diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_write_add_filter_grzip.c')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_write_add_filter_grzip.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_write_add_filter_grzip.c b/Utilities/cmlibarchive/libarchive/archive_write_add_filter_grzip.c new file mode 100644 index 000000000..8dc287eae --- /dev/null +++ b/Utilities/cmlibarchive/libarchive/archive_write_add_filter_grzip.c @@ -0,0 +1,135 @@ +/*- + * 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("$FreeBSD$"); + +#ifdef HAVE_ERRNO_H +#include <errno.h> +#endif +#ifdef HAVE_STDLIB_H +#include <stdlib.h> +#endif + +#include "archive.h" +#include "archive_write_private.h" + +struct write_grzip { + struct archive_write_program_data *pdata; +}; + +static int archive_write_grzip_open(struct archive_write_filter *); +static int archive_write_grzip_options(struct archive_write_filter *, + const char *, const char *); +static int archive_write_grzip_write(struct archive_write_filter *, + const void *, size_t); +static int archive_write_grzip_close(struct archive_write_filter *); +static int archive_write_grzip_free(struct archive_write_filter *); + +int +archive_write_add_filter_grzip(struct archive *_a) +{ + struct archive_write_filter *f = __archive_write_allocate_filter(_a); + struct write_grzip *data; + + archive_check_magic(_a, ARCHIVE_WRITE_MAGIC, + ARCHIVE_STATE_NEW, "archive_write_add_filter_grzip"); + + data = calloc(1, sizeof(*data)); + if (data == NULL) { + archive_set_error(_a, ENOMEM, "Can't allocate memory"); + return (ARCHIVE_FATAL); + } + data->pdata = __archive_write_program_allocate(); + if (data->pdata == NULL) { + free(data); + archive_set_error(_a, ENOMEM, "Can't allocate memory"); + return (ARCHIVE_FATAL); + } + + f->name = "grzip"; + f->code = ARCHIVE_FILTER_GRZIP; + f->data = data; + f->open = archive_write_grzip_open; + f->options = archive_write_grzip_options; + f->write = archive_write_grzip_write; + f->close = archive_write_grzip_close; + f->free = archive_write_grzip_free; + + /* Note: This filter always uses an external program, so we + * return "warn" to inform of the fact. */ + archive_set_error(_a, ARCHIVE_ERRNO_MISC, + "Using external grzip program for grzip compression"); + return (ARCHIVE_WARN); +} + +static int +archive_write_grzip_options(struct archive_write_filter *f, const char *key, + const char *value) +{ + (void)f; /* UNUSED */ + (void)key; /* UNUSED */ + (void)value; /* UNUSED */ + /* Note: The "warn" return is just to inform the options + * supervisor that we didn't handle it. It will generate + * a suitable error if no one used this option. */ + return (ARCHIVE_WARN); +} + +static int +archive_write_grzip_open(struct archive_write_filter *f) +{ + struct write_grzip *data = (struct write_grzip *)f->data; + + return __archive_write_program_open(f, data->pdata, "grzip"); +} + +static int +archive_write_grzip_write(struct archive_write_filter *f, + const void *buff, size_t length) +{ + struct write_grzip *data = (struct write_grzip *)f->data; + + return __archive_write_program_write(f, data->pdata, buff, length); +} + +static int +archive_write_grzip_close(struct archive_write_filter *f) +{ + struct write_grzip *data = (struct write_grzip *)f->data; + + return __archive_write_program_close(f, data->pdata); +} + +static int +archive_write_grzip_free(struct archive_write_filter *f) +{ + struct write_grzip *data = (struct write_grzip *)f->data; + + __archive_write_program_free(data->pdata); + free(data); + return (ARCHIVE_OK); +} |