svgalib program is setuid root but still can't seem to allocate graphics console

2003-09-18 Thread Chris Pressey 
Hi,

I'm trying to write some code that uses /usr/ports/graphics/svgalib. 
I've started off with the first example program on:

  http://www.svgalib.org/jay/beginners_guide/beginners_guide.html

As root, I can compile and run it fine, and I get the message:

  [svgalib: allocated virtual console #10]

And if I try to run it as a normal user, I get:

  svgalib: Cannot get I/O permissions.

This is expected, because the program is not setuid root.  So as root I
chmod u+s it, but then when I run it as a normal user I get:

  You must be the owner of the current console to use svgalib.
  Not running in a graphics capable console,
  and unable to find one.
  Using RAGE driver, 8192KB.   ChipID:35 MemType:6
  Rage: BIOS reports base frequency=28.636MHz  Denominator= 31
  svgalib 1.4.3
  You must be the owner of the current console to use svgalib.
  Not running in a graphics capable console,
  and unable to find one.
  Not running in a graphics capable console,
  and unable to find one.

This is on ttyv0, btw.  I'm running X on ttyv9.

I've googled for the past hour or so, but have been unable to find
anything particularly enlightening in regards to why (most pages refer
to Linux, and I've yet to find one that gives any advice beyond chmod
u+s.)

TIA for any help you can send my way!

-Chris
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Re: svgalib program is setuid root but still can't seem to allocate graphics console

2003-09-18 Thread Chris Pressey 
On Thu, 18 Sep 2003 11:00:25 -0700
Chris Pressey [EMAIL PROTECTED] wrote:

 Hi,
 
 I'm trying to write some code that uses /usr/ports/graphics/svgalib. 
 I've started off with the first example program on:
 
   http://www.svgalib.org/jay/beginners_guide/beginners_guide.html
 
 As root, I can compile and run it fine, and I get the message:
 
   [svgalib: allocated virtual console #10]
 
 And if I try to run it as a normal user, I get:
 
   svgalib: Cannot get I/O permissions.
 
 This is expected, because the program is not setuid root.  So as root
 I chmod u+s it, but then when I run it as a normal user I get:
 
   You must be the owner of the current console to use svgalib.
   Not running in a graphics capable console,
   and unable to find one.
   Using RAGE driver, 8192KB.   ChipID:35 MemType:6
   Rage: BIOS reports base frequency=28.636MHz  Denominator= 31
   svgalib 1.4.3
   You must be the owner of the current console to use svgalib.
   Not running in a graphics capable console,
   and unable to find one.
   Not running in a graphics capable console,
   and unable to find one.
 
 This is on ttyv0, btw.  I'm running X on ttyv9.

Followup: this is happening not just with my own program, but with
programs in the ports tree like /usr/ports/graphics/acidwarp and
/usr/ports/graphics/seejpeg, on both of my FreeBSD machines:

FreeBSD foo 4.9-PRERELEASE FreeBSD 4.9-PRERELEASE #0: Thu Aug 28
11:26:32 CDT 2003 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/FOO  i386

FreeBSD bar 4.9-PRERELEASE FreeBSD 4.9-PRERELEASE #3: Tue Sep  9
11:35:09 CDT 2003 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/BAR  i386

Both machines contain this in their dmesg:

vga0: Generic ISA VGA at port 0x3c0-0x3df iomem 0xa-0xb on
isa0

But in short this doesn't feel like a video problem, it feels like a
setuid-bit/svgalib/both problem.

Is anyone else experiencing these sorts of problems?  Was there some
recent STABLE change regarding setuid/svgalib that I missed?

-Chris
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