From 28397cae4102ac3f08576ebaf071ad92683097e8 Mon Sep 17 00:00:00 2001 From: Emmanuel Dreyfus Date: Thu, 2 Apr 2015 15:51:30 +0200 Subject: Avoid conflict between contrib/uuid and system uuid glusterfs relies on Linux uuid implementation, which API is incompatible with most other systems's uuid. As a result, libglusterfs has to embed contrib/uuid, which is the Linux implementation, on non Linux systems. This implementation is incompatible with systtem's built in, but the symbols have the same names. Usually this is not a problem because when we link with -lglusterfs, libc's symbols are trumped. However there is a problem when a program not linked with -lglusterfs will dlopen() glusterfs component. In such a case, libc's uuid implementation is already loaded in the calling program, and it will be used instead of libglusterfs's implementation, causing crashes. A possible workaround is to use pre-load libglusterfs in the calling program (using LD_PRELOAD on NetBSD for instance), but such a mechanism is not portable, nor is it flexible. A much better approach is to rename libglusterfs's uuid_* functions to gf_uuid_* to avoid any possible conflict. This is what this change attempts. BUG: 1206587 Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a Signed-off-by: Emmanuel Dreyfus Reviewed-on: http://review.gluster.org/10017 Tested-by: Gluster Build System Reviewed-by: Niels de Vos --- xlators/nfs/server/src/exports.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'xlators/nfs/server/src/exports.c') diff --git a/xlators/nfs/server/src/exports.c b/xlators/nfs/server/src/exports.c index af0cc7c24f2..30810361785 100644 --- a/xlators/nfs/server/src/exports.c +++ b/xlators/nfs/server/src/exports.c @@ -397,7 +397,7 @@ exp_file_dir_from_uuid (const struct exports_file *file, data_t *dirdata = NULL; struct export_dir *dir = NULL; - uuid_unparse (export_uuid, export_uuid_str); + gf_uuid_unparse (export_uuid, export_uuid_str); dirdata = dict_get (file->exports_map, export_uuid_str); if (dirdata) @@ -441,7 +441,7 @@ _exp_file_insert (struct exports_file *file, struct export_dir *dir) hashedval = SuperFastHash (dirdup, strlen (dirdup)); memset (export_uuid, 0, sizeof (export_uuid)); memcpy (export_uuid, &hashedval, sizeof (hashedval)); - uuid_unparse (export_uuid, export_uuid_str); + gf_uuid_unparse (export_uuid, export_uuid_str); dict_set (file->exports_map, export_uuid_str, dirdata); out: -- cgit