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@@ -0,0 +1,49 @@
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+import os
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+import time
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+
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+import infra.basetest
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+
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+
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+class TestNgrep(infra.basetest.BRTest):
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+ config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
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+ """
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+ BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
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+ BR2_PACKAGE_NETCAT=y
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+ BR2_PACKAGE_NGREP=y
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+ BR2_TARGET_ROOTFS_CPIO=y
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+ # BR2_TARGET_ROOTFS_TAR is not set
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+ """
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+
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+ def test_run(self):
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+ cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
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+ self.emulator.boot(arch="armv5",
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+ kernel="builtin",
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+ options=["-initrd", cpio_file])
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+ self.emulator.login()
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+
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+ port = 12345
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+ msg = 'Hello Buildroot'
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+
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+ # Check the program can execute.
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+ self.assertRunOk("ngrep -V")
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+
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+ # Start a netcat server in background accepting connections
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+ cmd = f"nc -l -p {port} >/dev/null </dev/null &"
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+ self.assertRunOk(cmd)
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+
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+ time.sleep(1)
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+
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+ # Start a netcat client in background, sending one message
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+ # every seconds
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+ cmd = "( while true ; do "
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+ cmd += f"echo '{msg}'; "
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+ cmd += "sleep 1 ; "
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+ cmd += "done) | "
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+ cmd += f"nc 127.0.0.1 {port} &"
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+ self.assertRunOk(cmd)
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+
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+ time.sleep(1)
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+
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+ # Capture 3 packets with the message.
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+ cmd = f"ngrep -n 3 '{msg}'"
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+ self.assertRunOk(cmd)
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