From dfc7865bc18f00b165efaeaa441a9ad5de6ceeeb Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Wed, 15 Mar 2023 23:28:01 +0100
Subject: [PATCH 01/22] go.mod: Upgrade packages.

---
 go.mod |  6 +++---
 go.sum | 12 ++++++------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/go.mod b/go.mod
index 2479bd0..3598691 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 
 require (
 	github.com/google/uuid v1.3.0 // indirect
-	golang.org/x/net v0.5.0 // indirect
-	golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f // indirect
-	golang.org/x/sys v0.4.0 // indirect
+	golang.org/x/net v0.8.0 // indirect
+	golang.org/x/sync v0.1.0 // indirect
+	golang.org/x/sys v0.6.0 // indirect
 )
diff --git a/go.sum b/go.sum
index d532404..8b4cd58 100644
--- a/go.sum
+++ b/go.sum
@@ -4,9 +4,9 @@ github.com/pborman/getopt/v2 v2.1.0 h1:eNfR+r+dWLdWmV8g5OlpyrTYHkhVNxHBdN2cCrJmO
 github.com/pborman/getopt/v2 v2.1.0/go.mod h1:4NtW75ny4eBw9fO1bhtNdYTlZKYX5/tBLtsOpwKIKd0=
 github.com/prometheus-community/pro-bing v0.1.0 h1:zjzLGhfNPP0bP1OlzGB+SJcguOViw7df12LPg2vUJh8=
 github.com/prometheus-community/pro-bing v0.1.0/go.mod h1:BpWlHurD9flHtzq8wrh8QGWYz9ka9z9ZJAyOel8ej58=
-golang.org/x/net v0.5.0 h1:GyT4nK/YDHSqa1c4753ouYCDajOYKTja9Xb/OHtgvSw=
-golang.org/x/net v0.5.0/go.mod h1:DivGGAXEgPSlEBzxGzZI+ZLohi+xUj054jfeKui00ws=
-golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f h1:Ax0t5p6N38Ga0dThY21weqDEyz2oklo4IvDkpigvkD8=
-golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
-golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
+golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
+golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
+golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

From ede12055013c093906785dbe9bcf7f8d79df2c05 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Wed, 15 Mar 2023 23:30:49 +0100
Subject: [PATCH 02/22] main.go: defer cleanup functions in eventLoop()

---
 main.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index e347c43..270d47e 100644
--- a/main.go
+++ b/main.go
@@ -24,6 +24,8 @@ func printStats(pinger *probing.Pinger) {
 
 func eventLoop(pinger *probing.Pinger) {
 	ticker := time.NewTicker(time.Second * 4)
+	defer ticker.Stop()
+	defer pinger.Stop()
 
 	// Setup signals on term and interrupt.
 	sig := make(chan os.Signal, 1)
@@ -33,8 +35,6 @@ func eventLoop(pinger *probing.Pinger) {
 		select {
 		// Got signal. stop pinger and exit goroutine
 		case <-sig:
-			ticker.Stop()
-			pinger.Stop()
 			return
 		// Ticker ticks. print stats.
 		case <-ticker.C:

From e7c49dac1c2e1cb5304369f1150b0de1e929b3b4 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sat, 18 May 2024 17:33:55 +0200
Subject: [PATCH 03/22] Print signal when received

---
 main.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/main.go b/main.go
index 270d47e..29584b4 100644
--- a/main.go
+++ b/main.go
@@ -34,7 +34,8 @@ func eventLoop(pinger *probing.Pinger) {
 	for {
 		select {
 		// Got signal. stop pinger and exit goroutine
-		case <-sig:
+		case s := <-sig:
+			fmt.Printf("Recived signal: %s, exiting.", s)
 			return
 		// Ticker ticks. print stats.
 		case <-ticker.C:

From cef5f5daba5fb671f96e7c8c85aea022da0c5754 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sun, 25 May 2025 22:25:14 +0200
Subject: [PATCH 04/22] main.go: proper improt alias

---
 main.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.go b/main.go
index 29584b4..8a4980b 100644
--- a/main.go
+++ b/main.go
@@ -8,7 +8,7 @@ import (
 	"time"
 
 	"github.com/pborman/getopt/v2"
-	"github.com/prometheus-community/pro-bing"
+	probing "github.com/prometheus-community/pro-bing"
 )
 
 // printStats prints statistics from a ping.

From ab292886a85ddc67d06d15c87a5373ac3717c56b Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sun, 25 May 2025 22:26:12 +0200
Subject: [PATCH 05/22] main.go: add option to changes stats interval.

