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From: echarne@orion.oac.uci.edu (Eli B. Charne)
Newsgroups: comp.unix.questions
Subject: Re: bcopy() bzero()
Message-ID: <4601@orion.cf.uci.edu>
Date: 10 Feb 90 22:13:34 GMT
References: <11387@attctc.Dallas.TX.US>
Distribution: usa
Organization: University of California, Irvine
Lines: 33

larryd1@attctc.Dallas.TX.US (Larry Clark) writes:


>	I'm porting sources from the bsd world into a Sys V environment
>	and need an explanation of bcopy() and bzero().  Would someone
>	in a bsd environment explain the parameters of each call and
>	possibly map them to memcpy() and memset()?


     Well, here's how bcopy and bzero work:

	 bcopy(b1, b2, length)
	 char *b1, *b2;
	 unsigned int length;

     bcopy() Copies length bytes from the "string" b1, and copies them into
     string b2.  I was under the impression this was exactly what memcpy()
     does, but perhaps the order of arguments is changed.

	 bzero(b, length)
	 char *b;
	 unsigned int length;
    
    bzero() just sets length bytes pointed to by b, to the value zero.

					       Hope this helps

						    -Eli

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Eli B. Charne              INTERNET: echarne@ORION.OAC.UCI.EDU
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