof(testdir), "%s/test", ABS_SRC_DIR) > 0); else /* Try relative path, according to the install-test layout */ assert_se(snprintf(testdir, sizeof(testdir), "%s/testdata", dirname(exedir)) > 0); /* test this without the suffix, as it may contain a glob */ if (access(testdir, F_OK) < 0) { fputs("ERROR: Cannot find testdata directory, set $SYSTEMD_TEST_DATA\n", stderr); exit(1); } } strncpy(testdir + strlen(testdir), suffix, sizeof(testdir) - strlen(testdir) - 1); return testdir; }