struct addrinfo *ai, hint = { .ai_family = AF_INET };
int i;
+ if (!prots) {
+ int r = getservbyname_r(name, "tcp", se, buf, buflen, res);
+ if (r) r = getservbyname_r(name, "udp", se, buf, buflen, res);
+ return r;
+ }
+
/* Align buffer */
i = (uintptr_t)buf & sizeof(char *)-1;
if (!i) i = sizeof(char *);
- if (buflen < 3*sizeof(char *)-i) {
- errno = ERANGE;
- return -1;
- }
+ if (buflen < 3*sizeof(char *)-i)
+ return ERANGE;
buf += sizeof(char *)-i;
buflen -= sizeof(char *)-i;
if (!strcmp(prots, "tcp")) hint.ai_protocol = IPPROTO_TCP;
else if (!strcmp(prots, "udp")) hint.ai_protocol = IPPROTO_UDP;
- else return -1;
+ else return EINVAL;
- if (getaddrinfo(0, name, &hint, &ai) < 0) return -1;
+ switch (getaddrinfo(0, name, &hint, &ai)) {
+ case EAI_MEMORY:
+ case EAI_SYSTEM:
+ return ENOMEM;
+ default:
+ return ENOENT;
+ case 0:
+ break;
+ }
se->s_name = (char *)name;
se->s_aliases = (void *)buf;