X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=bootcensus;a=blobdiff_plain;f=src%2Fmtab.c;fp=src%2Fmtab.c;h=3d5f169cde32ae8b90a2916b4a731993f137e0e3;hp=0000000000000000000000000000000000000000;hb=137aca58851528e77004dc3909826f24bbdbde87;hpb=81c11bdd80190ec319a82b0402173cfb65fcbf72

diff --git a/src/mtab.c b/src/mtab.c
new file mode 100644
index 0000000..3d5f169
--- /dev/null
+++ b/src/mtab.c
@@ -0,0 +1,63 @@
+/*
+pcboot - bootable PC demo/game kernel
+Copyright (C) 2018-2019  John Tsiombikas <nuclear@member.fsf.org>
+
+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 3 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, see <https://www.gnu.org/licenses/>.
+*/
+#include <stdlib.h>
+#include "mtab.h"
+
+int mtab_add(struct fs_node *node, struct filesys *fs)
+{
+	struct mount *m;
+
+	if(!(m = malloc(sizeof *m))) {
+		return -1;
+	}
+	m->mpt = node;
+	m->fs = fs;
+	m->next = 0;
+
+	if(mnt_list) {
+		mnt_tail->next = m;
+		mnt_tail = m;
+	} else {
+		mnt_list = mnt_tail = m;
+	}
+	mnt_count++;
+	return 0;
+}
+
+int mtab_remove_node(struct fs_node *node)
+{
+	int res = -1;
+	struct mount dummy;
+	struct mount *prev, *m;
+
+	dummy.next = mnt_list;
+	prev = &dummy;
+
+	while(prev->next) {
+		m = prev->next;
+		if(m->mpt == node) {
+			prev->next = m->next;
+			free(m);
+			res = 0;
+			break;
+		}
+		prev = prev->next;
+	}
+	mnt_list = dummy.next;
+	return res;
+}