Newbie question - gcry_sexp_build Seg. Fault
António Pinto
pinto.antonio at gmail.com
Thu Nov 4 18:20:55 CET 2004
That was one of the attempts I've made to resolve the seg. fault. The
actual code is the following:
------------------
int buildSig(int msgid, int leaderid, char * sig) {
gcry_sexp_t plain, sign;
int len,data;
data=msgid+leaderid;
gcry_sexp_build (&plain, NULL, "(data (flags raw) (value %d))", data);
gcry_pk_sign(&sign, plain, sKey);
len=gcry_sexp_sprint(sign, GCRYSEXP_FMT_ADVANCED, sig, sizeof(char)*1024);
return len;
}
--------------------
And I keep getting de seg. fault.
One thing I've noticied is that the seg. fault only happens on the
first run (of the first forked process, in a multi process
enviroment).
thx
On Fri, 5 Nov 2004 01:17:43 +0000 (Local time zone must be set--see
zic manual page), t.fromm at dresearch.de <t.fromm at dresearch.de> wrote:
>
> On Thu, 4 Nov 2004, António Pinto wrote:
>
> > I'm getting a seg. fault while running the following code:
> >
> > ------------------------
> > gcry_sexp_build (&plain, NULL, "(data (flags raw) (value %d))", &data); /* SEG FAULT */
>
> Typo here: you want to use tha value of (int) data, not the value at the
> address this (uninitialised) int points to. Try '...lue %d))", data);' .
>
> Regards,
> Thilo
>
> /* Dipl.-Ing. (FH) Thilo Fromm, MSc., Hardware & Software
> * DResearch Digital Media Systems GmbH
> * Otto-Schmirgal-Str. 3, 10319 Berlin, Germany
> * Tel: +49 (30) 515932-228 mailto:t.fromm at dresearch.de
> * Fax: +49 (30) 515932-299 http://www.dresearch.de */
>
>
--
António Pinto
More information about the Gcrypt-devel
mailing list