diff options
Diffstat (limited to 'src/xz/util.c')
| -rw-r--r-- | src/xz/util.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/src/xz/util.c b/src/xz/util.c index 6ab4c2d..0d339ae 100644 --- a/src/xz/util.c +++ b/src/xz/util.c @@ -1,3 +1,5 @@ +// SPDX-License-Identifier: 0BSD + /////////////////////////////////////////////////////////////////////////////// // /// \file util.c @@ -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. -// /////////////////////////////////////////////////////////////////////////////// #include "private.h" @@ -148,8 +147,8 @@ str_to_uint64(const char *name, const char *value, uint64_t min, uint64_t max) if (multiplier == 0) { message(V_ERROR, _("%s: Invalid multiplier suffix"), value - 1); - message_fatal(_("Valid suffixes are `KiB' (2^10), " - "`MiB' (2^20), and `GiB' (2^30).")); + message_fatal(_("Valid suffixes are 'KiB' (2^10), " + "'MiB' (2^20), and 'GiB' (2^30).")); } // Don't overflow here either. @@ -165,7 +164,7 @@ str_to_uint64(const char *name, const char *value, uint64_t min, uint64_t max) return result; error: - message_fatal(_("Value of the option `%s' must be in the range " + message_fatal(_("Value of the option '%s' must be in the range " "[%" PRIu64 ", %" PRIu64 "]"), name, min, max); } @@ -262,9 +261,30 @@ my_snprintf(char **pos, size_t *left, const char *fmt, ...) extern bool +is_tty(int fd) +{ +#if defined(_WIN32) && !defined(__CYGWIN__) + // There is no need to check if handle == INVALID_HANDLE_VALUE + // because it will return false anyway when used in GetConsoleMode(). + // The resulting HANDLE is owned by the file descriptor. + // The HANDLE must not be closed here. + intptr_t handle = _get_osfhandle(fd); + DWORD mode; + + // GetConsoleMode() is an easy way to tell if the HANDLE is a + // console or not. We do not care about the value of mode since we + // do not plan to use any further Windows console functions. + return GetConsoleMode((HANDLE)handle, &mode); +#else + return isatty(fd); +#endif +} + + +extern bool is_tty_stdin(void) { - const bool ret = isatty(STDIN_FILENO); + const bool ret = is_tty(STDIN_FILENO); if (ret) message_error(_("Compressed data cannot be read from " @@ -277,7 +297,7 @@ is_tty_stdin(void) extern bool is_tty_stdout(void) { - const bool ret = isatty(STDOUT_FILENO); + const bool ret = is_tty(STDOUT_FILENO); if (ret) message_error(_("Compressed data cannot be written to " |