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/*
* Copyright (C) 2023 Patrick McDermott
*
* This file is part of opkg-opk.
*
* opkg-opk is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* opkg-opk is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with opkg-opk. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include "defs.h"
#include "gzip.h"
#include "ustar.h"
#define OPKG_OPK_MAIN_FILE_BUFFER_SIZE_ 8192
struct _opkg_opk_main_file {
FILE *file;
char buffer[OPKG_OPK_MAIN_FILE_BUFFER_SIZE_];
};
static int
_opkg_opk_main_file_read(void *user_data, char **buffer, size_t *size)
{
struct _opkg_opk_main_file *file = user_data;
*buffer = file->buffer;
*size = fread(file->buffer, 1, OPKG_OPK_MAIN_FILE_BUFFER_SIZE_,
file->file);
if (feof(file->file)) {
return OPKG_OPK_END;
} else if (ferror(file->file) || *size == 0) {
return OPKG_OPK_ERROR;
} else {
return OPKG_OPK_OK;
}
}
int
main(int argc, char *argv[])
{
struct _opkg_opk_main_file file;
struct opkg_opk_gzip *gzip;
struct opkg_opk_ustar *ustar;
struct opkg_opk_ustar_member member;
int ret;
file.file = fopen(argv[1], "rb");
if (file.file == NULL) {
return EXIT_FAILURE;
}
gzip = opkg_opk_gzip_init(&_opkg_opk_main_file_read, &file);
if (gzip == NULL) {
fclose(file.file);
return EXIT_FAILURE;
}
ustar = opkg_opk_ustar_init(gzip);
if (ustar == NULL) {
opkg_opk_gzip_free(gzip);
fclose(file.file);
return EXIT_FAILURE;
}
while ((ret = opkg_opk_ustar_list(ustar, &member)) == OPKG_OPK_OK) {
puts(member.name);
}
opkg_opk_gzip_free(gzip);
opkg_opk_ustar_free(ustar);
fclose(file.file);
return EXIT_SUCCESS;
}
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