From owner-freebsd-questions  Sat Feb  8 19:55:47 2003
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Date: Sat, 8 Feb 2003 09:04:37 +0200
From: Giorgos Keramidas <keramida@ceid.upatras.gr>
To: Auge Mike <tobe_better@hotmail.com>
Cc: freebsd-questions@FreeBSD.org
Subject: Re: printf ... !
Message-ID: <20030208070437.GB2356@gothmog.gr>
References: <F41iJxkoU8oxlIUZNAj00005f89@hotmail.com>
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On 2003-02-08 01:48, Auge Mike <tobe_better@hotmail.com> wrote:
> I was trying to know how "printf" works in FreeBSD... I hvae reached
> to this point :
>
> #define _write(fd, s, n) \
> 	__syscall(SYS_write, (int)(fd), (const void *)(s), (size_t)(n))

This is the definition of the write(2) system call.  You should also
check the implementation of printf(3) at the libc sources.  Look at
/usr/src/lib/libc/stdio/printf.c for more details about the way
printf() works in userlevel programs.


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