Re: code analysis tools
From: Gregg Reynolds [EMAIL PROTECTED] On 3/26/07, Marco Peereboom [EMAIL PROTECTED] wrote: ectags ctags cscope All work fine within emacsOS and vim. http://fxr.watson.org/ is invaluable too. I see GNU Global does something similar: Has anyone played with OpenGrok yet? http://www.opensolaris.org/os/project/opengrok/
Re: An introduction of sorts
From: Dan Farrell [EMAIL PROTECTED] Being prepared to be in the community is the best way to make the entrance smoother... -Read the faq. -Read undeadly.org -Rtfm and Google prior to posting questions... show that you've done your homework. -Have thick skin I'm a new kid on the block and would like to be introduced to the community in a formal sense; which is why I'm writing this letter in hopes of become embedded in the community as opposed to another face in the crowd. It sounds like participating on BSDForums would be better suited for you. It is a series of forums focusing on FreeBSD/OpenBSD/NetBSD targets newbies, students, professionals. http://www.bsdforums.org/forums
minimum hardware requirements for NTP server?
I would like to set up OpenBSD 4.0 as an NTP server using GPS as the time source instead of punching a hole periodically in a firewall to query the Internet time servers. Does anyone have recommendations for the minimum hardware required to implement this? I have old 200MHz, 400MHz, 600MHz, 800MHz boxes which could be used. Thanks for any candor provided. Jim
anyone have any nmea(4) stories?
Has anyone set up a GPS to serve as a ntp source yet? Care to share any insights gained? Thanks. j
Re: Looking for general info on OpenBSD
On Wed, Aug 23, 2006 at 10:33:46AM -0700, Jon R H wrote: Dose OpenBSD have a printed manual like... Starting with your documentation questions: AFAIK, OpenBSD's official documentation is limited to: * The definitive man pages. * The published FAQ * The PF User's Guide * All of the many miscellaneous web pages, such as errata, stable, etc. * Architecture specific installation docs As for books, you might consider: Absolute OpenBSD http://www.amazon.com/gp/product/1886411999/sr=1-1/qid=1156357254/ref=pd_bbs_1/104-9040577-1213503?ie=UTF8s=books Secure Architectures with OpenBSD http://www.amazon.com/gp/product/0321193660/ref=pd_sim_b_3/104-9040577-1213503?ie=UTF8 Building Firewalls with OpenBSD and PF http://www.amazon.com/gp/product/8391665119/sr=1-2/qid=1156357095/ref=sr_1_2/104-9040577-1213503?ie=UTF8s=books The complexity of these books increases from top to bottom. If you have any interest in firewalls, the Artymiak book above is really solid.
Wireshark 0.99 on OpenBSD 3.9
FYI. For those contemplating installing Wireshark, the 0.99.2 snapshot currently available on http://www.wireshark.org/download.html does not build on 3.9. There has been recent discussion on wireshark-dev@ about this, and the latest SVN source appears to correct the problem(s): http://www.mail-archive.com/wireshark-dev@wireshark.org/msg00328.html The list of packages build sequence described at the following page are still correct as I have successfully built what becomes Wireshark 0.99.3 from the latest SVN source this weekend. http://www.cromwell-intl.com/unix/openbsd-dell.html HTH. Jim
running Linux Firefox on 3.9?
