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Timerix 2025-07-18 22:24:05 +03:00
commit a44810a181
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21
.gitignore vendored Normal file
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# build results
bin/
obj/
# IDE files
.vs/
.vshistory/
.editorconfig
*.user
*.vcxproj.filters
# other files
.old*/
old/
tmp/
temp/
*.tmp
*.temp
logs/
log/
*.log

6
.gitmodules vendored Normal file
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[submodule "dependencies/BearSSL"]
path = dependencies/BearSSL
url = https://www.bearssl.org/git/BearSSL
[submodule "dependencies/tlibc"]
path = dependencies/tlibc
url = https://timerix.ddns.net/git/timerix/tlibc.git

1
.vscode/.gitignore vendored Executable file
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settings.json

15
.vscode/c_cpp_properties.json vendored Executable file
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{
"configurations": [
{
"name": "all",
"defines": [],
"includePath": [
"dependencies",
"src",
"${default}"
],
"cStandard": "c99"
}
],
"version": 4
}

29
.vscode/launch.json vendored Normal file
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{
"version": "0.2.0",
"configurations": [
{
"name": "gdb_debug",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}/bin/tcp-chat",
"windows": { "program": "${workspaceFolder}/bin/tcp-chat.exe" },
"preLaunchTask": "build_exec_dbg",
"stopAtEntry": false,
"cwd": "${workspaceFolder}/bin",
"externalConsole": false,
"internalConsoleOptions": "neverOpen",
"MIMode": "gdb",
"miDebuggerPath": "gdb",
"setupCommands": [
{
"text": "-enable-pretty-printing",
"ignoreFailures": true
},
{
"text": "-gdb-set disassembly-flavor intel",
"ignoreFailures": true
}
]
}
]
}

31
.vscode/tasks.json vendored Normal file
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{
"version": "2.0.0",
"tasks": [
{
"label": "build_exec_dbg",
"detail": "build project with debug symbols",
"type": "cppbuild",
"command": "bash",
"args": [
"-c",
"cbuild build_exec_dbg"
],
"options": {
"cwd": "${workspaceFolder}"
},
"problemMatcher": ["$gcc"],
"group": {
"kind": "build"
},
"presentation": {
"echo": true,
"reveal": "always",
"focus": true,
"panel": "shared",
"showReuseMessage": false,
"clear": true
}
}
]
}

1
dependencies/BearSSL vendored Submodule

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Subproject commit 3c040368f6791553610e362401db1efff4b4c5b8

16
dependencies/bearssl.config vendored Normal file
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#!/usr/bin/env bash
DEP_WORKING_DIR="dependencies/BearSSL"
DEP_PRE_BUILD_COMMAND=""
DEP_POST_BUILD_COMMAND=""
projconfig_path="../bearssl.project.config"
if [[ "$TASK" = *_dbg ]]; then
dep_build_target="build_static_lib_dbg"
else
dep_build_target="build_static_lib"
fi
DEP_BUILD_COMMAND="cbuild -c $projconfig_path $dep_build_target"
DEP_CLEAN_COMMAND="cbuild -c $projconfig_path clean"
DEP_DYNAMIC_OUT_FILES=""
DEP_STATIC_OUT_FILES="bin/libbearssl.a"
DEP_OTHER_OUT_FILES=""
PRESERVE_OUT_DIRECTORY_STRUCTURE=false

