libarchiveでrarを読み取るためのサンプルソース(バージョン3.3.2時点では動作しない)

LibArchiveDecompressor.c

#ifdef _WIN32
#include "targetver.h"
#define WIN32_LEAN_AND_MEAN
#define STRICT
#define STRICT_CONST
#include <windows.h>
#else
#include <sys/stat.h>
#include <unistd.h>
typedef long la_ssize_t;
#endif

#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <assert.h>

#include "archive.h"
#include "archive_entry.h"


int main()
{
	setlocale(LC_CTYPE, "");

	int r;
	struct archive *a = archive_read_new();
	FILE *fp = fopen("aa.rar", "rb");

	assert(a != NULL);
	assert(fp != NULL);
	archive_read_support_filter_all(a);
	archive_read_support_format_rar(a);
	r = archive_read_open_FILE(a, fp);
	assert(r == ARCHIVE_OK);

	do
	{
		struct archive_entry *ae = NULL;
		r = archive_read_next_header(a, &ae);
		if (r == ARCHIVE_EOF)
			break;
		assert(r == ARCHIVE_OK);

		printf("%s\t%s 0x%04X\n", archive_entry_pathname(ae), archive_entry_strmode(ae), archive_entry_filetype(ae));

		size_t buffsize = archive_entry_size(ae);
		void *buff = malloc(buffsize);

		assert(buff != NULL);

		for (;;) {
			la_ssize_t size;
			size = archive_read_data(a, buff, buffsize);
			assert(size >= 0);

			if (size == 0)
				break;
			//write(1, buff, size);
		}
	} while (1);

	archive_read_free(a);

	return 0;
}