===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/readpass.c,v
retrieving revision 1.28
retrieving revision 1.28.6.2
diff -u -r1.28 -r1.28.6.2
--- src/usr.bin/ssh/readpass.c	2003/01/23 13:50:27	1.28
+++ src/usr.bin/ssh/readpass.c	2005/03/10 17:15:04	1.28.6.2
@@ -23,12 +23,12 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: readpass.c,v 1.28 2003/01/23 13:50:27 markus Exp $");
+RCSID("$OpenBSD: readpass.c,v 1.28.6.2 2005/03/10 17:15:04 brad Exp $");
 
 #include <readpassphrase.h>
 
 #include "xmalloc.h"
-#include "readpass.h"
+#include "misc.h"
 #include "pathnames.h"
 #include "log.h"
 #include "ssh.h"
@@ -105,7 +105,9 @@
 	int rppflags, use_askpass = 0, ttyfd;
 
 	rppflags = (flags & RP_ECHO) ? RPP_ECHO_ON : RPP_ECHO_OFF;
-	if (flags & RP_ALLOW_STDIN) {
+	if (flags & RP_USE_ASKPASS)
+		use_askpass = 1;
+	else if (flags & RP_ALLOW_STDIN) {
 		if (!isatty(STDIN_FILENO))
 			use_askpass = 1;
 	} else {
@@ -117,6 +119,9 @@
 			use_askpass = 1;
 	}
 
+	if ((flags & RP_USE_ASKPASS) && getenv("DISPLAY") == NULL)
+		return (flags & RP_ALLOW_EOF) ? NULL : xstrdup("");
+
 	if (use_askpass && getenv("DISPLAY")) {
 		if (getenv(SSH_ASKPASS_ENV))
 			askpass = getenv(SSH_ASKPASS_ENV);
@@ -137,4 +142,30 @@
 	ret = xstrdup(buf);
 	memset(buf, 'x', sizeof buf);
 	return ret;
+}
+
+int
+ask_permission(const char *fmt, ...)
+{
+	va_list args;
+	char *p, prompt[1024];
+	int allowed = 0;
+
+	va_start(args, fmt);
+	vsnprintf(prompt, sizeof(prompt), fmt, args);
+	va_end(args);
+
+	p = read_passphrase(prompt, RP_USE_ASKPASS|RP_ALLOW_EOF);
+	if (p != NULL) {
+		/*
+		 * Accept empty responses and responses consisting
+		 * of the word "yes" as affirmative.
+		 */
+		if (*p == '\0' || *p == '\n' ||
+		    strcasecmp(p, "yes") == 0)
+			allowed = 1;
+		xfree(p);
+	}
+
+	return (allowed);
 }