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‎CMakeLists.txt

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@@ -40,6 +40,7 @@ include(cmake/external_libs.cmake)
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add_subdirectory(tools)
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add_subdirectory(contrib)
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add_subdirectory(src)
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add_subdirectory(util)
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if (YDB_SDK_EXAMPLES)
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add_subdirectory(examples)

‎cmake/public_headers.txt

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util/datetime/base.h
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util/datetime/systime.h
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util/digest/multi.h
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util/digest/numeric.h
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util/digest/sequence.h
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util/generic/algorithm.h
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util/generic/array_size.h
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util/generic/bt_exception.h
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util/generic/cast.h
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util/generic/flags.h
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util/generic/function.h
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util/generic/fwd.h
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util/generic/is_in.h
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util/generic/iterator_range.h
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util/generic/noncopyable.h
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util/generic/ptr.h
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util/generic/refcount.h
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util/generic/singleton.h
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util/generic/size_literals.h
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util/generic/store_policy.h
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util/generic/string_hash.h
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util/generic/typelist.h
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util/generic/typetraits.h
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util/generic/utility.h
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util/generic/va_args.h
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util/generic/xrange.h
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util/generic/yexception.h
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util/generic/ylimits.h
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util/memory/alloc.h
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util/memory/blob.h
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util/memory/tempbuf.h
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util/network/address.h
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util/network/hostip.h
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util/network/init.h
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util/network/ip.h
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util/network/sock.h
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util/network/socket.h
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util/random/random.h
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util/stream/debug.h
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util/stream/fwd.h
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util/stream/input.h
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util/stream/mem.h
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util/stream/output.h
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util/stream/str.h
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util/stream/tempbuf.h
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util/stream/zerocopy_output.h
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util/stream/zerocopy.h
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util/string/ascii.h
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util/string/builder.h
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util/string/cast.h
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util/string/escape.h
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util/string/strip.h
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util/string/subst.h
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util/system/atexit.h
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util/system/backtrace.h
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util/system/byteorder.h
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util/system/compat.h
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util/system/compiler.h
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util/system/defaults.h
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util/system/error.h
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util/system/event.h
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util/system/fhandle.h
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util/system/file.h
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util/system/flock.h
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util/system/guard.h
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util/system/maxlen.h
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util/system/platform.h
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util/system/progname.h
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util/system/rwlock.h
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util/system/spin_wait.h
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util/system/spinlock.h
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util/system/src_location.h
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util/system/src_root.h
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util/system/sysstat.h
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util/system/type_name.h
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util/system/types.h
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util/system/unaligned_mem.h
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util/system/win_undef.h
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util/system/winint.h
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util/system/yassert.h
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util/thread/factory.h
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util/thread/pool.h
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util/str_stl.h
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util/ysaveload.h

‎contrib/libs/CMakeLists.txt

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add_subdirectory(libc_compat)
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add_subdirectory(lzmasdk)

‎contrib/libs/libc_compat/CMakeLists.txt

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add_library(contrib-libs-libc_compat)
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target_compile_options(contrib-libs-libc_compat PRIVATE
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$<IF:$<CXX_COMPILER_ID:MSVC>,,-Wno-everything>
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)
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target_include_directories(contrib-libs-libc_compat PUBLIC
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/include/readpassphrase
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/reallocarray
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/random
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)
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target_sources(contrib-libs-libc_compat PRIVATE
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/string.c
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/readpassphrase.c
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/explicit_bzero.c
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/memfd_create.c
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/strlcat.c
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/strlcpy.c
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/reallocarray/reallocarray.c
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/random/getrandom.c
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${YDB_SDK_SOURCE_DIR}/contrib/libs/libc_compat/random/getentropy.c
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)

‎contrib/libs/libc_compat/README.md

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This library implements a compatibility layer between various libc implementations.
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The rationale for the library implementation is described in https://st.yandex-team.ru/IGNIETFERRO-1439.
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The code is taken from multiple sources, thus both LICENSE() and VERSION() tags are not very representative.
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During development one can make use of the following mapping of `OS_SDK` into glibc version.
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| Ubuntu | glibc |
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| ------ | ----- |
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| 20.04 | 2.30 |
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| 18.04 | 2.27 |
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| 16.04 | 2.23 |
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| 14.04 | 2.18 |
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| 12.04 | 2.15 |
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| 10.04 | 2.11 |
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Use the following commands to update the table above:
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1. `ya make util -DOS_SDK=ubuntu-xx -G | grep OS_SDK_ROOT | head -n 1`
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2. `cd ~/.ya/tools/v4/$RESOURCE_ID`
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3. `readelf -V $(find . -name 'libc.so.6')`
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4. Take the latest version from `.gnu.version_d` section prior to `GLIBC_PRIVATE`

