From: Luke Schierer <lschiere@us...> - 2003-05-26 12:45:09
Update of /cvsroot/gaim/gaim/src
In directory sc8-pr-cvs1:/tmp/cvs-serv30479/src
Ambrose LI (acli) writes:
" This is w.r.t. the 0.64cvs as of around 20:25 EDT.
When gaim starts up, it displays the signon window, and
then immeidately segfaults. The problem is that
tobase64() in util.c uses a size_t (which could very
likely be unsigned) as a second parameter, but proxy.c
calls it with a -1. "
at my questioning the specific change he made:
"Actually the initialization is not the matter (just
something I did while debugging and did not remove, since it
makes sense in any case), it's the other change that matters.
In util.h, the javadoc-like comments states that passing len
= -1 means that tobase64() should calculated len =
strlen(buf). However, since size_t is (or can be) unsigned,
the "if (len < 0)" check never succeeds, so passing
actually results in a very large integer being passed.
So the "if (len < 0)" check actually need to be
that the passed "-1" will actually get recognized."
so since most of us aren't segfaulting on start, i'm guessing this is a
platform/os specific problem, but that the change shouldn't affect the
rest of us anyway.
RCS file: /cvsroot/gaim/gaim/src/util.c,v
retrieving revision 1.193
retrieving revision 1.194
diff -u -d -r1.193 -r1.194
--- util.c 25 May 2003 18:35:23 -0000 1.193
+++ util.c 26 May 2003 12:45:05 -0000 1.194
@@ -353,10 +353,10 @@
/* This was borrowed from the Kame source, and then tweaked to our needs */
char *tobase64(const unsigned char *buf, size_t len)
- char *s, *rv;
+ char *s = NULL, *rv = NULL;
- if(len < 0)
+ if(len == (size_t)(-1))
len = strlen(buf);
s = g_malloc((4 * (len + 1)) / 3 + 1);
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