libmount: allow to set parser callback to context

Signed-off-by: Karel Zak <kzak@redhat.com>

5 files changed, 35 insertions, 7 deletions

diff --git a/libmount/src/context.c b/libmount/src/context.c
index d65c8f152..f3eaae414 100644
--- a/libmount/src/context.c
+++ b/libmount/src/context.c
@@ -696,6 +696,8 @@ int mnt_context_get_fstab(struct libmnt_context *cxt, struct libmnt_table **tb)
 		cxt->fstab = mnt_new_table();
 		if (!cxt->fstab)
 			return -ENOMEM;
+		if (cxt->table_errcb)
+			mnt_table_set_parser_errcb(cxt->fstab, cxt->table_errcb);
 		cxt->flags &= ~MNT_FL_EXTERN_FSTAB;
 		rc = mnt_table_parse_fstab(cxt->fstab, NULL);
 		if (rc)
@@ -736,6 +738,8 @@ int mnt_context_get_mtab(struct libmnt_context *cxt, struct libmnt_table **tb)
 		cxt->mtab = mnt_new_table();
 		if (!cxt->mtab)
 			return -ENOMEM;
+		if (cxt->table_errcb)
+			mnt_table_set_parser_errcb(cxt->fstab, cxt->table_errcb);
 		rc = mnt_table_parse_mtab(cxt->mtab, cxt->mtab_path);
 		if (rc)
 			return rc;
@@ -750,6 +754,30 @@ int mnt_context_get_mtab(struct libmnt_context *cxt, struct libmnt_table **tb)
 }
 
 /**
+ * mnt_context_set_tables_errcb
+ * @cxt: mount context
+ * @cb: pointer to callback function
+ *
+ * The error callback is used for all tab files (e.g. mtab, fstab)
+ * parsed within the context.
+ *
+ * See also mnt_context_get_mtab(),
+ *          mnt_context_get_fstab(),
+ *          mnt_table_set_parser_errcb().
+ *
+ * Returns: 0 on success, negative number in case of error.
+ */
+int mnt_context_set_tables_errcb(struct libmnt_context *cxt,
+	int (*cb)(struct libmnt_table *tb, const char *filename, int line))
+{
+	if (!cxt)
+		return -EINVAL;
+
+	cxt->table_errcb = cb;
+	return 0;
+}
+
+/**
  * mnt_context_set_cache:
  * @cxt: mount context
  * @cache: cache instance or nULL
diff --git a/libmount/src/fs.c b/libmount/src/fs.c
index 02f401d95..dc6009cf9 100644
--- a/libmount/src/fs.c
+++ b/libmount/src/fs.c
@@ -1220,13 +1220,7 @@ int mnt_fs_match_fstype(struct libmnt_fs *fs, const char *types)
  */
 int mnt_fs_match_options(struct libmnt_fs *fs, const char *options)
 {
-	char *o = mnt_fs_strdup_options(fs);
-	int rc = 0;
-
-	if (o)
-		rc = mnt_match_options(o, options);
-	free(o);
-	return rc;
+	return mnt_match_options(mnt_fs_get_options(fs), options);
 }
 
 /**
diff --git a/libmount/src/libmount.h.in b/libmount/src/libmount.h.in
index 18d0739ca..b9d4db69d 100644
--- a/libmount/src/libmount.h.in
+++ b/libmount/src/libmount.h.in
@@ -412,6 +412,8 @@ extern int mnt_context_set_fstype_pattern(struct libmnt_context *cxt,
 extern int mnt_context_set_options_pattern(struct libmnt_context *cxt,
 				      const char *pattern);
 
+extern int mnt_context_set_tables_errcb(struct libmnt_context *cxt,
+        int (*cb)(struct libmnt_table *tb, const char *filename, int line));
 extern int mnt_context_set_fstab(struct libmnt_context *cxt,
 				 struct libmnt_table *tb);
 extern int mnt_context_get_fstab(struct libmnt_context *cxt,
diff --git a/libmount/src/libmount.sym b/libmount/src/libmount.sym
index a49891650..889309379 100644
--- a/libmount/src/libmount.sym
+++ b/libmount/src/libmount.sym
@@ -61,6 +61,7 @@ global:
 	mnt_context_set_optsmode;
 	mnt_context_set_source;
 	mnt_context_set_syscall_status;
+	mnt_context_set_tables_errcb;
 	mnt_context_set_target;
 	mnt_context_set_user_mflags;
 	mnt_context_strerror;
diff --git a/libmount/src/mountP.h b/libmount/src/mountP.h
index 8c63fbd4e..9c85e13b5 100644
--- a/libmount/src/mountP.h
+++ b/libmount/src/mountP.h
@@ -258,6 +258,9 @@ struct libmnt_context
 	struct libmnt_table *fstab;	/* fstab (or mtab for some remounts) entries */
 	struct libmnt_table *mtab;	/* mtab entries */
 
+	int	(*table_errcb)(struct libmnt_table *tb,	/* callback for libmnt_table structs */
+			 const char *filename, int line);
+
 	int	optsmode;	/* fstab optstr mode MNT_OPTSMODE_{AUTO,FORCE,IGNORE} */
 	int	loopdev_fd;	/* open loopdev */