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udhcp: trivial shrink

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function                                             old     new   delta
dname_dec                                            337     332      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-02-26 14:56:18 +01:00
parent 5fa9fefddc
commit 5bec08cebd
1 changed files with 3 additions and 4 deletions
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7
networking/udhcp/domain_codec.c
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@ -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;