191
dependencies/bearssl.project.config vendored Normal file
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#!/usr/bin/env bash
CBUILD_VERSION=2.2.3
PROJECT="bearssl"
CMP_C="gcc"
CMP_CPP="g++"
STD_C="c11"
STD_CPP="c++11"
WARN_C="-Wno-unknown-pragmas"
# WARN_CPP="-Wall -Wextra"
SRC_C=""
for d in codec int hash rand rsa symcipher; do
SRC_C+=" $(find src/$d -name '*.c')"
done
#SRC_CPP="$(find src -name '*.cpp')"
# Directory with dependency configs.
# See cbuild/example_dependency_configs
DEPENDENCY_CONFIGS_DIR='..'
# List of dependency config files in DEPENDENCY_CONFIGS_DIR separated by space.
ENABLED_DEPENDENCIES=''
# OBJDIR structure:
# ├── objects/ - Compiled object files. Cleans on each call of build task
# ├── static_libs/ - Symbolic links to static libraries used by linker. Cleans on each call of build task.
# ├── static_libs/ - Symbolic links to dynamic libraries used by linker. Cleans on each call of build task.
# └── profile/ - gcc *.gcda profiling info files
OBJDIR="obj"
OUTDIR="bin"
STATIC_LIB_FILE="lib$PROJECT.a"
INCLUDE="-I./src -I./inc"
# OS-specific options
case "$OS" in
WINDOWS)
EXEC_FILE="$PROJECT.exe"
SHARED_LIB_FILE="$PROJECT.dll"
LINKER_LIBS=""
;;
LINUX)
EXEC_FILE="$PROJECT"
SHARED_LIB_FILE="$PROJECT.so"
LINKER_LIBS=""
;;
*)
error "operating system $OS has no configuration variants"
;;
esac
# TASKS
case "$TASK" in
# creates executable using profiling info if it exists
build_exec)
# -flto applies more optimizations across object files
# -flto=auto is needed to multithreaded copilation
# -fuse-linker-plugin is required to use static libs with lto
# -fprofile-use enables compiler to use profiling info files to optimize executable
# -fprofile-prefix-path sets path where profiling info about objects are be saved
# -fdata-sections -ffunction-sections -Wl,--gc-sections removes unused code
C_ARGS="-O2 -flto=auto -fuse-linker-plugin -fprofile-use -fprofile-prefix-path=$(realpath $OBJDIR)/objects -fdata-sections -ffunction-sections -Wl,--gc-sections"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
POST_TASK_SCRIPT=
;;
# creates executable with debug info and no optimizations
build_exec_dbg)
C_ARGS="-O0 -g3"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
POST_TASK_SCRIPT=
;;
# creates shared library
build_shared_lib)
C_ARGS="-O2 -fpic -flto -shared"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS -Wl,-soname,$SHARED_LIB_FILE"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_shared_lib.sh
POST_TASK_SCRIPT=
;;
# creates shared library with debug symbols and no optimizations
build_shared_lib_dbg)
C_ARGS="-O0 -g3 -fpic -shared"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS -Wl,-soname,$SHARED_LIB_FILE"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_shared_lib.sh
POST_TASK_SCRIPT=
;;
# creates static library
build_static_lib)
C_ARGS="-O2 -fpic -fdata-sections -ffunction-sections"
CPP_ARGS="$C_ARGS"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_static_lib.sh
POST_TASK_SCRIPT=
;;
# creates static library with debug symbols and no optimizations
build_static_lib_dbg)
C_ARGS="-O0 -g3"
CPP_ARGS="$C_ARGS"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_static_lib.sh
POST_TASK_SCRIPT=
;;
# executes $EXEC_FILE
exec)
TASK_SCRIPT=cbuild/default_tasks/exec.sh
;;
# executes $EXEC_FILE with valgrind memory checker
valgrind)
VALGRIND_ARGS="-s --read-var-info=yes --track-origins=yes --fullpath-after=$(pwd)/ --leak-check=full --show-leak-kinds=all"
TASK_SCRIPT=cbuild/default_tasks/valgrind.sh
;;
# generates profiling info
profile)
OUTDIR="$OUTDIR/profile"
# -flto applies more optimizations across object files
# -flto=auto is needed to multithreaded copilation
# -fuse-linker-plugin is required to use static libs with lto
# -pg adds code to executable, that generates file containing function call info (gmon.out)
# -fprofile-generate generates executable with profiling code
# -fprofile-prefix-path sets path where profiling info about objects will be saved
C_ARGS="-O2 -flto=auto -fuse-linker-plugin -fprofile-generate -fprofile-prefix-path=$(realpath $OBJDIR)/objects"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
TASK_SCRIPT=cbuild/default_tasks/profile.sh
POST_TASK_SCRIPT=
;;
# compiles program with -pg and runs it with gprof
# uses gprof2dot python script to generate function call tree (pip install gprof2dot)
# requires graphviz (https://www.graphviz.org/download/source/)
gprof)
OUTDIR="$OUTDIR/gprof"
# -pg adds code to executable, that generates file containing function call info (gmon.out)
C_ARGS="-O2 -flto=auto -fuse-linker-plugin -pg"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
TASK_SCRIPT=cbuild/default_tasks/gprof.sh
POST_TASK_SCRIPT=
;;
# compiles program and runs it with callgrind (part of valgrind)
# uses gprof2dot python script to generate function call tree (pip install gprof2dot)
# requires graphviz (https://www.graphviz.org/download/source/)
# P.S. detailed results can be viewed in KCacheGrind
callgrind)
OUTDIR="$OUTDIR/callgrind"
# -pg adds code to executable, that generates file containing function call info (gmon.out)
C_ARGS="-O2 -flto=auto -fuse-linker-plugin"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
TASK_SCRIPT=cbuild/default_tasks/callgrind.sh
POST_TASK_SCRIPT=
;;
# compiles executable with sanitizers and executes it to find errors and warnings
sanitize)
OUTDIR="$OUTDIR/sanitize"
C_ARGS="-O0 -g3 -fsanitize=undefined,address"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
TASK_SCRIPT=cbuild/default_tasks/exec.sh
POST_TASK_SCRIPT=
;;
# rebuilds specified dependencies
# EXAMPLE: `cbuild rebuild_dependencies=libexample1,fonts`
# 'all' can be specified to rebuild all dependencies
rebuild_dependencies)
TASK_SCRIPT=cbuild/default_tasks/rebuild_dependencies.sh
;;
# deletes generated files
clean)
TASK_SCRIPT=cbuild/default_tasks/clean.sh
;;
# nothing to do
"" | no_task)
;;
# unknown task
*)
error "task <$PROJECT/$TASK> not found"
;;
esac

