tests: add some tracing tests

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/tests/vfork-0.c b/tests/vfork-0.c
new file mode 100644
index 0000000..94ef8fa
--- /dev/null
+++ b/tests/vfork-0.c
@@ -0,0 +1,34 @@
+#include "tests.h"
+
+int main(int argc, char *argv[])
+{
+	int ret = 0;
+	size_t i;
+
+	if (argc == 1) {
+		printf("Usage: %s <prog> [prog...]\n", argv[0]);
+		return 1;
+	}
+
+	for (i = 1; i < argc; ++i) {
+		switch (vfork()) {
+			case -1:
+				errp("vfork() failed");
+
+			case 0: {
+				char *new_argv[] = { argv[i], NULL };
+				_exit(execvp(argv[i], new_argv));
+			}
+
+			default: {
+				int status;
+				if (wait(&status) == -1)
+					ret |= 1;
+				else if (!WIFEXITED(status) || WEXITSTATUS(status))
+					ret |= 1;
+			}
+		}
+	}
+
+	return 0;
+}