curl/src/tool_main.h
Viktor Szakats e5bb88b8f8
tool: use our own stderr variable
Earlier this year we changed our own stderr variable to use the standard
name `stderr` (to avoid bugs where someone is using `stderr` instead of
the curl-tool specific variable). This solution needed to override the
standard `stderr` symbol via the preprocessor. This in turn didn't play
well with unity builds and caused curl tool to crash or stay silent due
to an uninitialized stderr. This was a hard to find issue, fixed by
manually breaking out one file from the unity sources.

To avoid two these two tricks, this patch implements a different
solution: Restore using our own local variable for our stderr output and
leave `stderr` as-is. To avoid using `stderr` by mistake, add a
`checksrc` rule (based on logic we already used in lib for `strerror`)
that detects any `stderr` use in `src` and points to using our own
variable instead: `tool_stderr`.

Follow-up to 06133d3e9b
Follow-up to 2f17a9b654

Closes #11958
2023-09-28 10:50:56 +00:00

49 lines
1.6 KiB
C

#ifndef HEADER_CURL_TOOL_MAIN_H
#define HEADER_CURL_TOOL_MAIN_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "tool_setup.h"
#define DEFAULT_MAXREDIRS 50L
#define RETRY_SLEEP_DEFAULT 1000L /* ms */
#define RETRY_SLEEP_MAX 600000L /* ms == 10 minutes */
#define MAX_PARALLEL 300 /* conservative */
#define PARALLEL_DEFAULT 50
#ifndef STDIN_FILENO
# define STDIN_FILENO fileno(stdin)
#endif
#ifndef STDOUT_FILENO
# define STDOUT_FILENO fileno(stdout)
#endif
#ifndef STDERR_FILENO
# define STDERR_FILENO fileno(tool_stderr)
#endif
#endif /* HEADER_CURL_TOOL_MAIN_H */