first commit

ksh-xtitle.diff

@@ -0,0 +1,95 @@
+Index: bin/ksh/io.c
+===================================================================
+RCS file: /cvs/src/bin/ksh/io.c,v
+retrieving revision 1.38
+diff -u -p -u -p -r1.38 io.c
+--- bin/ksh/io.c	24 Jul 2019 14:33:16 -0000	1.38
++++ bin/ksh/io.c	28 Dec 2022 07:41:42 -0000
+@@ -149,6 +149,20 @@ shellf(const char *fmt, ...)
+ 	shf_flush(shl_out);
+ }
+ 
++/* printf to shl_out (stderr) without flush */
++void
++shellnof(const char *fmt, ...)
++{
++	va_list va;
++
++	if (!initio_done) /* shl_out may not be set up yet... */
++		return;
++	va_start(va, fmt);
++	shf_vfprintf(shl_out, fmt, va);
++	va_end(va);
++}
++
++
+ /* printf to shl_stdout (stdout) */
+ void
+ shprintf(const char *fmt, ...)
+Index: bin/ksh/lex.c
+===================================================================
+RCS file: /cvs/src/bin/ksh/lex.c,v
+retrieving revision 1.78
+diff -u -p -u -p -r1.78 lex.c
+--- bin/ksh/lex.c	15 Jan 2018 14:58:05 -0000	1.78
++++ bin/ksh/lex.c	28 Dec 2022 07:41:42 -0000
+@@ -1157,6 +1157,19 @@ getsc_line(Source *s)
+ 			s->line++;
+ 			histsave(s->line, s->str, 1);
+ 		}
++		/* Set xterm title */
++		char *d = str_val(global("DISPLAY"));
++		char str[41];
++		memset(str, '\0', 41);
++		for (int i=0; i<40; i++) {
++			str[i] = p[i];
++			if ( (str[i] > 0x7e) || (str[i] < 0x20)) {
++				str[i] = '\0';
++				break;
++			}
++		}
++		if(d[0])
++			shellf("%c]0;$ %s%c", '\033', str, '\007');
+ 	}
+ 	if (interactive)
+ 		set_prompt(PS2);
+Index: bin/ksh/main.c
+===================================================================
+RCS file: /cvs/src/bin/ksh/main.c,v
+retrieving revision 1.98
+diff -u -p -u -p -r1.98 main.c
+--- bin/ksh/main.c	28 Jun 2019 13:34:59 -0000	1.98
++++ bin/ksh/main.c	28 Dec 2022 07:41:43 -0000
+@@ -609,9 +609,16 @@ shell(Source *volatile s, volatile int t
+ 			j_notify();
+ 			mcheck();
+ 			set_prompt(PS1);
++			/* Reset xterm title */
++			char *d = str_val(global("DISPLAY"));
++			if(d[0] > 0) {
++				shellnof("%c]0;$ ksh (%s)%c",
++					'\033', current_wd, '\007');
++			}
+ 		}
+ 
+ 		t = compile(s);
++
+ 		if (t != NULL && t->type == TEOF) {
+ 			if (wastty && Flag(FIGNOREEOF) && --attempts > 0) {
+ 				shellf("Use `exit' to leave ksh\n");
+Index: bin/ksh/sh.h
+===================================================================
+RCS file: /cvs/src/bin/ksh/sh.h,v
+retrieving revision 1.76
+diff -u -p -u -p -r1.76 sh.h
+--- bin/ksh/sh.h	7 Jul 2020 10:33:58 -0000	1.76
++++ bin/ksh/sh.h	28 Dec 2022 07:41:43 -0000
+@@ -475,6 +475,8 @@ void	internal_warningf(const char *, ...
+ void	error_prefix(int);
+ void	shellf(const char *, ...)
+ 	    __attribute__((__format__ (printf, 1, 2)));
++void	shellnof(const char *, ...)
++	    __attribute__((__format__ (printf, 1, 2)));
+ void	shprintf(const char *, ...)
+ 	    __attribute__((__format__ (printf, 1, 2)));
+ #ifdef KSH_DEBUG