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https://github.com/Mbed-TLS/mbedtls.git
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Merge pull request #10020 from bensze01/msvc-format-size-macros
Fix preprocessor guards for C99 format size specifiers
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commit
906d3cdff5
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ChangeLog.d/fix-msvc-version-guard-format-zu.txt
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ChangeLog.d/fix-msvc-version-guard-format-zu.txt
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@ -0,0 +1,5 @@
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Bugfix
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* Fix definition of MBEDTLS_PRINTF_SIZET to prevent runtime crashes that
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occurred whenever SSL debugging was enabled on a copy of Mbed TLS built
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with Visual Studio 2013 or MinGW.
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Fixes #10017.
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@ -108,16 +108,16 @@
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*
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* This module provides debugging functions.
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*/
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#if (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800)
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#if defined(__MINGW32__) || (defined(_MSC_VER) && _MSC_VER < 1900)
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#include <inttypes.h>
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#define MBEDTLS_PRINTF_SIZET PRIuPTR
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#define MBEDTLS_PRINTF_LONGLONG "I64d"
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#else \
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/* (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) */
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/* defined(__MINGW32__) || (defined(_MSC_VER) && _MSC_VER < 1900) */
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#define MBEDTLS_PRINTF_SIZET "zu"
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#define MBEDTLS_PRINTF_LONGLONG "lld"
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#endif \
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/* (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) */
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/* defined(__MINGW32__) || (defined(_MSC_VER) && _MSC_VER < 1900) */
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#if !defined(MBEDTLS_PRINTF_MS_TIME)
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#include <inttypes.h>
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@ -1,3 +1,12 @@
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printf "%" MBEDTLS_PRINTF_SIZET, 0
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printf_int_expr:PRINTF_SIZET:sizeof(size_t):0:"0"
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printf "%" MBEDTLS_PRINTF_LONGLONG, 0
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printf_int_expr:PRINTF_LONGLONG:sizeof(long long):0:"0"
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printf "%" MBEDTLS_PRINTF_MS_TIME, 0
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printf_int_expr:PRINTF_MS_TIME:sizeof(mbedtls_ms_time_t):0:"0"
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Debug print msg (threshold 1, level 0)
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debug_print_msg_threshold:1:0:"MyFile":999:"MyFile(0999)\: Text message, 2 == 2\n"
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@ -4,11 +4,34 @@
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#include "mbedtls/pk.h"
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#include <test/ssl_helpers.h>
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#if defined(_WIN32)
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# include <stdlib.h>
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# include <crtdbg.h>
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#endif
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// Dummy type for builds without MBEDTLS_HAVE_TIME
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#if !defined(MBEDTLS_HAVE_TIME)
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typedef int64_t mbedtls_ms_time_t;
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#endif
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typedef enum {
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PRINTF_SIZET,
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PRINTF_LONGLONG,
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PRINTF_MS_TIME,
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} printf_format_indicator_t;
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const char *const printf_formats[] = {
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[PRINTF_SIZET] = "%" MBEDTLS_PRINTF_SIZET,
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[PRINTF_LONGLONG] = "%" MBEDTLS_PRINTF_LONGLONG,
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[PRINTF_MS_TIME] = "%" MBEDTLS_PRINTF_MS_TIME,
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};
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struct buffer_data {
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char buf[2000];
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char *ptr;
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};
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#if defined(MBEDTLS_SSL_TLS_C)
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static void string_debug(void *data, int level, const char *file, int line, const char *str)
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{
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struct buffer_data *buffer = (struct buffer_data *) data;
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@ -44,14 +67,77 @@ static void string_debug(void *data, int level, const char *file, int line, cons
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buffer->ptr = p;
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}
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#endif /* MBEDTLS_SSL_TLS_C */
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#if defined(_WIN32)
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static void noop_invalid_parameter_handler(
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const wchar_t *expression,
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const wchar_t *function,
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const wchar_t *file,
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unsigned int line,
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uintptr_t pReserved)
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{
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(void) expression;
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(void) function;
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(void) file;
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(void) line;
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(void) pReserved;
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}
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#endif /* _WIN32 */
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_DEBUG_C:MBEDTLS_SSL_TLS_C
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* depends_on:MBEDTLS_DEBUG_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE */
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void printf_int_expr(int format_indicator, intmax_t sizeof_x, intmax_t x, char *result)
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{
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#if defined(_WIN32)
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/* Windows treats any invalid format specifiers passsed to the CRT as fatal assertion failures.
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Disable this behaviour temporarily, so the rest of the test cases can complete. */
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_invalid_parameter_handler saved_handler =
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_set_invalid_parameter_handler(noop_invalid_parameter_handler);
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// Disable assertion pop-up window in Debug builds
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int saved_report_mode = _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_REPORT_MODE);
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_CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);
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#endif
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const char *format = printf_formats[format_indicator];
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char *output = NULL;
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const size_t n = strlen(result);
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/* Nominal case: buffer just large enough */
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TEST_CALLOC(output, n + 1);
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if ((size_t) sizeof_x <= sizeof(int)) { // Any smaller integers would be promoted to an int due to calling a vararg function
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TEST_EQUAL(n, mbedtls_snprintf(output, n + 1, format, (int) x));
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} else if (sizeof_x == sizeof(long)) {
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TEST_EQUAL(n, mbedtls_snprintf(output, n + 1, format, (long) x));
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} else if (sizeof_x == sizeof(long long)) {
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TEST_EQUAL(n, mbedtls_snprintf(output, n + 1, format, (long long) x));
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} else {
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TEST_FAIL(
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"sizeof_x <= sizeof(int) || sizeof_x == sizeof(long) || sizeof_x == sizeof(long long)");
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}
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TEST_MEMORY_COMPARE(result, n + 1, output, n + 1);
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exit:
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mbedtls_free(output);
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output = NULL;
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#if defined(_WIN32)
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// Restore default Windows behaviour
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_set_invalid_parameter_handler(saved_handler);
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_CrtSetReportMode(_CRT_ASSERT, saved_report_mode);
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(void) saved_report_mode;
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#endif
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_SSL_TLS_C */
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void debug_print_msg_threshold(int threshold, int level, char *file,
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int line, char *result_str)
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{
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@ -89,7 +175,7 @@ exit:
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}
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/* END_CASE */
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/* BEGIN_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_SSL_TLS_C */
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void mbedtls_debug_print_ret(char *file, int line, char *text, int value,
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char *result_str)
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{
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@ -124,7 +210,7 @@ exit:
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}
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/* END_CASE */
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/* BEGIN_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_SSL_TLS_C */
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void mbedtls_debug_print_buf(char *file, int line, char *text,
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data_t *data, char *result_str)
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{
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@ -159,7 +245,7 @@ exit:
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:!MBEDTLS_X509_REMOVE_INFO */
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/* BEGIN_CASE depends_on:MBEDTLS_SSL_TLS_C:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:!MBEDTLS_X509_REMOVE_INFO */
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void mbedtls_debug_print_crt(char *crt_file, char *file, int line,
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char *prefix, char *result_str)
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{
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@ -199,7 +285,7 @@ exit:
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_BIGNUM_C */
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/* BEGIN_CASE depends_on:MBEDTLS_SSL_TLS_C:MBEDTLS_BIGNUM_C */
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void mbedtls_debug_print_mpi(char *value, char *file, int line,
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char *prefix, char *result_str)
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{
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@ -1 +1 @@
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Subproject commit 7d941e84a5b5c77f642186075ef45b3cc3214d57
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Subproject commit 399c5f9e1d71cb177eb0c16cb934755b409abe23
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