Introduce sc_arg_max() helper

Just a cast and an assert.
2019-05-21 10:57:23 +02:00
parent 77599f06e1
commit 21c491e106
4 changed files with 15 additions and 13 deletions
@@ -72,7 +72,7 @@ bool env_value_is_valid(const char *e) {
         * either. Discounting the shortest possible variable name of
         * length 1, the equal sign and trailing NUL this hence leaves
         * ARG_MAX-3 as longest possible variable value. */
-        if (strlen(e) > (size_t) sysconf(_SC_ARG_MAX) - 3)
+        if (strlen(e) > sc_arg_max() - 3)
                return false;

        return true;
@@ -95,7 +95,7 @@ bool env_assignment_is_valid(const char *e) {
         * be > ARG_MAX, hence the individual variable assignments
         * cannot be either, but let's leave room for one trailing NUL
         * byte. */
-        if (strlen(e) > (size_t) sysconf(_SC_ARG_MAX) - 1)
+        if (strlen(e) > sc_arg_max() - 1)
                return false;

        return true;