static int ssh_open_remote_connection(const char* hostname, const unsigned int port, const char* username, const char* password,
const char* sshkey, const char* sshkey_passphrase, const char* iface, const char* cfilter,
const guint32 count, const char* fifo)
{
ssh_session sshs;
ssh_channel channel;
FILE* fp = stdout;
guint64 bytes_written = 0;
int err;
int ret = EXIT_FAILURE;
char* err_info = NULL;
if (g_strcmp0(fifo, "-")) {
/* Open or create the output file */
fp = fopen(fifo, "w");
if (!fp) {
g_warning("Error creating output file: %s", g_strerror(errno));
return EXIT_FAILURE;
}
}
sshs = create_ssh_connection(hostname, port, username, password, sshkey, sshkey_passphrase, &err_info);
if (!sshs) {
g_warning("Error creating connection: %s", err_info);
goto cleanup;
}
if (!libpcap_write_file_header(fp, 1, PCAP_SNAPLEN, FALSE, &bytes_written, &err)) {
g_warning("Can't write pcap file header");
goto cleanup;
}
channel = run_capture(sshs, iface, cfilter, count);
if (!channel) {
ret = EXIT_FAILURE;
goto cleanup;
}
/* read from channel and write into fp */
ssh_loop_read(channel, fp, count);
/* clean up and exit */
ciscodump_cleanup(sshs, channel, iface, cfilter);
ret = EXIT_SUCCESS;
cleanup:
if (fp != stdout)
fclose(fp);
return ret;
}
static int setup_dumpfile(const char* fifo, FILE** fp)
{
guint64 bytes_written = 0;
int err;
if (!g_strcmp0(fifo, "-")) {
*fp = stdout;
return EXIT_SUCCESS;
}
*fp = fopen(fifo, "w");
if (!(*fp)) {
g_warning("Error creating output file: %s", g_strerror(errno));
return EXIT_FAILURE;
}
if (!libpcap_write_file_header(*fp, 252, PCAP_SNAPLEN, FALSE, &bytes_written, &err)) {
g_warning("Can't write pcap file header");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
