libssh with & without goto for error handling

main.c

#include <stdio.h>
#include <stdlib.h>
#include <libssh/libssh.h>

int main(int argc, const char *argv[]) {
        char *host = "localhost", *username = "username", *password = "password";
        int port = 22, timeout = 5;

        ssh_init();
        atexit((void(*)())ssh_finalize);

        ssh_session s = ssh_new();

        // Terrible, we're out of memory! All bets are off!
        if(s == NULL) {
                fprintf(stderr, "Unable to allocate SSH session\n");
                exit(1);
        }

        // Set our host and port options
        if((ssh_options_set(s, SSH_OPTIONS_HOST, host) |
        ssh_options_set(s, SSH_OPTIONS_PORT, &port) |
        ssh_options_set(s, SSH_OPTIONS_TIMEOUT, &timeout)) < 0) {
                fprintf(stderr, "Unable to set SSH options for %s:\n\t%s\n", host, ssh_get_error(s));
                ssh_free(s);
                exit(1);
        }

        // Try to connect
        if(ssh_connect(s) != SSH_OK) {
                fprintf(stderr, "Unable to connect to %s:\n\t%s\n", host, ssh_get_error(s));
                ssh_free(s);
                exit(1);
        }

        // Authenticate our mikrotik user
        if(ssh_userauth_password(s, username, password) != SSH_AUTH_SUCCESS) {
                fprintf(stderr, "Unable to authenticate user: %s\n", username);
                ssh_disconnect(s);
                ssh_free(s);
                exit(1);
        }

        // Then we'd setup a channel to send data to and from

        // Clean up
        ssh_disconnect(s);
        ssh_free(s);
        return EXIT_SUCCESS;
}

main_goto.c

#include <stdio.h>
#include <stdlib.h>
#include <libssh/libssh.h>

int main(int argc, const char *argv[]) {
        char *host = "localhost", *username = "username", *password = "password";
        int port = 22, timeout = 5;

        ssh_init();
        atexit((void(*)())ssh_finalize);

        ssh_session s = ssh_new();

        // Terrible, we're out of memory! All bets are off!
        if(s == NULL) {
                fprintf(stderr, "Unable to allocate SSH session\n");
                exit(1);
        }

        // Set our host and port options
        if((ssh_options_set(s, SSH_OPTIONS_HOST, host) |
        ssh_options_set(s, SSH_OPTIONS_PORT, &port) |
        ssh_options_set(s, SSH_OPTIONS_TIMEOUT, &timeout)) < 0) {
                fprintf(stderr, "Unable to set SSH options for %s:\n\t%s\n", host, ssh_get_error(s));
                goto connect_failed;
        }

        // Try to connect
        if(ssh_connect(s) != SSH_OK) {
                fprintf(stderr, "Unable to connect to %s:\n\t%s\n", host, ssh_get_error(s));
                goto connect_failed;
        }

        // Authenticate our mikrotik user
        if(ssh_userauth_password(s, username, password) != SSH_AUTH_SUCCESS) {
                fprintf(stderr, "Unable to authenticate user: %s\n", username);
                goto authenticate_failed;
        }

        // Then we'd setup a channel to send data to and from

authenticate_failed: // We get here if we have the wrong credentials
        ssh_disconnect(s);
connect_failed: // and we get here if we had bad options or unable to create the session
        ssh_free(s);

        return EXIT_SUCCESS;
}