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Top Forums Programming Copying 1024 bytes data in 3-bytes chunk Post 302513073 by royalibrahim on Tuesday 12th of April 2011 09:31:57 AM
Old 04-12-2011
Copying 1024 bytes data in 3-bytes chunk

Hi,

If I want to copy a 1024 byte data stream in to the target location in 3-bytes chunk, I guess I can use the following script.

Code:
dd bs=1024 count=3 if=/src of=/dest

But, I would like to know, how to do it via a C program. I have tried this with memcpy(), that did not help.
 

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BCOPY(3)						     Linux Programmer's Manual							  BCOPY(3)

NAME
bcopy - copy byte sequence SYNOPSIS
#include <strings.h> void bcopy(const void *src, void *dest, size_t n); DESCRIPTION
The bcopy() function copies n bytes from src to dest. The result is correct, even when both areas overlap. RETURN VALUE
None. CONFORMING TO
4.3BSD. This function is deprecated (marked as LEGACY in POSIX.1-2001): use memcpy(3) or memmove(3) in new programs. Note that the first two arguments are interchanged for memcpy(3) and memmove(3). POSIX.1-2008 removes the specification of bcopy(). SEE ALSO
memccpy(3), memcpy(3), memmove(3), strcpy(3), strncpy(3) COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2009-03-15 BCOPY(3)
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