zip_open fails to open zip using UNC(\\server\folder\file.zip) path.

[nachiket273]

I have one CIFS share accessible from my windows machine. The share contains a zip file. Path to this zip file (\server_ip\share\file.zip) is read from database and used in zip_open.

int err = 0;
zip_t *myzip = zip_open("\\server_ip\share\file.zip",  ZIP_RDONLY,  &err);

zip_open fails for the UNC path, but the same code works well when I use local filesystem path (D:\folder\file.zip). I have verified that share has enough space and all the required permissions.

[0-wiz-0]

We have no Windows expertise, so help is welcome.
Reading https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#maximum-path-length-limitation my guess is that your file name is too long. There is a magical prefix you can add to the file name to increate this.
What is the actual error you see?

[arsnyder16]

Could be a same as #382. FILE_ATTRIBUTE_REPARSE_POINT

@nachiket273 could you try libzip <= 1.6.1