Lionel Sambuc 0a6a1f1d05 NetBSD re-synchronization of the source tree
This brings our tree to NetBSD 7.0, as found on -current on the
10-10-2015.

This updates:
 - LLVM to 3.6.1
 - GCC to GCC 5.1
 - Replace minix/commands/zdump with usr.bin/zdump
 - external/bsd/libelf has moved to /external/bsd/elftoolchain/
 - Import ctwm
 - Drop sprintf from libminc

Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
2016-01-13 20:32:14 +01:00

30 lines
586 B
C

/* $NetBSD: pread.c,v 1.1.1.5 2015/01/02 20:34:27 christos Exp $ */
#include "file.h"
#ifndef lint
#if 0
FILE_RCSID("@(#)$File: pread.c,v 1.3 2014/09/15 19:11:25 christos Exp $")
#else
__RCSID("$NetBSD: pread.c,v 1.1.1.5 2015/01/02 20:34:27 christos Exp $");
#endif
#endif /* lint */
#include <fcntl.h>
#include <unistd.h>
ssize_t
pread(int fd, void *buf, size_t len, off_t off) {
off_t old;
ssize_t rv;
if ((old = lseek(fd, off, SEEK_SET)) == -1)
return -1;
if ((rv = read(fd, buf, len)) == -1)
return -1;
if (lseek(fd, old, SEEK_SET) == -1)
return -1;
return rv;
}