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READ THE CODE

Inside Bitcoin

The code behind the network, with room to understand it.

Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

bitcoin / bitcoinstable

Find a file

▤ build_linux_gui.sh

▤ build_linux.sh

▤ build_macos_gui.sh

▤ build_macos.sh

▤ build_win_gui.sh

▤ build_win.sh

▤ codesign.sh

▤ prelude.bash

▤ guix-attest

▤ guix-codesign

▤ guix-verify

▤ manifest_build.scm

▤ manifest_codesign.scm

▤ manifest_gui.scm

▤ security-check.py

▤ symbol-check.py

message-capture

verify-binaries

▤ filter-lcov.py

▤ .editorconfig

▤ .gitattributes

▤ .python-version

▤ .style.yapf

▤ CMakeLists.txtGuide

▤ CMakePresets.json

▤ CONTRIBUTING.md

▤ COPYINGGuide

▤ CTestConfig.cmake

▤ libbitcoinkernel.pc.in

▤ README.mdGuide

▤ SECURITY.md

bitcoin / contrib / guix / libexec / codesign.sh

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5,867 bytes · SHA-256 33356049bd63bf31… · View upstream ↗

1#!/usr/bin/env bash
2# Copyright (c) The Bitcoin Core developers
3# Distributed under the MIT software license, see the accompanying
4# file COPYING or https://opensource.org/license/mit.
5export LC_ALL=C.UTF-8
6set -o errexit -o pipefail
7
8# Environment variables for determinism
9export TAR_OPTIONS="--owner=0 --group=0 --numeric-owner --mtime='@${SOURCE_DATE_EPOCH}' --sort=name"
10export TZ=UTC
11
12# Although Guix _does_ set umask when building its own packages (in our case,
13# this is all packages in manifest.scm), it does not set it for `guix
14# shell`. It does make sense for at least `guix shell --container`
15# to set umask, so if that change gets merged upstream and we bump the
16# time-machine to a commit which includes the aforementioned change, we can
17# remove this line.
18#
19# This line should be placed before any commands which creates files.
20umask 0022
21
22if [ -n "$V" ]; then
23    # Print both unexpanded (-v) and expanded (-x) forms of commands as they are
24    # read from this file.
25    set -vx
26    # Set VERBOSE for CMake-based builds
27    export VERBOSE="$V"
28fi
29
30# Check that required environment variables are set
31cat << EOF
32Required environment variables as seen inside the container:
33    CODESIGNING_TARBALL: ${CODESIGNING_TARBALL:?not set}
34    DETACHED_SIGS_REPO: ${DETACHED_SIGS_REPO:?not set}
35    DIST_ARCHIVE_BASE: ${DIST_ARCHIVE_BASE:?not set}
36    DISTNAME: ${DISTNAME:?not set}
37    HOST: ${HOST:?not set}
38    SOURCE_DATE_EPOCH: ${SOURCE_DATE_EPOCH:?not set}
39    DISTSRC: ${DISTSRC:?not set}
40    OUTDIR: ${OUTDIR:?not set}
41EOF
42
43ACTUAL_OUTDIR="${OUTDIR}"
44OUTDIR="${DISTSRC}/output"
45
46git_head_version() {
47    local recent_tag
48    if recent_tag="$(git -C "$1" describe --exact-match HEAD 2> /dev/null)"; then
49        echo "${recent_tag#v}"
50    else
51        git -C "$1" rev-parse --short=12 HEAD
52    fi
53}
54
55CODESIGNATURE_GIT_ARCHIVE="${DIST_ARCHIVE_BASE}/${DISTNAME}-codesignatures-$(git_head_version "$DETACHED_SIGS_REPO").tar.gz"
56
57# Create the codesignature tarball if not already there
58if [ ! -e "$CODESIGNATURE_GIT_ARCHIVE" ]; then
59    mkdir -p "$(dirname "$CODESIGNATURE_GIT_ARCHIVE")"
60    git -C "$DETACHED_SIGS_REPO" archive --output="$CODESIGNATURE_GIT_ARCHIVE" HEAD
61fi
62
63mkdir -p "$OUTDIR"
64
65mkdir -p "$DISTSRC"
66(
67    cd "$DISTSRC"
68
69    tar -xf "$CODESIGNING_TARBALL"
70
71    mkdir -p codesignatures
72    tar -C codesignatures -xf "$CODESIGNATURE_GIT_ARCHIVE"
73
74    case "$HOST" in
75        *mingw*)
76            # Apply detached codesignatures
77            WORKDIR=".tmp"
78            mkdir -p ${WORKDIR}
79            cp -r --target-directory="${WORKDIR}" "unsigned/${DISTNAME}"
80            find "${WORKDIR}/${DISTNAME}" -name "*.exe" -type f -exec rm {} \;
81            find unsigned/ -name "*.exe" -type f | while read -r bin
82            do
83                bin_base="$(realpath --relative-to=unsigned/ "${bin}")"
84                mkdir -p "${WORKDIR}/$(dirname "${bin_base}")"
85                osslsigncode attach-signature \
86                                 -in "${bin}" \
87                                 -out "${WORKDIR}/${bin_base/-unsigned}" \
88                                 -sigin codesignatures/win/"${bin_base}".pem
89                osslsigncode verify \
90                                 -CAfile "$GUIX_ENVIRONMENT/etc/ssl/certs/ca-certificates.crt" \
91                                 -TSA-CAfile "$GUIX_ENVIRONMENT/etc/ssl/certs/ca-certificates.crt" \
92                                 -ignore-crl \
93                                 -ignore-cdp \
94                                 -in "${WORKDIR}/${bin_base/-unsigned}"
95            done
96
97            # Move installer to outdir
98            cd "${WORKDIR}"
99            find . -name "*setup.exe" -print0 \
100                | xargs -0r mv --target-directory="${OUTDIR}"
101
102            # Make .zip from binaries
103            find "${DISTNAME}" -print0 \
104                | xargs -0r touch --no-dereference --date="@${SOURCE_DATE_EPOCH}"
105            find "${DISTNAME}" \
106                | sort \
107                | zip -X@ "${OUTDIR}/${DISTNAME}-${HOST//x86_64-w64-mingw32/win64}.zip" \
108                || ( rm -f "${OUTDIR}/${DISTNAME}-${HOST//x86_64-w64-mingw32/win64}.zip" && exit 1 )
109            ;;
110        *darwin*)
111            case "$HOST" in
112                arm64*) ARCH="arm64" ;;
113                x86_64*) ARCH="x86_64" ;;
114            esac
115
116            # Apply detached codesignatures (in-place)
117            signapple apply dist/Bitcoin-Qt.app codesignatures/osx/"${HOST}"/dist/Bitcoin-Qt.app
118            find "${DISTNAME}" \( -wholename "*/bin/*" -o -wholename "*/libexec/*" \) -type f | while read -r bin
119            do
120                signapple apply "${bin}" "codesignatures/osx/${HOST}/${bin}.${ARCH}sign"
121            done
122
123            # Make a .zip from dist/
124            cd dist/
125            find . -print0 \
126                | xargs -0r touch --no-dereference --date="@${SOURCE_DATE_EPOCH}"
127            find . | sort \
128                | zip -X@ "${OUTDIR}/${DISTNAME}-${HOST}.zip"
129            cd ..
130
131            # Make a .tar.gz from bins
132            find "${DISTNAME}" -print0 \
133                | sort --zero-terminated \
134                | tar --create --no-recursion --mode='u+rw,go+r-w,a+X' --null --files-from=- \
135                | gzip -9n > "${OUTDIR}/${DISTNAME}-${HOST}.tar.gz" \
136                || ( rm -f "${OUTDIR}/${DISTNAME}-${HOST}.tar.gz" && exit 1 )
137            ;;
138        *)
139            exit 1
140            ;;
141    esac
142)  # $DISTSRC
143
144rm -rf "$ACTUAL_OUTDIR"
145mv --no-target-directory "$OUTDIR" "$ACTUAL_OUTDIR" \
146    || ( rm -rf "$ACTUAL_OUTDIR" && exit 1 )
147
148(
149    tmp="$(mktemp)"
150    cd /outdir-base
151    {
152        echo "$CODESIGNING_TARBALL"
153        echo "$CODESIGNATURE_GIT_ARCHIVE"
154        find "$ACTUAL_OUTDIR" -type f
155    } | xargs realpath --relative-base="$PWD" \
156        | xargs sha256sum \
157        | sort -k2 \
158        > "$tmp";
159    mv "$tmp" "$ACTUAL_OUTDIR"/SHA256SUMS.part
160)
161

