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Subject: socsvn commit: r240259 - soc2012/jhagewood/sdiff
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Author: jhagewood
Date: Fri Aug 10 21:40:03 2012
New Revision: 240259
URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=240259

Log:
  gzip decompression sdiff

Added:
  soc2012/jhagewood/sdiff/decompress.c

Added: soc2012/jhagewood/sdiff/decompress.c
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ soc2012/jhagewood/sdiff/decompress.c	Fri Aug 10 21:40:03 2012	(r240259)
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2012 Jesse Hagewood <jhagewood@freebsd.org>
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ */
+
+#if 0
+#ifndef lint
+static char sccsid[] = "@(#)decompress.c 6/6/93";
+#endif
+#endif /* not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <zlib.h>
+
+#ifndef WITHOUT_BZIP2
+#include <bzlib.h>
+#endif
+
+#include "common.h"
+
+#define MAXBUFSIZE (32 * 1024)
+
+/* Decompresses a gzip file and returns a regular FILE. */
+FILE *
+decompressfile(char *filename, char *mode) {
+
+	FILE *file;
+	char *buf = "";
+	gzFile comprfile; 
+	
+	if (comprfile = gzopen(filename, mode) == Z_NULL)
+		err(1, "Could not open compressed file %s.", filename);
+	gzread(comprfile, buf, MAXBUFSIZE);
+	fputs(buf, file);
+	 
+	return file;
+}