$NetBSD: patch-ai,v 1.6 2025/10/26 17:28:47 vins Exp $

Replace gets(). Unsupported as of C11. 

--- src/mtest/mtest.c.orig	2011-07-23 00:20:17.000000000 +0000
+++ src/mtest/mtest.c
@@ -41,6 +41,11 @@
 
 /* Excellent reasons to hate ifdefs, and why my real code never uses them */
 
+#if defined(__NetBSD__)		/* NetBSD no longer defines unix. */
+# undef unix
+# define unix 1
+#endif
+
 #ifndef unix
 # define unix 0
 #endif
@@ -83,7 +88,20 @@ void display_body (BODY *body,char *pfx,
 void status (MAILSTREAM *stream);
 void prompt (char *msg,char *txt);
 void smtptest (long debug);
-
+
+/* fgets wrapper */
+
+char *mgets(char *buf, size_t sz) {
+    if (buf != NULL && sz > 0) {
+	if (fgets(buf, sz, stdin)) {
+            buf[strcspn(buf, "\n")] = '\0';
+	    return buf;
+	}
+	*buf = '\0';		/* clear buffer at end of file */
+    }
+    return NULL;
+}
+
 /* Main program - initialization */
 
 int main ()
@@ -594,8 +612,9 @@ void status (MAILSTREAM *stream)
 
 void prompt (char *msg,char *txt)
 {
+  size_t sz = sizeof txt;
   printf ("%s",msg);
-  gets (txt);
+  mgets (txt, sz);
 }
 
 /* Interfaces to C-client */
@@ -778,8 +797,9 @@ void smtptest (long debug)
   msg->subject = cpystr (line);
   puts (" Msg (end with a line with only a '.'):");
   body->type = TYPETEXT;
+  size_t sz = sizeof line;
   *text = '\0';
-  while (gets (line)) {
+  while (mgets (line, sz)) {
     if (line[0] == '.') {
       if (line[1] == '\0') break;
       else strcat (text,".");