Move the xmpp library to its new name.

src/util.c

@@ -0,0 +1,70 @@
+/* util.c
+** XMPP client library -- various utility functions
+**
+** Copyright (C) 2005 OGG, LCC. All rights reserved.
+**
+**  This software is provided AS-IS with no warranty, either express
+**  or implied.
+**
+**  This software is distributed under license and may not be copied,
+**  modified or distributed except as expressly authorized under the
+**  terms of the license contained in the file LICENSE.txt in this
+**  distribution.
+*/
+
+#include <stdio.h>
+#include <string.h>
+
+#ifdef _WIN32
+#include <winsock2.h>
+#else
+#include <sys/time.h>
+#include <time.h>
+#include <stdint.h>
+#endif
+
+#include "xmpp.h"
+#include "common.h"
+#include "util.h"
+
+/** implement our own strdup that uses the ctx allocator */
+char *xmpp_strdup(const xmpp_ctx_t * const ctx, const char * const s)
+{
+    size_t len;
+    char *copy;
+
+    len = strlen(s);
+    copy = xmpp_alloc(ctx, len + 1);
+    if (!copy) {
+        xmpp_error(ctx, "xmpp", "failed to allocate required memory");
+        return NULL;
+    }
+
+    memcpy(copy, s, len + 1);
+
+    return copy;
+}
+
+uint64_t time_stamp(void)
+{
+#ifdef _WIN32
+    return timeGetTime();
+#else
+    struct timeval tv;
+
+    gettimeofday(&tv, NULL);
+
+    return (uint64_t)tv.tv_sec * 1000 + (uint64_t)tv.tv_usec / 1000;
+#endif
+}
+
+uint64_t time_elapsed(uint64_t t1, uint64_t t2)
+{
+    return (uint64_t)(t2 - t1);
+}
+
+void disconnect_mem_error(xmpp_conn_t * const conn)
+{
+    xmpp_error(conn->ctx, "xmpp", "Memory allocation error");
+    xmpp_disconnect(conn);
+}