patty/src/ax25.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include <patty/ax25.h>

int patty_ax25_init(patty_ax25 *ax25) {
    memset(ax25, '\0', sizeof(*ax25));

    if ((ax25->ifaces = patty_list_new()) == NULL) {
        goto error_list_new_ifaces;
    }

    if ((ax25->ports = patty_list_new()) == NULL) {
        goto error_list_new_ports;
    }

    if ((ax25->links = patty_list_new()) == NULL) {
        goto error_list_new_links;
    }

    if ((ax25->fd_lookup = patty_dict_new()) == NULL) {
        goto error_dict_new_fd_lookup;
    }

    ax25->fd = 0;

    return 0;

error_dict_new_fd_lookup:
    patty_list_destroy(ax25->links);

error_list_new_links:
    patty_list_destroy(ax25->ports);

error_list_new_ports:
    patty_list_destroy(ax25->ifaces);

error_list_new_ifaces:
    return -1;
}

void patty_ax25_stop(patty_ax25 *ax25) {
    patty_dict_destroy(ax25->fd_lookup);
    patty_list_destroy(ax25->links);
    patty_list_destroy(ax25->ports);
    patty_list_destroy(ax25->ifaces);
}

int patty_ax25_open(patty_ax25 *ax25, const char *ifname) {
    patty_ax25_if *iface;

    if ((iface = patty_ax25_get_if(ax25, ifname)) == NULL) {
        goto error_get_if;
    }

    if (patty_dict_set(ax25->fd_lookup, &ax25->fd, sizeof(ax25->fd), iface) == NULL) {
        goto error_dict_set;
    }

    return ax25->fd++;

error_dict_set:
error_get_if:
    return -1;
}