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| author | Petr Uzel | 2012-05-15 10:49:03 +0200 |
|---|---|---|
| committer | Karel Zak | 2012-05-15 11:32:53 +0200 |
| commit | e872e32064b9ade685417f6a36af08dc2baa8694 (patch) | |
| tree | 1057c8638d5b6d9a94363c73aed5bbc7550b6641 /include/ttyutils.h | |
| parent | libuuid: move read_all to include/all-io.h (diff) | |
| download | kernel-qcow2-util-linux-e872e32064b9ade685417f6a36af08dc2baa8694.tar.gz kernel-qcow2-util-linux-e872e32064b9ade685417f6a36af08dc2baa8694.tar.xz kernel-qcow2-util-linux-e872e32064b9ade685417f6a36af08dc2baa8694.zip | |
include: move get_terminal_width() to ttyutils.h
Signed-off-by: Petr Uzel <petr.uzel@suse.cz>
Diffstat (limited to 'include/ttyutils.h')
| -rw-r--r-- | include/ttyutils.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/ttyutils.h b/include/ttyutils.h index f638aa0d9..15809e85a 100644 --- a/include/ttyutils.h +++ b/include/ttyutils.h @@ -1,7 +1,11 @@ #ifndef UTIL_LINUX_TTYUTILS_H #define UTIL_LINUX_TTYUTILS_H +#include <stdlib.h> #include <termios.h> +#ifdef HAVE_SYS_IOCTL_H +#include <sys/ioctl.h> +#endif #define UL_TTY_KEEPCFLAGS (1 << 1) #define UL_TTY_UTF8 (1 << 2) @@ -74,4 +78,29 @@ static inline void reset_virtual_console(struct termios *tp, int flags) tp->c_cc[VEOL2] = _POSIX_VDISABLE; } +static inline int get_terminal_width(void) +{ +#ifdef TIOCGSIZE + struct ttysize t_win; +#endif +#ifdef TIOCGWINSZ + struct winsize w_win; +#endif + const char *cp; + +#ifdef TIOCGSIZE + if (ioctl (0, TIOCGSIZE, &t_win) == 0) + return t_win.ts_cols; +#endif +#ifdef TIOCGWINSZ + if (ioctl (0, TIOCGWINSZ, &w_win) == 0) + return w_win.ws_col; +#endif + cp = getenv("COLUMNS"); + if (cp) + return strtol(cp, NULL, 10); + return 0; +} + + #endif /* UTIL_LINUX_TTYUTILS_H */ |