/*
 * <termios.h> for the MontaukOS git port.
 *
 * compat/terminal.c uses tcgetattr/tcsetattr to turn off echo while reading a
 * passphrase, and to put the terminal in raw mode for single-keystroke reads
 * ("git add -p"). The MontaukOS terminal has no line discipline to configure:
 * the libc reads stdin through SYS_GETCHAR and does its own echoing.
 *
 * These calls therefore succeed and do nothing rather than failing, because
 * git treats a tcgetattr() failure as "not a terminal" and a tcsetattr()
 * failure as fatal in some paths. The visible consequence is that a typed
 * passphrase is echoed -- there is no credential helper in this port, so
 * nothing prompts for one yet.
 *
 * Implementation in montauk-compat.c.
 */
#ifndef _MONTAUK_GIT_TERMIOS_H_
#define _MONTAUK_GIT_TERMIOS_H_

#include <sys/types.h>

typedef unsigned int  tcflag_t;
typedef unsigned char cc_t;
typedef unsigned int  speed_t;

#define NCCS 32

struct termios {
	tcflag_t c_iflag;
	tcflag_t c_oflag;
	tcflag_t c_cflag;
	tcflag_t c_lflag;
	cc_t     c_line;
	cc_t     c_cc[NCCS];
	speed_t  c_ispeed;
	speed_t  c_ospeed;
};

/* Linux values, so code that masks bits it never applies still builds. */
#define ECHO   0000010
#define ECHONL 0000100
#define ICANON 0000002
#define ISIG   0000001
#define IEXTEN 0100000
#define IXON   0002000
#define ICRNL  0000400
#define OPOST  0000001

#define VMIN  6
#define VTIME 5

#define TCSANOW   0
#define TCSADRAIN 1
#define TCSAFLUSH 2

int tcgetattr(int fd, struct termios *t);
int tcsetattr(int fd, int actions, const struct termios *t);

#endif /* _MONTAUK_GIT_TERMIOS_H_ */