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openssl: silence compiler warning when not using IPv6

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In non-IPv6 builds the conn parameter is unused, and compilers which
run with "-Werror=unused-parameter" (or similar) warnings turned on
fails to build. Below is an excerpt from a CI job:

  vtls/openssl.c: In function ‘Curl_ossl_verifyhost’:
  vtls/openssl.c:2016:75: error: unused parameter ‘conn’ [-Werror=unused-parameter]
   2016 | CURLcode Curl_ossl_verifyhost(struct Curl_easy *data, struct connectdata *conn,
        |                                                       ~~~~~~~~~~~~~~~~~~~~^~~~

Closes: #9970
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
This commit is contained in:
Daniel Gustafsson 2022-11-23 12:10:30 +01:00
parent 2d9fee4504
commit 3ae63a121d
1 changed files with 5 additions and 0 deletions
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5
lib/vtls/openssl.c
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@ -2035,6 +2035,11 @@ CURLcode Curl_ossl_verifyhost(struct Curl_easy *data, struct connectdata *conn,
Curl_conn_get_host(data, FIRSTSOCKET, &hostname, &dispname, &port);
hostlen = strlen(hostname);
#ifndef ENABLE_IPV6
/* Silence compiler warnings for unused params */
(void) conn;
#endif
#ifdef ENABLE_IPV6
if(conn->bits.ipv6_ip &&
Curl_inet_pton(AF_INET6, hostname, &addr)) {