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Bravely replace ttyname with ttyname_r

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This is more thread safe. We'll see if any platforms don't have this.
This commit is contained in:
ridiculousfish 2022-06-19 16:00:05 -07:00
parent e98b7d1a56
commit e2e340823a
1 changed files with 4 additions and 4 deletions
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8
src/common.cpp
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@ -1939,14 +1939,14 @@ std::string get_path_to_tmp_dir() {
// bullet-proof and that's OK.
bool is_console_session() {
static const bool console_session = [] {
ASSERT_IS_MAIN_THREAD();
const char *tty_name = ttyname(0);
char tty_name[PATH_MAX];
if (ttyname_r(STDIN_FILENO, tty_name, sizeof tty_name) != 0) {
return false;
}
constexpr auto len = const_strlen("/dev/tty");
const char *TERM = getenv("TERM");
return
// Test that the tty matches /dev/(console|dcons|tty[uv\d])
tty_name &&
((strncmp(tty_name, "/dev/tty", len) == 0 &&
(tty_name[len] == 'u' || tty_name[len] == 'v' || isdigit(tty_name[len]))) ||
strcmp(tty_name, "/dev/dcons") == 0 || strcmp(tty_name, "/dev/console") == 0)