putenv
putenv("PATH=/usr/bin:/usr/local/bin");
int putenv(char *);
PROTO_NORMAL(putenv);
DEF_WEAK(putenv);
putenv(s);
if (putenv("USER=nobody") != 0) {
putenv("LD_BIND_NOW=");
putenv("LIBC_NOUSERTC=");
if (putenv("PATH="_PATH_DEFPATH) < 0) {
putenv(passenv);
putenv("LIBXDP_SKIP_DISPATCHER=1");
(void)putenv("TZ=UTC");
(void)putenv("TZ=UTC");