August 2004 - WLUG - wlug.mailman3.com

Question on privoxy

by Andrew Robert

Hi Everyone, I just installed the privoxy proxy server and configured my Opera browser v7.54 to use 127.0.0.1 under Fedora Core2. It works great but the "blocked by" messages are somewhat annoying. Does anyone know a quick way to eliminate seeing these? Any help you can provide would be greatly appreciated. -- Thank you, Andrew Robert Systems Architect TS&S Infrastructure Support - OpenVMS Massachusetts Financial Services Phone: (617) 954-5882 Pager: (781) 764-7321 Linux user : #201204

Aug. 13, 2004

has anyone work with xwindows and svideo out display (tv)

by Sonny Nguyen

just asking...and testing...I have been trying to post stuff and keep getting email bounces. Sonny Nguyen

Aug. 13, 2004

fedora core 1 or 2 with lirc remote control program

by Sonny Nguyen

Any anyone done anything with lirc? Sonny Nguyen

Aug. 13, 2004

Fedora core 1 or 2 with Lirc remote control program

by Sonny Nguyen

Has anyone work with the lirc program with Fedora core 1 or 2. If you have seen this more than once.Please ignore the previous. Thanks. Sonny Nguyen

Aug. 13, 2004

New currency(?)

by Andy Stewart

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 http://www.danamania.com/temp/scodollar.jpg - -- Andy Stewart, Founder Worcester Linux Users' Group Worcester, MA USA http://www.wlug.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBG+kNHl0iXDssISsRAu5VAJ9ObHEV0IPGDorp6rDn3th0XK/urQCfZAfk ipKrKo7j69a4qUWqfumgmQs= =3T76 -----END PGP SIGNATURE-----

Aug. 12, 2004

Re: [Wlug] C gurus

by Brian Waite

On Wed, 11 Aug 2004 09:43:56 -0400, Chuck Haines <chaines(a)gmail.com> wrote: > For all you C gurus out there. I'm working on a little program that > when an event occurs, it dials out a Verizon Wireless AirCard, does > it's thing and then when all events are done, the last event close the > card. To close the ppp connection you send it a Ctrl-C, which I'm > doing, however it is never working. The code I'm using is as follows: > > void *sound_alarm ( void * rd_struct ) > { > RADSPY_STRUCT *ptr_rd_struct; > ptr_rd_struct = ( RADSPY_STRUCT * ) rd_struct; > /* lock the modem_in_use variable to check to dial modem */ > pthread_mutex_lock ( &modem_mutex ); > if ( modem_in_use++ == 0 ) > { > /* we need to dial out the modem */ > printf ( "Dialing the modem: %d\n", modem_in_use ); > modem_pid = fork(); > if ( 0 == modem_pid ) > { > int ret; > /* we are the child so dial out the modem */ > ret = execl ( "/usr/sbin/pppd", "pppd", "call", "ac555qnc", NULL ); > if ( -1 == ret ) > printf ( "Problem dialing modem: %s\n", strerror ( errno ) ); > printf ( "Got here.\n" ); > exit ( 0 ); > } > /* hack to wait enough time to let the modem dial */ > sleep ( 10 ); > } > pthread_mutex_unlock ( &modem_mutex ); > /* perform the sending of the data */ > printf ( "Sounding the alarm: %d.\n", modem_in_use ); > sleep ( 1 ); /* code to send away alarms will go here, > sleep for now */ > /* release the modem in use */ > pthread_mutex_lock ( &modem_mutex ); > if ( --modem_in_use == 0 ) > { > /* we need to hangup the modem */ > printf ("Hanging up the modem: %d\n", modem_in_use ); > kill ( SIGINT, modem_pid ); > } > pthread_mutex_unlock ( &modem_mutex ); > > pthread_exit ( (void *) 0 ); > } > > This function is a thread that is spawned by the main loop when an > event occurs. This event can occur multiple times, which is why I > have the shared variable of how many events are currently occuring > (modem_in_use). When I run this program, I'm always getting an error > about the modem being locked by pid XXX, so it's never being closed. > Anyone have any experience with this kinda thing? > > Chuck > > -- > Chuck Haines > chaines(a)gmail.com > ------------------------------------------- > Tau Kappa Epsilon Fraternity > WPI Class of 2005 > ------------------------------------------- > AIM: CyberGrex > YIM: CyberGrex_27 > ICQ: 3707881 > ------------------------------------------- > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > What does the parent process look like? How do you spawn the child? If I remember correctly you need to either do a pthread_join() or detach the child from the parent using pthread_attr_init() before spawning the thread to completely clean up the child thread. Thanks Brian

