From: Jeff King Date: Mon, 08 Jun 2009 22:07:13 GMT Subject: Re: [PATCH v3 1/3] Introduce die_errno() that appends strerror(errno) to die() Message-ID: <20090608220713.GB29942@sigill.intra.peff.net> In-Reply-To: <5f43aa9d0b69e99600a73bddd4c93217608ab661.1244494647.git.trast@student.ethz.ch> On Mon, Jun 08, 2009 at 11:02:18PM +0200, Thomas Rast wrote: > +void die_errno(const char *fmt, ...) > +{ > + va_list params; > + char fmt_with_err[1024]; > + > + snprintf(fmt_with_err, sizeof(fmt_with_err), "%s: %s", fmt, strerror(errno)); > + > + va_start(params, fmt); > + die_routine(fmt_with_err, params); > + va_end(params); > +} Aren't you assuming that strerror(errno) has no '%'-signs here, which is what kicked off the whole discussion? -Peff