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39bf41f4eb
- Python static hello world now 1.8mb
- Python static fully loaded now 10mb
- Python HTTPS client now uses MbedTLS
- Python REPL now completes import stmts
- Increase stack size for Python for now
- Begin synthesizing posixpath and ntpath
- Restore Python \N{UNICODE NAME} support
- Restore Python NFKD symbol normalization
- Add optimized code path for Intel SHA-NI
- Get more Python unit tests passing faster
- Get Python help() pagination working on NT
- Python hashlib now supports MbedTLS PBKDF2
- Make memcpy/memmove/memcmp/bcmp/etc. faster
- Add Mersenne Twister and Vigna to LIBC_RAND
- Provide privileged __printf() for error code
- Fix zipos opendir() so that it reports ENOTDIR
- Add basic chmod() implementation for Windows NT
- Add Cosmo's best functions to Python cosmo module
- Pin function trace indent depth to that of caller
- Show memory diagram on invalid access in MODE=dbg
- Differentiate stack overflow on crash in MODE=dbg
- Add stb_truetype and tools for analyzing font files
- Upgrade to UNICODE 13 and reduce its binary footprint
- COMPILE.COM now logs resource usage of build commands
- Start implementing basic poll() support on bare metal
- Set getauxval(AT_EXECFN) to GetModuleFileName() on NT
- Add descriptions to strerror() in non-TINY build modes
- Add COUNTBRANCH() macro to help with micro-optimizations
- Make error / backtrace / asan / memory code more unbreakable
- Add fast perfect C implementation of μ-Law and a-Law audio codecs
- Make strtol() functions consistent with other libc implementations
- Improve Linenoise implementation (see also github.com/jart/bestline)
- COMPILE.COM now suppresses stdout/stderr of successful build commands
67 lines
3.2 KiB
C
67 lines
3.2 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/bits/bits.h"
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#include "libc/rand/rand.h"
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#include "libc/testlib/testlib.h"
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uint64_t counter(void) {
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static uint8_t t;
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return 0x0101010101010101ull * t++;
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}
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TEST(rngset, testZeroReseedInterval_doesntApplyPrng) {
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char buf[32];
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EXPECT_EQ(buf, rngset(buf, sizeof(buf), counter, 0));
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EXPECT_EQ(0x0000000000000000, READ64LE(buf + 0));
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EXPECT_EQ(0x0101010101010101, READ64LE(buf + 8));
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EXPECT_EQ(0x0202020202020202, READ64LE(buf + 16));
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EXPECT_EQ(0x0303030303030303, READ64LE(buf + 24));
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}
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uint64_t eleet(void) {
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return 0x31337;
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}
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TEST(rngset, testReseedIsNeg_usesInternalVignaPrng) {
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char buf[32];
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svigna(0x31337);
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EXPECT_EQ(buf, rngset(buf, sizeof(buf), eleet, -1));
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EXPECT_EQ(vigna(), READ64LE(buf + 0));
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EXPECT_EQ(vigna(), READ64LE(buf + 8));
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EXPECT_EQ(vigna(), READ64LE(buf + 16));
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EXPECT_EQ(vigna(), READ64LE(buf + 24));
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}
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TEST(rngset, testNullSeedFunction_reseedBecomesVignaSeed) {
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char buf[32];
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svigna(123);
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EXPECT_EQ(buf, rngset(buf, sizeof(buf), 0, 123));
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EXPECT_EQ(vigna(), READ64LE(buf + 0));
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EXPECT_EQ(vigna(), READ64LE(buf + 8));
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EXPECT_EQ(vigna(), READ64LE(buf + 16));
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EXPECT_EQ(vigna(), READ64LE(buf + 24));
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}
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TEST(rngset, testWeirdlyShaped_doesntCrash) {
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char buf[7];
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rngset(buf, sizeof(buf), 0, 0);
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rngset(buf, sizeof(buf), vigna, 0);
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rngset(buf, sizeof(buf), vigna, 9);
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rngset(buf, sizeof(buf), vigna, 8);
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}
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