‎contrib/libs/libc_compat/explicit_bzero.c

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/*-------------------------------------------------------------------------
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*
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* explicit_bzero.c
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*
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* Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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*
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* IDENTIFICATION
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* src/port/explicit_bzero.c
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*
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*-------------------------------------------------------------------------
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*/
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#include <stddef.h>
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#include <string.h>
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#if defined(HAVE_MEMSET_S)
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void
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explicit_bzero(void *buf, size_t len)
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{
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(void) memset_s(buf, len, 0, len);
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}
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#elif defined(WIN32)
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#include <Windows.h>
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void
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explicit_bzero(void *buf, size_t len)
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{
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(void) SecureZeroMemory(buf, len);
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}
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#else
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/*
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* Indirect call through a volatile pointer to hopefully avoid dead-store
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* optimisation eliminating the call. (Idea taken from OpenSSH.) We can't
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* assume bzero() is present either, so for simplicity we define our own.
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*/
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static void
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bzero2(void *buf, size_t len)
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{
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memset(buf, 0, len);
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}
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static void (*volatile bzero_p) (void *, size_t) = bzero2;
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void
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explicit_bzero(void *buf, size_t len)
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{
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bzero_p(buf, len);
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}
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#endif

‎contrib/libs/libc_compat/getservbyname/getservbyname.c

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#include <netdb.h>
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struct servent *getservbyname(const char *name, const char *prots)
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{
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static struct servent se;
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static char *buf[2];
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struct servent *res;
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if (getservbyname_r(name, prots, &se, (void *)buf, sizeof buf, &res))
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return 0;
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return &se;
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}

‎contrib/libs/libc_compat/getservbyname/getservbyname_r.c

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#define _GNU_SOURCE
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <inttypes.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include "lookup.h"
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#define ALIGN (sizeof(struct { char a; char *b; }) - sizeof(char *))
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int getservbyname_r(const char *name, const char *prots,
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struct servent *se, char *buf, size_t buflen, struct servent **res)
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{
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struct service servs[MAXSERVS];
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int cnt, proto, align;
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*res = 0;
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/* Don't treat numeric port number strings as service records. */
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char *end = "";
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strtoul(name, &end, 10);
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if (!*end) return ENOENT;
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/* Align buffer */
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align = -(uintptr_t)buf & ALIGN-1;
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if (buflen < 2*sizeof(char *)+align)
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return ERANGE;
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buf += align;
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if (!prots) proto = 0;
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else if (!strcmp(prots, "tcp")) proto = IPPROTO_TCP;
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else if (!strcmp(prots, "udp")) proto = IPPROTO_UDP;
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else return EINVAL;
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cnt = __lookup_serv(servs, name, proto, 0, 0);
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if (cnt<0) switch (cnt) {
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case EAI_MEMORY:
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case EAI_SYSTEM:
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return ENOMEM;
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default:
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return ENOENT;
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}
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se->s_name = (char *)name;
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se->s_aliases = (void *)buf;
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se->s_aliases[0] = se->s_name;
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se->s_aliases[1] = 0;
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se->s_port = htons(servs[0].port);
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se->s_proto = servs[0].proto == IPPROTO_TCP ? "tcp" : "udp";
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*res = se;
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return 0;
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}

‎contrib/libs/libc_compat/getservbyname/lookup.h

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#ifndef LOOKUP_H
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#define LOOKUP_H
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#include <stdint.h>
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#include <stddef.h>
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#include <features.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#define hidden __attribute__((__visibility__("hidden")))
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struct aibuf {
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struct addrinfo ai;
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union sa {
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struct sockaddr_in sin;
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struct sockaddr_in6 sin6;
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} sa;
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volatile int lock[1];
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short slot, ref;
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};
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struct address {
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int family;
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unsigned scopeid;
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uint8_t addr[16];
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int sortkey;
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};
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struct service {
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uint16_t port;
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unsigned char proto, socktype;
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};
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#define MAXNS 3
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struct resolvconf {
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struct address ns[MAXNS];
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unsigned nns, attempts, ndots;
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unsigned timeout;
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};
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/* The limit of 48 results is a non-sharp bound on the number of addresses
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* that can fit in one 512-byte DNS packet full of v4 results and a second
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* packet full of v6 results. Due to headers, the actual limit is lower. */
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#define MAXADDRS 48
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#define MAXSERVS 2
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hidden int __lookup_serv(struct service buf[static MAXSERVS], const char *name, int proto, int socktype, int flags);
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hidden int __lookup_name(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family, int flags);
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hidden int __lookup_ipliteral(struct address buf[static 1], const char *name, int family);
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hidden int __get_resolv_conf(struct resolvconf *, char *, size_t);
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hidden int __res_msend_rc(int, const unsigned char *const *, const int *, unsigned char *const *, int *, int, const struct resolvconf *);
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hidden int __dns_parse(const unsigned char *, int, int (*)(void *, int, const void *, int, const void *), void *);
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#endif

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