fw_envp
if (_fw_envp != NULL && fw_envp(0) != NULL) {
yamon = (strchr(fw_envp(index), '=') == NULL);
while (fw_envp(index)) {
if (strncmp(envname, fw_envp(index), i) == 0) {
result = fw_envp(index + 1);
} else if (fw_envp(index)[i] == '=') {
result = fw_envp(index) + i + 1;