More EPAN-related code movements. Get rid of usage of #include "globals.h"

and #include "util.h" from epan code. Move get_home_dir() into epan/filesystem.c
as it's used by plugins.c.

svn path=/trunk/; revision=2461

1 files changed, 118 insertions, 0 deletions

diff --git a/epan/filesystem.c b/epan/filesystem.c
new file mode 100644
index 0000000000..bd89677f90
--- /dev/null
+++ b/epan/filesystem.c
@@ -0,0 +1,118 @@
+/* filesystem.c
+ * Filesystem utility routines
+ *
+ * $Id: filesystem.c,v 1.1 2000/09/28 03:16:16 gram Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@zing.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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <glib.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifndef WIN32
+#include <pwd.h>
+#endif
+
+#include "filesystem.h"
+
+const char*
+get_home_dir(void)
+{
+	static const char *home = NULL;
+#ifdef WIN32
+	char *homedrive, *homepath;
+	char *homestring;
+	char *lastsep;
+#else
+	struct passwd *pwd;
+#endif
+
+	/* Return the cached value, if available */
+	if (home)
+		return home;
+#ifdef WIN32
+	/*
+	 * XXX - should we use USERPROFILE anywhere in this process?
+	 * Is there a chance that it might be set but one or more of
+	 * HOMEDRIVE or HOMEPATH isn't set?
+	 */
+	homedrive = getenv("HOMEDRIVE");
+	if (homedrive != NULL) {
+		homepath = getenv("HOMEPATH");
+		if (homepath != NULL) {
+			/*
+			 * This is cached, so we don't need to worry about
+			 * allocating multiple ones of them.
+			 */
+			homestring =
+			    g_malloc(strlen(homedrive) + strlen(homepath) + 1);
+			strcpy(homestring, homedrive);
+			strcat(homestring, homepath);
+
+			/*
+			 * Trim off any trailing slash or backslash.
+			 */
+			lastsep = find_last_pathname_separator(homestring);
+			if (lastsep != NULL && *(lastsep + 1) == '\0') {
+				/*
+				 * Last separator is the last character
+				 * in the string.  Nuke it.
+				 */
+				*lastsep = '\0';
+			}
+			home = homestring;
+		} else
+			home = homedrive;
+	} else {
+		/*
+		 * Try using "windir?
+		 */
+		home = "C:";
+	}
+#else
+	home = getenv("HOME");
+	if (home == NULL) {
+		/*
+		 * Get their home directory from the password file.
+		 * If we can't even find a password file entry for them,
+		 * use "/tmp".
+		 */
+		pwd = getpwuid(getuid());
+		if (pwd != NULL) {
+			/*
+			 * This is cached, so we don't need to worry
+			 * about allocating multiple ones of them.
+			 */
+			home = g_strdup(pwd->pw_dir);
+		} else
+			home = "/tmp";
+	}
+#endif
+
+	return home;
+}