1 files changed, 43 insertions, 0 deletions
diff --git a/src/grep/gnulib-tests/test-c-stack2.sh b/src/grep/gnulib-tests/test-c-stack2.sh
new file mode 100755
index 0000000..7f03593
--- /dev/null
+++ b/src/grep/gnulib-tests/test-c-stack2.sh
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+tmpfiles=""
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+tmpfiles="t-c-stack2.tmp"
+
+# Sanitize exit status within a subshell, since some shells fail to
+# redirect stderr on their message about death due to signal.
+(${CHECKER} ./test-c-stack${EXEEXT} 1; exit $?) 2> t-c-stack2.tmp
+
+case $? in
+  77) if grep 'stack overflow' t-c-stack2.tmp >/dev/null ; then
+        if test -z "$LIBSIGSEGV"; then
+          echo 'cannot tell stack overflow from crash; consider installing libsigsegv' >&2
+          exit 77
+        else
+          echo 'cannot tell stack overflow from crash, in spite of libsigsegv' >&2
+          exit 1
+        fi
+      else
+        cat t-c-stack2.tmp >&2
+        exit 77
+      fi
+      ;;
+  1)
+      # Dereferencing NULL exits the program with status 1,
+      # so this test doesn't check the c-stack testing harness like it should.
+      # https://lists.gnu.org/r/grep-devel/2020-09/msg00034.html
+      cat t-c-stack2.tmp >&2
+      echo 'skipping test (perhaps gcc -fsanitize=undefined is in use?)'
+      exit 77;;
+  0) (exit 1); exit 1 ;;
+esac
+if grep 'program error' t-c-stack2.tmp >/dev/null ; then
+  :
+else
+  (exit 1); exit 1
+fi
+
+rm -fr $tmpfiles
+
+exit 0