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Fix a crash with --format=alone if other filters than LZMA 

are specified on the command line.
This commit is contained in:
Lasse Collin 2008-04-30 22:16:17 +03:00
parent 2f361ac19b
commit 8e074349e4
1 changed files with 9 additions and 0 deletions
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9
src/lzma/args.c
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@ -462,6 +462,15 @@ set_compression_settings(void)
// Terminate the filter options array.
opt_filters[filter_count].id = LZMA_VLI_VALUE_UNKNOWN;
// If we are using the LZMA_Alone format, allow exactly one filter
// which has to be LZMA.
if (opt_header == HEADER_ALONE && (filter_count != 1
|| opt_filters[0].id != LZMA_FILTER_LZMA)) {
errmsg(V_ERROR, _("With --format=alone only the LZMA filter "
"is supported"));
my_exit(ERROR);
}
// Optimize the filter chain a little by removing all
// Copy filters.
for (size_t i = 0; opt_filters[i].id != LZMA_VLI_VALUE_UNKNOWN; ++i) {