diff options
Diffstat (limited to 'src/xz/util.h')
| -rw-r--r-- | src/xz/util.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/xz/util.h b/src/xz/util.h index 6d7e148..a2fdd05 100644 --- a/src/xz/util.h +++ b/src/xz/util.h @@ -1,3 +1,5 @@ +// SPDX-License-Identifier: 0BSD + /////////////////////////////////////////////////////////////////////////////// // /// \file util.h @@ -5,9 +7,6 @@ // // Author: Lasse Collin // -// This file has been put into the public domain. -// You can do whatever you want with this file. -// /////////////////////////////////////////////////////////////////////////////// /// \brief Safe malloc() that never returns NULL @@ -105,6 +104,20 @@ lzma_attribute((__format__(__printf__, 3, 4))) extern void my_snprintf(char **pos, size_t *left, const char *fmt, ...); +/// \brief Test if file descriptor is a terminal +/// +/// For POSIX systems, this is a simple wrapper around isatty(). However on +/// Windows, isatty() returns true for all character devices, not just +/// terminals. +/// +/// \param fd File descriptor to test +/// +/// \return bool: +/// - true if file descriptor is a terminal +/// - false otherwise +extern bool is_tty(int fd); + + /// \brief Test if stdin is a terminal /// /// If stdin is a terminal, an error message is printed and exit status set |