Section: Perl Programmers Reference Guide (3pm)
GDBM_File - Perl5 access to the gdbm library.
use GDBM_File ;
tie %hash, 'GDBM_File', $filename, &GDBM_WRCREAT, 0640;
# Use the %hash array.
untie %hash ;
is a module which allows Perl programs to make use of the
facilities provided by the GNU
gdbm library. If you intend to use this
module you should really have a copy of the gdbm manualpage at hand.
Most of the libgdbm.a functions are available through the GDBM_File
Unlike Perl's built-in hashes, it is not safe to "delete" the current
item from a GDBM_File tied hash while iterating over it with "each".
This is a limitation of the gdbm library.
gdbm is available from any GNU
archive. The master site is
, but you are strongly urged to use one of the many
mirrors. You can obtain a list of mirror sites from
SECURITY AND PORTABILITY
Do not accept GDBM files from untrusted sources.
GDBM files are not portable across platforms.
The GDBM documentation doesn't imply that files from untrusted sources
can be safely used with "libgdbm".
A maliciously crafted file might cause perl to crash or even expose a
The available functions and the gdbm/perl interface need to be documented.
The GDBM error number and error message interface needs to be added.