Undo changes to file in zip archive
libzip (-lzip)
#include <zip.h>
int
zip_unchange(struct zip *archive, int index);
Changes to the file at position index are reverted.
Upon successful completion 0 is returned. Otherwise, -1 is returned and the error code in archive is set to indicate the error.
zip_unchange() fails if:
[ZIP_ER_EXISTS]
Unchanging the name would result in a duplicate name in the archive.
[ZIP_ER_INVAL]
index is not a valid file index in zip.
Dieter Baron <[email protected]> and Thomas Klausner <[email protected]>