From 239248f77bb21139b158950a548ff84ada4b3bf1 Mon Sep 17 00:00:00 2001
From: defanor <defanor@uberspace.net>
Date: Sat, 29 Feb 2020 07:50:32 +0300
Subject: Add the draft

---
 examples/basic.c | 138 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 examples/basic.c

(limited to 'examples')

diff --git a/examples/basic.c b/examples/basic.c
new file mode 100644
index 0000000..681a0ac
--- /dev/null
+++ b/examples/basic.c
@@ -0,0 +1,138 @@
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <syslog.h>
+#include <gnutls/gnutls.h>
+
+#include <rexmpp.h>
+
+
+void my_logger (rexmpp_t *s, int priority, const char *fmt, va_list args) {
+  char *priority_str = "unknown";
+  switch (priority) {
+  case LOG_EMERG: priority_str = "emerg"; break;
+  case LOG_ALERT: priority_str = "alert"; break;
+  case LOG_CRIT: priority_str = "crit"; break;
+  case LOG_ERR: priority_str = "err"; break;
+  case LOG_WARNING: priority_str = "warning"; break;
+  case LOG_NOTICE: priority_str = "notice"; break;
+  case LOG_INFO: priority_str = "info"; break;
+  case LOG_DEBUG: priority_str = "debug"; break;
+  }
+  fprintf(stderr, "[%s] ", priority_str);
+  vfprintf(stderr, fmt, args);
+  fprintf(stderr, "\n");
+}
+
+int my_sasl_property_cb (Gsasl * ctx, Gsasl_session * sctx, Gsasl_property prop) {
+  if (prop == GSASL_PASSWORD) {
+    char buf[4096];
+    printf("password: ");
+    gets(buf);
+    gsasl_property_set (sctx, GSASL_PASSWORD, buf);
+    return GSASL_OK;
+  }
+  if (prop == GSASL_AUTHID) {
+    gsasl_property_set (sctx, GSASL_AUTHID, "test");
+    return GSASL_OK;
+  }
+  printf("unhandled gsasl property: %d\n", prop);
+  return GSASL_NO_CALLBACK;
+}
+
+int my_xml_in_cb (rexmpp_t *s, xmlNodePtr node) {
+  char *xml_buf = rexmpp_xml_serialize(node);
+  printf("recv: %s\n", xml_buf);
+  free(xml_buf);
+  return 0;
+}
+
+int my_xml_out_cb (rexmpp_t *s, xmlNodePtr node) {
+  char *xml_buf = rexmpp_xml_serialize(node);
+  printf("send: %s\n", xml_buf);
+  free(xml_buf);
+  return 0;
+}
+
+main () {
+  rexmpp_t s;
+  rexmpp_err_t err;
+  err = rexmpp_init(&s,
+                    "test@foo.custom",
+                    my_logger,
+                    my_sasl_property_cb,
+                    my_xml_in_cb,
+                    my_xml_out_cb);
+  if (err != REXMPP_SUCCESS) {
+    puts("error");
+    return -1;
+  }
+  /* gnutls_certificate_set_x509_key_file(s.gnutls_cred, */
+  /*                                      "cert.pem", */
+  /*                                      "key.pem", */
+  /*                                      GNUTLS_X509_FMT_PEM); */
+  fd_set read_fds, write_fds;
+  int nfds;
+  struct timeval tv;
+  struct timeval *mtv;
+  int n = 0;
+
+
+  do {
+
+    if (n > 0 && FD_ISSET(STDIN_FILENO, &read_fds)) {
+      char input[4096];
+      ssize_t input_len;
+      input_len = read(STDIN_FILENO, input, 4096);
+      if (input_len == -1) {
+        puts("input error");
+      } else {
+        input[input_len - 1] = '\0';
+        if (strlen(input) != 0) {
+          if (strcmp(input, ".") == 0) {
+            rexmpp_stop(&s);
+          } else if (strcmp(input, "connerr") == 0) {
+            close(s.server_socket);
+            s.server_socket = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
+            gnutls_transport_set_int(s.gnutls_session, s.server_socket);
+          } else {
+            xmlNodePtr msg = rexmpp_xml_add_id(&s, xmlNewNode(NULL, "message"));
+            xmlNewProp(msg, "to", "test2@foo.custom");
+            xmlNewProp(msg, "type", "chat");
+            xmlNewTextChild(msg, NULL, "body", input);
+            rexmpp_send(&s, msg);
+          }
+        }
+      }
+    }
+    err = rexmpp_run(&s, &read_fds, &write_fds);
+    if (err == REXMPP_SUCCESS) {
+      puts("done");
+      break;
+    }
+    if (err != REXMPP_E_AGAIN) {
+      puts("error");
+      break;
+    }
+    /* printf("res %d / conn %d / tls %d / sasl %d / stream %d / carbons %d\n", */
+    /*        s.resolver_state, */
+    /*        s.tcp_state, */
+    /*        s.tls_state, */
+    /*        s.sasl_state, */
+    /*        s.stream_state, */
+    /*        s.carbons_state); */
+    FD_ZERO(&read_fds);
+    FD_ZERO(&write_fds);
+
+    nfds = rexmpp_fds(&s, &read_fds, &write_fds);
+    mtv = rexmpp_timeout(&s, NULL, (struct timeval*)&tv);
+
+    FD_SET(STDIN_FILENO, &read_fds);
+    n = select(nfds, &read_fds, &write_fds, NULL, mtv);
+    if (n == -1) {
+      printf("select error: %s\n", strerror(errno));
+      break;
+    }
+  } while (1);
+  rexmpp_done(&s);
+}
-- 
cgit v1.2.3