FascistCheck - Online Linux Manual PageSection : 3
Updated : Wed, 3 Oct 2001 01:37:09 +0100
Source : 2.7-8.5
Note : Debian GNU/Linux manual

NAMEFascistCheck − a pro-active password checker library

SYNOPSIS#include <crack.h> static char const CRACKLIB_DICTPATH[] =  . . .;" extern char const *"
FascistCheck(char const passwd[], char const dictpath[]);"

DESCRIPTIONcracklib is a library containing the FascistCheck C function which may be used in a "passwd" like program. The idea is simple: try to prevent users from choosing passwords that could be guessed by "crack" by filtering them out, at source. cracklib is an offshoot of the the version 5 of the "crack" software and contains a considerable number of ideas nicked from the new software. The first formal argument password is the potential password. The second formal argument dictpath is the full path name + filename prefix of the cracklib dictionary database. FascistCheck returns the NULL pointer for a good password, or a pointer to a diagnostic string if it is a weak password. The database is in a binary format generated by the utilities crack_mkdict(8) and crack_packer(8). On a Debian system the database is located in the directory defined by the static constant CRACKLIB_DICTPATH and is set to /var/cache/cracklib/cracklib_dict. None of the subroutines in the cracklib libraries have this location hard-coded into their implementations. It is generated daily with the program /etc/cron.daily/cracklib.

FILES/var/cache/cracklib/cracklib_dict.[hwm|pwd|pwi]  cracklib dictionary database files used by utilities. /etc/cron.daily/cracklib  cracklib daily cron program to rebuild the cracklib dictionary database. /etc/cracklib/cracklib.conf  cracklib configuration file used by the cracklib daily cron program to rebuild the cracklib dictionary database. /usr/sbin/crack_mkdict  cracklib shell script to create initial list of words for dictionary database. /usr/share/doc/cracklib2-dev/examples  Example cc(1) source files that show how FascistCheck is used.

SEE ALSOcrack_teststr(8), crack_mkdict(8), update−cracklib(8)
/usr/share/doc/cracklib2-dev/examples
/usr/share/doc/cracklib2/cracklib2.html
/usr/share/doc/cracklib2-dev/cracklib2-dev.html

AUTHORcracklib2 is written by Alec Muffett <alecm@crypto.dircon.co.uk>. Manual added by Jean Pierre LeJacq <jplejacq@quoininc.com>.
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