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/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* Copyright (C) 1999-2001 Erik Andersen <andersee@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "libbb.h"
extern size_t copyfd(int fd1, int fd2)
{
char buf[32768], *writebuf;
int status = TRUE;
size_t totalread = 0, bytesread, byteswritten;
while(status) {
bytesread = read(fd1, &buf, sizeof(buf));
if(bytesread == -1) {
error_msg("read: %s", strerror(errno));
status = FALSE;
break;
}
byteswritten = 0;
writebuf = buf;
while(bytesread) {
byteswritten = write( fd2, &writebuf, bytesread );
if(byteswritten == -1) {
error_msg("write: %s", strerror(errno));
status = FALSE;
break;
}
bytesread -= byteswritten;
writebuf += byteswritten;
}
}
if ( status == TRUE )
return totalread;
else
return -1;
}
/* END CODE */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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