I simplistically installed the Linux version of Firefox, firefox-1.5.0.4.tar.gz, given that I already have OpenOffice 2.0.3 installed, I thought I had all the prerequisites in place in order to run Firefox. I don't. Firefox generated a dialog on first invocation, but immediately generated a segmentation fault. Any other time I tried running it, I simply get the segmentation fault. Does anyone have any pointers that I am blatantly missing? Thanks. Jim
Re: question about mount command
Original message from pk.ra [EMAIL PROTECTED]: My hard disk is divided into four partitions. There are two MSDOS partitions, one FreeBSD and one partition for OpenBSD. There are files with name on other languages on my MSDOS partitions. How can I mount these partitions with correct names of files? See Section 4.8 of the FAQ. http://openbsd.org/faq/faq4.html#Multibooting
Re: OpenOffice.org 2.0 works on OpenBSD
Original message from Frank Denis [EMAIL PROTECTED]: Openoffice.org still works fine under OpenBSD. I don't have any host with X11 right now, but the basic steps to install it were : - pkg_add redhat_base - get the Openoffice.org RPM - /emul/linux/bin/rpm --ignoreos --ignorearch -ivh *.rpm - /opt/openoffice.org2.2/program/soffice If java is installed and in your path, you may want to rename it before the first run of Openoffice or odd things can happen. Like? And do you have an idea why? Jim
Re: mounting winxp
Original message from Martin Gruden [EMAIL PROTECTED]: I have a noob question. I have two disks wd0 and wd1 . On wd1a to wd1f i have obsd3.9 an on wd0 i have winXP. I read the fstab man page but it doesn't explain anything about mounting xp. Read Section 14.16 of the OpenBSD FAQ. You will need to recompile your kernel in order to get NTFS support. http://openbsd.org/faq/faq14.html#foreignfs Jim
Re: Problems mounting a usb disk
Original message from David Burau [EMAIL PROTECTED]: Hi, i've installed OpenBSD 3.9 on a IBM T20 notebook. Everything is working fine. Bit I'm not able to mount a usb disk. dmesg output ist: - sd0 at scsibus1 targ 1 lun 0... sd0: 76319MN, 76319 cyl, ... -- and that's my disk. The Problem is, that there is no sd0 in /dev and when I try to mount sd0a (mount /dev/sd0a /mnt/usb) I get a note, that the device is not configured. You didn't mention which filesystem is on your USB drive; I'll assume DOS. If so, then look at the disk's disklabel to determine which slice is the DOS partition; most likely, it is in sd0i or above. That is the slice to be mounted, not sd0a. Look at section 14.17 of the FAQ. Jim
Re: Static functions in C code
Original message from Diego Giagio [EMAIL PROTECTED]: 1. there are debugging requirements. Static functions do not expose entry points. Even for user-level code? If you are thinking there is a difference between kernel code userland code, no. Compilers compile code based upon the files switches provided. The only difference between static non-static functions from a compiler's perspective is that non-static functions have the symbol representing their address made public in the resulting object file; static functions do have an analogous symbol, but it is not made public. Look at nm for more discussion: http://www.openbsd.org/cgi-bin/man.cgi?query=nmapropos=0sektion=0manpath=OpenBSD+Currentarch=i386format=html End result: the keyword static simply plays games with what the linker receives as input. Jim
Re: C++ problem in current snapshot (2006-05-22) [SOLVED]
Original message from Toni Mueller [EMAIL PROTECTED]: ... Now, what's the recommended books for C++ these days? _The C++ Programming Language_ by Bjarne Stroustrup.
Re: Static functions in C code
Original message from Diego Giagio [EMAIL PROTECTED]: ... I have a concern, thought: why most applications don't use the 'static' keyword for functions with internal linkage ? Wouldn't that avoid function name clashes when developing large programs? Either because: 1. there are debugging requirements. Static functions do not expose entry points. 2. most developers don't consider limiting global namespace pollution as this doesn't frequently hinder development. Consider being concerned about how many names are in the global namespace the programmatic equivalent to flossing. As an aside, note in C++ that the keyword static is even less in vogue than it was in C given its overuse within the language definition. static has at least five distinct meaning based upon its context: 1. static global instances -- no public linkage for names are created in object files. 2. static automatic variables within functions -- 3. static functions -- 4. static members within class definitions -- class variables of which one instance is shared across all instances of the class. 5. static member functions -- functions with no knowledge of individual class instances other than whatever static members which may be defined. There may be a sixth, but I haven't verified it lately. This may only be a compiler implementation issue: 6.? static constants -- may force the compiler to allocated memory for the instance. This isn't to say that there are equivalents elsewhere in the language which obviate all uses of static, but namespaces sidesteps some of these issues. Jim
Ethereal on 3.9?
