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sys/net/sock_util: don't request AF in DNS which is not enabled

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This commit is contained in:
Benjamin Valentin 2022-03-29 10:44:22 +02:00
parent 4f6ca0797b
commit 79f0354608
1 changed files with 17 additions and 1 deletions
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18
sys/net/sock/sock_util.c
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@ -265,6 +265,7 @@ int sock_tl_name2ep(struct _sock_tl_ep *ep_out, const char *str)
}
#if defined(MODULE_SOCK_DNS)
int family;
char hostbuf[CONFIG_SOCK_HOSTPORT_MAXLEN];
const char *host;
char *hostend = strchr(str, ':');
@ -282,13 +283,28 @@ int sock_tl_name2ep(struct _sock_tl_ep *ep_out, const char *str)
ep_out->port = atoi(hostend + 1);;
}
switch (sock_dns_query(host, &ep_out->addr, AF_UNSPEC)) {
if (IS_ACTIVE(SOCK_HAS_IPV4) && IS_ACTIVE(SOCK_HAS_IPV6)) {
family = AF_UNSPEC;
} else if (IS_ACTIVE(SOCK_HAS_IPV4)) {
family = AF_INET;
} else if (IS_ACTIVE(SOCK_HAS_IPV6)) {
family = AF_INET6;
} else {
assert(0);
return -EINVAL;
}
switch (sock_dns_query(host, &ep_out->addr, family)) {
#ifdef SOCK_HAS_IPV4
case 4:
ep_out->family = AF_INET;
return 0;
#endif
#ifdef SOCK_HAS_IPV6
case 16:
ep_out->family = AF_INET6;
return 0;
#endif
default:
return -EINVAL;
}