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Fix buffer overflow in ffindex_from_fasta #265

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Fix buffer overflow in ffindex_from_fasta #265

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12 changes: 12 additions & 0 deletions lib/ffindex/src/ffindex_from_fasta.c
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Original file line number Diff line number Diff line change
Expand Up @@ -148,6 +148,18 @@ int main(int argn, char **argv)
name[seq_id_length++] = *(fasta_data + fasta_offset);
}

if(seq_id_length >= FFINDEX_MAX_ENTRY_NAME_LENTH)
{
fprintf(stderr, "Error: The id of entry %d is longer than the maximum of %d characters\n", seq_id, FFINDEX_MAX_ENTRY_NAME_LENTH);
// Those files are bogus because they are half filled, so we remove them
// No error handling since abort anyway
fclose(data_file);
fclose(index_file);
remove(data_filename);
remove(index_filename);
exit(EXIT_FAILURE);
}

entry[entry_length++] = input;

fasta_offset++;
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