1
dependencies/tlibc vendored Submodule

@ -0,0 +1 @@
Subproject commit 921bada09a86f2364464f8ce9301048e5a8e5344

15
dependencies/tlibc.config vendored Normal file
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#!/usr/bin/env bash
DEP_WORKING_DIR="dependencies/tlibc"
DEP_PRE_BUILD_COMMAND=""
DEP_POST_BUILD_COMMAND=""
if [[ "$TASK" = *_dbg ]]; then
dep_build_target="build_static_lib_dbg"
else
dep_build_target="build_static_lib"
fi
DEP_BUILD_COMMAND="cbuild $dep_build_target"
DEP_CLEAN_COMMAND="cbuild clean"
DEP_DYNAMIC_OUT_FILES=""
DEP_STATIC_OUT_FILES="bin/tlibc.a"
DEP_OTHER_OUT_FILES=""
PRESERVE_OUT_DIRECTORY_STRUCTURE=false

189
project.config Normal file
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#!/usr/bin/env bash
CBUILD_VERSION=2.2.3
PROJECT="tcp-chat"
CMP_C="gcc"
CMP_CPP="g++"
STD_C="c99"
STD_CPP="c++11"
WARN_C="-Wall -Wextra -Wno-unused-parameter"
WARN_CPP="-Wall -Wextra -Wno-unused-parameter"
SRC_C="$(find src -name '*.c')"
#SRC_CPP="$(find src -name '*.cpp')"
# Directory with dependency configs.
# See cbuild/example_dependency_configs
DEPENDENCY_CONFIGS_DIR='dependencies'
# List of dependency config files in DEPENDENCY_CONFIGS_DIR separated by space.
ENABLED_DEPENDENCIES='tlibc bearssl'
# OBJDIR structure:
# ├── objects/ - Compiled object files. Cleans on each call of build task
# ├── static_libs/ - Symbolic links to static libraries used by linker. Cleans on each call of build task.
# ├── static_libs/ - Symbolic links to dynamic libraries used by linker. Cleans on each call of build task.
# └── profile/ - gcc *.gcda profiling info files
OBJDIR="obj"
OUTDIR="bin"
STATIC_LIB_FILE="lib$PROJECT.a"
INCLUDE="-I./src -I./dependencies"
# OS-specific options
case "$OS" in
WINDOWS)
EXEC_FILE="$PROJECT.exe"
SHARED_LIB_FILE="$PROJECT.dll"
INCLUDE="$INCLUDE "
LINKER_LIBS="-lpthread -lws2_32"
;;
LINUX)
EXEC_FILE="$PROJECT"
SHARED_LIB_FILE="$PROJECT.so"
INCLUDE="$INCLUDE "
LINKER_LIBS=""
;;
*)
error "operating system $OS has no configuration variants"
;;
esac
# TASKS
case "$TASK" in
# creates executable using profiling info if it exists
build_exec)
# -flto applies more optimizations across object files
# -flto=auto is needed to multithreaded copilation
# -fuse-linker-plugin is required to use static libs with lto
# -fprofile-use enables compiler to use profiling info files to optimize executable
# -fprofile-prefix-path sets path where profiling info about objects are be saved
# -fdata-sections -ffunction-sections -Wl,--gc-sections removes unused code
C_ARGS="-O2 -flto=auto -fuse-linker-plugin -fprofile-use -fprofile-prefix-path=$(realpath $OBJDIR)/objects -fdata-sections -ffunction-sections -Wl,--gc-sections"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
POST_TASK_SCRIPT=
;;
# creates executable with debug info and no optimizations
build_exec_dbg)
C_ARGS="-O0 -g3"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
POST_TASK_SCRIPT=
;;
# creates shared library
build_shared_lib)
C_ARGS="-O2 -fpic -flto -shared"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS -Wl,-soname,$SHARED_LIB_FILE"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_shared_lib.sh
POST_TASK_SCRIPT=
;;
# creates shared library with debug symbols and no optimizations
build_shared_lib_dbg)
