gfs_glob_init - allocates memory for types of path names
char *gfs_glob_init (gfs_glob_t * listp);
gfs_glob_init() allocates memory space for gfs_glob(3) and
gfs_glob_add(3). The memory space is stored to listp.
NULL The function terminated successfully.
Insufficient memory was available.
Others An error except the above occurred. The reason is shown by its
gfs_glob(3) gfs_glob_add(3) gfs_glob_free(3)