From 3023f1af531cf38e7e546ad9f04d73cf43fd2735 Mon Sep 17 00:00:00 2001
From: Laurent Vivier <Laurent@lvivier.info>
Date: Thu, 24 Jul 2008 01:44:45 +0000
Subject: [PATCH] Manage one level software link

---
 libext2/ext2_open.c  | 26 ++++++++++++++++++++++++++
 libext2/ext2_utils.c | 11 +++++++++--
 2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/libext2/ext2_open.c b/libext2/ext2_open.c
index fdcdf14..29f87c4 100644
--- a/libext2/ext2_open.c
+++ b/libext2/ext2_open.c
@@ -5,6 +5,12 @@
  */
 
 #include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <stdio.h>
 
 #include "libext2.h"
 #include "ext2.h"
@@ -30,6 +36,26 @@ stream_FILE* ext2_open(stream_VOLUME *volume, char* pathname)
 		free(inode);
 		return NULL;
 	}
+	if (S_ISLNK(inode->i_mode)) {
+		static char buffer[1024];
+		int i, last = 0;
+		strcpy(buffer, pathname);
+		for (i = 0; buffer[i]; i++)
+			if (buffer[i] == '/')
+				last = i;
+		buffer[last] = '/';
+		strcpy(buffer + last + 1, (char*)inode->i_block);
+		ino = ext2_seek_name((ext2_VOLUME*)volume, buffer);
+		if (ino == 0) {
+			free(inode);
+			return NULL;
+		}
+		ret = ext2_get_inode((ext2_VOLUME*)volume, ino, inode);
+		if (ret == -1) {
+			free(inode);
+			return NULL;
+		}
+	}
 
 	file = (ext2_FILE*)malloc(sizeof(ext2_FILE));
 	if (file == NULL) {
diff --git a/libext2/ext2_utils.c b/libext2/ext2_utils.c
index 338723e..eb03785 100644
--- a/libext2/ext2_utils.c
+++ b/libext2/ext2_utils.c
@@ -4,6 +4,9 @@
  *
  */
 
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
 #include <string.h>
 #include <asm/byteorder.h>
 
@@ -137,8 +140,12 @@ int ext2_get_inode(ext2_VOLUME* volume,
 	inode->i_links_count = __le16_to_cpu(le_inode->i_links_count);
 	inode->i_blocks = __le32_to_cpu(le_inode->i_blocks);
 	inode->i_flags = __le32_to_cpu(le_inode->i_flags);
-	for (i = 0; i < EXT2_N_BLOCKS; i++)
-		inode->i_block[i] = __le32_to_cpu(le_inode->i_block[i]);
+	if (S_ISLNK(inode->i_mode)) {
+		memcpy(inode->i_block, le_inode->i_block, EXT2_N_BLOCKS * 4);
+	} else {
+		for (i = 0; i < EXT2_N_BLOCKS; i++)
+			inode->i_block[i] = __le32_to_cpu(le_inode->i_block[i]);
+        }
 	inode->i_generation = __le32_to_cpu(le_inode->i_generation);
 	inode->i_file_acl = __le32_to_cpu(le_inode->i_file_acl);
 	inode->i_dir_acl = __le32_to_cpu(le_inode->i_dir_acl);