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missing external functions in ZIP Virtual File System

I am trying to compile zvfs.c here but it gives me error when linking, that the following functions are unresolved external symbols

error LNK2001: unresolved external symbol _zp_init_keys
.........................................._zp_update_keys
.........................................._zp_decrypt_byte
.........................................._getPwdKey
.........................................._crc_32_tab

I am compiling it in windows Visual Studio. does anyone know please which library contains these functions. I can't find it anywhere.

Solution

  • Those symbols are only asked for if ZIPVFSCRYPT is defined — it requires manual source changes to make that happen — and that should only be defined if you supply a cryptography module. I believe that's a commercial product only; we don't have the source to that.