diff options
Diffstat (limited to 'archivers/libarchive/files/libarchive/archive_write_open_memory.c')
| -rw-r--r-- | archivers/libarchive/files/libarchive/archive_write_open_memory.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/archivers/libarchive/files/libarchive/archive_write_open_memory.c b/archivers/libarchive/files/libarchive/archive_write_open_memory.c deleted file mode 100644 index d235ca01dc8..00000000000 --- a/archivers/libarchive/files/libarchive/archive_write_open_memory.c +++ /dev/null @@ -1,126 +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 "archive_platform.h" -__FBSDID("$FreeBSD: src/lib/libarchive/archive_write_open_memory.c,v 1.3 2007/01/09 08:05:56 kientzle Exp $"); - -#include <errno.h> -#include <stdlib.h> -#include <string.h> - -#include "archive.h" - -/* - * This is a little tricky. I used to allow the - * compression handling layer to fork the compressor, - * which means this write function gets invoked in - * a separate process. That would, of course, make it impossible - * to actually use the data stored into memory here. - * Fortunately, none of the compressors fork today and - * I'm reluctant to use that route in the future but, if - * forking compressors ever do reappear, this will have - * to get a lot more complicated. - */ - -struct write_memory_data { - size_t used; - size_t size; - size_t * client_size; - unsigned char * buff; -}; - -static int memory_write_close(struct archive *, void *); -static int memory_write_open(struct archive *, void *); -static ssize_t memory_write(struct archive *, void *, const void *buff, size_t); - -/* - * Client provides a pointer to a block of memory to receive - * the data. The 'size' param both tells us the size of the - * client buffer and lets us tell the client the final size. - */ -int -archive_write_open_memory(struct archive *a, void *buff, size_t buffSize, size_t *used) -{ - struct write_memory_data *mine; - - mine = (struct write_memory_data *)malloc(sizeof(*mine)); - if (mine == NULL) { - archive_set_error(a, ENOMEM, "No memory"); - return (ARCHIVE_FATAL); - } - memset(mine, 0, sizeof(*mine)); - mine->buff = buff; - mine->size = buffSize; - mine->client_size = used; - return (archive_write_open(a, mine, - memory_write_open, memory_write, memory_write_close)); -} - -static int -memory_write_open(struct archive *a, void *client_data) -{ - struct write_memory_data *mine; - mine = client_data; - mine->used = 0; - if (mine->client_size != NULL) - *mine->client_size = mine->used; - /* Disable padding if it hasn't been set explicitly. */ - if (-1 == archive_write_get_bytes_in_last_block(a)) - archive_write_set_bytes_in_last_block(a, 1); - return (ARCHIVE_OK); -} - -/* - * Copy the data into the client buffer. - * Note that we update mine->client_size on every write. - * In particular, this means the client can follow exactly - * how much has been written into their buffer at any time. - */ -static ssize_t -memory_write(struct archive *a, void *client_data, const void *buff, size_t length) -{ - struct write_memory_data *mine; - mine = client_data; - - if (mine->used + length > mine->size) { - archive_set_error(a, ENOMEM, "Buffer exhausted"); - return (ARCHIVE_FATAL); - } - memcpy(mine->buff + mine->used, buff, length); - mine->used += length; - if (mine->client_size != NULL) - *mine->client_size = mine->used; - return (length); -} - -static int -memory_write_close(struct archive *a, void *client_data) -{ - struct write_memory_data *mine; - (void)a; /* UNUSED */ - mine = client_data; - free(mine); - return (ARCHIVE_OK); -} |