diff options
Diffstat (limited to 'lib/zlib/inflate.c')
-rw-r--r-- | lib/zlib/inflate.c | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/lib/zlib/inflate.c b/lib/zlib/inflate.c index 8f767b7b9d2..f7e81fc8b2a 100644 --- a/lib/zlib/inflate.c +++ b/lib/zlib/inflate.c @@ -21,7 +21,7 @@ int ZEXPORT inflateReset(z_streamp strm) state->head = Z_NULL; state->wsize = 0; state->whave = 0; - state->write = 0; + state->wnext = 0; state->hold = 0; state->bits = 0; state->lencode = state->distcode = state->next = state->codes; @@ -30,14 +30,11 @@ int ZEXPORT inflateReset(z_streamp strm) return Z_OK; } -int ZEXPORT inflateInit2_(z_streamp strm, int windowBits, const char *version, +int ZEXPORT inflateInit2_(z_streamp strm, int windowBits, int stream_size) { struct inflate_state FAR *state; - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != (int)(sizeof(z_stream))) - return Z_VERSION_ERROR; if (strm == Z_NULL) return Z_STREAM_ERROR; strm->msg = Z_NULL; /* in case we return an error */ if (strm->zalloc == (alloc_func)0) { @@ -70,9 +67,9 @@ int ZEXPORT inflateInit2_(z_streamp strm, int windowBits, const char *version, return inflateReset(strm); } -int ZEXPORT inflateInit_(z_streamp strm, const char *version, int stream_size) +int ZEXPORT inflateInit_(z_streamp strm, int stream_size) { - return inflateInit2_(strm, DEF_WBITS, version, stream_size); + return inflateInit2_(strm, DEF_WBITS, stream_size); } local void fixedtables(struct inflate_state FAR *state) @@ -115,7 +112,7 @@ local int updatewindow(z_streamp strm, unsigned out) /* if window not in use yet, initialize */ if (state->wsize == 0) { state->wsize = 1U << state->wbits; - state->write = 0; + state->wnext = 0; state->whave = 0; } @@ -123,22 +120,22 @@ local int updatewindow(z_streamp strm, unsigned out) copy = out - strm->avail_out; if (copy >= state->wsize) { zmemcpy(state->window, strm->next_out - state->wsize, state->wsize); - state->write = 0; + state->wnext = 0; state->whave = state->wsize; } else { - dist = state->wsize - state->write; + dist = state->wsize - state->wnext; if (dist > copy) dist = copy; - zmemcpy(state->window + state->write, strm->next_out - copy, dist); + zmemcpy(state->window + state->wnext, strm->next_out - copy, dist); copy -= dist; if (copy) { zmemcpy(state->window, strm->next_out - copy, copy); - state->write = copy; + state->wnext = copy; state->whave = state->wsize; } else { - state->write += dist; - if (state->write == state->wsize) state->write = 0; + state->wnext += dist; + if (state->wnext == state->wsize) state->wnext = 0; if (state->whave < state->wsize) state->whave += dist; } } @@ -823,12 +820,12 @@ int ZEXPORT inflate(z_streamp strm, int flush) copy = out - left; if (state->offset > copy) { /* copy from window */ copy = state->offset - copy; - if (copy > state->write) { - copy -= state->write; + if (copy > state->wnext) { + copy -= state->wnext; from = state->window + (state->wsize - copy); } else - from = state->window + (state->write - copy); + from = state->window + (state->wnext - copy); if (copy > state->length) copy = state->length; } else { /* copy from output */ |