A READING COMPANION

Source available. Guide coming next.

This file is included in the stable source snapshot. A file-specific guide has not been published yet.

440 guided files · 2,580 pending. Guides cover key sections, not every line.

cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

Code page 1

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/wallet/fees.cpp

src/wallet/load.cpp

src/txmempool.cpp

src/node/miner.cpp

src/chainparams.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/crypto/sha256.cpp

src/serialize.h

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/arith_uint256.h

src/blockencodings.h

src/blockfilter.h

src/crypto/siphash.h

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/compressor.h

src/compressor.cpp

src/flatfile.cpp

src/dbwrapper.h

src/util/chaintype.h

src/util/chaintype.cpp

src/scheduler.h

src/scheduler.cpp

src/checkqueue.h

src/threadsafety.h

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/blockfilter.cpp

src/merkleblock.cpp

src/merkleblock.h

src/addrman.cpp

src/netgroup.cpp

src/net_permissions.cpp

src/netbase.cpp

src/torcontrol.cpp

src/net_types.h

src/net_types.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/server.cpp

src/rpc/mempool.cpp

src/rpc/mining.cpp

src/rpc/net.cpp

src/rpc/node.cpp

src/rpc/blockchain.h

src/rpc/client.h

src/rpc/mempool.h

src/rpc/mining.h

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/abort.cpp

src/node/abort.h

src/node/caches.cpp

src/node/caches.h

src/kernel/caches.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/util/rbf.cpp

src/util/thread.h

src/common/netif.h

src/common/url.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/util/thread.cpp

src/kernel/types.h

src/interfaces/rpc.h

src/util/fees.cpp

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/attributes.h

src/chainparams.h

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/compat/cpuid.h

src/compat/endian.h

src/compat/stdin.cpp

src/compat/stdin.h

src/core_memusage.h

src/crypto/common.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/indirectmap.h

src/init/basic.cpp

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/logging/categories.h

src/logging/timer.h

src/net_permissions.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/node/warnings.h

src/outputtype.cpp

src/outputtype.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/primitives/block.cpp

src/randomenv.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/uint256.cpp

src/util/bip32.cpp

src/util/fees.h

src/util/fs.cpp

src/util/result.h

src/util/string.cpp

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

Independent explanations by MyBitcoinExplorer. Not affiliated with or endorsed by Bitcoin Core. Guides are educational and do not replace the source or its tests.

Bitcoin Core source © its contributors, distributed under the MIT license. Original notices and bundled third-party licenses are retained in the source tree.