722                 state->head->extra = Z_NULL;  in inflate()
731                         state->head->extra != Z_NULL &&  in inflate()
734                         zmemcpy(state->head->extra + len, next,  in inflate()
1073             state->extra = (unsigned)(here.op) & 15;  in inflate()
1077             if (state->extra) {  in inflate()
1078                 NEEDBITS(state->extra);  in inflate()
1079                 state->length += BITS(state->extra);  in inflate()
1080                 DROPBITS(state->extra);  in inflate()
1081                 state->back += state->extra;  in inflate()
1112             state->extra = (unsigned)(here.op) & 15;  in inflate()
1116             if (state->extra) {  in inflate()
1117                 NEEDBITS(state->extra);  in inflate()
1118                 state->offset += BITS(state->extra);  in inflate()
1119                 DROPBITS(state->extra);  in inflate()
1120                 state->back += state->extra;  in inflate()