OpenSSL deprecation warnings with -DIOTC_USE_PAHO=ON

[nmatthews-witekio]

/witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.c: In function ‘WebSocket_upgrade’: /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.c:1329:17: warning: ‘SHA1_Init’ is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] 1329 | SHA1_Init( &ctx ); | ^~~~~ In file included from /usr/include/openssl/x509.h:41, from /usr/include/openssl/ssl.h:31, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/SSLSocket.h:29, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/MQTTPacket.h:26, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.h:20, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.c:30: /usr/include/openssl/sha.h:49:27: note: declared here 49 | OSSL_DEPRECATEDIN_3_0 int SHA1_Init(SHA_CTX c); | ^~~~~ /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.c:1330:17: warning: ‘SHA1_Update’ is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] 1330 | SHA1_Update( &ctx, ws_key, strlen(ws_key)); | ^~~ In file included from /usr/include/openssl/x509.h:41, from /usr/include/openssl/ssl.h:31, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/SSLSocket.h:29, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/MQTTPacket.h:26, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.h:20, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.c:30: /usr/include/openssl/sha.h:50:27: note: declared here 50 | OSSL_DEPRECATEDIN_3_0 int SHA1_Update(SHA_CTX c, const void data, size_t len); | ^~~ /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.c:1331:17: warning: ‘SHA1_Final’ is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] 1331 | SHA1_Final( sha_hash, &ctx ); | ^~~~~~ In file included from /usr/include/openssl/x509.h:41, from /usr/include/openssl/ssl.h:31, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/SSLSocket.h:29, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/MQTTPacket.h:26, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.h:20, from /witekio/work/iotconnect/github/public/iotc-generic-c-sdk/lib/paho.mqtt.c/src/WebSocket.c:30: /usr/include/openssl/sha.h:51:27: note: declared here 51 | OSSL_DEPRECATEDIN_3_0 int SHA1_Final(unsigned char md, SHA_CTX *c); | ^~~~~~

[nmatthews-witekio]

Unfortunately, upgrading in https://github.com/avnet-iotconnect/iotc-generic-c-sdk/pull/33 doesn't solve this.

[nik-markovic]

Closing as the Protocol 1.0 branch is in maintenance mode now, so we will only address critical bugs and features.