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-rw-r--r--networking/udhcp/domain_codec.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/networking/udhcp/domain_codec.c b/networking/udhcp/domain_codec.c
index c1325d8..05cdf51 100644
--- a/networking/udhcp/domain_codec.c
+++ b/networking/udhcp/domain_codec.c
@@ -42,7 +42,7 @@ char* FAST_FUNC dname_dec(const uint8_t *cstr, int clen, const char *pre)
*/
while (1) {
/* note: "return NULL" below are leak-safe since
- * dst isn't yet allocated */
+ * dst isn't allocated yet */
const uint8_t *c;
unsigned crtpos, retpos, depth, len;
@@ -95,9 +95,8 @@ char* FAST_FUNC dname_dec(const uint8_t *cstr, int clen, const char *pre)
if (!dst) { /* first pass? */
/* allocate dst buffer and copy pre */
unsigned plen = strlen(pre);
- ret = dst = xmalloc(plen + len);
- memcpy(dst, pre, plen);
- dst += plen;
+ ret = xmalloc(plen + len);
+ dst = stpcpy(ret, pre);
} else {
dst[len - 1] = '\0';
break;