5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * CDDL HEADER START
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland *
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * The contents of this file are subject to the terms of the
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Common Development and Distribution License (the "License").
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * You may not use this file except in compliance with the License.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland *
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * or http://www.opensolaris.org/os/licensing.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * See the License for the specific language governing permissions
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * and limitations under the License.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland *
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * When distributing Covered Code, include this CDDL HEADER in each
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * If applicable, add the following below this CDDL HEADER, with the
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * fields enclosed by brackets "[]" replaced with your own identifying
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * information: Portions Copyright [yyyy] [name of copyright owner]
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland *
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * CDDL HEADER END
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Use is subject to license terms.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/* All Rights Reserved */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <stdio.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <string.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <errno.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <stdlib.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <unistd.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <libgen.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <fcntl.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <sys/types.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <utime.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <sys/stat.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <locale.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <libintl.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include <sys/mman.h>
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * consolidation pkg command library includes
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include "pkglib.h"
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * local pkg command library includes
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include "libinst.h"
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include "libadm.h"
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#include "messages.h"
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * MAXMAPSIZE controls the largest mapping to use at a time; please refer
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * to mmap(2) for details of how this size is incremented and rounded; briefly
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * each mapping request has an additional 16Kb added to it - mappings over
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * 4Mb will be rounded to a 4Mb boundary - thus if there were 8mb, adding
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * in the 16Kb overhead the mapping would use another 4Mb-16kb - that is
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * why there is 16Kb subtracted from the total
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#define MAXMAPSIZE (1024*1024*8)-(1024*16) /* map at most 8MB */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland#define SMALLFILESIZE (32*1024) /* dont mmap files less than 32kb */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Name: copyF
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Description: fast copy of file - use mmap()/write() loop if possible
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Arguments: char *srcPath - name of source file to copy from
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * char *dstPath - name of target file to copy to
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * time_t a_mytime: control setting of access/modification times:
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * == 0 - replicate source file access/modification times
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * != 0 - use specified time for access/modification times
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Returns: int
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * == 0 - successful
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * != 0 - failure
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterlandint
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterlandcopyf(char *a_srcPath, char *a_dstPath, time_t a_mytime)
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland{
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland struct stat srcStatbuf;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland struct utimbuf times;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland int srcFd;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland int dstFd;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland int status;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland char *pt;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* open source file for reading */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland srcFd = open(a_srcPath, O_RDONLY, 0);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (srcFd < 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_OPEN_READ, a_srcPath, errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (-1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* obtain file status of source file */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (fstat(srcFd, &srcStatbuf) != 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_FSTAT, srcFd, a_srcPath, errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(srcFd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (-1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* open target file for writing */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland dstFd = open(a_dstPath, O_WRONLY | O_TRUNC | O_CREAT,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland srcStatbuf.st_mode);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (dstFd < 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* create directory structure if missing */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland pt = a_dstPath;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland while (pt = strchr(pt+1, '/')) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland *pt = '\0';
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (isdir(a_dstPath)) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (mkdir(a_dstPath, 0755)) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_NODIR, a_dstPath,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland *pt = '/';
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(srcFd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (-1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland *pt = '/';
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* attempt to create target file again */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland dstFd = open(a_dstPath, O_WRONLY | O_TRUNC | O_CREAT,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland srcStatbuf.st_mode);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (dstFd < 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_OPEN_WRITE, a_dstPath, errno,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(srcFd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (-1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * source and target files are open: copy data
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland status = copyFile(srcFd, dstFd, a_srcPath, a_dstPath, &srcStatbuf, 0);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(srcFd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(dstFd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * determine how to set access/modification times for target:
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * -- a_mytime == 0: replicate source file access/modification times
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * -- otherwise: use a_mytime for file access/modification times
