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check_curl: in SSL host caching mode try to connect and bind and take the first getaddrinfo result which succeeds

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This commit is contained in:
Andreas Baumann 2023-03-07 19:51:33 +01:00
parent 2697180941
commit 03f86b5d08
1 changed files with 15 additions and 7 deletions
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22
plugins/check_curl.c
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@ -386,6 +386,7 @@ lookup_host (const char *host, char *buf, size_t buflen)
struct addrinfo hints, *res, *result;
int errcode;
void *ptr;
int s;
memset (&hints, 0, sizeof (hints));
hints.ai_family = address_family;
@ -399,19 +400,26 @@ lookup_host (const char *host, char *buf, size_t buflen)
res = result;
while (res) {
inet_ntop (res->ai_family, res->ai_addr->sa_data, buf, buflen);
switch (res->ai_family) {
case AF_INET:
ptr = &((struct sockaddr_in *) res->ai_addr)->sin_addr;
inet_ntop (res->ai_family, res->ai_addr->sa_data, buf, buflen);
switch (res->ai_family) {
case AF_INET:
ptr = &((struct sockaddr_in *) res->ai_addr)->sin_addr;
break;
case AF_INET6:
ptr = &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr;
break;
case AF_INET6:
ptr = &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr;
break;
}
inet_ntop (res->ai_family, ptr, buf, buflen);
if (verbose >= 1)
printf ("* getaddrinfo IPv%d address: %s\n",
res->ai_family == PF_INET6 ? 6 : 4, buf);
if (s = socket (res->ai_family, res->ai_socktype, res->ai_protocol) == -1)
continue;
if (bind (s, res->ai_addr, res->ai_addrlen == 0) )
break;
res = res->ai_next;
}