Add inflateReset.3

2 files changed, 69 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 121054e..0127b46 100644
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,7 @@ MAN += inflateEnd.3
 MAN += inflateGetDictionary.3
 MAN += inflateInit.3
 MAN += inflateInit2.3
+MAN += inflateReset.3
 MAN += inflateSetDictionary.3
 MAN += inflateSync.3
 MAN += uncompress.3
@@ -33,6 +34,7 @@ MAN += zlibVersion.3
 MLINKS += adler32.3 adler32_z.3
 MLINKS += compress.3 compress2.3
 MLINKS += crc32.3 crc32_z.3
+MLINKS += inflateReset.3 inflateReset2.3
 MLINKS += uncompress.3 uncompress2.3
 
 .include <bsd.lib.mk>
diff --git a/inflateReset.3 b/inflateReset.3
new file mode 100644
index 0000000..fa9c8cc
--- /dev/null
+++ b/inflateReset.3
@@ -0,0 +1,67 @@
+.Dd November 11, 2018
+.Dt INFLATERESET 3
+.Os
+.
+.Sh NAME
+.Nm inflateReset ,
+.Nm inflateReset2
+.Nd reset inflate stream
+.
+.Sh LIBRARY
+.Lb libz
+.
+.Sh SYNOPSIS
+.In zlib.h
+.Ft int
+.Fn inflateReset "z_streamp strm"
+.Ft int
+.Fn inflateReset2 "z_streamp strm" "int windowBits"
+.
+.Sh DESCRIPTION
+This function is equivalent to
+.Xr inflateEnd 3
+followed by
+.Xr inflateInit 3 ,
+but does not free and reallocate
+the internal decompression state.
+The stream will keep attributes
+that may have been set by
+.Xr inflateInit2 3 .
+.
+.Pp
+.Fn inflateReset2
+is the same as
+.Fn inflateReset ,
+but it also permits changing
+the wrap and window size requests.
+The
+.Fa windowBits
+parameter is interpreted the same as it is for
+.Xr inflateInit2 3 .
+If the window size is changed,
+then the memory allocated for the window is freed,
+and the window will be reallocated by
+.Xr inflate 3
+if needed.
+.
+.Sh RETURN VALUES
+.Fn inflateReset
+and
+.Fn inflateReset2
+return
+.Dv Z_OK
+if success,
+or
+.Dv Z_STREAM_ERROR
+if the source stream state was inconsistent
+.Po
+such as
+.Fa zalloc
+or
+.Fa state
+being
+.Dv Z_NULL
+.Pc ,
+or if the
+.Fa windowBits
+parameter is invalid.