Handle all cases of calloc returning NULL.

Signed-off-by: Tobias Heider <tobias.heider@canonical.com>

diff --git a/extra/gnutls_openssl.c b/extra/gnutls_openssl.c
index aa5a0e708b8fb4408e5d0cf0680e78afd4ab0a65..ba53733e1afaf90e31a938f66d295899ce5cee80 100644 (file)
--- a/extra/gnutls_openssl.c
+++ b/extra/gnutls_openssl.c
@@ -70,6 +70,9 @@ SSL_CTX *SSL_CTX_new(SSL_METHOD * method)
        SSL_CTX *ctx;
 
        ctx = (SSL_CTX *) calloc(1, sizeof(SSL_CTX));
+       if (!ctx)
+               return NULL;
+
        ctx->method = method;
 
        return ctx;
@@ -357,6 +360,9 @@ int SSL_connect(SSL * ssl)
        }
 
        store = (X509_STORE_CTX *) calloc(1, sizeof(X509_STORE_CTX));
+       if (!store)
+               return 0;
+
        store->ssl = ssl;
        store->cert_list = gnutls_certificate_get_peers(ssl->gnutls_state,
                                                        &cert_list_size);
@@ -406,6 +412,8 @@ int SSL_accept(SSL * ssl)
        }
 
        store = (X509_STORE_CTX *) calloc(1, sizeof(X509_STORE_CTX));
+       if (!store)
+               return 0;
        store->ssl = ssl;
        store->cert_list = gnutls_certificate_get_peers(ssl->gnutls_state,
                                                        &cert_list_size);
@@ -655,6 +663,8 @@ X509_NAME *X509_get_subject_name(const X509 * cert)
 {
        gnutls_x509_dn *dn;
        dn = (gnutls_x509_dn *) calloc(1, sizeof(gnutls_x509_dn));
+       if (!dn)
+               return (NULL);
        if (gnutls_x509_extract_certificate_dn(cert, dn) < 0) {
                free(dn);
                return NULL;
@@ -666,6 +676,8 @@ X509_NAME *X509_get_issuer_name(const X509 * cert)
 {
        gnutls_x509_dn *dn;
        dn = (gnutls_x509_dn *) calloc(1, sizeof(gnutls_x509_dn));
+       if (!dn)
+               return (NULL);
        if (gnutls_x509_extract_certificate_issuer_dn(cert, dn) < 0) {
                free(dn);
                return NULL;