curl/src/terminal.c
Viktor Szakats 435eabeac8
badwords: rework exceptions, fix many of them
Also:
- support per-directory and per-upper-directory whitelist entries.
- convert badlist input grep tweak into the above format.
  (except for 'And' which had just a few hits.)
- fix many code exceptions, but do not enforce.
  (there also remain about 350 'will' uses in lib)
- fix badwords in example code, drop exceptions.
- badwords-all: convert to Perl.
  To make it usable from CMake.
- FAQ: reword to not use 'will'. Drop exception.

Closes #20886
2026-03-12 01:01:16 +01:00

86 lines
2.6 KiB
C

/***************************************************************************
* _ _ ____ _
* 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"
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#include "terminal.h"
#ifdef HAVE_TERMIOS_H
# include <termios.h>
#elif defined(HAVE_TERMIO_H)
# include <termio.h>
#endif
/*
* get_terminal_columns() returns the number of columns in the current
* terminal. It returns 79 on failure. Also, the number can be big.
*/
unsigned int get_terminal_columns(void)
{
unsigned int width = 0;
char *colp = curl_getenv("COLUMNS");
if(colp) {
curl_off_t num;
const char *p = colp;
if(!curlx_str_number(&p, &num, 10000) && (num > 20))
width = (unsigned int)num;
curl_free(colp);
}
if(!width) {
int cols = 0;
#ifdef TIOCGSIZE
struct ttysize ts;
if(!ioctl(STDIN_FILENO, TIOCGSIZE, &ts))
cols = ts.ts_cols;
#elif defined(TIOCGWINSZ)
struct winsize ts;
if(!ioctl(STDIN_FILENO, TIOCGWINSZ, &ts))
cols = (int)ts.ws_col;
#elif defined(_WIN32) && !defined(CURL_WINDOWS_UWP)
{
HANDLE stderr_hnd = GetStdHandle(STD_ERROR_HANDLE);
CONSOLE_SCREEN_BUFFER_INFO console_info;
if((stderr_hnd != INVALID_HANDLE_VALUE) &&
GetConsoleScreenBufferInfo(stderr_hnd, &console_info)) {
/*
* Do not use +1 to get the true screen-width since writing a
* character at the right edge causes a line wrap.
*/
cols = (int)(console_info.srWindow.Right - console_info.srWindow.Left);
}
}
#endif /* TIOCGSIZE */
if(cols >= 0 && cols < 10000)
width = (unsigned int)cols;
}
if(!width)
width = 79;
return width; /* 79 for unknown, might also be tiny or enormous */
}