Fix coverity warnings (#555)

IB-7552

Signed-off-by: Raul Metsma <[email protected]>

Author: metsma

.github/workflows/build.yml

@@ -82,7 +82,7 @@ jobs:
     steps:
     - name: Install Deps
       run: |
-        dnf install -y \
+        dnf install -y --setopt=install_weak_deps=False \
           git gcc-c++ cmake rpm-build xml-security-c-devel zlib-devel vim-common doxygen boost-test swig python3-devel java-1.8.0-openjdk-devel \
           https://www.codesynthesis.com/download/xsd/4.0/linux-gnu/x86_64/xsd-4.0.0-1.x86_64.rpm
     - name: Checkout
@@ -105,7 +105,7 @@ jobs:
     container: ${{ matrix.container }}
     strategy:
       matrix:
-        container: ['ubuntu:20.04', 'ubuntu:22.04', 'ubuntu:23.04']
+        container: ['ubuntu:20.04', 'ubuntu:22.04', 'ubuntu:23.04', 'ubuntu:23.10']
     env:
       DEBIAN_FRONTEND: noninteractive
       DEBFULLNAME: github-actions

cmake

@@ -51,18 +51,20 @@ Digest::~Digest() = default;
 
 vector<unsigned char> Digest::addDigestInfo(vector<unsigned char> digest, string_view uri)
 {
-    vector<unsigned char> oid;
     switch(toMethod(uri))
     {
-    case NID_sha1: oid = {0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x05, 0x00, 0x04, 0x14}; break;
-    case NID_sha224: oid = {0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, 0x1c}; break;
-    case NID_sha256: oid = {0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20}; break;
-    case NID_sha384: oid = {0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30}; break;
-    case NID_sha512: oid = {0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40}; break;
+    case NID_sha1: digest.insert(digest.cbegin(),
+        {0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x05, 0x00, 0x04, 0x14}); break;
+    case NID_sha224: digest.insert(digest.cbegin(),
+        {0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, 0x1c}); break;
+    case NID_sha256: digest.insert(digest.cbegin(),
+        {0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20}); break;
+    case NID_sha384: digest.insert(digest.begin(),
+        {0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30}); break;
+    case NID_sha512: digest.insert(digest.cbegin(),
+        {0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40}); break;
     default: break;
     }
-    if(!oid.empty())
-        digest.insert(digest.begin(), oid.begin(), oid.end());
     return digest;
 }
 
@@ -74,7 +76,7 @@ vector<unsigned char> Digest::digestInfoDigest(const std::vector<unsigned char>
         return {};
     const ASN1_OCTET_STRING *value {};
     X509_SIG_get0(sig.get(), nullptr, &value);
-    return { value->data, value->data + value->length };
+    return { value->data, std::next(value->data, value->length) };
 }
 
 string Digest::digestInfoUri(const std::vector<unsigned char> &digest)
@@ -141,7 +143,7 @@ int Digest::toMethod(string_view uri)
     if(uri == URI_SHA3_384 || uri == URI_RSA_PSS_SHA3_384) return NID_sha3_384;
     if(uri == URI_SHA3_512 || uri == URI_RSA_PSS_SHA3_512) return NID_sha3_512;
 #endif
-    THROW("Digest method URI '%.*s' is not supported.", uri.size(), uri.data());
+    THROW("Digest method URI '%.*s' is not supported.", int(uri.size()), uri.data());
 }
 
 string Digest::toRsaUri(const string &uri)