Aug. 11, 2004

C gurus

by Chuck Haines

For all you C gurus out there. I'm working on a little program that when an event occurs, it dials out a Verizon Wireless AirCard, does it's thing and then when all events are done, the last event close the card. To close the ppp connection you send it a Ctrl-C, which I'm doing, however it is never working. The code I'm using is as follows: void *sound_alarm ( void * rd_struct ) { RADSPY_STRUCT *ptr_rd_struct; ptr_rd_struct = ( RADSPY_STRUCT * ) rd_struct; /* lock the modem_in_use variable to check to dial modem */ pthread_mutex_lock ( &modem_mutex ); if ( modem_in_use++ == 0 ) { /* we need to dial out the modem */ printf ( "Dialing the modem: %d\n", modem_in_use ); modem_pid = fork(); if ( 0 == modem_pid ) { int ret; /* we are the child so dial out the modem */ ret = execl ( "/usr/sbin/pppd", "pppd", "call", "ac555qnc", NULL ); if ( -1 == ret ) printf ( "Problem dialing modem: %s\n", strerror ( errno ) ); printf ( "Got here.\n" ); exit ( 0 ); } /* hack to wait enough time to let the modem dial */ sleep ( 10 ); } pthread_mutex_unlock ( &modem_mutex ); /* perform the sending of the data */ printf ( "Sounding the alarm: %d.\n", modem_in_use ); sleep ( 1 ); /* code to send away alarms will go here, sleep for now */ /* release the modem in use */ pthread_mutex_lock ( &modem_mutex ); if ( --modem_in_use == 0 ) { /* we need to hangup the modem */ printf ("Hanging up the modem: %d\n", modem_in_use ); kill ( SIGINT, modem_pid ); } pthread_mutex_unlock ( &modem_mutex ); pthread_exit ( (void *) 0 ); } This function is a thread that is spawned by the main loop when an event occurs. This event can occur multiple times, which is why I have the shared variable of how many events are currently occuring (modem_in_use). When I run this program, I'm always getting an error about the modem being locked by pid XXX, so it's never being closed. Anyone have any experience with this kinda thing? Chuck -- Chuck Haines chaines(a)gmail.com ------------------------------------------- Tau Kappa Epsilon Fraternity WPI Class of 2005 ------------------------------------------- AIM: CyberGrex YIM: CyberGrex_27 ICQ: 3707881 -------------------------------------------

Aug. 11, 2004

Re: [Wlug] Multiple platform blues...

by Chuck Haines

I've been using Linux in a predominately Microsoft office. I've found that OO works well for most things except when the document is highly dependent on Macro's and such. I have found that spending the money on Star Office did help solve some problems with incompatibilities I found, though I'm not sure why since it's based off OO 1.1.2. Overall, IMHO, getting use to the difference between OO and Word take some time since OO does page layouts differently, however I've found that now that I've learned it, I'm much more productive. I've also found that in the OO Spreadsheet, any check boxes done in MS Excel only seemed to work for me in Star Office. As for power point, I've never really had any problems. Just some of my thoughts, Chuck On Mon, 09 Aug 2004 08:54:03 -0400, Stephen C. Daukas <stephen(a)daukas.com> wrote: > Brett Russ wrote: > > > Great! Now for my next trick: try Firefox :-) Seriously, I've been > > running the combo for a long time now and see no reason to run Mozilla > > anymore, especially considering the future lies with the separates. > > I agree... I'll give it a try. > > > And in regards to the dynamic DNS issue, you don't actually need to > > pay $25 a year--they give you 5 free DDNS hosts for free--all you have > > to do is make sure you update them once a month (automate that with SW > > of course). > > I got the impression that you had to pay the annual fee if you wanted to > use your own domain... > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > -- Chuck Haines chaines(a)gmail.com ------------------------------------------- Tau Kappa Epsilon Fraternity WPI Class of 2005 ------------------------------------------- AIM: CyberGrex YIM: CyberGrex_27 ICQ: 3707881 -------------------------------------------

Aug. 11, 2004

Re: [Wlug] Logitech QuickCam Pro and Programming

by Marc Hughes

Check this out... http://www.linuxjournal.com/article.php?sid=6232 The "motion" project mentioned sounds similar to what you want. -Marc On Tue, 10 Aug 2004 12:24:06 -0400 (EDT), frank p <fspoz3(a)wpi.edu> wrote: > > I'm not sure if this is what you're looking for, but someone involved with > the local ACM student chapter wrote something in perl using the > Video4Linux API (at least that's what the website says: > http://www.acm.wpi.edu/~webcam/sincam/ > > -frank p > > > > On Tue, 10 Aug 2004, Chuck Haines wrote: > > > Hey guys, > > I recently got a Logitech QuickCam Pro and was thinking about > > doing some development work with it. I'd like to make a program that > > will take pictures when motion is detected or when I send it commands > > to do so. I'm currently looking to do it in C, so does anyone have > > any experience with this? I've done some googling and found some > > material but nothing that is really a how-to for the API for this > > kinda thing. Oh yea, I'm developing it on a laptop that runs Fedora > > Core 2, but I will eventually be porting it to an embedded computer > > (an Arcom GX-1 to be exact) which runs a flavor of RedHat 7.2 and > > kernel 2.4.18. > > > > Thanks, > > Chuck > > _______________________________________________ > > Wlug mailing list > > Wlug(a)mail.wlug.org > > http://mail.wlug.org/mailman/listinfo/wlug > > > > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug >

Aug. 10, 2004

Re: [Wlug] Logitech QuickCam Pro and Programming

by frank p

I'm not sure if this is what you're looking for, but someone involved with the local ACM student chapter wrote something in perl using the Video4Linux API (at least that's what the website says: http://www.acm.wpi.edu/~webcam/sincam/ -frank p On Tue, 10 Aug 2004, Chuck Haines wrote: > Hey guys, > I recently got a Logitech QuickCam Pro and was thinking about > doing some development work with it. I'd like to make a program that > will take pictures when motion is detected or when I send it commands > to do so. I'm currently looking to do it in C, so does anyone have > any experience with this? I've done some googling and found some > material but nothing that is really a how-to for the API for this > kinda thing. Oh yea, I'm developing it on a laptop that runs Fedora > Core 2, but I will eventually be porting it to an embedded computer > (an Arcom GX-1 to be exact) which runs a flavor of RedHat 7.2 and > kernel 2.4.18. > > Thanks, > Chuck > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > >

Aug. 10, 2004