libssh/examples/exec.c

/* simple exec example */
#include <stdio.h>

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

int main(void) {
  ssh_session session;
  ssh_channel channel;
  char buffer[256];
  int rc;

  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, "ps aux");
  if (rc < 0) {
    ssh_channel_close(channel);
    ssh_disconnect(session);
    return 1;
  }


  while ((rc = ssh_channel_read(channel, buffer, sizeof(buffer), 0)) > 0) {
    if (fwrite(buffer, 1, rc, stdout) != (unsigned int) rc) {
      return 1;
    }
  }
    
  if (rc < 0) {
    ssh_channel_close(channel);
    ssh_disconnect(session);
    return 1;
  }

  ssh_channel_send_eof(channel);
  ssh_channel_close(channel);

  ssh_disconnect(session);

  return 0;
}