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g_build_path, which breaks on (at least) powerpc)
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From: Wouter Verhelst <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: incorrect use of varargs in g_build_path, which breaks on (at least)
powerpc
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Date: Thu, 31 Mar 2005 17:40:28 +0200
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Package: libglib2.0-0
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Hi,
stdarg(3) says, about va_arg:
If there is no next argument, or if type is not compatible with the
type of the actual next argument (as promoted according to the default
argument promotions), random errors will occur.
And yet, the file gfileutils.c contains (starting line 1140):
if (next_element)
{
element = next_element;
next_element = va_arg (args, gchar *);
}
else
break;
which seems to try to find out whether there are any further arguments
by checking if the return value of va_arg is anything but NULL. This
isn't correct; it probably works on the developer's system, but on my
PowerBook the result is stack corruption and segfaults.
Fixing this would probably need an API change, unfortunately.
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: powerpc (ppc)
Kernel: Linux 2.6.11.6
Locale: [EMAIL PROTECTED], [EMAIL PROTECTED] (charmap=UTF-8)
Versions of packages libglib2.0-0 depends on:
ii libc6 2.3.2.ds1-20 GNU C Library: Shared libraries an
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Date: Wed, 13 Apr 2005 01:07:41 +0200
From: Wouter Verhelst <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: Bug#302389: Acknowledgement (incorrect use of varargs in
g_build_path, which breaks on (at least) powerpc)
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(...)
OK, scratch that, I'm a moron. Properly reading the API documentation
before filing bugs is usually a good idea...
Sorry for the noise.
--
EARTH
smog | bricks
AIR -- mud -- FIRE
soda water | tequila
WATER
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