Messages in this thread Patch in this message |  | | From | Pádraig Brady <> | Subject | [PATCH] symlink: allow an empty target string | Date | Thu, 17 Jan 2013 13:03:53 +0000 |
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POSIX only states that ENOENT should be returned if an empty string is specified for the link name. In fact it states the link target... "shall be treated only as a character string and shall not be validated as a pathname".
Signed-off-by: Pádraig Brady <P@draigBrady.com> --- fs/namei.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/fs/namei.c b/fs/namei.c index 43a97ee..26dd264 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3533,12 +3533,13 @@ SYSCALL_DEFINE3(symlinkat, const char __user *, oldname, int, newdfd, const char __user *, newname) { int error; + int empty; struct filename *from; struct dentry *dentry; struct path path; unsigned int lookup_flags = 0; - from = getname(oldname); + from = getname_flags(oldname, LOOKUP_EMPTY, &empty); if (IS_ERR(from)) return PTR_ERR(from); retry: -- 1.7.6.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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