Backport #7007 to 1.1.0

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7052)

diff --git a/apps/pkey.c b/apps/pkey.c
index ad1a3b10ebc6cf07f76819d34073c03503ed94c2..60e8581f445ba0b5d04f0aa6fd88c2bce2f6e0d1 100644 (file)
--- a/apps/pkey.c
+++ b/apps/pkey.c
@@ -141,24 +141,30 @@ int pkey_main(int argc, char **argv)
 
     if (!noout) {
         if (outformat == FORMAT_PEM) {
-            if (pubout)
-                PEM_write_bio_PUBKEY(out, pkey);
-            else {
+            if (pubout) {
+                if (!PEM_write_bio_PUBKEY(out, pkey))
+                    goto end;
+            } else {
                 assert(private);
-                if (traditional)
-                    PEM_write_bio_PrivateKey_traditional(out, pkey, cipher,
-                                                         NULL, 0, NULL,
-                                                         passout);
-                else
-                    PEM_write_bio_PrivateKey(out, pkey, cipher,
-                                             NULL, 0, NULL, passout);
+                if (traditional) {
+                    if (!PEM_write_bio_PrivateKey_traditional(out, pkey, cipher,
+                                                              NULL, 0, NULL,
+                                                              passout))
+                        goto end;
+                } else {
+                    if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
+                                                  NULL, 0, NULL, passout))
+                        goto end;
+                }
             }
         } else if (outformat == FORMAT_ASN1) {
-            if (pubout)
-                i2d_PUBKEY_bio(out, pkey);
-            else {
+            if (pubout) {
+                if (!i2d_PUBKEY_bio(out, pkey))
+                    goto end;
+            } else {
                 assert(private);
-                i2d_PrivateKey_bio(out, pkey);
+                if (!i2d_PrivateKey_bio(out, pkey))
+                    goto end;
             }
         } else {
             BIO_printf(bio_err, "Bad format specified for key\n");
@@ -168,17 +174,21 @@ int pkey_main(int argc, char **argv)
     }
 
     if (text) {
-        if (pubtext)
-            EVP_PKEY_print_public(out, pkey, 0, NULL);
-        else {
+        if (pubtext) {
+            if (EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
+                goto end;
+        } else {
             assert(private);
-            EVP_PKEY_print_private(out, pkey, 0, NULL);
+            if (EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)
+                goto end;
         }
     }
 
     ret = 0;
 
  end:
+    if (ret != 0)
+        ERR_print_errors(bio_err);
     EVP_PKEY_free(pkey);
     release_engine(e);
     BIO_free_all(out);