move old code

1 files changed, 0 insertions, 329 deletions

diff --git a/remote_plot_no_gtk.c b/remote_plot_no_gtk.c
deleted file mode 100644
index b1cb2a6..0000000
--- a/remote_plot_no_gtk.c
+++ /dev/null
@@ -1,329 +0,0 @@
-// references:
-// https://api.libssh.org/stable/libssh_tutorial.html
-// https://api.libssh.org/stable/libssh_tutor_guided_tour.html
-// plplot example 17
-
-#include <libssh/libssh.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <libssh/sftp.h>
-
-// verify_knownhost()
-#include <errno.h>
-#include <string.h>
-
-#include <fcntl.h> // open()
-
-// plplot
-#include <plplot/plConfig.h>
-#include <plplot/plplot.h>
-#include <math.h>
-//#include <stdlib.h>
-#include <time.h>
-#include <unistd.h>
-
-// very small also works, just transfter delays, I test accelerometer data is
-// like 15782 which is 7 bytes consider newline and \0?
-#define MAX_XFER_BUF_SIZE 7
-
-// Variables for holding error return info from PLplot
-static PLINT pl_errcode;
-static char  errmsg[160];
-
-int sftp_read_sync(ssh_session session, sftp_session sftp)
-{
-	int access_type;
-	sftp_file file;
-	char buffer[MAX_XFER_BUF_SIZE];
-	int nbytes, rc;
-	access_type = O_RDONLY;
-
-	PLINT           id1, autoy, acc;
-	PLFLT           ymin, ymax, xlab, ylab;
-	PLFLT           t, tmin, tmax, tjump;
-	PLINT           colbox, collab, colline[4], styline[4];
-	PLCHAR_VECTOR   legline[4];
-
-	// If db is used the plot is much more smooth. However, because of the
-	// async X behaviour, one does not have a real-time scripcharter.
-	// This is now disabled since it does not significantly improve the
-	// performance on new machines and makes it difficult to use this
-	// example non-interactively since it requires an extra pleop call after
-	// each call to plstripa.
-	//
-	//plsetopt("db", "");
-	//plsetopt("np", "");
-
-	// User sets up plot completely except for window and data
-	// Eventually settings in place when strip chart is created will be
-	// remembered so that multiple strip charts can be used simultaneously.
-	//
-
-	// Specify some reasonable defaults for ymin and ymax
-	// The plot will grow automatically if needed (but not shrink)
-
-	ymin = -0.1;
-	ymax = 0.1;
-
-	// Specify initial tmin and tmax -- this determines length of window.
-	// Also specify maximum jump in t
-	// This can accomodate adaptive timesteps
-
-	tmin  = 0.;
-	tmax  = 10.;
-	tjump = 0.3;        // percentage of plot to jump
-
-	// Axes options same as plbox.
-	// Only automatic tick generation and label placement allowed
-	// Eventually I'll make this fancier
-
-	colbox     = 1;
-	collab     = 3;
-	styline[0] = colline[0] = 2;        // pens color and line style
-	styline[1] = colline[1] = 3;
-	styline[2] = colline[2] = 4;
-	styline[3] = colline[3] = 5;
-
-	legline[0] = "in_accel_z_raw";                         // pens legend
-	legline[1] = "not_used";
-	legline[2] = "not_used";
-	legline[3] = "not_used";
-
-	xlab = 0.; ylab = 0.25;     // legend position
-
-	autoy = 1;                  // autoscale y
-	acc   = 1;                  // don't scrip, accumulate
-
-	// Initialize plplot
-
-	plinit();
-
-	pladv( 0 );
-	plvsta();
-
-	// Register our error variables with PLplot
-	// From here on, we're handling all errors here
-
-	plsError( &pl_errcode, errmsg );
-
-	plstripc( &id1, "bcnst", "bcnstv",
-			tmin, tmax, tjump, ymin, ymax,
-			xlab, ylab,
-			autoy, acc,
-			colbox, collab,
-			colline, styline, legline,
-			"t", "", "Strip chart demo" );
-
-	if ( pl_errcode )
-	{
-		fprintf( stderr, "%s\n", errmsg );
-		exit( 1 );
-	}
-
-	// Let plplot handle errors from here on
-
-	plsError( NULL, NULL );
-
-	autoy = 0;  // autoscale y
-	acc   = 1;  // accumulate
-
-	// This is to represent a loop over time
-	// Let's try a random walk process
-
-	for (t=0;;t++) {
-		file = sftp_open(sftp, "/sys/bus/iio/devices/iio:device2/in_accel_z_raw",
-				access_type, 0);
-		if (file == NULL) {
-			fprintf(stderr, "Can't open file for reading: %s\n",
-					ssh_get_error(session));
-			return SSH_ERROR;
-		}
-
-		for (;;) {
-			nbytes = sftp_read(file, buffer, sizeof(buffer));
-			if (nbytes == 0) {
-				break; // EOF
-			} else if (nbytes < 0) {
-				fprintf(stderr, "Error while reading file: %s\n",
-						ssh_get_error(session));
-				sftp_close(file);
-				return SSH_ERROR;
