warning: 'sprintf' is deprecated

[Shebuka]

Using Xcode 14.0.1 with Apple clang version 14.0.0 (clang-1400.0.29.102) I get this deprecation warning:

asio/ip/impl/network_v6.ipp:104:3: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]

This points to sprintf(prefix_len, "/%u", prefix_length_);. Because prefix_len is a char prefix_len[16]; the fix for this is quite simple, replace the line with with snprintf(prefix_len, 16, "/%u", prefix_length_);

similar warning in other places:

asio/ip/impl/network_v4.ipp:135:3: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]

asio/detail/impl/socket_ops.ipp:2522:7: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]