Aug 7

'crypt'ing in Linux..

Linux, Solaris 3 Comments »

Anybody else noticed that the Solaris 'crypt' command isn't in common use in the Linux community?


This proved to be an issue for me a little while back while transferring some data between companies and systems. Fortunately a quick visit to OpenSolaris provided the source, which only required a small modification in order to allow it to be compiled for use under Linux..
67c67
< ret = des_crypt(buf, &buf[8]);
---
> ret = crypt(buf, &buf[8]);

Yet another advantage to Solaris being open-sourced...


Posted by Mike Scott

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3 Comments

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  1. Dave Whiting says:
    08/24/2006 07:30:44 AM

    Do you know if crypt is used when you're using -x in vi under Solaris? I've used this in the past for encrypting files quickly and I'd love to have it for other Unix flavours.

  2. Mike says:
    08/24/2006 07:52:19 AM

    Yep - certainly does.. indeed, it actually uses the "crypt" command itself to do the encryption/decryption:

    4507: execve("/usr/bin/vi", 0xEFFFFBA0, 0xEFFFFBB0) argc = 3
    4516: execve("/sbin/sh", 0xEFFFF4D0, 0xEFFFFBDC) argc = 3
    4516: execve("/usr/bin/crypt", 0x00061234, 0x0006124C) argc = 2
    4518: execve("/sbin/sh", 0xEFFFF468, 0xEF770C60) argc = 3
    4518: execve("/usr/bin/crypt", 0x00061234, 0x0006124C) argc = 2
    4518: ** process killed **
    4520: execve("/sbin/sh", 0xEFFFD4E8, 0xEF770C60) argc = 3
    4520: execve("/usr/bin/crypt", 0x00061234, 0x0006124C) argc = 2
    4516: ** process killed **
    4520: ** process killed **

  3. Steve Parker says:
    08/21/2009 09:15:59 AM

    Also, I found that sizeof(long) was 8 on Linux, but 4 on Solaris; I had to change "long seed" to "int seed" to get the correct results.

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