-			}
-
-			//printf("%s",buffer);
-			//printf("%d\n",atoi(buffer));
-			plstripa( id1, 0, t, atof(buffer));
-		}
-	}
-
-	rc = sftp_close(file);
-	if (rc != SSH_OK) {
-		fprintf(stderr, "Can't close the read file: %s\n",
-				ssh_get_error(session));
-		return rc;
-	}
-
-	plstripd( id1 );
-	plend();
-
-	return SSH_OK;
-}
-
-// https://api.libssh.org/stable/libssh_tutor_guided_tour.html
-int verify_knownhost(ssh_session session)
-{
-	enum ssh_known_hosts_e state;
-	unsigned char *hash = NULL;
-	ssh_key srv_pubkey = NULL;
-	size_t hlen;
-	char buf[10];
-	char *hexa;
-	char *p;
-	int cmp;
-	int rc;
-
-	rc = ssh_get_server_publickey(session, &srv_pubkey);
-	if (rc < 0) {
-		return -1;
-	}
-
-	rc = ssh_get_publickey_hash(srv_pubkey,
-			SSH_PUBLICKEY_HASH_SHA1,
-			&hash,
-			&hlen);
-	ssh_key_free(srv_pubkey);
-	if (rc < 0) {
-		return -1;
-	}
-
-	state = ssh_session_is_known_server(session);
-	switch (state) {
-		case SSH_KNOWN_HOSTS_OK:
-			/* OK */
-
-			break;
-		case SSH_KNOWN_HOSTS_CHANGED:
-			fprintf(stderr, "Host key for server changed: it is now:\n");
-			ssh_print_hexa("Public key hash", hash, hlen);
-			fprintf(stderr, "For security reasons, connection will be stopped\n");
-			ssh_clean_pubkey_hash(&hash);
-
-			return -1;
-		case SSH_KNOWN_HOSTS_OTHER:
-			fprintf(stderr, "The host key for this server was not found but an other"
-					"type of key exists.\n");
-			fprintf(stderr, "An attacker might change the default server key to"
-					"confuse your client into thinking the key does not exist\n");
-			ssh_clean_pubkey_hash(&hash);
-
-			return -1;
-		case SSH_KNOWN_HOSTS_NOT_FOUND:
-			fprintf(stderr, "Could not find known host file.\n");
-			fprintf(stderr, "If you accept the host key here, the file will be"
-					"automatically created.\n");
-
-			/* FALL THROUGH to SSH_SERVER_NOT_KNOWN behavior */
-
-		case SSH_KNOWN_HOSTS_UNKNOWN:
-			hexa = ssh_get_hexa(hash, hlen);
-			fprintf(stderr,"The server is unknown. Do you trust the host key?\n");
-			fprintf(stderr, "Public key hash: %s\n", hexa);
-			ssh_string_free_char(hexa);
-			ssh_clean_pubkey_hash(&hash);
-			p = fgets(buf, sizeof(buf), stdin);
-			if (p == NULL) {
-				return -1;
-			}
-
-			cmp = strncasecmp(buf, "yes", 3);
-			if (cmp != 0) {
-				return -1;
-			}
-
-			rc = ssh_session_update_known_hosts(session);
-			if (rc < 0) {
-				fprintf(stderr, "Error %s\n", strerror(errno));
-				return -1;
-			}
-
-			break;
-		case SSH_KNOWN_HOSTS_ERROR:
-			fprintf(stderr, "Error %s", ssh_get_error(session));
-			ssh_clean_pubkey_hash(&hash);
-			return -1;
-	}
-
-	ssh_clean_pubkey_hash(&hash);
-	return 0;
-}
-
-int main(void)
-{
-	ssh_session my_ssh_session;
-	sftp_session sftp;
-	int rc;
-
-	// Open session and set options
-	my_ssh_session = ssh_new();
-	if (my_ssh_session == NULL)
-		exit(-1);
-	ssh_options_set(my_ssh_session, SSH_OPTIONS_HOST, "10.0.0.7");
-
-	// Connect to server
-	rc = ssh_connect(my_ssh_session);
-	if (rc != SSH_OK)
-	{
-		fprintf(stderr, "Error connecting to 10.0.0.7: %s\n",
-				ssh_get_error(my_ssh_session));
-		ssh_free(my_ssh_session);
-		exit(-1);
-	}
-
-	// Verify the server's identity
-	// For the source code of verify_knownhost(), check previous example
-	if (verify_knownhost(my_ssh_session) < 0)
-	{
-		ssh_disconnect(my_ssh_session);
-		ssh_free(my_ssh_session);
-		exit(-1);
-	}
-
-	// Authenticate ourselves
-	// https://api.libssh.org/stable/libssh_tutor_authentication.html
-	rc = ssh_userauth_publickey_auto(my_ssh_session, NULL, NULL);
-	if (rc != SSH_AUTH_SUCCESS)
-	{
-		fprintf(stderr, "Error authenticating with key: %s\n",
-				ssh_get_error(my_ssh_session));
-		ssh_disconnect(my_ssh_session);
-		ssh_free(my_ssh_session);
-		exit(-1);
-	}
-
-
-	sftp = sftp_new(my_ssh_session);
-	if (sftp == NULL)
-	{
-		fprintf(stderr, "Error allocating SFTP session: %s\n",
-				ssh_get_error(my_ssh_session));
-		return SSH_ERROR;
-	}
-
-	rc = sftp_init(sftp);
-	if (rc != SSH_OK)
-	{
-		fprintf(stderr, "Error initializing SFTP session: code %d.\n",
-				sftp_get_error(sftp));
-		sftp_free(sftp);
-		return rc;
-	}
-
-	sftp_read_sync(my_ssh_session,sftp);
-
-	ssh_disconnect(my_ssh_session);
-	ssh_free(my_ssh_session);
-	// Segmentation fault (core dumped) error, why? maybe double free? so no free is ok?
-	//sftp_free(sftp);
-
-	return 0;
-}