diff options
| -rw-r--r-- | lib/libz/compress.3 | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/lib/libz/compress.3 b/lib/libz/compress.3 index b5d1e74f1e2..18a8ac1ed6f 100644 --- a/lib/libz/compress.3 +++ b/lib/libz/compress.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: compress.3,v 1.30 2024/07/25 17:25:59 tb Exp $ +.\" $OpenBSD: compress.3,v 1.31 2024/07/25 17:29:51 tb Exp $ .\" .\" Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler .\" @@ -42,6 +42,7 @@ .Nm deflateTune , .Nm deflateBound , .Nm deflatePending , +.Nm deflateUsed , .Nm deflatePrime , .Nm deflateSetHeader , .Nm inflateInit2 , @@ -138,6 +139,8 @@ Advanced functions .Ft int .Fn deflatePending "z_streamp strm" "unsigned *pending" "int *bits" .Ft int +.Fn deflateUsed "z_streamp strm" "int *bits" +.Ft int .Fn deflatePrime "z_streamp strm" "int bits" "int value" .Ft int .Fn deflateSetHeader "z_streamp strm" "gz_headerp head" @@ -1516,6 +1519,25 @@ if success, or if the source stream state was inconsistent. .It Xo .Fa int +.Fn deflateUsed "z_streamp strm" "int *bits" ; +.Xc +.Pp +.Fn deflateUsed +returns in +.Pf * Fa bits +the most recent number of deflate bits used in the last byte +when flushing to a byte boundary. +The result is in the range 1..8, or 0 if there has not yet been a flush. +This helps determine the location of the last bit of a deflate stream. +.Pp +.Fn deflateUsed +returns +.Dv Z_OK +if success, or +.Dv Z_STREAM_ERROR +if the source stream state was inconsistent. +.It Xo +.Fa int .Fn deflatePrime "z_streamp strm" "int bits" "int value" ; .Xc .Pp |