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sudo_term_raw: change the isig argument into a flags field

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There are current two flags: SUDO_TERM_ISIG (enable terminal signals)
and SUDO_TERM_OFLAG (preserve output flags).
This commit is contained in:
Todd C. Miller
2023-07-14 13:12:51 -06:00
parent ff6ddff39b
commit 625653de08
3 changed files with 16 additions and 6 deletions
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16
lib/util/term.c
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@@ -178,22 +178,30 @@ sudo_term_noecho_v1(int fd)
}
/*
* Set terminal to raw mode with optional terminal signals.
* Set terminal to raw mode as modified by flags.
* Returns true on success or false on failure.
*/
bool
sudo_term_raw_v1(int fd, int isig)
sudo_term_raw_v1(int fd, unsigned int flags)
{
struct termios term;
tcflag_t oflag;
debug_decl(sudo_term_raw, SUDO_DEBUG_UTIL);
if (!changed && tcgetattr(fd, &oterm) != 0)
debug_return_bool(false);
(void) memcpy(&term, &oterm, sizeof(term));
/* Set terminal to raw mode but optionally enable terminal signals. */
/*
* Set terminal to raw mode but optionally enable terminal signals
* and/or preserve output flags.
*/
if (ISSET(flags, SUDO_TERM_OFLAG))
oflag = term.c_oflag;
cfmakeraw(&term);
if (isig)
if (ISSET(flags, SUDO_TERM_ISIG))
SET(term.c_lflag, ISIG);
if (ISSET(flags, SUDO_TERM_OFLAG))
term.c_oflag = oflag;
if (tcsetattr_nobg(fd, TCSASOFT|TCSADRAIN, &term) == 0) {
changed = 1;
debug_return_bool(true);