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Avoid internal error with --format=xz --lzma1.

This commit is contained in:
Lasse Collin 2009-07-20 15:43:32 +03:00
parent 99f9e879a6
commit 8f8ec942d6
1 changed files with 12 additions and 4 deletions
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16
src/xz/coder.c
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@ -151,12 +151,20 @@ coder_set_compression_settings(void)
// Terminate the filter options array.
filters[filters_count].id = LZMA_VLI_UNKNOWN;
// If we are using the LZMA_Alone format, allow exactly one filter
// which has to be LZMA.
// If we are using the .lzma format, allow exactly one filter
// which has to be LZMA1.
if (opt_format == FORMAT_LZMA && (filters_count != 1
|| filters[0].id != LZMA_FILTER_LZMA1))
message_fatal(_("With --format=lzma only the LZMA1 filter "
"is supported"));
message_fatal(_("The .lzma format supports only "
"the LZMA1 filter"));
// If we are using the .xz format, make sure that there is no LZMA1
// filter to prevent LZMA_PROG_ERROR.
if (opt_format == FORMAT_XZ)
for (size_t i = 0; i < filters_count; ++i)
if (filters[i].id == LZMA_FILTER_LZMA1)
message_fatal(_("LZMA1 cannot be used "
"with the .xz format"));
// Print the selected filter chain.
message_filters(V_DEBUG, filters);