Date: Tue, 01 Sep 1998 16:30:11 -0700 From: John Polstra <jdp@polstra.com> To: Brian Feldman <green@unixhelp.org> Cc: current@FreeBSD.ORG Subject: Re: E-day problems: rtld-elf dlsym() broken? Message-ID: <199809012330.QAA16019@austin.polstra.com> In-Reply-To: Your message of "Tue, 01 Sep 1998 15:20:45 EDT." <Pine.BSF.4.02.9809011511060.28074-100000@zone.syracuse.net>
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> Actually, no. The program does no munging of the input at all, it looks up
> with or without the _, whichever you input by typing "lookup
> whatever\n"... it's not my program's fault, watch:
OK, I looked at your source. It's failing because the dynamic
linker doesn't handle the way you're calling dlsym, with a NULL
first argument:
if ((void *)index(line, '\0') < line + 8 ||
(lameptr = (void *)dlsym(NULL, baz = (char *)line + 7)) == NULL)
printf("%s: not found\n", *baz ? baz : "");
It's true that's documented in dlsym(3), so I guess I'll have to
support it. The original SunOS manual also documents it, but
Solaris makes no mention of it.
I'll fix it.
John
--
John Polstra jdp@polstra.com
John D. Polstra & Co., Inc. Seattle, Washington USA
"Self-knowledge is always bad news." -- John Barth
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