---
 main.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/main.go b/main.go
index 8a4980b..ead1aff 100644
--- a/main.go
+++ b/main.go
@@ -22,8 +22,7 @@ func printStats(pinger *probing.Pinger) {
 		stats.MinRtt, stats.AvgRtt, stats.MaxRtt, stats.StdDevRtt)
 }
 
-func eventLoop(pinger *probing.Pinger) {
-	ticker := time.NewTicker(time.Second * 4)
+func eventLoop(pinger *probing.Pinger, ticker *time.Ticker) {
 	defer ticker.Stop()
 	defer pinger.Stop()
 
@@ -52,6 +51,7 @@ func main() {
 	count := getopt.IntLong("count", 'c', 0, "Stop after this many packages has been sent (and received). If this option is not specified, pinger will operate until interrupted.")
 	timeout := getopt.DurationLong("timeout", 't', 0, "Exit the program after this time is reached, regardless of how many packets have been received.")
 	interval := getopt.DurationLong("interval", 'i', time.Second*2, "Wait time between each packet send")
+	statsInterval := getopt.DurationLong("stats-interval", 0, time.Second*4, "How often stats should be printed to the console.")
 	proto_udp := getopt.BoolLong("udp", 0, "Send UDP ping instead of a raw IMCP ping, IMCP required super-user privileges")
 	record_rtt := getopt.BoolLong("rtt", 0, "Keep a record of rtts of all received packets.")
 
@@ -85,7 +85,7 @@ func main() {
 	}
 
 	// Enter event loop in another goroutine.
-	go eventLoop(pinger)
+	go eventLoop(pinger, time.NewTicker(*statsInterval))
 
 	// Run pinger in main thread.
 	fmt.Println("PING", pinger.Addr())

From c010b082da4dd7d50f329223e4ea23b36ee61b66 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sun, 25 May 2025 22:28:47 +0200
Subject: [PATCH 06/22] Adding makefile

---
 Makefile | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 Makefile

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c01b168
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,5 @@
+
+GO=go
+
+pinger : main.go
+	$(GO) build -o $@ $^

From 74a3e98e5b1b69dad14bfbcd452f7f412c77f9ff Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sun, 25 May 2025 22:28:55 +0200
Subject: [PATCH 07/22] gitignore: ignore pinger binary

---
 .gitignore | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index adb36c8..f8b2950 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-*.exe
\ No newline at end of file
+pinger
+*.exe

From 7dac879682527a2d51df14213a07fd1c2af4671e Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Mon, 26 May 2025 19:42:51 +0200
Subject: [PATCH 08/22] adding .github/workflows/test.yml

---
 .github/workflows/test.yml | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 .github/workflows/test.yml

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..055d997
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,27 @@
+name: Test
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.20'
+
+    - name: Fmt
+      run: go fmt $(go list ./... | grep -v /vendor/)
+    - name: Vet
+      run: go vet $(go list ./... | grep -v /vendor/)
+    - name: Test
+      run: go test -race $(go list ./... | grep -v /vendor/)
+

From 771e1b994a7eb7d34520371d7e88ab89fc9f6dbf Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Mon, 26 May 2025 19:45:06 +0200
Subject: [PATCH 09/22] remove .gitlab-ci.yml

---
 .gitlab-ci.yml | 46 ----------------------------------------------
 1 file changed, 46 deletions(-)
 delete mode 100644 .gitlab-ci.yml

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
deleted file mode 100644
index 69fb79a..0000000
--- a/.gitlab-ci.yml
+++ /dev/null
@@ -1,46 +0,0 @@
-# This file is a template, and might need editing before it works on your project.
-# You can copy and paste this template into a new `.gitlab-ci.yml` file.
-# You should not add this template to an existing `.gitlab-ci.yml` file by using the `include:` keyword.
-#
-# To contribute improvements to CI/CD templates, please follow the Development guide at:
-# https://docs.gitlab.com/ee/development/cicd/templates.html
-# This specific template is located at:
-# https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Go.gitlab-ci.yml
-
-stages:
-  - test
-  - build
-  - release
-
-format:
-  image: golang:latest
-  stage: test
-  script:
-    - go fmt $(go list ./... | grep -v /vendor/)
-    - go vet $(go list ./... | grep -v /vendor/)
-    - go test -race $(go list ./... | grep -v /vendor/)
-
-compile:
-  image: golang:latest
-  stage: build
-  script:
-    - mkdir -p bin
-    - GOOS=windows GOARCH=386 go build -o bin/pinger-32.exe ./...
-    - GOOS=windows GOARCH=amd64 go build -o bin/pinger-x64.exe ./...
-    - GOOS=linux GOARCH=386 go build -o bin/pinger-linux-x86 ./...
-    - GOOS=linux GOARCH=amd64 go build -o bin/pinger-linux-x64 ./...
-  artifacts:
-    paths:
-      - bin
-    expire_in: 1 week
-
-upload:
-  stage: release
-  image: curlimages/curl:latest
-  rules:
-    - if: $CI_COMMIT_TAG
-  script:
-    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file bin/pinger-32.exe "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/generic/release/${CI_COMMIT_TAG}/pinger-32.exe"'
-    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file bin/pinger-x64.exe "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/generic/release/${CI_COMMIT_TAG}/pinger-x64.exe"'
-    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file bin/pinger-linux-x86 "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/generic/release/${CI_COMMIT_TAG}/pinger-linux-x86"'
-    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file bin/pinger-linux-x64 "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/generic/release/${CI_COMMIT_TAG}/pinger-linux-x64"'
\ No newline at end of file