C_ARGS="-O0 -g3 -fpic -shared"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS -Wl,-soname,$SHARED_LIB_FILE"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_shared_lib.sh
POST_TASK_SCRIPT=
;;
# creates static library
build_static_lib)
C_ARGS="-O2 -fpic -fdata-sections -ffunction-sections"
CPP_ARGS="$C_ARGS"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_static_lib.sh
POST_TASK_SCRIPT=
;;
# creates static library with debug symbols and no optimizations
build_static_lib_dbg)
C_ARGS="-O0 -g3"
CPP_ARGS="$C_ARGS"
PRE_TASK_SCRIPT=
TASK_SCRIPT=cbuild/default_tasks/build_static_lib.sh
POST_TASK_SCRIPT=
;;
# executes $EXEC_FILE
exec)
TASK_SCRIPT=cbuild/default_tasks/exec.sh
;;
# executes $EXEC_FILE with valgrind memory checker
valgrind)
VALGRIND_ARGS="-s --read-var-info=yes --track-origins=yes --fullpath-after=$(pwd)/ --leak-check=full --show-leak-kinds=all"
TASK_SCRIPT=cbuild/default_tasks/valgrind.sh
;;
# generates profiling info
profile)
OUTDIR="$OUTDIR/profile"
# -flto applies more optimizations across object files
# -flto=auto is needed to multithreaded copilation
# -fuse-linker-plugin is required to use static libs with lto
# -pg adds code to executable, that generates file containing function call info (gmon.out)
# -fprofile-generate generates executable with profiling code
# -fprofile-prefix-path sets path where profiling info about objects will be saved
C_ARGS="-O2 -flto=auto -fuse-linker-plugin -fprofile-generate -fprofile-prefix-path=$(realpath $OBJDIR)/objects"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
TASK_SCRIPT=cbuild/default_tasks/profile.sh
POST_TASK_SCRIPT=
;;
# compiles program with -pg and runs it with gprof
# uses gprof2dot python script to generate function call tree (pip install gprof2dot)
# requires graphviz (https://www.graphviz.org/download/source/)
gprof)
OUTDIR="$OUTDIR/gprof"
# -pg adds code to executable, that generates file containing function call info (gmon.out)
C_ARGS="-O2 -flto=auto -fuse-linker-plugin -pg"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
TASK_SCRIPT=cbuild/default_tasks/gprof.sh
POST_TASK_SCRIPT=
;;
# compiles program and runs it with callgrind (part of valgrind)
# uses gprof2dot python script to generate function call tree (pip install gprof2dot)
# requires graphviz (https://www.graphviz.org/download/source/)
# P.S. detailed results can be viewed in KCacheGrind
callgrind)
OUTDIR="$OUTDIR/callgrind"
# -pg adds code to executable, that generates file containing function call info (gmon.out)
C_ARGS="-O2 -flto=auto -fuse-linker-plugin"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
TASK_SCRIPT=cbuild/default_tasks/callgrind.sh
POST_TASK_SCRIPT=
;;
# compiles executable with sanitizers and executes it to find errors and warnings
sanitize)
OUTDIR="$OUTDIR/sanitize"
C_ARGS="-O0 -g3 -fsanitize=undefined,address"
CPP_ARGS="$C_ARGS"
LINKER_ARGS="$CPP_ARGS $LINKER_LIBS"
PRE_TASK_SCRIPT=cbuild/default_tasks/build_exec.sh
TASK_SCRIPT=cbuild/default_tasks/exec.sh
POST_TASK_SCRIPT=
;;
# rebuilds specified dependencies
# EXAMPLE: `cbuild rebuild_dependencies=libexample1,fonts`
# 'all' can be specified to rebuild all dependencies
rebuild_dependencies)
TASK_SCRIPT=cbuild/default_tasks/rebuild_dependencies.sh
;;
# deletes generated files
clean)
TASK_SCRIPT=cbuild/default_tasks/clean.sh
;;
# nothing to do
"" | no_task)
;;
# unknown task
*)
error "task <$PROJECT/$TASK> not found"
;;
esac

