Date: Wed, 12 Jul 2000 18:00:16 -0400 From: "Thomas M. Sommers" <tms2@mail.ptd.net> To: Dag-Erling Smorgrav <des@flood.ping.uio.no> Cc: Mike Pritchard <mpp@mppsystems.com>, Alfred Perlstein <bright@wintelcom.net>, arch@FreeBSD.ORG Subject: Re: kernel printf %i? Message-ID: <396CEA70.2C7A69B3@mail.ptd.net> References: <5lzonpbc53.fsf@assaris.sics.se> <57067.963303670@axl.ops.uunet.co.za> <20000711013227.P25571@fw.wintelcom.net> <20000711041415.A16480@mppsystems.com> <xzpsntfg623.fsf@flood.ping.uio.no>
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Dag-Erling Smorgrav wrote:
>
> Speaking of printf(), there are two things I'd like to see added:
>
> - in libc, a *dprintf() family similar to *fprintf() except that they
> write to a file descriptor instead of a FILE *.
How about something like this:
#include <stdarg.h>
#include <stdio.h>
int dprintf(int fd, const char *format, ...)
{
char *buf;
int err;
int len;
va_list args;
va_start(args, format);
len = vasprintf(&buf, format, args);
va_end(args);
err = write(fd, buf, len);
free(buf);
return err;
}
--
I do not approve of anything that tampers with natural ignorance.
Ignorance is like a delicate exotic fruit; touch it and the bloom
is gone.
-- Lady Bracknell
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