Move u3 code to top-level directory since it's not GTK specific

svn path=/trunk/; revision=35046

1 files changed, 203 insertions, 0 deletions

diff --git a/u3.c b/u3.c
new file mode 100644
index 0000000000..ec15202540
--- /dev/null
+++ b/u3.c
@@ -0,0 +1,203 @@
+/* u3.c
+ * u3   2006 Graeme Lunt
+ *
+ * $Id$
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+/*
+ * Indentation logic: 2-space
+ */
+
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
+#ifdef _WIN32
+#include <process.h>    /* getpid */
+#endif
+
+#include <wsutil/file_util.h>
+
+#include <epan/filesystem.h>
+
+#include "u3.h"
+
+
+#define U3_DEVICE_PATH_VAR   "$U3_DEVICE_PATH"
+
+static char *pid_file = NULL;
+static char *u3devicepath = (char*)-1;
+static gchar *newpath = NULL;
+
+static char *u3_change_path(char *path, const char *old, const char *new);
+
+gboolean u3_active()
+{
+
+  return (
+#ifdef _WIN32
+      getenv_utf8
+#else
+      getenv
+#endif
+      ("U3_HOST_EXEC_PATH") != NULL);
+
+}
+
+void u3_runtime_info(GString *str)
+{
+
+  char *u3devicepath_lcl = NULL;
+  char *u3deviceproduct = NULL;
+
+  if((u3deviceproduct =
+#ifdef _WIN32
+      getenv_utf8
+#else
+      getenv
+#endif
+      ("U3_DEVICE_PRODUCT")) != NULL) {
+    g_string_append(str, " from the ");
+    g_string_append(str, u3deviceproduct);
+  } else {
+    g_string_append(str, " from a ");
+  }
+
+  g_string_append(str, " U3 device");
+
+  if((u3devicepath_lcl =
+#ifdef _WIN32
+      getenv_utf8
+#else
+      getenv
+#endif
+      ("U3_DEVICE_PATH")) != NULL) {
+    g_string_append(str, " in drive ");
+    g_string_append(str, u3devicepath_lcl);
+  }
+
+}
+
+void u3_register_pid()
+{
+  int	pid;
+  int   pid_fd;
+  char *u3hostexecpath;
+  int   pf_size;
+
+  if((u3hostexecpath =
+#ifdef _WIN32
+      getenv_utf8
+#else
+      getenv
+#endif
+      ("U3_HOST_EXEC_PATH")) != NULL) {
+
+    pid = getpid();
+
+    pf_size = (int) strlen(u3hostexecpath) + 32;
+    pid_file = g_malloc(pf_size);
+
+    g_snprintf(pid_file, pf_size, "%s\\%d.pid", u3hostexecpath, pid);
+
+    pid_fd = ws_open(pid_file, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
+
+    if(pid_fd != -1)
+      ws_close(pid_fd);
+    else {
+      g_free(pid_file);
+      pid_file = NULL;
+    }
+  }
+}
+
+
+void u3_deregister_pid()
+{
+  if(pid_file) {
+    /* we don't care if we succeed or fail - u3utils may have deleted the file */
+    ws_unlink(pid_file);
+
+    g_free(pid_file);
+
+    pid_file = NULL;
+
+  }
+}
+
+char *u3_expand_device_path(char *path)
+{
+  return u3_change_path(path, U3_DEVICE_PATH_VAR, NULL);
+}
+
+
+char *u3_contract_device_path(char *path)
+{
+  return u3_change_path(path, NULL, U3_DEVICE_PATH_VAR);
+}
+
+static char *u3_change_path(char *path, const char *old, const char *new)
+{
+
+  if(u3devicepath == (char*)-1) {
+    /* cache the device path */
+    u3devicepath =
+#ifdef _WIN32
+      getenv_utf8
+#else
+      getenv
+#endif
+      ("U3_DEVICE_PATH");
+  }
+
+  if(new == NULL)
+    new = u3devicepath;
+  if(old == NULL)
+    old = u3devicepath;
+
+  if(newpath != NULL) {
+    g_free(newpath);
+    newpath = NULL;
+  }
+
+  if((path != NULL) && (u3devicepath != NULL) && (strncmp(path, old, strlen(old)) == 0)) {
+
+    newpath = g_strconcat(new, path + strlen(old), NULL);
+
+    return newpath;
+
+  }
+
+  return path;
+
+}