diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_write_add_filter_lrzip.c')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_write_add_filter_lrzip.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_write_add_filter_lrzip.c b/Utilities/cmlibarchive/libarchive/archive_write_add_filter_lrzip.c new file mode 100644 index 000000000..85fdf6af5 --- /dev/null +++ b/Utilities/cmlibarchive/libarchive/archive_write_add_filter_lrzip.c @@ -0,0 +1,192 @@ +/*- + * 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 +#ifdef HAVE_STRING_H +#include <string.h> +#endif + +#include "archive.h" +#include "archive_string.h" +#include "archive_write_private.h" + +struct write_lrzip { + struct archive_write_program_data *pdata; + int compression_level; + enum { lzma = 0, bzip2, gzip, lzo, zpaq } compression; +}; + +static int archive_write_lrzip_open(struct archive_write_filter *); +static int archive_write_lrzip_options(struct archive_write_filter *, + const char *, const char *); +static int archive_write_lrzip_write(struct archive_write_filter *, + const void *, size_t); +static int archive_write_lrzip_close(struct archive_write_filter *); +static int archive_write_lrzip_free(struct archive_write_filter *); + +int +archive_write_add_filter_lrzip(struct archive *_a) +{ + struct archive_write_filter *f = __archive_write_allocate_filter(_a); + struct write_lrzip *data; + + archive_check_magic(_a, ARCHIVE_WRITE_MAGIC, + ARCHIVE_STATE_NEW, "archive_write_add_filter_lrzip"); + + 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 = "lrzip"; + f->code = ARCHIVE_FILTER_LRZIP; + f->data = data; + f->open = archive_write_lrzip_open; + f->options = archive_write_lrzip_options; + f->write = archive_write_lrzip_write; + f->close = archive_write_lrzip_close; + f->free = archive_write_lrzip_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 lrzip program for lrzip compression"); + return (ARCHIVE_WARN); +} + +static int +archive_write_lrzip_options(struct archive_write_filter *f, const char *key, + const char *value) +{ + struct write_lrzip *data = (struct write_lrzip *)f->data; + + if (strcmp(key, "compression") == 0) { + if (value == NULL) + return (ARCHIVE_WARN); + else if (strcmp(value, "bzip2") == 0) + data->compression = bzip2; + else if (strcmp(value, "gzip") == 0) + data->compression = gzip; + else if (strcmp(value, "lzo") == 0) + data->compression = lzo; + else if (strcmp(value, "zpaq") == 0) + data->compression = zpaq; + else + return (ARCHIVE_WARN); + return (ARCHIVE_OK); + } else if (strcmp(key, "compression-level") == 0) { + if (value == NULL || !(value[0] >= '1' && value[0] <= '9') || + value[1] != '\0') + return (ARCHIVE_WARN); + data->compression_level = value[0] - '0'; + return (ARCHIVE_OK); + } + /* 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_lrzip_open(struct archive_write_filter *f) +{ + struct write_lrzip *data = (struct write_lrzip *)f->data; + struct archive_string as; + int r; + + archive_string_init(&as); + archive_strcpy(&as, "lrzip -q"); + + /* Specify compression type. */ + switch (data->compression) { + case lzma:/* default compression */ + break; + case bzip2: + archive_strcat(&as, " -b"); + break; + case gzip: + archive_strcat(&as, " -g"); + break; + case lzo: + archive_strcat(&as, " -l"); + break; + case zpaq: + archive_strcat(&as, " -z"); + break; + } + + /* Specify compression level. */ + if (data->compression_level > 0) { + archive_strcat(&as, " -L "); + archive_strappend_char(&as, '0' + data->compression_level); + } + + r = __archive_write_program_open(f, data->pdata, as.s); + archive_string_free(&as); + return (r); +} + +static int +archive_write_lrzip_write(struct archive_write_filter *f, + const void *buff, size_t length) +{ + struct write_lrzip *data = (struct write_lrzip *)f->data; + + return __archive_write_program_write(f, data->pdata, buff, length); +} + +static int +archive_write_lrzip_close(struct archive_write_filter *f) +{ + struct write_lrzip *data = (struct write_lrzip *)f->data; + + return __archive_write_program_close(f, data->pdata); +} + +static int +archive_write_lrzip_free(struct archive_write_filter *f) +{ + struct write_lrzip *data = (struct write_lrzip *)f->data; + + __archive_write_program_free(data->pdata); + free(data); + return (ARCHIVE_OK); +} |