Initial CI flow (#14)

* Initial CI flow

* Update false_positive file to current line numbers

.false_positive.txt

@@ -1,4 +1,6 @@
-*:duo.c:449
-*:duo.c:457
-*:duo.c:497
-*:duo.c:232
+// Suppress "Memory leak" error in `return (duo_auth_free(auth));`
+*:duo.c:479
+// Suppress "Memory leak" error in `return (duo_auth_free(auth));`
+*:duo.c:487
+// Suppress "Memory leak" error in `return (auth);`
+*:duo.c:527

.github/workflows/libduo-ci.yml

@@ -0,0 +1,26 @@
+name: libduo CI
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  ci:
+    name: libduo CI - test
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Install packages
+        run: sudo apt-get install -y gcc make libssl-dev cppcheck
+
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Build
+        run: ./configure && make
+
+      - name: Static analysis
+        run: cppcheck --quiet --force  --suppressions-list=.false_positive.txt --error-exitcode=1 .