DECLARE_TEST(md5, empty) {
md5_t* md5;
char md5str[32];
string_t digest;
md5 = md5_allocate();
md5_digest_finalize(md5);
digest = md5_get_digest(md5, md5str, sizeof(md5str));
EXPECT_STRINGEQ(digest, string_const(STRING_CONST("D41D8CD98F00B204E9800998ECF8427E")));
md5_initialize(md5);
md5_digest_finalize(md5);
digest = md5_get_digest(md5, md5str, sizeof(md5str));
EXPECT_STRINGEQ(digest, string_const(STRING_CONST("D41D8CD98F00B204E9800998ECF8427E")));
md5_deallocate(md5);
return 0;
}
DECLARE_TEST( md5, empty )
{
md5_t* md5;
char* md5str;
md5 = md5_allocate();
md5_digest_finalize( md5 );
md5str = md5_get_digest( md5 );
EXPECT_STREQ( md5str, "D41D8CD98F00B204E9800998ECF8427E" );
string_deallocate( md5str );
md5_initialize( md5 );
md5_digest_finalize( md5 );
md5str = md5_get_digest( md5 );
EXPECT_STREQ( md5str, "D41D8CD98F00B204E9800998ECF8427E" );
string_deallocate( md5str );
md5_deallocate( md5 );
return 0;
}
uint128_t
stream_md5(stream_t* stream) {
size_t cur, ic, lastc, num, limit;
md5_t md5;
uint128_t ret = uint128_null();
unsigned char buf[1025];
bool ignore_lf = false;
if (stream->vtable->md5)
return stream->vtable->md5(stream);
if (stream_is_sequential(stream) || !(stream->mode & STREAM_IN))
return ret;
cur = stream_tell(stream);
stream_seek(stream, 0, STREAM_SEEK_BEGIN);
md5_initialize(&md5);
limit = sizeof(buf)-1;
buf[limit] = 0;
while (!stream_eos(stream)) {
num = stream->vtable->read(stream, buf, limit);
if (!num)
continue;
if (stream->mode & STREAM_BINARY)
md5_digest(&md5, buf, (size_t)num);
else {
//If last buffer ended with CR, ignore a leading LF
lastc = 0;
if (ignore_lf && (buf[0] == '\n'))
lastc = 1;
ignore_lf = false;
//Digest one line at a time
//Treat all line endings (LF, CR, CR+LF) as Unix style LF. If file has mixed line endings
//(for example, one line ending in a single CR and next is empty and ending in a single LF),
//it will not work!
/*lint -e{850} */
for (ic = lastc; ic < num && ic < limit; ++ic) {
bool was_cr = (buf[ic] == '\r');
bool was_lf = (buf[ic] == '\n');
if (was_cr || was_lf) {
if (was_cr && (ic == limit-1))
ignore_lf = true; //Make next buffer ignore leading LF as it is part of CR+LF
buf[ic] = '\n';
md5_digest(&md5, buf + lastc, (size_t)((ic - lastc) + 1)); //Include the LF
if (was_cr && (buf[ic + 1] == '\n')) //Check for CR+LF
++ic;
lastc = ic + 1;
}
}
if (lastc < num)
md5_digest(&md5, buf + lastc, (size_t)(num - lastc));
}
}
stream_seek(stream, (ssize_t)cur, STREAM_SEEK_BEGIN);
md5_digest_finalize(&md5);
ret = md5_get_digest_raw(&md5);
md5_finalize(&md5);
return ret;
}
