90 lines
2.7 KiB
C
90 lines
2.7 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"
|
|
#include "memdebug.h" /* keep this as LAST include */
|
|
|
|
#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 will return 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) && !defined(UNDER_CE)
|
|
{
|
|
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 will cause 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 */
|
|
}
|