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self-tests: always work with copies of the self-test hash

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philsmd 2017-11-28 16:31:04 +01:00
parent 42d1db4294
commit c9b16d76e6
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1 changed files with 8 additions and 1 deletions
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9
src/hashes.c
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@ -1671,7 +1671,14 @@ int hashes_init_selftest (hashcat_ctx_t *hashcat_ctx)
}
}
parser_status = hashconfig->parse_func ((u8 *) hashconfig->st_hash, strlen (hashconfig->st_hash), &hash, hashconfig_st);
// Make sure that we do not modify constant data. Make a copy of the constant self-test hash
// Note: sometimes parse_func () modifies the data internally. We always need to use a copy of the original data
char *tmpdata = hcstrdup (hashconfig->st_hash);
parser_status = hashconfig->parse_func ((u8 *) tmpdata, strlen (hashconfig->st_hash), &hash, hashconfig_st);
hcfree (tmpdata);
hcfree (hashconfig_st);
}