66
src/main.c Executable file
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#include <tlibc/include/std.h>
#include <BearSSL/inc/bearssl_block.h>
#include <BearSSL/inc/bearssl_hash.h>
#include <BearSSL/inc/bearssl_rand.h>
char *print_hex_memory(u8 *p, u32 len) {
char tmp[3];
u32 output_len = len*2+1;
char *output = (char*)malloc(output_len);
memset(output, 0, output_len);
for (u32 i=0; i < len; i++) {
sprintf(tmp, "%02x", p[i]);
strcat(output, tmp);
}
return output;
}
int main(){
const char key_raw[] = "abobus";
const u32 key_raw_len = ARRAY_SIZE(key_raw)-1;
const char data[] = "0123456789_hii_"; // must be multiple of 16
const u32 data_len = ARRAY_SIZE(data);
u8 hash_buffer[br_sha256_SIZE];
const u32 hash_buffer_len = ARRAY_SIZE(hash_buffer);
memset(hash_buffer, 0, hash_buffer_len);
memcpy(hash_buffer, key_raw, key_raw_len);
br_sha256_context sha256_ctx;
br_sha256_init(&sha256_ctx);
// hash multiple times
for(i32 i = 0; i < 8; i++){
br_sha256_update(&sha256_ctx, hash_buffer, hash_buffer_len);
br_sha256_out(&sha256_ctx, hash_buffer);
printf("hash(i=%i) %s\n", i, print_hex_memory(hash_buffer, hash_buffer_len));
}
u8 key_padded[32]; // must be 16 or 24 or 32
const u32 key_padded_len = ARRAY_SIZE(key_padded);
memset(key_padded, 0, key_padded_len);
memcpy(key_padded, hash_buffer, key_padded_len);
u8 buffer[512];
const u32 buffer_len = ARRAY_SIZE(buffer);
memset(buffer, 0, buffer_len);
memcpy(buffer, data, data_len);
br_aes_ct64_cbcenc_keys enc_ctx;
br_aes_ct64_cbcenc_init(&enc_ctx, key_padded, key_padded_len);
u8 iv[16];
memset(iv, 0, ARRAY_SIZE(iv));
br_aes_ct64_cbcenc_run(&enc_ctx, iv, buffer, buffer_len);
printf("data encrypted\n");
br_aes_ct64_cbcdec_keys dec_ctx;
br_aes_ct64_cbcdec_init(&dec_ctx, key_padded, key_padded_len);
memset(iv, 0, ARRAY_SIZE(iv));
br_aes_ct64_cbcdec_run(&dec_ctx, iv, buffer, buffer_len);
printf("data decrypted\n");
fwrite(buffer, 1, buffer_len, stdout);
return 0;
}