diff options
Diffstat (limited to 'lib/libarchive/test/read_open_memory.c')
| -rw-r--r-- | lib/libarchive/test/read_open_memory.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/lib/libarchive/test/read_open_memory.c b/lib/libarchive/test/read_open_memory.c deleted file mode 100644 index db0de85..0000000 --- a/lib/libarchive/test/read_open_memory.c +++ /dev/null @@ -1,167 +0,0 @@ -/*- - * Copyright (c) 2003-2007 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 "test.h" -__FBSDID("$FreeBSD$"); - -#include <errno.h> -#include <stdlib.h> -#include <string.h> - -/* - * Read an archive from a block of memory. - * - * This is identical to archive_read_open_memory(), except - * that it goes out of its way to be a little bit unpleasant, - * in order to better test the libarchive internals. - */ - -struct read_memory_data { - unsigned char *buffer; - unsigned char *end; - size_t read_size; - size_t copy_buff_size; - size_t copy_buff_offset; - char *copy_buff; -}; - -static int memory_read_close(struct archive *, void *); -static int memory_read_open(struct archive *, void *); -static off_t memory_read_skip(struct archive *, void *, off_t request); -static ssize_t memory_read(struct archive *, void *, const void **buff); -static int read_open_memory_internal(struct archive *a, void *buff, - size_t size, size_t read_size, int fullapi); - - -int -read_open_memory(struct archive *a, void *buff, size_t size, size_t read_size) -{ - return read_open_memory_internal(a, buff, size, read_size, 1); -} - -/* - * As above, but don't register any optional part of the API, to verify - * that internals work correctly with just the minimal entry points. - */ -int -read_open_memory2(struct archive *a, void *buff, size_t size, size_t read_size) -{ - return read_open_memory_internal(a, buff, size, read_size, 0); -} - -static int -read_open_memory_internal(struct archive *a, void *buff, - size_t size, size_t read_size, int fullapi) -{ - struct read_memory_data *mine; - - mine = (struct read_memory_data *)malloc(sizeof(*mine)); - if (mine == NULL) { - archive_set_error(a, ENOMEM, "No memory"); - return (ARCHIVE_FATAL); - } - memset(mine, 0, sizeof(*mine)); - mine->buffer = (unsigned char *)buff; - mine->end = mine->buffer + size; - mine->read_size = read_size; - mine->copy_buff_offset = 32; - mine->copy_buff_size = read_size + mine->copy_buff_offset * 2; - mine->copy_buff = malloc(mine->copy_buff_size); - memset(mine->copy_buff, 0xA5, mine->copy_buff_size); - if (fullapi) - return (archive_read_open2(a, mine, memory_read_open, - memory_read, memory_read_skip, memory_read_close)); - else - return (archive_read_open2(a, mine, NULL, - memory_read, NULL, memory_read_close)); -} - -/* - * There's nothing to open. - */ -static int -memory_read_open(struct archive *a, void *client_data) -{ - (void)a; /* UNUSED */ - (void)client_data; /* UNUSED */ - return (ARCHIVE_OK); -} - -/* - * In order to exercise libarchive's internal read-combining logic, - * we deliberately copy data for each read to a separate buffer. - * That way, code that runs off the end of the provided data - * will screw up. - */ -static ssize_t -memory_read(struct archive *a, void *client_data, const void **buff) -{ - struct read_memory_data *mine = (struct read_memory_data *)client_data; - size_t size; - - (void)a; /* UNUSED */ - size = mine->end - mine->buffer; - if (size > mine->read_size) - size = mine->read_size; - else - memset(mine->copy_buff, 0xA5, mine->copy_buff_size); - memcpy(mine->copy_buff + mine->copy_buff_offset, mine->buffer, size); - *buff = mine->copy_buff + mine->copy_buff_offset; - - mine->buffer += size; - return ((ssize_t)size); -} - -/* - * How mean can a skip() routine be? Let's try to find out. - */ -static off_t -memory_read_skip(struct archive *a, void *client_data, off_t skip) -{ - struct read_memory_data *mine = (struct read_memory_data *)client_data; - - (void)a; /* UNUSED */ - /* We can't skip by more than is available. */ - if ((off_t)skip > (off_t)(mine->end - mine->buffer)) - skip = mine->end - mine->buffer; - /* Always do small skips by prime amounts. */ - if (skip > 71) - skip = 71; - mine->buffer += skip; - return (skip); -} - -/* - * Close is just cleaning up our one small bit of data. - */ -static int -memory_read_close(struct archive *a, void *client_data) -{ - struct read_memory_data *mine = (struct read_memory_data *)client_data; - (void)a; /* UNUSED */ - free(mine->copy_buff); - free(mine); - return (ARCHIVE_OK); -} |
