initial import of NetBSD tree

1 files changed, 184 insertions, 0 deletions

diff --git a/usr.bin/ar/replace.c b/usr.bin/ar/replace.c
new file mode 100644
index 00000000000..93a201043cf
--- /dev/null
+++ b/usr.bin/ar/replace.c
@@ -0,0 +1,184 @@
+/*	$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";
+#else
+static char rcsid[] = "$NetBSD: replace.c,v 1.6 1995/03/26 03:28:01 glass 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;
+
+	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);
+}