gbuf 50 lib/nss_wrapper/nss_wrapper.h int nwrap_getgrnam_r(const char *name, struct group *gbuf, gbuf 53 lib/nss_wrapper/nss_wrapper.h int nwrap_getgrgid_r(gid_t gid, struct group *gbuf, gbuf 57 lib/nss_wrapper/nss_wrapper.h int nwrap_getgrent_r(struct group *gbuf, char *buf,