From 662a041dba78e488238947f05da4777575415d3a Mon Sep 17 00:00:00 2001
From: Brad Smith <brad@comstyle.com>
Date: Fri, 2 Sep 2022 23:52:34 -0400
Subject: [PATCH] Make use of termios on OpenBSD

---
 textio/textioInt.h |  2 +-
 textio/txInput.c   | 28 +++++++++++++++++++++++++++-
 utils/magsgtty.h   |  5 +++++
 3 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/textio/textioInt.h b/textio/textioInt.h
index 5f35ecee..41fbc16f 100644
--- a/textio/textioInt.h
+++ b/textio/textioInt.h
@@ -41,7 +41,7 @@ typedef struct {
 #define TX_CMD_PROMPT	":"
 
 /* all of the state associated with a tty terminal */
-#if !defined(SYSV) && !defined(CYGWIN)
+#if !defined(SYSV) && !defined(CYGWIN) && !defined(__OpenBSD__)
 typedef struct {
     struct sgttyb tx_i_sgtty;
     struct tchars tx_i_tchars;
diff --git a/textio/txInput.c b/textio/txInput.c
index c56060a1..6f23c685 100644
--- a/textio/txInput.c
+++ b/textio/txInput.c
@@ -1215,6 +1215,15 @@ txGetTermState(buf)
     ioctl( fileno( stdin ), TCGETA, buf);
 }
 
+#elif defined (__OpenBSD__)
+
+void
+txGetTermState(buf)
+    struct termios *buf;
+{
+    (void) tcgetattr(fileno(stdin), buf);
+}
+
 #else
 
 void
@@ -1247,12 +1256,16 @@ void
 txSetTermState(buf)
 #if defined(SYSV) || defined(CYGWIN)
     struct termio *buf;
+#elif defined(__OpenBSD__)
+    struct termios *buf;
 #else
     txTermState *buf;
 #endif /* SYSV */
 {
 #if defined(SYSV) || defined(CYGWIN)
     ioctl( fileno(stdin), TCSETAF, buf );
+#elif defined (__OpenBSD__)
+    (void) tcsetattr( fileno(stdin), TCSANOW, buf );
 #else
     /* set the current terminal characteristics */
     (void) ioctl(fileno(stdin), TIOCSETN, (char *) &(buf->tx_i_sgtty) );
@@ -1282,11 +1295,13 @@ void
 txInitTermRec(buf)
 #if defined(SYSV) || defined(CYGWIN)
     struct termio *buf;
+#elif defined(__OpenBSD__)
+    struct termios *buf;
 #else
     txTermState *buf;
 #endif /* SYSV */
 {
-#if defined(SYSV) || defined(CYGWIN)
+#if defined(SYSV) || defined(CYGWIN) || defined(__OpenBSD__)
     buf->c_lflag = ISIG;    /* raw: no echo and no processing, allow signals */
     buf->c_cc[ VMIN ] = 1;
     buf->c_cc[ VTIME ] = 0;
@@ -1303,6 +1318,8 @@ txInitTermRec(buf)
 
 #if defined(SYSV) || defined(CYGWIN)
 struct termio closeTermState;
+#elif defined(__OpenBSD__)
+struct termios closeTermState;
 #else
 static txTermState closeTermState;
 #endif /* SYSV */
@@ -1335,6 +1352,13 @@ txSaveTerm()
     TxEOFChar = closeTermState.c_cc[VEOF];
     TxInterruptChar = closeTermState.c_cc[VINTR];
     haveCloseState = TRUE;
+#elif defined(__OpenBSD__)
+    (void) tcgetattr( fileno( stdin ), &closeTermState);
+    txEraseChar = closeTermState.c_cc[VERASE];
+    txKillChar =  closeTermState.c_cc[VKILL];
+    TxEOFChar = closeTermState.c_cc[VEOF];
+    TxInterruptChar = closeTermState.c_cc[VINTR];
+    haveCloseState = TRUE;
 #else
     struct ltchars lt;
     txGetTermState(&closeTermState);
@@ -1371,6 +1395,8 @@ TxSetTerminal()
 {
 #if defined(SYSV) || defined(CYGWIN)
     struct termio buf;
+#elif defined(__OpenBSD__)
+    struct termios buf;
 #else
     txTermState buf;
 #endif /* SYSV */
diff --git a/utils/magsgtty.h b/utils/magsgtty.h
index 89d3ef85..4d261c7a 100644
--- a/utils/magsgtty.h
+++ b/utils/magsgtty.h
@@ -33,7 +33,12 @@
 # endif
 
 #include <sys/ioctl.h>
+
+#if defined(__OpenBSD__)
+#include <termios.h>
+#else
 #include <sys/ioctl_compat.h>
+#endif
 
 #else
 #include <termio.h>