Article View: es.comp.os.linux.programacion
Article #1471Re: Llamadas utilizando descriptores. Problema.
From: Gonzalo PĂ©rez de Olaguer CĂłrdoba
Date: Sun, 20 Nov 2005 19:54
Date: Sun, 20 Nov 2005 19:54
17 lines
1735 bytes
1735 bytes
Hola "Juan Miguel" <juanmivp@ono.com>
el Sun, 20 Nov 2005 12:28:54 +0100 escribiste:
> char s[20];
> read(0,s,1); /*Lectura de un byte del descriptor 0 */
> if (isdigit(s[0]))
> {
> sprintf(s,"El digito %c es verdaderamente un digito",s[0]);
Estás escribiendo en s más de 20 caracteres, lo cual produce un buffer
overflow.
ÂżCon letras funciona?
--
Gonzalo PĂ©rez de Olaguer CĂłrdoba <gpoc@iies.es>
PGP key 2861C704 --- F206 5671 6789 425D 111C 1302 214F 1934 2861 C704
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X-Google-Thread: f86c8,56d0d8afe6140b6 X-Google-Attributes: gidf86c8,public X-Google-Language: SPANISH,ASCII Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!newsfeed.hal-mli.net!feeder1.hal-mli.net!antonio.escomposlinux.org!reboot.escomposlinux.org!hercules.escomposlinux.org!escomposlinux.org!not-for-mail From: Gonzalo PĂ©rez de Olaguer CĂłrdoba <gpoc@iies.es> Newsgroups: es.comp.os.linux.programacion Subject: Re: Llamadas utilizando descriptores. Problema. Date: Sun, 20 Nov 2005 20:54:44 +0100 Organization: escomposlinux.org Lines: 17 Message-ID: <20051120205444.71036c62@petres.salonet.snet> References: <96Zff.117295$US.35148@news.ono.com> NNTP-Posting-Host: 59.red-80-25-103.staticip.rima-tde.net Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable X-Trace: hercules.cohp1 1132516485 28043 80.25.103.59 (20 Nov 2005 19:54:45 GMT) X-Complaints-To: newsmaster@cofrentes.no-ip.com NNTP-Posting-Date: Sun, 20 Nov 2005 19:54:45 +0000 (UTC) X-Newsreader: Sylpheed-Claws 1.0.4 (GTK+ 1.2.10; i386-pc-linux-gnu)