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From phroc...@apache.org
Subject [12/51] [partial] nifi-minifi-cpp git commit: MINIFICPP-72: Add Tar and Zip Support for MergeContent
Date Fri, 20 Oct 2017 17:18:23 GMT
http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/3781b52f/thirdparty/libarchive-3.3.2/libarchive/archive_read_support_format_raw.c
----------------------------------------------------------------------
diff --git a/thirdparty/libarchive-3.3.2/libarchive/archive_read_support_format_raw.c b/thirdparty/libarchive-3.3.2/libarchive/archive_read_support_format_raw.c
new file mode 100644
index 0000000..efa2c6a
--- /dev/null
+++ b/thirdparty/libarchive-3.3.2/libarchive/archive_read_support_format_raw.c
@@ -0,0 +1,190 @@
+/*-
+ * Copyright (c) 2003-2009 Tim Kientzle
+ * 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(S) ``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(S) 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.
+ */
+#include "archive_platform.h"
+__FBSDID("$FreeBSD: head/lib/libarchive/archive_read_support_format_raw.c 201107 2009-12-28
03:25:33Z kientzle $");
+
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#include "archive.h"
+#include "archive_entry.h"
+#include "archive_private.h"
+#include "archive_read_private.h"
+
+struct raw_info {
+	int64_t offset; /* Current position in the file. */
+	int64_t unconsumed;
+	int     end_of_file;
+};
+
+static int	archive_read_format_raw_bid(struct archive_read *, int);
+static int	archive_read_format_raw_cleanup(struct archive_read *);
+static int	archive_read_format_raw_read_data(struct archive_read *,
+		    const void **, size_t *, int64_t *);
+static int	archive_read_format_raw_read_data_skip(struct archive_read *);
+static int	archive_read_format_raw_read_header(struct archive_read *,
+		    struct archive_entry *);
+
+int
+archive_read_support_format_raw(struct archive *_a)
+{
+	struct raw_info *info;
+	struct archive_read *a = (struct archive_read *)_a;
+	int r;
+
+	archive_check_magic(_a, ARCHIVE_READ_MAGIC,
+	    ARCHIVE_STATE_NEW, "archive_read_support_format_raw");
+
+	info = (struct raw_info *)calloc(1, sizeof(*info));
+	if (info == NULL) {
+		archive_set_error(&a->archive, ENOMEM,
+		    "Can't allocate raw_info data");
+		return (ARCHIVE_FATAL);
+	}
+
+	r = __archive_read_register_format(a,
+	    info,
+	    "raw",
+	    archive_read_format_raw_bid,
+	    NULL,
+	    archive_read_format_raw_read_header,
+	    archive_read_format_raw_read_data,
+	    archive_read_format_raw_read_data_skip,
+	    NULL,
+	    archive_read_format_raw_cleanup,
+	    NULL,
+	    NULL);
+	if (r != ARCHIVE_OK)
+		free(info);
+	return (r);
+}
+
+/*
+ * Bid 1 if this is a non-empty file.  Anyone who can really support
+ * this should outbid us, so it should generally be safe to use "raw"
+ * in conjunction with other formats.  But, this could really confuse
+ * folks if there are bid errors or minor file damage, so we don't
+ * include "raw" as part of support_format_all().
+ */
+static int
+archive_read_format_raw_bid(struct archive_read *a, int best_bid)
+{
+	if (best_bid < 1 && __archive_read_ahead(a, 1, NULL) != NULL)
+		return (1);
+	return (-1);
+}
+
+/*
+ * Mock up a fake header.
+ */
+static int
+archive_read_format_raw_read_header(struct archive_read *a,
+    struct archive_entry *entry)
+{
+	struct raw_info *info;
+
+	info = (struct raw_info *)(a->format->data);
+	if (info->end_of_file)
+		return (ARCHIVE_EOF);
+
+	a->archive.archive_format = ARCHIVE_FORMAT_RAW;
+	a->archive.archive_format_name = "raw";
+	archive_entry_set_pathname(entry, "data");
+	archive_entry_set_filetype(entry, AE_IFREG);
+	archive_entry_set_perm(entry, 0644);
+	/* I'm deliberately leaving most fields unset here. */
+	return (ARCHIVE_OK);
+}
+
+static int
+archive_read_format_raw_read_data(struct archive_read *a,
+    const void **buff, size_t *size, int64_t *offset)
+{
+	struct raw_info *info;
+	ssize_t avail;
+
+	info = (struct raw_info *)(a->format->data);
+
+	/* Consume the bytes we read last time. */
+	if (info->unconsumed) {
+		__archive_read_consume(a, info->unconsumed);
+		info->unconsumed = 0;
+	}
+
+	if (info->end_of_file)
+		return (ARCHIVE_EOF);
+
+	/* Get whatever bytes are immediately available. */
+	*buff = __archive_read_ahead(a, 1, &avail);
+	if (avail > 0) {
+		/* Return the bytes we just read */
+		*size = avail;
+		*offset = info->offset;
+		info->offset += *size;
+		info->unconsumed = avail;
+		return (ARCHIVE_OK);
+	} else if (0 == avail) {
+		/* Record and return end-of-file. */
+		info->end_of_file = 1;
+		*size = 0;
+		*offset = info->offset;
+		return (ARCHIVE_EOF);
+	} else {
+		/* Record and return an error. */
+		*size = 0;
+		*offset = info->offset;
+		return ((int)avail);
+	}
+}
+
+static int
+archive_read_format_raw_read_data_skip(struct archive_read *a)
+{
+	struct raw_info *info = (struct raw_info *)(a->format->data);
+
+	/* Consume the bytes we read last time. */
+	if (info->unconsumed) {
+		__archive_read_consume(a, info->unconsumed);
+		info->unconsumed = 0;
+	}
+	info->end_of_file = 1;
+	return (ARCHIVE_OK);
+}
+
+static int
+archive_read_format_raw_cleanup(struct archive_read *a)
+{
+	struct raw_info *info;
+
+	info = (struct raw_info *)(a->format->data);
+	free(info);
+	a->format->data = NULL;
+	return (ARCHIVE_OK);
+}


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