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a5fc95b715
All the name strings in ssh_cipher, ssh_mac, ssh_hash, ssh_signkey point to compile-time string literals, hence should obviously be const char *. Most of these const-correctness patches are just a mechanical job of adding a 'const' in the one place you need it right now, and then chasing the implications through the code adding further consts until it compiles. But this one has actually shown up a bug: the 'algorithm' output parameter in ssh2_userkey_loadpub was sometimes returning a pointer to a string literal, and sometimes a pointer to dynamically allocated memory, so callers were forced to either sometimes leak memory or sometimes free a bad thing. Now it's consistently dynamically allocated, and should be freed everywhere too.