From 37da2899f40661e3e9631e497da8dc59b971cbd0 Mon Sep 17 00:00:00 2001 From: "Charles.Forsyth" Date: Fri, 22 Dec 2006 17:07:39 +0000 Subject: 20060303a --- liblogfs/perm.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 liblogfs/perm.c (limited to 'liblogfs/perm.c') diff --git a/liblogfs/perm.c b/liblogfs/perm.c new file mode 100644 index 00000000..9ac8d976 --- /dev/null +++ b/liblogfs/perm.c @@ -0,0 +1,25 @@ +#include "lib9.h" +#include "logfs.h" +#include "local.h" + +int +logfsuserpermcheck(LogfsServer *s, Entry *e, Fid *f, ulong permmask) +{ + if(s->openflags & LogfsOpenFlagNoPerm) + return 1; + if((e->perm & permmask) == permmask) + /* the whole world can do this */ + return 1; + if(((e->perm >> 6) & permmask) == permmask) { + /* maybe we're the owner */ + char *uname = logfsisfindnamefromid(s->is, e->uid); + if(uname == f->uname) + return 1; + } + if(((e->perm >> 3) & permmask) == permmask) { + /* maybe we're in the group */ + Group *g = logfsisfindgroupfromid(s->is, e->gid); + return g && logfsisgroupunameismember(s->is, g, f->uname); + } + return 0; +} -- cgit v1.2.3