This topic usually comes up near each release. Has anyone tried the 3.8 instructions below yet on 3.9? http://www.linbsd.org/ethereal_on_openbsd38.html Jim
Re: ifficiency
Original message from prad [EMAIL PROTECTED]: suppose that you have 2 conditions A and B where B take a lot of effort to determine (eg looking for a string match in a huge file). either A or B needs to be true before you can execute 'this'. the 2 if statements below are equivalent i think: if A or B: do this if A: do this elseif B: do this now, do they work the same way? Both of these forms are equivalent only in languages which short-circuit Boolean expressions (not all language implement short-circuiting...). C/C++ both support this feature. What is the difference? In languages which provide short-circuiting, sub-expressions within a complex expression will be evaluated left to right up to the point where the value of the overall expression is determined. ie. in (A or B), only one sub-expression needs to be true in order for the entire expression to be true. So, if A is true, there is no need to evaluate sub-expression B to know the value of the overall expression. However, if A is false, then B must be computed to determine the value of the overall expression. Thus in C/C++, the two forms given above are equivalent. Note that these sub-expressions within languages which support short-circuiting are evaluated from left to right. Thus, the most expensive sub-expressions should be listed last -- placed as far right as possible. OTOH without short-circuiting, both sub-expressions within (A or B) will be evaluated. This does not match your second statement: if A: do this elseif B: do this ...which executes do this; based upon the truth of expression A. You can consider short-circuiting of Boolean evaluation greedy, but it a feature which may also save clock cycles if the right-most sub-expressions are costly to evaluate. j
Re: ifficiency
Original message from prad [EMAIL PROTECTED]: On Monday 22 May 2006 17:54, you wrote: ... i was puzzled reading something on one of the wikipedia links provided: The opposite of lazy evaluation is eager evaluation, also known as strict evaluation. Eager evaluation is the evaluation behavior used in most programming languages. http://en.wikipedia.org/wiki/Lazy_evaluation it would seem to me that lazy evaluation makes more sense than eager evaluation since it is both more logical and economical. i do not know much about language interpretation or compilation processes, but how can it possibly be of any advantage to do 2 things when you can get away doing just one? so why would 'most programming languages' NOT use it? there must be some benefit eager evaluation offers despite what seems to be a lack of efficient evaluation. is eager evaluation easier to design or implement perhaps? Whether an application is compiled has no bearing on short-circuiting. This feature can be implemented in either environment. As for why all languages don't use this feature, I suspect it is for purity. An expression is specified in code, it should be executed. OTOH, short-circuiting is simply an efficiency optimization. As for whether it is easier to implement short-circuiting or not, IMO short-circuiting isn't that hard to do. It's really up to the language designer as to whether they see that short-circuiting is congruent with the goals of the language. For languages intending on emphasizing pedantic behavior prescribed in code, short-circuiting would probably not be implemented. For languages wanting to provide performance optimizations as part of the language, implementing short-circuiting makes sense. Jim
OpenOffice with JRE or without?
In investigating what's needed to install configure OpenOffice, I see on their Website that I have the choice of downloading it with or without the JRE. Remembering some of traffic here discussing the issues of installing/compiling Java 1.5, how stable is the Linux JRE on OpenBSD? Am I better off downloading OpenOffice without the JRE expect to build it myself? In this case, am I forced to install/compile Java before installing OpenOffice? Thanks for any shared candor. j
Re: www.openbsd.org defaults to Japanese
From: Tan Dang [EMAIL PROTECTED] Any reason why www.openbsd.org displays Japanese by default now? Tan I see English when accessing www.openbsd.org as I have always done so. You might want to look at your locale settings.
Re: C++ textbooks: recommendations?
That's easy. Get the information for the guy who envisioned the language. _The C++ Programming Language_ Bjarne Stroustrup. Addison-Wesley, 2000 ISBN: 0201700735 http://www.amazon.com/gp/product/0201700735/sr=1-1/qid=1144196764/ref=sr_1_1/104-6908142-7055123?%5Fencoding=UTF8s=books -- Original message -- From: [EMAIL PROTECTED] i need to learn C++, but do not know where to begin with textbooks or online docs. since, AFAICT, there are a great many skilled programmers on list, i would appreciate any recommendations that can be made about introductory and intermediate texts on C++. my motivation for asking this is to avoid purchasing texts that will sit on my shelf and collect dust. there are a great many introductory texts on nearly every subject that do just that and/or don't cover enough material in sufficient depth. are there any texts on best practices for writing exploit-free code? if you feel this is insufficiently openbsd related, please reply off-list to reduce chatter. cheers, jake
