fs-api: fs_set_metadata() - Disallow '_' in metadata names

diff --git a/src/lib-fs/fs-api.c b/src/lib-fs/fs-api.c
index 4c869625ac7c258eaba263225f7985b076780d3e..af06ed6b3936e3799da0fa284923f63c018062a0 100644 (file)
--- a/src/lib-fs/fs-api.c
+++ b/src/lib-fs/fs-api.c
@@ -444,6 +444,7 @@ void fs_set_metadata(struct fs_file *file, const char *key, const char *value)
 {
        i_assert(key != NULL);
        i_assert(value != NULL);
+       i_assert(strchr(key, '_') == NULL);
 
        if (file->fs->v.set_metadata != NULL) T_BEGIN {
                file->fs->v.set_metadata(file, key, value);