"Error opening terminal" about cpm HOT 5 CLOSED

this has something to do with max memory lock

from cpm.

Well, i have the same issue, but everything seems fine (except for the fact that i cant run cpm):
Error opening terminal: rxvt-unicode.

• The first thing is checking other ncurses apps and creating an appropriate terminfo file. I did this, everything else works. Then i set $TERM=xterm, started an xterm and got the same error (just for xterm).

• I really want to use cpm (it seems secure, accessable through CLI, lots of nice options, C, and so on) and this seems like a dumb-mistake.So, please help me and krav :)

• Here is some output:

• cpm -v:

  cpm 0.26 (32 bit)
  CDK version 5.0 (20060507).
  GpgME version 1.2.0 (rcpt).
  ncursesw version 5.9 (20110404).
  XML2 version 2.7.8.
  zlib version 1.2.3.4.
  cracklib ist aktiv.
  Written by Harry Brueckner [email protected] 2005-2009.
  Maintained by Kacper Wysocki [email protected] 2010.

• cpm -s:
  Ausführung ohne Root Privilegien: ja
  Speicherschutz vor Coredumps: ja
  Speicherschutz vor Speicherauslagerung: ja
  Max. Speichersperre ist ok: ja (6144 kB)
  Speicherauslagerung vor ptrace Spionage: ja
  Validierung der Umgebungsvariablen: ja
  Cracklib dictionary (/var/cache/cracklib/cracklib_dict):ja

• cpm --configtest
Konfigurationsdatei ok.

• ncursesw5-config --version ; ncurses5-config --version

  5.9.20110404
  5.9.20110404

from cpm.

My theory is that on newer systems you will need a lot higher memlock limit than initially expected..

Max. Speichersperre ist ok: ja (6144 kB)

try bumping mlock to at least 32MB, maybe even set it to unlimited:
/etc/security/limits.conf:

• - memlock unlimited

unfortunately you will need to completely log out and back in, maybe even reboot for this to take effect.

I haven't been able to pinpoint why it needs such a big memlock, maybe because of bloat in one of the library dependencies on newer distros.

from cpm.

we've made some headroom here. turns out the draconian memory lock limits arent as draconian from linux 2.6.9 and onwards. As a consequence, newer versions of cpm (0.27 and up) won't require suid to do the memlock. However, if this memlock is too small to contain the unpacked password database (and then some for program memory and curses), you will still have problems.

from cpm.

Problems should be fixed in release 0.30.

from cpm.