1 files changed, 113 insertions, 0 deletions
diff --git a/libs/pbd3/mountpoint.cc b/libs/pbd3/mountpoint.cc
new file mode 100644
index 0000000000..160f5e921c
--- /dev/null
+++ b/libs/pbd3/mountpoint.cc
@@ -0,0 +1,113 @@
+/*
+    Copyright (C) 2002 Paul Davis 
+
+    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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#include <cstdio>
+#include <string>
+#include <limits.h>
+
+#include <pbd/mountpoint.h>
+
+using std::string;
+
+#if HAVE_GETMNTENT
+#include <mntent.h>
+
+struct mntent_sorter {
+    bool operator() (const mntent *a, const mntent *b) {
+	    return strcmp (a->mnt_dir, b->mnt_dir);
+    }
+};
+
+string
+mountpoint (string path)
+{
+	FILE *mntf;
+	mntent *mnt;
+	unsigned int maxmatch = 0;
+	unsigned int matchlen;
+	const char *cpath = path.c_str();
+	char best[PATH_MAX+1];
+	
+	if ((mntf = setmntent ("/etc/mtab", "r")) == 0) {
+		return "";
+	}
+
+	best[0] = '\0';
+
+	while ((mnt = getmntent (mntf))) {
+		unsigned int n;
+
+		n = 0;
+		matchlen = 0;
+
+		/* note: strcmp's semantics are not 
+		   strict enough to use for this.
+		*/
+
+		while (cpath[n] && mnt->mnt_dir[n]) {
+			if (cpath[n] != mnt->mnt_dir[n]) {
+				break;
+			}
+			matchlen++;
+			n++;
+		}
+
+		if (cpath[matchlen] == '\0') {
+
+			endmntent (mntf);
+			return mnt->mnt_dir;
+
+		} else {
+
+			if (matchlen > maxmatch) {
+				snprintf (best, sizeof(best), "%s", mnt->mnt_dir);
+				maxmatch = matchlen;
+			}
+		}
+	}
+
+	endmntent (mntf);
+
+	return best;
+}
+
+#else // no getmntent()
+
+#include <sys/param.h>
+#include <sys/ucred.h>
+#include <sys/mount.h>
+
+string
+mountpoint (string path)
+{
+//XXX IMPLEMENT ME using getmntinfo() or getfsstat().
+	return "/";
+}
+#endif
+
+#ifdef TEST_MOUNTPOINT
+		
+main (int argc, char *argv[])
+{
+	printf ("mp of %s = %s\n", argv[1], mountpoint (argv[1]).c_str());
+	exit (0);
+}
+
+#endif