test-unit-file: add test for improperly escaped exec string

Add a regression test for the recent breakage of handling improperly
escaped exec strings in unit files.

Code contributed by Martin Pitt:

  https://bugs.freedesktop.org/show_bug.cgi?id=90794

diff --git a/src/test/test-unit-file.c b/src/test/test-unit-file.c
index a9711ac..31b12d5 100644 (file)
--- a/src/test/test-unit-file.c
+++ b/src/test/test-unit-file.c
@@ -225,6 +225,15 @@ static void test_config_parse_exec(void) {
         check_execcommand(c1,
                           "/sbin/find", NULL, ";", "x", false);
 
+        log_info("/* encoded semicolon */");
+        r = config_parse_exec(NULL, "fake", 5, "section", 1,
+                              "LValue", 0,
+                              "/bin/find \\073",
+                              &c, NULL);
+        assert_se(r >= 0);
+        c1 = c1->command_next;
+        check_execcommand(c1, "/bin/find", NULL, "\\073", NULL, false);
+
         log_info("/* spaces in the filename */");
         r = config_parse_exec(NULL, "fake", 5, "section", 1,
                               "LValue", 0,
@@ -296,6 +305,16 @@ static void test_config_parse_exec(void) {
         c1 = c1->command_next;
         check_execcommand(c1, "/path ", NULL, NULL, NULL, false);
 
+        log_info("/* quoted backslashes */");
+        r = config_parse_exec(NULL, "fake", 5, "section", 1,
+                              "LValue", 0,
+                              "/bin/grep '\\w+\\K'",
+                              &c, NULL);
+        assert_se(r >= 0);
+        c1 = c1->command_next;
+        check_execcommand(c1, "/bin/grep", NULL, "\\w+\\K", NULL, false);
+
+
         log_info("/* trailing backslash: \\ */");
         /* backslash is invalid */
         r = config_parse_exec(NULL, "fake", 4, "section", 1,