59 #define DEFLATE_RESET_HOOK(strm) do {} while (0)  argument
60 #define DEFLATE_HOOK(strm, flush, bstate) 0  argument
61 #define DEFLATE_NEED_CHECKSUM(strm) 1  argument
78 static int read_buf        (z_streamp strm, Byte *buf, unsigned size);
189 	z_streamp strm,  in zlib_deflateInit2()  argument
207     if (strm == NULL) return Z_STREAM_ERROR;  in zlib_deflateInit2()
209     strm->msg = NULL;  in zlib_deflateInit2()
213     mem = (deflate_workspace *) strm->workspace;  in zlib_deflateInit2()
248     strm->state = (struct internal_state *)s;  in zlib_deflateInit2()
249     s->strm = strm;  in zlib_deflateInit2()
278     return zlib_deflateReset(strm);  in zlib_deflateInit2()
283 	z_streamp strm  in zlib_deflateReset()  argument
288     if (strm == NULL || strm->state == NULL)  in zlib_deflateReset()
291     strm->total_in = strm->total_out = 0;  in zlib_deflateReset()
292     strm->msg = NULL;  in zlib_deflateReset()
293     strm->data_type = Z_UNKNOWN;  in zlib_deflateReset()
295     s = (deflate_state *)strm->state;  in zlib_deflateReset()
303     strm->adler = 1;  in zlib_deflateReset()
309     DEFLATE_RESET_HOOK(strm);  in zlib_deflateReset()
330 	z_streamp strm,  in zlib_deflate()  argument
337     if (strm == NULL || strm->state == NULL ||  in zlib_deflate()
341     s = (deflate_state *) strm->state;  in zlib_deflate()
343     if ((strm->next_in == NULL && strm->avail_in != 0) ||  in zlib_deflate()
347     if (strm->avail_out == 0) return Z_BUF_ERROR;  in zlib_deflate()
349     s->strm = strm; /* just in case */  in zlib_deflate()
369 	    putShortMSB(s, (uInt)(strm->adler >> 16));  in zlib_deflate()
370 	    putShortMSB(s, (uInt)(strm->adler & 0xffff));  in zlib_deflate()
372 	strm->adler = 1L;  in zlib_deflate()
377         flush_pending(strm);  in zlib_deflate()
378         if (strm->avail_out == 0) {  in zlib_deflate()
393     } else if (strm->avail_in == 0 && flush <= old_flush &&  in zlib_deflate()
399     if (s->status == FINISH_STATE && strm->avail_in != 0) {  in zlib_deflate()
405     if (strm->avail_in != 0 || s->lookahead != 0 ||  in zlib_deflate()
409 	bstate = DEFLATE_HOOK(strm, flush, &bstate) ? bstate :  in zlib_deflate()
416 	    if (strm->avail_out == 0) {  in zlib_deflate()
444             flush_pending(strm);  in zlib_deflate()
445 	    if (strm->avail_out == 0) {  in zlib_deflate()
451     Assert(strm->avail_out > 0, "bug2");  in zlib_deflate()
457 	putShortMSB(s, (uInt)(strm->adler >> 16));  in zlib_deflate()
458 	putShortMSB(s, (uInt)(strm->adler & 0xffff));  in zlib_deflate()
460     flush_pending(strm);  in zlib_deflate()
476 	z_streamp strm  in zlib_deflateEnd()  argument
482     if (strm == NULL || strm->state == NULL) return Z_STREAM_ERROR;  in zlib_deflateEnd()
483     s = (deflate_state *) strm->state;  in zlib_deflateEnd()
491     strm->state = NULL;  in zlib_deflateEnd()
504 	z_streamp strm,  in read_buf()  argument
509     unsigned len = strm->avail_in;  in read_buf()
514     strm->avail_in  -= len;  in read_buf()
516     if (!DEFLATE_NEED_CHECKSUM(strm)) {}  in read_buf()
517     else if (!((deflate_state *)(strm->state))->noheader) {  in read_buf()
518         strm->adler = zlib_adler32(strm->adler, strm->next_in, len);  in read_buf()
520     memcpy(buf, strm->next_in, len);  in read_buf()
521     strm->next_in  += len;  in read_buf()
522     strm->total_in += len;  in read_buf()
801         if (s->strm->avail_in == 0) return;  in fill_window()
816         n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more);  in fill_window()
831     } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);  in fill_window()
845    flush_pending(s->strm); \
852    if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \
1114             if (s->strm->avail_out == 0) return need_more;  in deflate_slow()