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Sprite 1984 - 1993
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Sprite 1984 - 1993.iso
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unixSyscall
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RCS
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lseek.c,v
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1991-11-27
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167 lines
head 1.4;
branch ;
access ;
symbols sprited:1.4.1;
locks ; strict;
comment @ * @;
1.4
date 88.07.29.17.40.26; author ouster; state Exp;
branches 1.4.1.1;
next 1.3;
1.3
date 88.07.28.17.29.06; author ouster; state Exp;
branches ;
next 1.2;
1.2
date 88.07.25.10.37.24; author ouster; state Exp;
branches ;
next 1.1;
1.1
date 88.06.19.14.31.37; author ouster; state Exp;
branches ;
next ;
1.4.1.1
date 91.11.27.13.13.33; author kupfer; state Exp;
branches ;
next ;
desc
@@
1.4
log
@Lint.
@
text
@/*
* lseek.c --
*
* Procedure to map from Unix access system call to Sprite.
*
* Copyright 1986 Regents of the University of California
* All rights reserved.
*/
#ifndef lint
static char rcsid[] = "$Header: lseek.c,v 1.3 88/07/28 17:29:06 ouster Exp $ SPRITE (Berkeley)";
#endif not lint
#include <sprite.h>
#include "compatInt.h"
#include <fs.h>
#include <sys/file.h>
#include <errno.h>
/*
*----------------------------------------------------------------------
*
* lseek --
*
* procedure for Unix lseek call.
*
* Results:
* the old offset if the IOC_Reposition call was successful.
* UNIX_ERROR is returned if IOC_Reposition failed.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
long
lseek(filedes, offset, whence)
int filedes; /* array of stream identifiers */
long offset;
int whence;
{
ReturnStatus status;
int base;
int newOffset;
switch(whence) {
case L_SET:
base = IOC_BASE_ZERO;
break;
case L_INCR:
base = IOC_BASE_CURRENT;
break;
case L_XTND:
base = IOC_BASE_EOF;
break;
default:
errno = EINVAL;
return(UNIX_ERROR);
}
status = Ioc_Reposition(filedes, base, (int) offset, &newOffset);
if (status != SUCCESS) {
errno = Compat_MapCode(status);
return(UNIX_ERROR);
} else {
return(newOffset);
}
}
@
1.4.1.1
log
@Initial branch for Sprite server.
@
text
@d11 1
a11 1
static char rcsid[] = "$Header: /sprite/src/lib/c/unixSyscall/RCS/lseek.c,v 1.4 88/07/29 17:40:26 ouster Exp $ SPRITE (Berkeley)";
@
1.3
log
@Change parameters to match UNIX.
@
text
@d11 1
a11 1
static char rcsid[] = "$Header: lseek.c,v 1.2 88/07/25 10:37:24 ouster Exp $ SPRITE (Berkeley)";
d62 1
a62 1
status = Ioc_Reposition(filedes, base, offset, &newOffset);
@
1.2
log
@Must declare lseek "long" (even though manual says "int").
@
text
@d11 1
a11 1
static char rcsid[] = "$Header: lseek.c,v 1.1 88/06/19 14:31:37 ouster Exp $ SPRITE (Berkeley)";
d41 1
a41 1
int offset;
@
1.1
log
@Initial revision
@
text
@d11 1
a11 1
static char rcsid[] = "$Header: lseek.c,v 1.4 87/06/25 17:39:49 deboor Exp $ SPRITE (Berkeley)";
d38 1
a38 1
int
@