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-rw-r--r--src/shared/dns-domain.c18
1 files changed, 5 insertions, 13 deletions
diff --git a/src/shared/dns-domain.c b/src/shared/dns-domain.c
index 68404ca9e5..3848a0518d 100644
--- a/src/shared/dns-domain.c
+++ b/src/shared/dns-domain.c
@@ -913,19 +913,11 @@ int dns_name_to_wire_format(const char *domain, uint8_t *buffer, size_t len, boo
if (r < 0)
return r;
- if (canonical) {
- size_t i;
-
- /* Optionally, output the name in DNSSEC
- * canonical format, as described in RFC 4034,
- * section 6.2. Or in other words: in
- * lower-case. */
-
- for (i = 0; i < (size_t) r; i++) {
- if (out[i] >= 'A' && out[i] <= 'Z')
- out[i] = out[i] - 'A' + 'a';
- }
- }
+ /* Optionally, output the name in DNSSEC canonical
+ * format, as described in RFC 4034, section 6.2. Or
+ * in other words: in lower-case. */
+ if (canonical)
+ ascii_strlower_n((char*) out, (size_t) r);
/* Fill label length, move forward */
*label_length = r;