X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Fupap.c;h=7e5f0d56ecc37193c4efe3c3ed53c99aeeba55d3;hb=3f2fe49d822135c209e9896f666b748cf2234f2e;hp=0078adfeec17d981f51a16bb3f5cdfada9e292da;hpb=1e7bc3ea35208555bf233daacee9d85ded13f999;p=ppp.git

diff --git a/pppd/upap.c b/pppd/upap.c
index 0078adf..7e5f0d5 100644
--- a/pppd/upap.c
+++ b/pppd/upap.c
@@ -17,9 +17,7 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#ifndef lint
-static char rcsid[] = "$Id: upap.c,v 1.15 1999/03/16 22:54:43 paulus Exp $";
-#endif
+#define RCSID	"$Id: upap.c,v 1.23 1999/11/20 05:11:47 paulus Exp $"
 
 /*
  * TODO:
@@ -31,14 +29,18 @@ static char rcsid[] = "$Id: upap.c,v 1.15 1999/03/16 22:54:43 paulus Exp $";
 #include "pppd.h"
 #include "upap.h"
 
-static bool hide_password;
+static const char rcsid[] = RCSID;
+
+static bool hide_password = 1;
 
 /*
  * Command-line options.
  */
 static option_t pap_option_list[] = {
     { "hide-password", o_bool, &hide_password,
-      "Don't output passwords to log" },
+      "Don't output passwords to log", 1 },
+    { "show-password", o_bool, &hide_password,
+      "Show password string in debug log messages", 0 },
     { "pap-restart", o_int, &upap[0].us_timeouttime,
       "Set retransmit timeout for PAP" },
     { "pap-max-authreq", o_int, &upap[0].us_maxtransmits,
@@ -372,7 +374,7 @@ upap_rauthreq(u, inp, id, len)
     /*
      * Parse user/passwd.
      */
-    if (len < sizeof (u_char)) {
+    if (len < 1) {
 	UPAPDEBUG(("pap_rauth: rcvd short packet."));
 	return;
     }
@@ -395,8 +397,11 @@ upap_rauthreq(u, inp, id, len)
      * Check the username and password given.
      */
     retcode = check_passwd(u->us_unit, ruser, ruserlen, rpasswd,
-			   rpasswdlen, &msg, &msglen);
+			   rpasswdlen, &msg);
     BZERO(rpasswd, rpasswdlen);
+    msglen = strlen(msg);
+    if (msglen > 255)
+	msglen = 255;
 
     upap_sresp(u, retcode, id, msg, msglen);
 
@@ -432,18 +437,20 @@ upap_rauthack(u, inp, id, len)
     /*
      * Parse message.
      */
-    if (len < sizeof (u_char)) {
-	UPAPDEBUG(("pap_rauthack: rcvd short packet."));
-	return;
-    }
-    GETCHAR(msglen, inp);
-    len -= sizeof (u_char);
-    if (len < msglen) {
-	UPAPDEBUG(("pap_rauthack: rcvd short packet."));
-	return;
+    if (len < 1) {
+	UPAPDEBUG(("pap_rauthack: ignoring missing msg-length."));
+    } else {
+	GETCHAR(msglen, inp);
+	if (msglen > 0) {
+	    len -= sizeof (u_char);
+	    if (len < msglen) {
+		UPAPDEBUG(("pap_rauthack: rcvd short packet."));
+		return;
+	    }
+	    msg = (char *) inp;
+	    PRINTMSG(msg, msglen);
+	}
     }
-    msg = (char *) inp;
-    PRINTMSG(msg, msglen);
 
     u->us_clientstate = UPAPCS_OPEN;
 
@@ -470,18 +477,20 @@ upap_rauthnak(u, inp, id, len)
     /*
      * Parse message.
      */
-    if (len < sizeof (u_char)) {
-	UPAPDEBUG(("pap_rauthnak: rcvd short packet."));
-	return;
-    }
-    GETCHAR(msglen, inp);
-    len -= sizeof (u_char);
-    if (len < msglen) {
-	UPAPDEBUG(("pap_rauthnak: rcvd short packet."));
-	return;
+    if (len < 1) {
+	UPAPDEBUG(("pap_rauthnak: ignoring missing msg-length."));
+    } else {
+	GETCHAR(msglen, inp);
+	if (msglen > 0) {
+	    len -= sizeof (u_char);
+	    if (len < msglen) {
+		UPAPDEBUG(("pap_rauthnak: rcvd short packet."));
+		return;
+	    }
+	    msg = (char *) inp;
+	    PRINTMSG(msg, msglen);
+	}
     }
-    msg = (char *) inp;
-    PRINTMSG(msg, msglen);
 
     u->us_clientstate = UPAPCS_BADAUTH;