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108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/*
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* Copyright (C) 2015 Red Hat, Inc.
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*
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* SPDX-License-Identifier: LGPL-2.0+
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "libglnx.h"
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#include "bsdiff/bsdiff.h"
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#include "bsdiff/bspatch.h"
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#include <glib.h>
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#include <stdlib.h>
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#include <gio/gio.h>
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#include <string.h>
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static int
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bzpatch_read (const struct bspatch_stream* stream, void* buffer, int length)
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{
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GInputStream *in = stream->opaque;
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if (length && ! g_input_stream_read (in,
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buffer,
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length,
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NULL,
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NULL))
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return -1;
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return 0;
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}
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static int
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bzdiff_write (struct bsdiff_stream* stream, const void* buffer, int size)
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{
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GOutputStream *out = stream->opaque;
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if (! g_output_stream_write (out,
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buffer,
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size,
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NULL,
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NULL))
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return -1;
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return 0;
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}
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static void
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test_bsdiff (void)
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{
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#define OLD_SIZE 512
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#define NEW_SIZE (512+24)
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struct bsdiff_stream bsdiff_stream;
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struct bspatch_stream bspatch_stream;
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int i;
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g_autofree guint8 *old = g_new (guint8, OLD_SIZE);
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g_autofree guint8 *new = g_new (guint8, NEW_SIZE);
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g_autofree guint8 *new_generated = g_new0 (guint8, NEW_SIZE);
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g_autoptr(GOutputStream) out = g_memory_output_stream_new_resizable ();
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g_autoptr(GInputStream) in = NULL;
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new[0] = 'A';
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for (i = 0; i < OLD_SIZE; i++)
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{
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old[i] = i;
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new[i + 1] = old[i];
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}
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for (i = OLD_SIZE + 1; i < NEW_SIZE; i++)
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new[i] = i;
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bsdiff_stream.malloc = malloc;
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bsdiff_stream.free = free;
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bsdiff_stream.write = bzdiff_write;
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bsdiff_stream.opaque = out;
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g_assert_cmpint (bsdiff (old, OLD_SIZE, new, NEW_SIZE, &bsdiff_stream), ==, 0);
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g_assert (g_output_stream_close (out, NULL, NULL));
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/* Now generate NEW_GENERATED from OLD and OUT. */
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{ g_autoptr(GBytes) bytes = g_memory_output_stream_steal_as_bytes (G_MEMORY_OUTPUT_STREAM (out));
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in = g_memory_input_stream_new_from_bytes (bytes);
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}
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bspatch_stream.read = bzpatch_read;
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bspatch_stream.opaque = in;
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g_assert_cmpint (bspatch (old, OLD_SIZE, new_generated, NEW_SIZE, &bspatch_stream), ==, 0);
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g_assert_cmpint (memcmp (new, new_generated, NEW_SIZE), ==, 0);
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}
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int main (int argc, char **argv)
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{
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g_test_init (&argc, &argv, NULL);
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g_test_add_func ("/bsdiff", test_bsdiff);
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return g_test_run();
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}
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