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (a_mytime == 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland times.actime = srcStatbuf.st_atime;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland times.modtime = srcStatbuf.st_mtime;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland } else {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland times.actime = a_mytime;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland times.modtime = a_mytime;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* set access/modification times for target */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (utime(a_dstPath, &times) != 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_MODTIM, a_dstPath, errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (-1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* return error if copy failed */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (status != 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_READ, a_srcPath, errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (-1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* success! */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (0);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland}
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Name: copyFile
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Description: fast copy of file - use mmap()/write() loop if possible
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Arguments: int srcFd - file descriptor open on source file
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * int dstFd - file descriptor open on target file
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * char *srcPath - name of source file (for error messages)
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * char *dstPath - name of target file (for error messages)
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * struct stat *a_srcStatbuf - stat structure for source file
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * long a_iosize - preferred io size for read/write loop
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Returns: int
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * == 0 - successful
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * != 0 - failure
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterlandint
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah WaterlandcopyFile(int a_srcFd, int a_dstFd, char *a_srcPath, char *a_dstPath,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland struct stat *a_srcStatbuf, long a_iosize)
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland{
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland caddr_t cp;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland off_t filesize = a_srcStatbuf->st_size;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland size_t mapsize = 0;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland size_t munmapsize = 0;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland off_t offset = 0;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland echoDebug(DBG_COPY_FILE, a_srcPath, a_dstPath);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * if the source is a regular file and is not "too small", then cause
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * the file to be mapped into memory
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (S_ISREG(a_srcStatbuf->st_mode) && (filesize > SMALLFILESIZE)) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Determine size of initial mapping. This will determine the
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * size of the address space chunk we work with. This initial
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * mapping size will be used to perform munmap() in the future.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland mapsize = MAXMAPSIZE;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (filesize < mapsize) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland mapsize = filesize;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * remember size of mapping to "unmap" - if the source file
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * exceeds MAXMAPSIZE bytes, then the final mapping of the
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * source file will be less than MAXMAPSIZE, and we need to
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * make sure that the entire mapping is unmapped when done.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland munmapsize = mapsize;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* map the first segment of the source into memory */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland cp = mmap((caddr_t)NULL, mapsize, PROT_READ,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (MAP_SHARED|MAP_ALIGN), a_srcFd, (off_t)0);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (cp == MAP_FAILED) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland mapsize = 0; /* can't mmap today */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * if the source was not mapped into memory, copy via read/write loop
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (mapsize == 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland char *buf = (char *)NULL;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland size_t blocksize;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland int pagesize = getpagesize();
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* set blocksize for copy */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland blocksize = a_iosize;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if ((blocksize == 0) || (blocksize > SMALLFILESIZE)) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland blocksize = SMALLFILESIZE;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland } else if (blocksize < pagesize) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland blocksize = pagesize;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* allocate i/o transfer buffer */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland buf = memalign((size_t)pagesize, blocksize);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (buf == (char *)NULL) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_COPY_MEMORY, a_srcPath, errno,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* copy the file contents */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland for (;;) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland ssize_t n;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* read next block of data */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland n = read(a_srcFd, buf, blocksize);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (n == 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* end of file - return success */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) free(buf);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (0);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland } else if (n < 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* read error - return error */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_READ, a_srcPath,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) free(buf);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* write out block of data just read in */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (vfpSafeWrite(a_dstFd, buf, (size_t)n) != n) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* short write/write error - return error */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_WRITE, a_dstPath,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) free(buf);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * the source has been mapped into memory, copy via mappings
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland for (;;) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland ssize_t nbytes;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* write first mappings worth of data */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland nbytes = write(a_dstFd, cp, mapsize);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * if we write less than the mmaped size it's due to a
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * media error on the input file or out of space on
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * the output file. So, try again, and look for errno.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if ((nbytes >= 0) && (nbytes != (ssize_t)mapsize)) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland size_t remains;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland remains = mapsize - nbytes;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland while (remains > 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland nbytes = write(a_dstFd,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (cp + mapsize - remains), remains);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (nbytes >= 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland remains -= nbytes;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (remains == 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland nbytes = mapsize;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland continue;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* i/o error - report and exit */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (errno == ENOSPC) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_WRITE, a_dstPath,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland } else {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_READ, a_srcPath,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* unmap source file mapping */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) munmap(cp, munmapsize);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * although the write manual page doesn't specify this
