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Fix the copy of pending_buf in deflateCopy() for the LIT_MEM case.

This commit is contained in:
Hans Wennborg 2023-12-20 12:26:25 +01:00 committed by Mark Adler
parent ee474ff2d1
commit 60c31985ec
2 changed files with 5 additions and 7 deletions
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10
deflate.c
View File

@ -493,11 +493,7 @@ int ZEXPORT deflateInit2_(z_streamp strm, int level, int method,
* symbols from which it is being constructed.
*/
#ifdef LIT_MEM
s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, 5);
#else
s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, 4);
#endif
s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, LIT_BUFS);
s->pending_buf_size = (ulg)s->lit_bufsize * 4;
if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
@ -1310,7 +1306,7 @@ int ZEXPORT deflateCopy(z_streamp dest, z_streamp source) {
ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos));
ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos));
ds->pending_buf = (uchf *) ZALLOC(dest, ds->lit_bufsize, 4);
ds->pending_buf = (uchf *) ZALLOC(dest, ds->lit_bufsize, LIT_BUFS);
if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
ds->pending_buf == Z_NULL) {
@ -1321,7 +1317,7 @@ int ZEXPORT deflateCopy(z_streamp dest, z_streamp source) {
zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos));
zmemcpy((voidpf)ds->head, (voidpf)ss->head, ds->hash_size * sizeof(Pos));
zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
zmemcpy(ds->pending_buf, ss->pending_buf, ds->lit_bufsize * LIT_BUFS);
ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
#ifdef LIT_MEM

2
deflate.h
View File

@ -222,9 +222,11 @@ typedef struct internal_state {
*/
#ifdef LIT_MEM
# define LIT_BUFS 5
ushf *d_buf; /* buffer for distances */
uchf *l_buf; /* buffer for literals/lengths */
#else
# define LIT_BUFS 4
uchf *sym_buf; /* buffer for distances and literals/lengths */
#endif