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From: Michael Olbrich <m.olbrich@pengutronix.de>
Date: Wed, 12 Sep 2012 09:24:54 +0200
Subject: [PATCH] HACK: use the environment variable UNFS_BASE as root
directory
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
---
backend_unix.h | 3 ++-
readdir.c | 16 ++++++++++++++++
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/backend_unix.h b/backend_unix.h
index 713288da5bef..62dad8336e83 100644
--- a/backend_unix.h
+++ b/backend_unix.h
@@ -23,6 +23,7 @@
/*
* system calls
*/
+char *realpath_unix(const char *path, char *resolved_path);
#define backend_chmod chmod
#define backend_chown chown
#define backend_close close
@@ -49,7 +50,7 @@
#define backend_pwrite pwrite
#define backend_readdir readdir
#define backend_readlink readlink
-#define backend_realpath realpath
+#define backend_realpath realpath_unix
#define backend_remove remove
#define backend_rename rename
#define backend_rmdir rmdir
diff --git a/readdir.c b/readdir.c
index 0e7290c68ae8..53b0bfc9e7dd 100644
--- a/readdir.c
+++ b/readdir.c
@@ -213,3 +213,19 @@ READDIR3res read_dir(const char *path, cookie3 cookie, cookieverf3 verf,
return result;
}
+
+char *realpath_unix(const char *path, char *resolved_path)
+{
+ char *base = getenv("UNFS_BASE");
+ char *p;
+
+ if (base) {
+ p = malloc(strlen(base) + strlen(path) + 1);
+ strcpy(p, base);
+ strcat(p, path);
+ resolved_path = realpath(p, resolved_path);
+ free(p);
+ return resolved_path;
+ }
+ return realpath(path, resolved_path);
+}
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