Add GitHub Actions CI with build and smoke test

.github/workflows/ci.yml

@@ -0,0 +1,27 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [g++, clang++]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y autoconf automake
+      - name: Build
+        run: |
+          ./autogen.sh
+          ./configure CXX=${{ matrix.compiler }}
+          make
+      - name: Smoke test
+        run: bash t/smoke.sh ./tthttpd

t/smoke.sh

@@ -0,0 +1,80 @@
+#!/bin/bash
+# smoke test for tthttpd: static files, directory listing, CGI, keep-alive.
+# usage: t/smoke.sh [path-to-tthttpd]
+set -u
+
+BIN=${1:-./tthttpd}
+PORT=${TTHTTPD_TEST_PORT:-18080}
+WORK=$(mktemp -d)
+trap 'rm -rf "$WORK"' EXIT
+
+DOCROOT="$WORK/docroot"
+mkdir -p "$DOCROOT/subdir"
+echo "hello world" > "$DOCROOT/index.html"
+echo "plain text file" > "$DOCROOT/subdir/file.txt"
+head -c 1000000 /dev/urandom > "$DOCROOT/big.bin"
+
+cat > "$DOCROOT/test.cgi" <<'EOF'
+#!/usr/bin/perl
+read(STDIN, my $body, $ENV{CONTENT_LENGTH} || 0);
+print "Content-Type: text/plain\r\n\r\n";
+print "method=$ENV{REQUEST_METHOD} qs=$ENV{QUERY_STRING} len=" . length($body) . "\n";
+EOF
+chmod +x "$DOCROOT/test.cgi"
+
+"$BIN" -p "$PORT" -d "$DOCROOT" &
+PID=$!
+trap 'kill -9 $PID 2>/dev/null; rm -rf "$WORK"' EXIT
+
+for i in $(seq 1 50); do
+  curl -s -o /dev/null "http://127.0.0.1:$PORT/index.html" && break
+  sleep 0.1
+done
+
+fail=0
+check() { # name expected actual
+  if [ "$2" != "$3" ]; then
+    echo "FAIL: $1: expected [$2] got [$3]"
+    fail=1
+  else
+    echo "ok: $1"
+  fi
+}
+
+check "static file" "hello world" "$(curl -s http://127.0.0.1:$PORT/index.html)"
+check "default page" "hello world" "$(curl -s http://127.0.0.1:$PORT/)"
+check "subdir file" "plain text file" "$(curl -s http://127.0.0.1:$PORT/subdir/file.txt)"
+check "404" "404" "$(curl -s -o /dev/null -w '%{http_code}' http://127.0.0.1:$PORT/nope.txt)"
+check "content type" "200 text/html;" "$(curl -s -o /dev/null -w '%{http_code} %{content_type}' http://127.0.0.1:$PORT/index.html)"
+check "dir listing" "2" "$(curl -s http://127.0.0.1:$PORT/subdir/ | grep -o 'file.txt' | wc -l | tr -d ' ')"
+check "head" "200" "$(curl -s -I -o /dev/null -w '%{http_code}' http://127.0.0.1:$PORT/index.html)"
+check "keepalive" "hello world hello world" "$(curl -s http://127.0.0.1:$PORT/index.html http://127.0.0.1:$PORT/index.html | tr '\n' ' ' | sed 's/ $//')"
+
+a=$(md5sum < "$DOCROOT/big.bin" | cut -d' ' -f1)
+b=$(curl -s http://127.0.0.1:$PORT/big.bin | md5sum | cut -d' ' -f1)
+check "1MB file" "$a" "$b"
+
+if [ -x /usr/bin/perl ]; then
+  check "cgi get" "method=GET qs=a=1 len=0" "$(curl -s "http://127.0.0.1:$PORT/test.cgi?a=1")"
+  for i in $(seq 1 10); do
+    check "cgi post ($i)" "method=POST qs= len=4" "$(curl -s -d 'x=42' http://127.0.0.1:$PORT/test.cgi)"
+  done
+  head -c 300000 /dev/zero | tr '\0' 'a' > "$WORK/bigbody"
+  check "cgi big post" "method=POST qs= len=300000" "$(curl -s --data-binary @"$WORK/bigbody" http://127.0.0.1:$PORT/test.cgi)"
+else
+  echo "skip: cgi tests (no /usr/bin/perl)"
+fi
+
+kill -TERM $PID
+for i in $(seq 1 50); do
+  kill -0 $PID 2>/dev/null || break
+  sleep 0.1
+done
+if kill -0 $PID 2>/dev/null; then
+  echo "FAIL: server did not exit on SIGTERM"
+  fail=1
+else
+  echo "ok: clean shutdown"
+fi
+
+exit $fail

utils.cxx

@@ -1078,7 +1078,7 @@ std::map<std::string, std::string> parse_querystring(const std::string& query_st
 #endif
 
 #ifndef _WIN32
-#define _rotl(x, y) ((x<<y)|(x>>(32-y)))
+#define _rotl(x, y) (((x)<<(y))|((x)>>(32-(y))))
 #endif
 
 #define F1(X, Y, Z) ((Z) ^ ((X) & ((Y) ^ (Z))))