Merge branch 'master' of git+ssh://openadk.org/git/openadk

1 files changed, 85 insertions, 0 deletions

diff --git a/package/aufs2-util/src/proc_mnt.c b/package/aufs2-util/src/proc_mnt.c
new file mode 100644
index 000000000..5230aa259
--- /dev/null
+++ b/package/aufs2-util/src/proc_mnt.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2005-2009 Junjiro Okajima
+ *
+ * This program, aufs 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <mntent.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "au_util.h"
+
+#define ProcMounts "/proc/self/mounts"
+
+static void copy_ent(struct mntent *dst, struct mntent *src)
+{
+	free(dst->mnt_opts);
+	free(dst->mnt_type);
+	free(dst->mnt_dir);
+	free(dst->mnt_fsname);
+
+	dst->mnt_dir = NULL;
+	dst->mnt_type = NULL;
+	dst->mnt_opts = NULL;
+
+	dst->mnt_fsname = strdup(src->mnt_fsname);
+	if (dst->mnt_fsname)
+		dst->mnt_dir = strdup(src->mnt_dir);
+	if (dst->mnt_dir)
+		dst->mnt_type = strdup(src->mnt_type);
+	if (dst->mnt_type)
+		dst->mnt_opts = strdup(src->mnt_opts);
+	if (dst->mnt_opts) {
+		dst->mnt_freq = src->mnt_freq;
+		dst->mnt_passno = src->mnt_passno;
+	} else
+		AuFin("strdup");
+
+}
+
+int au_proc_getmntent(char *mntpnt, struct mntent *rent)
+{
+	int found;
+	struct mntent *p;
+	FILE *fp;
+
+	fp = setmntent(ProcMounts, "r");
+	if (!fp)
+		AuFin(ProcMounts);
+
+	/* find the last one */
+	memset(rent, 0, sizeof(*rent));
+	found = 0;
+	while ((p = getmntent(fp)))
+		if (!strcmp(p->mnt_dir, mntpnt)) {
+			Dpri("%s, %s, %s, %s, %d, %d\n",
+			     p->mnt_fsname, p->mnt_dir, p->mnt_type,
+			     p->mnt_opts, p->mnt_freq, p->mnt_passno);
+			copy_ent(rent, p);
+			found = 1;
+		}
+	endmntent(fp);
+
+	if (!found) {
+		errno = EINVAL;
+		AuFin("%s", mntpnt);
+	}
+
+	return 0;
+}