libssh/examples/senddata.c

#include <stdio.h>

#include <libssh/libssh.h>
#include "examples_common.h"

#define LIMIT 0x100000000UL

int main(void)
{
    ssh_session session;
    ssh_channel channel;
    char buffer[1024 * 1024] = {0};
    int rc;
    uint64_t total = 0;
    uint64_t lastshown = 4096;
    session = connect_ssh("localhost", NULL, 0);
    if (session == NULL) {
        return 1;
    }

    channel = ssh_channel_new(session);
    if (channel == NULL) {
        ssh_disconnect(session);
        return 1;
    }

    rc = ssh_channel_open_session(channel);
    if (rc < 0) {
        ssh_channel_close(channel);
        ssh_disconnect(session);
        return 1;
    }

    rc = ssh_channel_request_exec(channel, "cat > /dev/null");
    if (rc < 0) {
        ssh_channel_close(channel);
        ssh_disconnect(session);
        return 1;
    }

    while ((rc = ssh_channel_write(channel, buffer, sizeof(buffer))) > 0) {
        total += rc;
        if (total / 2 >= lastshown) {
            printf("written %llx\n", (long long unsigned int)total);
            lastshown = total;
        }
        if (total > LIMIT)
            break;
    }

    if (rc < 0) {
        printf("error : %s\n", ssh_get_error(session));
        ssh_channel_close(channel);
        ssh_disconnect(session);
        return 1;
    }

    ssh_channel_send_eof(channel);
    ssh_channel_close(channel);

    ssh_disconnect(session);

    return 0;
}