libscan/libscan/arc/arc.h

#ifndef SCAN_ARC_H
#define SCAN_ARC_H

#include <archive.h>
#include <archive_entry.h>
#include <fcntl.h>
#include "../scan.h"

# define ARC_SKIPPED -1
#define ARC_MODE_SKIP 0
#define ARC_MODE_LIST 1
#define ARC_MODE_SHALLOW 2
#define ARC_MODE_RECURSE 3
typedef int archive_mode_t;

typedef struct {
    archive_mode_t mode;

    parse_callback_t parse;
    log_callback_t log;
    logf_callback_t logf;
    store_callback_t store;
} scan_arc_ctx_t;

#define ARC_BUF_SIZE 8192

typedef struct {
    vfile_t *f;
    char buf[ARC_BUF_SIZE];
} arc_data_t;

static int vfile_open_callback(struct archive *a, void *user_data) {
    arc_data_t *data = (arc_data_t*)user_data;

    if (data->f->is_fs_file && data->f->fd == -1) {
        data->f->fd = open(data->f->filepath, O_RDONLY);
    }

    return ARCHIVE_OK;
}

static long vfile_read_callback(struct archive *a, void *user_data, const void **buf) {
    arc_data_t *data = (arc_data_t*)user_data;

    *buf = data->buf;
    return data->f->read(data->f, data->buf, ARC_BUF_SIZE);
}

static int vfile_close_callback(struct archive *a, void *user_data) {
    arc_data_t *data = (arc_data_t*)user_data;

    if (data->f->close != NULL) {
        data->f->close(data->f);
    }

    return ARCHIVE_OK;
}

int arc_open(vfile_t *f, struct archive **a, arc_data_t *arc_data, int allow_recurse);

int should_parse_filtered_file(const char *filepath, int ext);

scan_code_t parse_archive(scan_arc_ctx_t *ctx, vfile_t *f, document_t *doc);

int arc_read(struct vfile * f, void *buf, size_t size);

#endif