03-04-2010
Unzip files without overwriting
Hi,
1)I have two zip files a.zip and b.zip.
a.zip contains the files a.txt,b.txt and c.txt
b.zip contains the files a.txt,b.txt,d.txt,e.txt
Though some of the filenames in a.zip and b.zip are same, the size is different,i.e., the files are completely different even though their name is same.
What my program does is it completely unzips the files and overwrites the existing files without checking the cksum or the size.
Is there anyway we can check the cksum and then overwrite it if it's the duplicate file?
Thanks,
Don
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LEARN ABOUT CENTOS
zip_set_default_password
ZIP_SET_DEFAULT_PASSWORD(3) Library Functions Manual ZIP_SET_DEFAULT_PASSWORD(3)
NAME
zip_set_default_password - set default password for encrypted files in zip
LIBRARY
libzip (-lzip)
SYNOPSIS
#include <zip.h>
int zip_set_default_password(struct zip *archive, const char *password);
DESCRIPTION
The zip_set_default_password function sets the default password used when accessing encrypted files. If password is NULL, the default
password is unset.
If you prefer a different password for single files, use zip_fopen_encrypted(3) instead of zip_fopen(3). Usually, however, the same pass-
word is used for every file in an zip archive.
RETURN VALUES
Upon successful completion 0 is returned. Otherwise, -1 is returned and the error information in archive is set to indicate the error.
ERRORS
zip_set_default_password fails if:
[ZIP_ER_MEMORY]
Required memory could not be allocated.
SEE ALSO
libzip(3), zip_fopen(3), zip_fopen_encrypted(3)
AUTHORS
Dieter Baron <dillo@giga.or.at> and Thomas Klausner <tk@giga.or.at>
NiH January 3, 2011 ZIP_SET_DEFAULT_PASSWORD(3)