shared/specifier: fix %u/%U/%g/%G when called as unprivileged user

[thirdparty/systemd.git] / src / test / test-specifier.c

diff --git a/src/test/test-specifier.c b/src/test/test-specifier.c
index 9c7c352b5155fd295b623c7f3a9b4e6b92003467..947a32acf75ba46e3dcfd78bc0ce07206ba0e6d2 100644 (file)
--- a/src/test/test-specifier.c
+++ b/src/test/test-specifier.c
@@ -1,10 +1,14 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "alloc-util.h"
 #include "log.h"
 #include "specifier.h"
+#include "stat-util.h"
+#include "stdio-util.h"
 #include "string-util.h"
 #include "strv.h"
+#include "tests.h"
+#include "unit-file.h"
 
 static void test_specifier_escape_one(const char *a, const char *b) {
         _cleanup_free_ char *x = NULL;
@@ -13,7 +17,7 @@ static void test_specifier_escape_one(const char *a, const char *b) {
         assert_se(streq_ptr(x, b));
 }
 
-static void test_specifier_escape(void) {
+TEST(specifier_escape) {
         test_specifier_escape_one(NULL, NULL);
         test_specifier_escape_one("", "");
         test_specifier_escape_one("%", "%%");
@@ -29,20 +33,124 @@ static void test_specifier_escape_strv_one(char **a, char **b) {
         assert_se(strv_equal(x, b));
 }
 
-static void test_specifier_escape_strv(void) {
+TEST(specifier_escape_strv) {
         test_specifier_escape_strv_one(NULL, NULL);
         test_specifier_escape_strv_one(STRV_MAKE(NULL), STRV_MAKE(NULL));
         test_specifier_escape_strv_one(STRV_MAKE(""), STRV_MAKE(""));
         test_specifier_escape_strv_one(STRV_MAKE("foo"), STRV_MAKE("foo"));
         test_specifier_escape_strv_one(STRV_MAKE("%"), STRV_MAKE("%%"));
-        test_specifier_escape_strv_one(STRV_MAKE("foo", "%", "foo%", "%foo", "foo%foo", "quux", "%%%"), STRV_MAKE("foo", "%%", "foo%%", "%%foo", "foo%%foo", "quux", "%%%%%%"));
+        test_specifier_escape_strv_one(STRV_MAKE("foo", "%", "foo%", "%foo", "foo%foo", "quux", "%%%"),
+                                       STRV_MAKE("foo", "%%", "foo%%", "%%foo", "foo%%foo", "quux", "%%%%%%"));
 }
 
-int main(int argc, char *argv[]) {
-        log_set_max_level(LOG_DEBUG);
+/* Any specifier functions which don't need an argument. */
+static const Specifier specifier_table[] = {
+        COMMON_SYSTEM_SPECIFIERS,
 
-        test_specifier_escape();
-        test_specifier_escape_strv();
+        COMMON_CREDS_SPECIFIERS(UNIT_FILE_USER),
+        { 'h', specifier_user_home,       NULL },
 
-        return 0;
+        COMMON_TMP_SPECIFIERS,
+        {}
+};
+
+TEST(specifier_printf) {
+        static const Specifier table[] = {
+                { 'X', specifier_string,         (char*) "AAAA" },
+                { 'Y', specifier_string,         (char*) "BBBB" },
+                { 'e', specifier_string,         NULL           },
+                COMMON_SYSTEM_SPECIFIERS,
+                {}
+        };
+
+        _cleanup_free_ char *w = NULL;
+        int r;
+
+        r = specifier_printf("xxx a=%X b=%Y e=%e yyy", SIZE_MAX, table, NULL, NULL, &w);
+        assert_se(r >= 0);
+        assert_se(w);
+
+        puts(w);
+        assert_se(streq(w, "xxx a=AAAA b=BBBB e= yyy"));
+
+        free(w);
+        r = specifier_printf("machine=%m, boot=%b, host=%H, pretty=%R, version=%v, arch=%a, empty=%e", SIZE_MAX, table, NULL, NULL, &w);
+        assert_se(r >= 0);
+        assert_se(w);
+        puts(w);
+
+        w = mfree(w);
+        specifier_printf("os=%o, os-version=%w, build=%B, variant=%W, empty=%e%e%e", SIZE_MAX, table, NULL, NULL, &w);
+        if (w)
+                puts(w);
+}
+
+TEST(specifier_real_path) {
+        static const Specifier table[] = {
+                { 'p', specifier_string,         "/dev/initctl" },
+                { 'y', specifier_real_path,      "/dev/initctl" },
+                { 'Y', specifier_real_directory, "/dev/initctl" },
+                { 'w', specifier_real_path,      "/dev/tty" },
+                { 'W', specifier_real_directory, "/dev/tty" },
+                {}
+        };
+
+        _cleanup_free_ char *w = NULL;
+        int r;
+
+        r = specifier_printf("p=%p y=%y Y=%Y w=%w W=%W", SIZE_MAX, table, NULL, NULL, &w);
+        assert_se(r >= 0 || r == -ENOENT);
+        assert_se(w || r == -ENOENT);
+        puts(strnull(w));
+
+        /* /dev/initctl should normally be a symlink to /run/initctl */
+        if (files_same("/dev/initctl", "/run/initctl", 0) > 0)
+                assert_se(streq(w, "p=/dev/initctl y=/run/initctl Y=/run w=/dev/tty W=/dev"));
 }
+
+TEST(specifier_real_path_missing_file) {
+        static const Specifier table[] = {
+                { 'p', specifier_string,         "/dev/-no-such-file--" },
+                { 'y', specifier_real_path,      "/dev/-no-such-file--" },
+                { 'Y', specifier_real_directory, "/dev/-no-such-file--" },
+                {}
+        };
+
+        _cleanup_free_ char *w = NULL;
+        int r;
+
+        r = specifier_printf("p=%p y=%y", SIZE_MAX, table, NULL, NULL, &w);
+        assert_se(r == -ENOENT);
+
+        r = specifier_printf("p=%p Y=%Y", SIZE_MAX, table, NULL, NULL, &w);
+        assert_se(r == -ENOENT);
+}
+
+TEST(specifiers) {
+        for (const Specifier *s = specifier_table; s->specifier; s++) {
+                char spec[3];
+                _cleanup_free_ char *resolved = NULL;
+
+                xsprintf(spec, "%%%c", s->specifier);
+
+                assert_se(specifier_printf(spec, SIZE_MAX, specifier_table, NULL, NULL, &resolved) >= 0);
+
+                log_info("%%%c → %s", s->specifier, resolved);
+        }
+}
+
+TEST(specifiers_missing_data_ok) {
+        _cleanup_free_ char *resolved = NULL;
+
+        assert_se(setenv("SYSTEMD_OS_RELEASE", "/dev/null", 1) == 0);
+        assert_se(specifier_printf("%A-%B-%M-%o-%w-%W", SIZE_MAX, specifier_table, NULL, NULL, &resolved) >= 0);
+        assert_se(streq(resolved, "-----"));
+
+        assert_se(setenv("SYSTEMD_OS_RELEASE", "/nosuchfileordirectory", 1) == 0);
+        assert_se(specifier_printf("%A-%B-%M-%o-%w-%W", SIZE_MAX, specifier_table, NULL, NULL, &resolved) == -EUNATCH);
+        assert_se(streq(resolved, "-----"));
+
+        assert_se(unsetenv("SYSTEMD_OS_RELEASE") == 0);
+}
+
+DEFINE_TEST_MAIN(LOG_DEBUG);