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * as a possible errno, it is set when the nfs read
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * via the mmap'ed file is accessed, so report the
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * problem as a source access problem, not a target file
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * problem
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (nbytes < 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (errno == EACCES) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_READ, a_srcPath,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland } else {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_WRITE, a_dstPath,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno, strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* unmap source file mapping */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) munmap(cp, munmapsize);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland filesize -= nbytes;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (filesize == 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland break;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland offset += nbytes;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (filesize < mapsize) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland mapsize = filesize;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* map next segment of file on top of existing mapping */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland cp = mmap(cp, mapsize, PROT_READ, (MAP_SHARED|MAP_FIXED),
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland a_srcFd, offset);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (cp == MAP_FAILED) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland progerr(ERR_MAPFAILED, a_srcPath, errno,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland strerror(errno));
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* unmap source file mapping */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) munmap(cp, munmapsize);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* unmap source file mapping */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) munmap(cp, munmapsize);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (0);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland}
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland/*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Name: openLocal
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Description: open a file and assure that the descriptor returned is open on
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * a file that is local to the current system - if the file is not
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * local to this system, copy the file to a temporary file first,
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * and then pass a handle back opened on the temporary file
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Arguments: a_path - [RO, *RO] - (char *)
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Pointer to string representing the path to the file
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * to open
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * a_oflag - [RO, *RO] - (int)
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Integer representing the "mode" bits for an open(2) call
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * a_tmpdir - [RO, *RO] - (char *)
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Pointer to string representing the path to a directory
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * where a temporary copy of the file can be placed if
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * the source file is not local to this system. If this is
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * NULL or does not exist, P_tmpdir is used.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * Returns: int
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * >= 0 - file descriptor opened on the file
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * == -1 - failed to open - errno contains error code
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * NOTE: If the file is not local and is copied locally, the file is
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * setup in such a way that it will be removed when the last
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * file descriptor opened on the file is closed - there is no need
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * to know the path to the temporary file or to remove it
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * when done.
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterlandint
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah WaterlandopenLocal(char *a_path, int a_oflag, char *a_tmpdir)
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland{
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland char *bn;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland char template[PATH_MAX];
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland int fd;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland int lerrno;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland int n;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland int tmpFd;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland struct stat statbuf;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* open source file */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland fd = open(a_path, a_oflag);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (fd < 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (fd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* return open fd if the source file is not remote */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (!isFdRemote(fd)) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (fd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /*
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland * source file is remote - must make a local copy
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* get the source file's status */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland n = fstat(fd, &statbuf);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (n < 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland lerrno = errno;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(fd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno = lerrno;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (-1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* generate unique temporary file name */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if ((a_tmpdir == (char *)NULL) || (*a_tmpdir == '\0') ||
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (isdir(a_tmpdir) != 0)) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland a_tmpdir = P_tmpdir;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland bn = basename(a_path);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland n = strlen(a_tmpdir);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland n = snprintf(template, sizeof (template), "%s%s%sXXXXXX",
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland a_tmpdir, a_tmpdir[n-1] == '/' ? "" : "/", bn);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (n > sizeof (template)) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(fd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (EINVAL);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* create the temporary file and open it */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland tmpFd = mkstemp(template);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (tmpFd < 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland lerrno = errno;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(fd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno = lerrno;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (tmpFd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* unlink the file so when it is closed it is automatically deleted */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) unlink(template);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* copy the source file to the temporary file */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland n = copyFile(fd, tmpFd, a_path, template, &statbuf, 0L);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland lerrno = errno;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(fd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland if (n != 0) {
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland (void) close(tmpFd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland errno = lerrno;
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (-1);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland }
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland /* return handle to temporary file created */
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland return (tmpFd);
5c51f1241dbbdf2656d0e10011981411ed0c9673Moriah Waterland}