From ebece97cb0ed2ac335c5df6dd6f8d45172ef1b43 Mon Sep 17 00:00:00 2001
From: nsayer <nsayer@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Date: Wed, 16 May 2001 18:17:55 +0000
Subject: [PATCH] Catch malloc return failures. This should help avoid
 dereferencing NULL on low-memory situations.

Submitted by:	kris


git-svn-id: http://svn0.us-east.freebsd.org/base/head/contrib/telnet@76689 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
---
 libtelnet/sra.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libtelnet/sra.c b/libtelnet/sra.c
index 395f217..0d49453 100644
--- a/libtelnet/sra.c
+++ b/libtelnet/sra.c
@@ -93,6 +93,11 @@ int server;
 	xuser = (char *)malloc(512);
 	pass = (char *)malloc(256);
 	xpass = (char *)malloc(512);
+
+	if (user == NULL || xuser == NULL || pass == NULL || xpass ==
+	NULL)
+		return 0; /* malloc failed */
+
 	passwd_sent = 0;
 	
 	genkeys(pka,ska);
@@ -534,6 +539,9 @@ auth_conv(int num_msg, const struct pam_message **msg,
 	struct pam_response *reply =
 		malloc(sizeof(struct pam_response) * num_msg);
 
+	if (reply == NULL)
+		return PAM_BUF_ERR;
+
 	for (i = 0; i < num_msg; i++) {
 		switch (msg[i]->msg_style) {
 		case PAM_PROMPT_ECHO_ON:        /* assume want user name */