[examples] added misc helpers for client side examples;

examples/Makefile.am

@@ -41,7 +41,7 @@ smpfd_SOURCES = helpers.c smpfd.c
 smpfd_LDADD = $(LIBTDATA_LIBS) $(LIBSEXPR_LIBS) $(OPENSSL_LIBS) \
 	$(LIBUUID_LIBS) $(libsxmp) -lpthread
 
-smpfc_SOURCES = smpfc.c
+smpfc_SOURCES = misc.c smpfc.c
 smpfc_LDADD = $(LIBTDATA_LIBS) $(LIBSEXPR_LIBS) $(OPENSSL_LIBS) \
 	$(LIBUUID_LIBS) $(libsxmp) -lpthread -lreadline
 

examples/misc.c

@@ -0,0 +1,91 @@
+/*
+ * Secure X Message Passing Library v2 examples.
+ *
+ * (c) Alexander Vdolainen 2013-2015 <avdolainen@gmail.com>
+ * (c) Alexander Vdolainen 2016 <avdolainen@zoho.com>
+ *
+ * libsxmp is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libsxmp is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.";
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+
+int exmps_getaddrs(const char *cline, char **host, char **login, int *port)
+{
+  int p = 0;
+  char *tb = NULL, *h, *ttb;
+
+  tb = strchr(cline, '@');
+  if(!tb) return 0;
+
+  h = strndup(cline, strlen(cline) - strlen(tb));
+  if(!h) return 0;
+  else p++;
+  *host = h;
+  tb += sizeof(char);
+
+  if(!(ttb = strchr(tb, ':'))) h = strdup(tb);
+  else h = strndup(tb, strlen(tb) - strlen(ttb));
+
+  if(!h) return 0;
+  p++; *login = h;
+
+  if(ttb) {
+    ttb += sizeof(char);
+    *port = atoi(ttb);
+    p++;
+  }
+
+  return p;
+}
+
+/*
+ * simple function to read a password.
+ */
+char *exmps_getpass(const char *promt)
+{
+  char *pass = malloc(64);
+  int fd = fileno(stdin), in = 0, c;
+  struct termios tio;
+
+  fprintf(stdout, "%s", promt);
+
+  if(!pass) return NULL;
+  else memset(pass, 0, 64);
+
+  /* set the flag to disable echoing */
+  tcgetattr(fd, &tio);
+  tio.c_lflag &= ~ECHO;
+  tcsetattr(fd, 0, &tio);
+
+  /* read stupid line */
+  while(in <= 64) {
+    c = getchar();
+    if(c == '\n') break;
+    else {
+      pass[in] = c;
+      in++;
+    }
+  }
+
+  /* enable echo again */
+  tio.c_lflag |= ECHO;
+  tcsetattr(fd, 0, &tio);
+
+  return pass;
+}

examples/misc.h

@@ -0,0 +1,29 @@
+/*
+ * Secure X Message Passing Library v2 examples.
+ *
+ * (c) Alexander Vdolainen 2013-2015 <avdolainen@gmail.com>
+ * (c) Alexander Vdolainen 2016 <avdolainen@zoho.com>
+ *
+ * libsxmp is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libsxmp is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.";
+ *
+ */
+
+#ifndef __SXMP_EXAMPLES_MISC_H__
+#define __SXMP_EXAMPLES_MISC_H__
+
+int exmps_getaddrs(const char *, char **, char **, int *);
+
+char *exmps_getpass(const char *);
+
+#endif /* __SXMP_EXAMPLES_MISC_H__ */

examples/smpf.h

@@ -2,6 +2,7 @@
  * Secure X Message Passing Library v2 examples.
  *
  * (c) Alexander Vdolainen 2013-2015 <avdolainen@gmail.com>
+ * (c) Alexander Vdolainen 2016 <avdolainen@zoho.com>
  *
  * libsxmp is free software: you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published

examples/smpfc.c

@@ -34,6 +34,10 @@
 #include <uuid/uuid.h>
 #include <execinfo.h>
 #include <netinet/in.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <getopt.h>
+#include <errno.h>
 
 #include <tdata/usrtc.h>
 #include <tdata/list.h>
@@ -41,12 +45,11 @@
 #include <sxmp/limits.h>
 #include <sxmp/sxmp.h>
 
-#include <pthread.h>
-#include <stdint.h>
-#include <getopt.h>
-#include <errno.h>
+#include <readline/readline.h>
+#include <readline/history.h>
 
 #include "smpf.h"
+#include "misc.h"
 #include "../config.h"
 
 #define FULL_PROGRAM_NAME        "SMPF (secure message passing file) client"
@@ -66,9 +69,25 @@ struct _remote_host {
   int port;
   sxhub_t *hub;
   sxlink_t *link;
-  struct _session *session;
 };
 
+/* session processing itself */
+static void __shell(sxlink_t *link)
+{
+  struct _session *s = (struct _session *)sxlink_getpriv(link);
+  char *line;
+
+  for(;;) {
+    line = readline("$>");
+
+    if(line && *line)      add_history(line);
+    else break;
+
+    if(!strcmp(line, "exit")) break;
+  }
+  return;
+}
+
 /* sxmp stuff below */
 static void __session_free(sxlink_t *l)
 {
@@ -181,14 +200,23 @@ int main(int argc, char **argv)
     return EINVAL;
   }
 
+  /* TODO: better check */
+  exmps_getaddrs(cline, &login, &host, &port);
+
+  if(!host) {
+    fprintf(stderr, "Host not pointed.\n");
+    __help_print(stderr, argv[0]);
+    return EINVAL;
+  }
+
   /* ok validate all before doing any stuff */
   if(!rootca || !cert) {
     fprintf(stderr, "One or more x.509 certificates files not pointed.\n");
     __help_print(stderr, argv[0]);
     return EINVAL;
   }
-  if(!login || !password) {
-    fprintf(stderr, "Login or password not pointed.\n");
+  if(!login) {
+    fprintf(stderr, "Login not pointed.\n");
     __help_print(stderr, argv[0]);
     return EINVAL;
   }
@@ -198,6 +226,10 @@ int main(int argc, char **argv)
     return EINVAL;
   }
 
+  /* read the password */
+  password = exmps_getpass("Password: ");
+  fprintf(stdout, "\n");
+
   /* initialize sxmp first */
   sxmp_init(); /* init library */
   lhub = sxhub_create(); /* create sxhub for link creation */
@@ -220,6 +252,8 @@ int main(int argc, char **argv)
     fprintf(stderr, "Failed to create link to %s@%s:%d with %d.\n", rh->login, rh->hostname,
             rh->port, i);
   } else {
+    /* hooray now we ready to do something */
+    __shell(rh->link);
 
     sxlink_close(rh->link); /* don't forget to do this */
   }