xref: /titanic_51/usr/src/lib/libbc/libc/gen/sys5/sgetl.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*      Copyright (c) 1984 AT&T */
23*7c478bd9Sstevel@tonic-gate /*        All Rights Reserved   */
24*7c478bd9Sstevel@tonic-gate 
25*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
26*7c478bd9Sstevel@tonic-gate /*
27*7c478bd9Sstevel@tonic-gate  * Provide machine independent transfer of longs.
28*7c478bd9Sstevel@tonic-gate  */
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate /*
31*7c478bd9Sstevel@tonic-gate  * The intent here is to provide a means to make the value of
32*7c478bd9Sstevel@tonic-gate  * bytes in an io-buffer correspond to the value of a long
33*7c478bd9Sstevel@tonic-gate  * in the memory while doing the io a `long' at a time.
34*7c478bd9Sstevel@tonic-gate  * Files written and read in this way are machine-independent.
35*7c478bd9Sstevel@tonic-gate  *
36*7c478bd9Sstevel@tonic-gate  */
37*7c478bd9Sstevel@tonic-gate #include <values.h>
38*7c478bd9Sstevel@tonic-gate 
39*7c478bd9Sstevel@tonic-gate long  sgetl(buffer)
40*7c478bd9Sstevel@tonic-gate register char *buffer;
41*7c478bd9Sstevel@tonic-gate {
42*7c478bd9Sstevel@tonic-gate 	 register long l = 0;
43*7c478bd9Sstevel@tonic-gate 	 register int i = BITSPERBYTE * sizeof(long);
44*7c478bd9Sstevel@tonic-gate 
45*7c478bd9Sstevel@tonic-gate 	 while ((i -= BITSPERBYTE) >= 0)
46*7c478bd9Sstevel@tonic-gate 			 l |= (short) ((unsigned char) *buffer++) << i;
47*7c478bd9Sstevel@tonic-gate 	 return  l;
48*7c478bd9Sstevel@tonic-gate  }
49*7c478bd9Sstevel@tonic-gate 
50