/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* $OpenBSD: replace.c,v 1.2 1996/06/26 05:31:23 deraadt Exp $ */ /* $NetBSD: replace.c,v 1.6 1995/03/26 03:28:01 glass Exp $ */ /*- * Copyright (c) 1990, 1993, 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Hugh Smith at The University of Guelph. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint #if 0 static char sccsid[] = "@(#)replace.c 8.3 (Berkeley) 4/2/94"; static char rcsid[] = "$OpenBSD: replace.c,v 1.2 1996/06/26 05:31:23 deraadt Exp $"; #endif #endif /* not lint */ #include <sys/param.h> #include <sys/stat.h> #include <ar.h> #include <dirent.h> #include <err.h> #include <fcntl.h> #include <stdio.h> #include <string.h> #include <unistd.h> #include "archive.h" #include "extern.h" /* * replace -- * Replace or add named members to archive. Entries already in the * archive are swapped in place. Others are added before or after * the key entry, based on the a, b and i options. If the u option * is specified, modification dates select for replacement. */ int replace(argv) char **argv; { char *file; int afd, curfd, errflg, exists, mods, sfd, tfd1, tfd2; struct stat sb; CF cf; off_t size, tsize; tsize = 0; errflg = 0; /* * If doesn't exist, simply append to the archive. There's * a race here, but it's pretty short, and not worth fixing. */ exists = !stat(archive, &sb); afd = open_archive(O_CREAT|O_RDWR); if (!exists) { tfd1 = -1; tfd2 = tmp(); goto append; } tfd1 = tmp(); /* Files before key file. */ tfd2 = tmp(); /* Files after key file. */ /* * Break archive into two parts -- entries before and after the key * entry. If positioning before the key, place the key at the * beginning of the after key entries and if positioning after the * key, place the key at the end of the before key entries. Put it * all back together at the end. */ mods = (options & (AR_A|AR_B)); for (curfd = tfd1; get_arobj(afd);) { if (*argv && (file = files(argv))) { if ((sfd = open(file, O_RDONLY)) < 0) { errflg = 1; warn("%s", file); goto useold; } (void)fstat(sfd, &sb); if (options & AR_U && sb.st_mtime <= chdr.date) { close(sfd); goto useold; } if (options & AR_V) (void)printf("r - %s\n", file); /* Read from disk, write to an archive; pad on write */ SETCF(sfd, file, curfd, tname, WPAD); put_arobj(&cf, &sb); (void)close(sfd); skip_arobj(afd); continue; } if (mods && compare(posname)) { mods = 0; if (options & AR_B) curfd = tfd2; /* Read and write to an archive; pad on both. */ SETCF(afd, archive, curfd, tname, RPAD|WPAD); put_arobj(&cf, (struct stat *)NULL); if (options & AR_A) curfd = tfd2; } else { /* Read and write to an archive; pad on both. */ useold: SETCF(afd, archive, curfd, tname, RPAD|WPAD); put_arobj(&cf, (struct stat *)NULL); } } if (mods) { warnx("%s: archive member not found", posarg); close_archive(afd); return (1); } /* Append any left-over arguments to the end of the after file. */ append: while ((file = *argv++)) { if (options & AR_V) (void)printf("a - %s\n", file); if ((sfd = open(file, O_RDONLY)) < 0) { errflg = 1; warn("%s", file); continue; } (void)fstat(sfd, &sb); /* Read from disk, write to an archive; pad on write. */ SETCF(sfd, file, options & (AR_A|AR_B) ? tfd1 : tfd2, tname, WPAD); put_arobj(&cf, &sb); (void)close(sfd); } (void)lseek(afd, (off_t)SARMAG, SEEK_SET); SETCF(tfd1, tname, afd, archive, NOPAD); if (tfd1 != -1) { tsize = size = lseek(tfd1, (off_t)0, SEEK_CUR); (void)lseek(tfd1, (off_t)0, SEEK_SET); copy_ar(&cf, size); } else tsize = 0; tsize += size = lseek(tfd2, (off_t)0, SEEK_CUR); (void)lseek(tfd2, (off_t)0, SEEK_SET); cf.rfd = tfd2; copy_ar(&cf, size); (void)ftruncate(afd, tsize + SARMAG); close_archive(afd); return (errflg); }