From ecd073bd7054c9e13516041e3ef930e39270c8df Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Fri, 19 Jun 2009 10:27:38 +0000 Subject: Add fuse_getgroups (high level lib) and fuse_req_getgroups (low level lib) functions to query the supplementary group IDs for the current request. Currently this is implemented on Linux by reading from the /proc filesystem. --- include/fuse.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include/fuse.h') diff --git a/include/fuse.h b/include/fuse.h index 6ded4f5..a58cd9f 100644 --- a/include/fuse.h +++ b/include/fuse.h @@ -623,6 +623,26 @@ int fuse_loop_mt(struct fuse *f); */ struct fuse_context *fuse_get_context(void); +/** + * Get the current supplementary group IDs for the current request + * + * Similar to the getgroups(2) system call, except the return value is + * always the total number of group IDs, even if it is larger than the + * specified size. + * + * The current fuse kernel module in linux (as of 2.6.30) doesn't pass + * the group list to userspace, hence this function needs to parse + * "/proc/$TID/task/$TID/status" to get the group IDs. + * + * This feature may not be supported on all operating systems. In + * such a case this function will return -ENOSYS. + * + * @param size size of given array + * @param list array of group IDs to be filled in + * @return the total number of supplementary group IDs or -errno on failure + */ +int fuse_getgroups(int size, gid_t list[]); + /** * Check if the current request has already been interrupted * -- cgit v1.2.3