libssh2_test.c

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>

#include <libssh2.h>

int main (int argc, char ** argv)
{
	if (argc < 2) {
		printf("usage: test <ip_address>\n");
		return -1;
	}

	LIBSSH2_SESSION * session = NULL;

	session = libssh2_session_init();

	if (!session) {
		printf("Failed to initialise session\n");
		return -1;
	}

	int sock = socket(AF_INET, SOCK_STREAM, 0);

	struct sockaddr_in sin;

	sin.sin_family = AF_INET;
	sin.sin_port = htons(22);
	sin.sin_addr.s_addr = inet_addr(argv[1]);

	if (connect(sock, (struct sockaddr*)(&sin),
				sizeof(struct sockaddr_in)) != 0) {
		printf("Failed to connect\n");
		return -1;
	}

	if (libssh2_session_startup(session, sock) < 0) {
		printf("Failed to start session\n");

		char * error_message = NULL;
		int error_length = 0;

		libssh2_session_last_error(session, &error_message, &error_length, 0);

		printf("%s\n", error_message);

		return -1;
	}

	printf("Successfully connected\n");
}