mirror of
https://github.com/transmission/transmission
synced 2024-12-27 18:18:10 +00:00
f6f7bf8227
On a way to factoring out OpenSSL support to a standalone file to ease
addition of other crypto libraries support in the future, move helpers
providing random numbers/data generation to crypto-utils.{c,h}. OpenSSL-
related functionality (generation of cryptographically strong random
data) is moved to crypto-utils-openssl.c.
Rename functions to follow currently accepted style:
* tr_cryptoRandBuf -> tr_rand_buffer
* tr_cryptoRandInt -> tr_rand_int
* tr_cryptoWeakRandInt -> tr_rand_int_weak
Fix rare case of invalid value being returned from tr_rand_int. Return
value for abs(INT_MIN) may be undefined and thus negative, and so
tr_rand_int will return negative value which is incorrect (out of
requested and expected range).
136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
/*
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* This file Copyright (C) 2010-2014 Mnemosyne LLC
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*
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* It may be used under the GNU GPL versions 2 or 3
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* or any future license endorsed by Mnemosyne LLC.
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*
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* $Id$
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*/
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#include <string.h> /* strlen () */
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#include "transmission.h"
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#include "crypto-utils.h"
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#include "bitfield.h"
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#include "utils.h" /* tr_free */
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#include "libtransmission-test.h"
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static int
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test_bitfield_count_range (void)
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{
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int i;
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int n;
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int begin;
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int end;
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int count1;
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int count2;
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const int bitCount = 100 + tr_rand_int_weak (1000);
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tr_bitfield bf;
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/* generate a random bitfield */
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tr_bitfieldConstruct (&bf, bitCount);
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for (i=0, n=tr_rand_int_weak (bitCount); i<n; ++i)
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tr_bitfieldAdd (&bf, tr_rand_int_weak (bitCount));
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begin = tr_rand_int_weak (bitCount);
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do
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end = tr_rand_int_weak (bitCount);
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while (end == begin);
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/* ensure end <= begin */
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if (end < begin)
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{
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const int tmp = begin;
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begin = end;
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end = tmp;
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}
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/* test the bitfield */
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count1 = 0;
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for (i=begin; i<end; ++i)
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if (tr_bitfieldHas (&bf, i))
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++count1;
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count2 = tr_bitfieldCountRange (&bf, begin, end);
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check (count1 == count2);
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/* cleanup */
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tr_bitfieldDestruct (&bf);
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return 0;
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}
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static int
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test_bitfields (void)
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{
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unsigned int i;
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unsigned int bitcount = 500;
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tr_bitfield field;
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tr_bitfieldConstruct (&field, bitcount);
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/* test tr_bitfieldAdd */
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for (i=0; i<bitcount; i++)
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if (! (i % 7))
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tr_bitfieldAdd (&field, i);
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for (i=0; i<bitcount; i++)
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check (tr_bitfieldHas (&field, i) == (! (i % 7)));
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/* test tr_bitfieldAddRange */
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tr_bitfieldAddRange (&field, 0, bitcount);
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for (i=0; i<bitcount; i++)
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check (tr_bitfieldHas (&field, i));
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/* test tr_bitfieldRemRange in the middle of a boundary */
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tr_bitfieldRemRange (&field, 4, 21);
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for (i=0; i<64; i++)
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check (tr_bitfieldHas (&field, i) == ((i < 4) || (i >= 21)));
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/* test tr_bitfieldRemRange on the boundaries */
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tr_bitfieldAddRange (&field, 0, 64);
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tr_bitfieldRemRange (&field, 8, 24);
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for (i=0; i<64; i++)
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check (tr_bitfieldHas (&field, i) == ((i < 8) || (i >= 24)));
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/* test tr_bitfieldRemRange when begin & end is on the same word */
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tr_bitfieldAddRange (&field, 0, 64);
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tr_bitfieldRemRange (&field, 4, 5);
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for (i=0; i<64; i++)
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check (tr_bitfieldHas (&field, i) == ((i < 4) || (i >= 5)));
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/* test tr_bitfieldAddRange */
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tr_bitfieldRemRange (&field, 0, 64);
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tr_bitfieldAddRange (&field, 4, 21);
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for (i=0; i<64; i++)
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check (tr_bitfieldHas (&field, i) == ((4 <= i) && (i < 21)));
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/* test tr_bitfieldAddRange on the boundaries */
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tr_bitfieldRemRange (&field, 0, 64);
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tr_bitfieldAddRange (&field, 8, 24);
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for (i=0; i<64; i++)
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check (tr_bitfieldHas (&field, i) == ((8 <= i) && (i < 24)));
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/* test tr_bitfieldAddRange when begin & end is on the same word */
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tr_bitfieldRemRange (&field, 0, 64);
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tr_bitfieldAddRange (&field, 4, 5);
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for (i=0; i<64; i++)
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check (tr_bitfieldHas (&field, i) == ((4 <= i) && (i < 5)));
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tr_bitfieldDestruct (&field);
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return 0;
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}
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int
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main (void)
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{
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int l;
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int ret;
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const testFunc tests[] = { test_bitfields };
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if ((ret = runTests (tests, NUM_TESTS (tests))))
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return ret;
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/* bitfield count range */
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for (l=0; l<10000; ++l)
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if ((ret = test_bitfield_count_range ()))
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return ret;
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return 0;
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}
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