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/***************************************************************************
* _ _ ____ _
* 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
*
***************************************************************************/
/* In this file, stdio.h's stderr macro is not overridden. */
#define CURL_DO_NOT_OVERRIDE_STDERR
#include "tool_setup.h"
#include "tool_stderr.h"
#include "tool_msgs.h"
#include "memdebug.h" /* keep this as LAST include */
/* In other tool files stderr is defined as tool_stderr by tool_setup.h */
FILE *tool_stderr;
void tool_init_stderr(void)
{
tool_stderr = stderr;
}
void tool_set_stderr_file(struct GlobalConfig *global, char *filename)
{
FILE *fp;
if(!filename)
return;
if(!strcmp(filename, "-")) {
tool_stderr = stdout;
return;
}
/* precheck that filename is accessible to lessen the chance that the
subsequent freopen will fail. */
fp = fopen(filename, FOPEN_WRITETEXT);
if(!fp) {
warnf(global, "Warning: Failed to open %s", filename);
return;
}
fclose(fp);
/* freopen the actual stderr (stdio.h stderr) instead of tool_stderr since
the latter may be set to stdout. */
fp = freopen(filename, FOPEN_WRITETEXT, stderr);
if(!fp) {
/* stderr may have been closed by freopen. there is nothing to be done. */
DEBUGASSERT(0);
return;
}
tool_stderr = stderr;
}
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