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https://best.openssf.org/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C++.html as of 2023-11-29 [1]. Enable new recommended warnings (except `-Wsign-conversion`): - enable `-Wformat=2` for clang (in both cmake and autotools). - add `CURL_PRINTF()` internal attribute and mark functions accepting printf arguments with it. This is a copy of existing `CURL_TEMP_PRINTF()` but using `__printf__` to make it compatible with redefinting the `printf` symbol: https://gcc.gnu.org/onlinedocs/gcc-3.0.4/gcc_5.html#SEC94 - fix `CURL_PRINTF()` and existing `CURL_TEMP_PRINTF()` for mingw-w64 and enable it on this platform. - enable `-Wimplicit-fallthrough`. - enable `-Wtrampolines`. - add `-Wsign-conversion` commented with a FIXME. - cmake: enable `-pedantic-errors` the way we do it with autotools. Follow-up tod5c0351055#2747 - lib/curl_trc.h: use `CURL_FORMAT()`, this also fixes it to enable format checks. Previously it was always disabled due to the internal `printf` macro. Fix them: - fix bug where an `set_ipv6_v6only()` call was missed in builds with `--disable-verbose` / `CURL_DISABLE_VERBOSE_STRINGS=ON`. - add internal `FALLTHROUGH()` macro. - replace obsolete fall-through comments with `FALLTHROUGH()`. - fix fallthrough markups: Delete redundant ones (showing up as warnings in most cases). Add missing ones. Fix indentation. - silence `-Wformat-nonliteral` warnings with llvm/clang. - fix one `-Wformat-nonliteral` warning. - fix new `-Wformat` and `-Wformat-security` warnings. - fix `CURL_FORMAT_SOCKET_T` value for mingw-w64. Also move its definition to `lib/curl_setup.h` allowing use in `tests/server`. - lib: fix two wrongly passed string arguments in log outputs. Co-authored-by: Jay Satiro - fix new `-Wformat` warnings on mingw-w64. [1]56c0fde389/docs/Compiler-Hardening-Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.mdCloses #12489
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
#ifndef HEADER_CURL_SERVER_UTIL_H
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#define HEADER_CURL_SERVER_UTIL_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "server_setup.h"
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char *data_to_hex(char *data, size_t len);
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void logmsg(const char *msg, ...) CURL_PRINTF(1, 2);
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long timediff(struct timeval newer, struct timeval older);
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#define TEST_DATA_PATH "%s/data/test%ld"
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#define ALTTEST_DATA_PATH "%s/test%ld"
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#define SERVERLOGS_LOCKDIR "lock" /* within logdir */
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/* global variable, where to find the 'data' dir */
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extern const char *path;
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/* global variable, log file name */
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extern const char *serverlogfile;
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extern const char *cmdfile;
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#ifdef _WIN32
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#include <process.h>
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#include <fcntl.h>
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#define sleep(sec) Sleep ((sec)*1000)
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#undef perror
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#define perror(m) win32_perror(m)
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void win32_perror(const char *msg);
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void win32_init(void);
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void win32_cleanup(void);
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const char *sstrerror(int err);
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#else /* _WIN32 */
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#define sstrerror(e) strerror(e)
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#endif /* _WIN32 */
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/* fopens the test case file */
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FILE *test2fopen(long testno, const char *logdir);
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int wait_ms(int timeout_ms);
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curl_off_t our_getpid(void);
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int write_pidfile(const char *filename);
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int write_portfile(const char *filename, int port);
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void set_advisor_read_lock(const char *filename);
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void clear_advisor_read_lock(const char *filename);
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/* global variable which if set indicates that the program should finish */
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extern volatile int got_exit_signal;
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/* global variable which if set indicates the first signal handled */
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extern volatile int exit_signal;
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#ifdef _WIN32
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/* global event which if set indicates that the program should finish */
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extern HANDLE exit_event;
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#endif
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void install_signal_handlers(bool keep_sigalrm);
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void restore_signal_handlers(bool keep_sigalrm);
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#ifdef USE_UNIX_SOCKETS
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#include <curl/curl.h> /* for curl_socket_t */
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#ifdef HAVE_SYS_UN_H
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#include <sys/un.h> /* for sockaddr_un */
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#endif /* HAVE_SYS_UN_H */
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int bind_unix_socket(curl_socket_t sock, const char *unix_socket,
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struct sockaddr_un *sau);
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#endif /* USE_UNIX_SOCKETS */
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#endif /* HEADER_CURL_SERVER_UTIL_H */
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