Excellent article [“Must-Have Zaurus Hardware and Software”, LJ, January 2003]! Very informative and a lot of detail. I have just bought my Zaurus, and I downloaded a lot of utilities and was able to set my Zaurus's configuration with the help of Guylhem Aznar's article. Thank you.
In “Playing with ptrace, Part II” [LJ, December 2002], Pradeep Padala talked about injecting code into a process and finding some “free space” to put it in to. It's worth noting that the space referred to is not really “free”; it's usually either the cleared space used for global storage in the executable and its shared libraries or the C library's heap storage area. In any case, writing over this data and not restoring it before allowing the execution to continue (as may seem reasonable at first) could cause all sorts of weird behaviour, including program crashes.
Just got my January 2003 issue of LJ and was quite surprised to see a FreeS/WAN article included—nice work! I was really happy to see you used the RSASigs in the examples instead of preshared secrets, a welcome change from the usual and insecure examples I've read in the past. I maintain www.freeswan.ca, an alternate source of information, patches and prepatched versions of FreeS/WAN for interoperation with many devices. Freeswan.org now ships RPMs for Red Hat 7.x and 8.x for all kernel combinations. These include only the ipsec.o modules and user-land tools and don't replace your vmlinuz and grub/lilo configs. Folks should update to 1.99, as there was a serious denial-of-service flaw that is now fixed.
Mick's reply: Thanks very much for your suggestions. Part II appeared in the February 2003 issue, and I doubt this is the last I'll write on the subject!
As a long-term LJ reader (fourth year), I am really surprised about the great January 2003 issue—it covers all the stuff that I am interested in without even knowing about it. The GCJ, Screen and DDD/quicksort articles shed more light into the daily use of our beloved Linux platform. Please keep us informed about developments in compilers, debuggers and other development tools to make us more effective in developing new stuff. Keep up the good work.
—Raphael Arlitt, Germany
What LUG meeting or BOF session would not be enhanced by penguin canapés and an igloo cheeseball? We humbly submit pseudo-code for building same and an image as proof that it's working code.
2 packages cream cheese1 cheeseball1 can large black olives, pitted1 can small black olives, pitted1 carrot1 packages toothpicks with yellow or orange fringecrackers1 tin kippered herring (optional symbolic offering to penguins)
#!/bin/bash while hungry; do (\ cut_cream_cheese_into_strips_and_cover_cheeseball;\ make_igloo_entrance_tunnel_from_cream_cheese_strip;\ use_toothpick_to_sculpt_snow_block_seams;\ peel_carrot_with_vegetable_peeler;\ cut_carrot_into_coin-sized_slices;\ cut_slender_wedge_from_each_carrot_slice_and_reserve_for_beak;\ slit_each_large_olive_and_stuff_with_cream_cheese;\ puncture_each_small_olive_and_insert_carrot_wedge_beak;\ skewer_small-olive_head_large-olive_torso_and_carrot-slice_feet_with_toothpick;\ arrange_olive_penguins_about_cheeseball_igloo_on_serving_dish;\ arrange_crackers_on_serving_dish_or_nearby;\ serve); done
Herring also can be served to set the scene. Herring are one of two things that make penguins contented. This recipe is a clean-room implementation developed by reverse engineering based on a study of olive penguins and a cheeseball igloo served at a party. We hope the process is not patented. In any case, we assert that the recipe is our own work, and we release it under the terms of the GNU Free Documentation License.
—Michael Callaham [penguins] and Jennifer Gentry [igloo]
|Free Today: September Issue of Linux Journal (Retail value: $5.99)||Sep 27, 2016|
|nginx||Sep 27, 2016|
|Epiq Solutions' Sidekiq M.2||Sep 26, 2016|
|Nativ Disc||Sep 23, 2016|
|Android Browser Security--What You Haven't Been Told||Sep 22, 2016|
|The Many Paths to a Solution||Sep 21, 2016|
- Android Browser Security--What You Haven't Been Told
- Readers' Choice Awards 2013
- Free Today: September Issue of Linux Journal (Retail value: $5.99)
- Epiq Solutions' Sidekiq M.2
- Nativ Disc
- The Many Paths to a Solution
- Synopsys' Coverity
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- Returning Values from Bash Functions
Pick up any e-commerce web or mobile app today, and you’ll be holding a mashup of interconnected applications and services from a variety of different providers. For instance, when you connect to Amazon’s e-commerce app, cookies, tags and pixels that are monitored by solutions like Exact Target, BazaarVoice, Bing, Shopzilla, Liveramp and Google Tag Manager track every action you take. You’re presented with special offers and coupons based on your viewing and buying patterns. If you find something you want for your birthday, a third party manages your wish list, which you can share through multiple social- media outlets or email to a friend. When you select something to buy, you find yourself presented with similar items as kind suggestions. And when you finally check out, you’re offered the ability to pay with promo codes, gifts cards, PayPal or a variety of credit cards.Get the Guide