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BCOPY

Section: Linux Fast-STREAMS DDI/DKI (9)
Updated: 2008-10-31
Index Return to Main Contents

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NAME

bcopy - copy byte strings

SYNOPSIS

#include <linux/string.h>

void bcopy(const void *src, void *dest, size_t len);

ARGUMENTS

src

a pointer to the source address from which to copy.

dest

a pointer to the destination address to which to copy.

len

the number of bytes to copy from src to dest.

INTERFACE

DDI/DKI.

DESCRIPTION

bcopy() copies len bytes from the source address src to the destination address dest. If len is zero, this function has no effect.

RETURN

bcopy() returns void.

ERRORS

bcopy() always succeeds.

CONTEXT

bcopy() can be called from any context, including user context, module procedures, call-outs, callbacks, soft interrupts (tasklets and bottom halves), and interrupt service routines.

MP-STREAMS

bcopy() is MP-safe, provided the caller ensures exclusive access to the memory areas involved.

NOTICES

Linux Fast-STREAMS preserves this deprecated function. memcpy(9) should be used instead. For older STREAMS drivers and modules, it is sufficient to define the macro:

#define bcopy(src, dst, len) (void)memcpy(dst, src, len)

SEE ALSO

bcmp(9), bzero(9), memcpy(9).

BUGS

bcopy() has no known bugs.

COMPATIBILITY

bcopy() is source-level compatible with SVR 4.2 MP DDI/DKI, AIX®, HP-UX®, OSF/1®, Solaris®, UnixWare® and LiS.

See STREAMS(9) for additional compatibility information.

CONFORMANCE

SVR 4.2 MP DDI/DKI[1]; AIX®, HP-UX®, IRIX®, OSF/1®, Solaris® and UnixWare® documentation[2..7]; and LiS[8] source code.

HISTORY

bcopy() first appeared in 4.1BSD. Its use in STREAMS drivers is probably testimony to the fact that Dennis Ritchie implemented the first Stream I/O System on 4.1BSD.

REFERENCES

[1]

USL DDI/DKI, Device Driver Interface/Driver-Kernel Interface (DDI/DKI) Reference Manual for Intel Processors, 1992, (Englewood Cliffs, New Jersey), AT&T UNIX System Laboratories, Inc., Prentice Hall.

[2]

AIX® 5L Version 5.1, AIX 5L Version 5.1 Documentation, 2001, (Boulder, Colorado), Internatonal Business Machines Corp., IBM. <http://publibn.boulder.ibm.com/>

[3]

HP-UX® 11i v2, HP-UX 11i v2 Documentation, 2001, (Palo Alto, California), Hewlett-Packard Company, HP. <http://docs.hp.com/>

[4]

IRIX® 6.5.17, IRIX 6.5 Manual Pages, 2003, (Mountainview, California), Silicon Graphics, Inc., SGI Technical Publications. <http://techpubs.sgi.com/>

[5]

Digital® UNIX (OSF/1.2), Digital UNIX Documentation Library, 2003, (Palo Alto, California), Digital Equipment Corporation, Hewlett-Packard Company. <http://www.true64unix.compaq.com/docs/>

[6]

Solaris® 8, Solaris 8 Docmentation, 2001, (Santa Clara, California), Sun Microsystems, Inc., Sun. <http://docs.sun.com/>

[7]

UnixWare® 7.1.3, UnixWare 7.1.3 (OpenUnix 8) Documentation, 2002, (Lindon, Utah), Caldera International, Inc., Caldera. <http://uw713doc.sco.com/>

[8]

LIS 2.18, Linux STREAMS (LiS) 2.18.6 Source Code, Brian Bidulock, ed., OpenSS7 Corporation. <http://www.openss7.org/>

TRADEMARKS

OpenSS7tm

is a trademark of OpenSS7 Corporation.

Linux®

is a registered trademark of Linus Torvalds.

UNIX®

is a registered trademark of The Open Group.

Solaris®

is a registered trademark of Sun Microsystems.

Other trademarks are the property of their respective owners.

IDENTIFICATION

Linux Fast-STREAMS: Package streams version 0.9.2.4 released 2008-10-31.

Copyright©1997-2008OpenSS7 Corp. All Rights Reserved.
(See roff source for permission notice.)

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Index

NAME

SYNOPSIS

ARGUMENTS

INTERFACE

DESCRIPTION

RETURN

ERRORS

CONTEXT

MP-STREAMS

NOTICES

SEE ALSO

BUGS

COMPATIBILITY

CONFORMANCE

HISTORY

REFERENCES

TRADEMARKS

IDENTIFICATION

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