tree-wide: refuse too long strings earlier in specifier_printf()

We usually call specifier_printf() and then check the validity of
the result. In many cases, validity checkers, e.g. path_is_valid(),
refuse too long strings. This makes specifier_printf() refuse such
long results earlier.

Moreover, unit_full_string() and description field in sysuser now
refuse results longer than LONG_LINE_MAX. config_parse() already
refuses the line longer than LONG_LINE_MAX. Hence, it should be ok
to set the same value as the maximum length of the resolved string.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/resolve/resolved-dnssd.c b/src/resolve/resolved-dnssd.c
index aed9c5c1cd..1c7f16c4d2 100644
--- a/src/resolve/resolved-dnssd.c
+++ b/src/resolve/resolved-dnssd.c
@@ -170,7 +170,7 @@ int dnssd_render_instance_name(DnssdService *s, char **ret_name) {
         assert(s);
         assert(s->name_template);
 
-        r = specifier_printf(s->name_template, specifier_table, s, &name);
+        r = specifier_printf(s->name_template, DNS_LABEL_MAX, specifier_table, s, &name);
         if (r < 0)
                 return log_debug_errno(r, "Failed to replace specifiers: %m");