tree 09f276cf9d3c3c33ce91fec1807c29b3891010ec
parent 799c87c0d8fc5af306f8c7a160dfd3d75746c2ce
author Mark Adler <madler@alumni.caltech.edu> 1398383136 -0400
committer Mark Adler <madler@alumni.caltech.edu> 1398383136 -0400

Assure that gzoffset() is correct when appending.

An open() with O_APPEND followed by an lseek() to determine the
position will return zero for a non-empty file, even though the
next write will start at the end of the file.  This commit works
around that by doing an lseek() to the end when appending.