Fix SM-serialization testcase

`xmpp_run_once()` uses `FD_SET()` to determine which sockets to `select()`
on. The socket gets initialized to `INVALID_SOCKET = -1` inside
`xmpp_conn_new()` which leads to a buffer overflow once `FD_SET()` is
called.

This is only exposed when enabling a higher optimization level, which
was only done in the `release-test` CI job.

* Fix this testcase by initializing the socket to a possible value.
* Build the Valgrind CI jobs with `-O2`.
* Make the output of the `release-test` more verbose.

Signed-off-by: Steffen Jaeckel <s@jaeckel.eu>

.github/workflows/main.yml

@@ -14,8 +14,8 @@ jobs:
     strategy:
       matrix:
         valgrind:
-           - { configure: ''                  , make: 'check' }
-           - { configure: '--enable-valgrind' , make: 'check-valgrind'  }
+           - { configure: ''                  , cflags: '',    make: 'check' }
+           - { configure: '--enable-valgrind' , cflags: '-O2', make: 'check-valgrind'  }
         options:
            - { configure: ''                    }
            - { configure: '--without-libxml2'   }
@@ -35,7 +35,7 @@ jobs:
       - name: Build the library
         run: |
           ./bootstrap.sh
-          ./configure ${{ matrix.options.configure }} ${{ matrix.valgrind.configure }} CFLAGS="-Werror -g3"
+          ./configure ${{ matrix.options.configure }} ${{ matrix.valgrind.configure }} CFLAGS="-Werror -g3 ${{ matrix.valgrind.cflags }}"
           make -j$(nproc)
       - name: Run tests
         run: |
@@ -135,6 +135,11 @@ jobs:
         if: ${{ !failure() }}
         run: |
           cat testbuild.log
+      - name: Error logs
+        if: ${{ failure() }}
+        run: |
+          cat testbuild.log || true
+          cat testerr.log || true
 
   code-style:
     runs-on: ubuntu-20.04

.gitignore

@@ -46,6 +46,7 @@ examples/roster
 examples/uuid
 examples/vcard
 testbuild*.log
+testerr*.log
 test-release/
 test_stamp
 test-suite*.log

Makefile.am

@@ -333,6 +333,7 @@ dist-archives:
 
 test-release: dist
 	@touch testbuild-$(PACKAGE_VERSION).log && ln -sf testbuild-$(PACKAGE_VERSION).log testbuild.log
+	@touch testerr-$(PACKAGE_VERSION).log && ln -sf testerr-$(PACKAGE_VERSION).log testerr.log
 	@mkdir -p test-release && cp $(PACKAGE_TARNAME)-$(PACKAGE_VERSION).tar.* test-release && pushd test-release && \
 		tar xzf $(PACKAGE_TARNAME)-$(PACKAGE_VERSION).tar.gz  && pushd $(PACKAGE_TARNAME)-$(PACKAGE_VERSION) && ./testbuild.sh && popd && rm -rf $(PACKAGE_TARNAME)-$(PACKAGE_VERSION) && \
 		echo "Success" && popd

testbuild.sh

@@ -1,6 +1,7 @@
 #!/bin/sh
 
 logfile="../../testbuild.log"
+errfile="../../testerr.log"
 
 err_out() {
   tail $logfile
@@ -8,6 +9,6 @@ err_out() {
 }
 
 ./bootstrap.sh
-./configure >> $logfile || err_out
-make -j$(( `nproc` * 2 + 1 )) >> $logfile || err_out
-make check >> $logfile || err_out
+./configure >> $logfile 2>> $errfile || err_out
+make -j$(( `nproc` * 2 + 1 )) >> $logfile 2>> $errfile || err_out
+make check >> $logfile 2>> $errfile || err_out

tests/test_serialize_sm.c

@@ -147,6 +147,7 @@ int main()
     conn->intf = intf;
     state = conn->state;
     conn->state = XMPP_STATE_CONNECTED;
+    conn->sock = 123;
 
     xmpp_send_raw(conn, "foo", 3);
     ENSURE_EQ(xmpp_conn_send_queue_len(conn), 1);