03-02-2018
Yes, you could but look up the difference between relative and absolute pathing.
If you use /home/jsmith then you can (normally) only restore it to that location, whereas, if you archive it with a relative name '.' you can restore it anywhere.
So when your user reports that he has lost a file you can restore the archive in some completely different location WITHOUT overwriting his current files. That's why most pro's always use relative pathnames.
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LEARN ABOUT CENTOS
zip_add
ZIP_ADD(3) Library Functions Manual ZIP_ADD(3)
NAME
zip_add , - .Nm zip_replace add file to zip archive or replace file in zip archive
LIBRARY
libzip (-lzip)
SYNOPSIS
#include <zip.h>
zip_int64_t zip_add(struct zip *archive, const char *name); "struct zip_source *source"
int zip_replace(struct zip *archive, zip_uint64_t index); "struct zip_source *source"
DESCRIPTION
The function zip_add adds a file to a zip archive, while zip_replace replaces an existing file in a zip archive. The argument archive
specifies the zip archive to which the file should be added. name is the file's name in the zip archive (for zip_add ), while index speci-
fies which file should be replaced (for zip_replace ). The data is obtained from the source argument. See the zip_source_* functions
cited in SEE ALSO.
RETURN VALUES
Upon successful completion, zip_add returns the index of the new file in the archive, and zip_replace returns 0. Otherwise, -1 is returned
and the error code in archive is set to indicate the error.
EXAMPLES
struct zip_source *s;
if ((s=zip_source_buffer(archive, buffer, len)) == NULL ||
zip_add(archive, name, s) 0) {
zip_source_free(s);
printf("error adding file: %s0, zip_strerror(archive)); }
ERRORS
zip_add and zip_replace fail if:
[ZIP_ER_EXISTS]
There is already a file called name in the archive. (Only applies to zip_add ).
[ZIP_ER_INVAL]
source or name are NULL, or index is invalid.
[ZIP_ER_MEMORY]
Required memory could not be allocated.
SEE ALSO
libzip(3), zip_source_file(3), zip_source_filep(3), zip_source_function(3), zip_source_zip(3)
AUTHORS
Dieter Baron <dillo@giga.or.at> and Thomas Klausner <tk@giga.or.at>
NiH March 10, 2009 ZIP_ADD(3)