tree 21907e510662d00b26b803af9a210bb768657065
parent ef36c6362f3f3853f21b8a6359bcd06576ebf207
author Lasse Collin <lasse.collin@tukaani.org> 1490892465 +0300
committer Lasse Collin <lasse.collin@tukaani.org> 1490892744 +0300

liblzma: Fix lzma_memlimit_set(strm, 0).

The 0 got treated specially in a buggy way and as a result
the function did nothing. The API doc said that 0 was supposed
to return LZMA_PROG_ERROR but it didn't.

Now 0 is treated as if 1 had been specified. This is done because
0 is already used to indicate an error from lzma_memlimit_get()
and lzma_memusage().

In addition, lzma_memlimit_set() no longer checks that the new
limit is at least LZMA_MEMUSAGE_BASE. It's counter-productive
for the Index decoder and was actually needed only by the
auto decoder. Auto decoder has now been modified to check for
LZMA_MEMUSAGE_BASE.