From 4869175152e7364e572aa19cc43ee078a200a214 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Mon, 26 May 2025 19:53:33 +0200
Subject: [PATCH 10/22] adding .github/workflows/release.yml

---
 .github/workflows/release.yml | 38 +++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 .github/workflows/release.yml

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..5b255d1
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,38 @@
+name: Release
+permissions:
+  contents: write
+
+on:
+  release:
+    types: [ created ]
+
+jobs:
+  compile:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ linux, darwin, windows ]
+        arch: [ amd64, 386 ]
+    name: Release - ${{matrix.os}}-${{matrix.arch}}
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.20
+
+      - name: compile
+        run: |
+          GOOS=${{matrix.os}} GOARCH=${{matrix.arch}} make
+
+      - name: Upload release assets
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_name: pinger-${{github.event.release.tag_name}}-${{matrix.os}}-${{matrix.arch}}
+          asset_path: pinger
+          asset_content_type: application/octal-stream

From ad48db3b0aa490603457f814dcd4e12cce0dd42f Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Thu, 29 May 2025 22:24:29 +0200
Subject: [PATCH 11/22] Version 0.0.3

---
 main.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.go b/main.go
index ead1aff..69c24a2 100644
--- a/main.go
+++ b/main.go
@@ -59,7 +59,7 @@ func main() {
 	getopt.Parse()
 
 	if *version {
-		fmt.Println("Version 0.0.2")
+		fmt.Println("Version 0.0.3")
 		os.Exit(0)
 	}
 

From aa05c99bea7bedec02b129d82a437af0bacf1d75 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Fri, 30 May 2025 16:39:08 +0200
Subject: [PATCH 12/22] .github/workflows/release.yml: set correct version

---
 .github/workflows/release.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5b255d1..bf9b38a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.20
+          go-version: "1.20"
 
       - name: compile
         run: |

From 111ff58fcf5a3a12dfacf00cae521ee6099a54c0 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Fri, 30 May 2025 16:44:19 +0200
Subject: [PATCH 13/22] .github/workflows/release.yml: exclude darwin 386

---
 .github/workflows/release.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index bf9b38a..a198643 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,6 +13,9 @@ jobs:
       matrix:
         os: [ linux, darwin, windows ]
         arch: [ amd64, 386 ]
+        exclude:
+          - os: darwin
+            arch: 386
     name: Release - ${{matrix.os}}-${{matrix.arch}}
     runs-on: ubuntu-24.04
     steps:

From 5571ba3f38aecb8292f773f7d519879648acc02b Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sat, 31 May 2025 17:16:22 +0200
Subject: [PATCH 14/22] go.mod: set minimum version to 1.20

---
 go.mod | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/go.mod b/go.mod
index 3598691..d240580 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module pinger
 
-go 1.19
+go 1.20
 
 require (
 	github.com/pborman/getopt/v2 v2.1.0

From 27479462641995309a91739781a92a4b39e02370 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sat, 31 May 2025 17:16:33 +0200
Subject: [PATCH 15/22] add README and LICENSE

---
 LICENSE   | 21 ++++++++++++++++++++
 README.md | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+)
 create mode 100644 LICENSE
 create mode 100644 README.md

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..349c2d8
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023-2025 Henrik Hautakoski
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6a21d42
--- /dev/null
+++ b/README.md
@@ -0,0 +1,57 @@
+# Pinger
+
+**Pinger** is a lightweight, high-performance network utility written in Go. 
+It enables users to send ICMP echo requests (pings) to specified hosts, facilitating network diagnostics and monitoring.
+
+## Features
+
+* Send ICMP echo requests to specified hosts.
+* Measure round-trip time (RTT) for each ping.
+* Support for both IPv4 and IPv6 addresses.
+* Configurable number of ping attempts and intervals.
+* Lightweight and efficient, suitable for scripting and automation.
+
+## Installation
+
+### Prerequisites
+
+* Go (version 1.20 or later) installed on your system.
+* make
+
+### Steps
+
+1. Clone the repository:
+
+```bash
+git clone https://github.com/pnx/pinger.git
+cd pinger
+```
+
+2. Build the application:
+
+```bash
+make
+```
+
+## Usage
+
+See `./pinger -h`
+
+### Example
+
+```bash
+./pinger --udp -t 30s example.com
+```
+
+This command sends UDP echo requests to example.com, stopping after 30 seconds
+
+```bash
+./pinger -c 8 -i 1s example.com
+```
+
+This command sends 8 ICMP echo requests to example.com, with a 1-second interval between pings.
+NOTE: this requires root privileges
+
+## License
+
+This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.

From 57a969561e09adee82da4bdf9872c8078b37ca94 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sat, 31 May 2025 17:24:25 +0200
Subject: [PATCH 16/22] main.go: make printStats() take a probing.Statistics
 object.

---
 main.go | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/main.go b/main.go
index 69c24a2..5ae0c37 100644
--- a/main.go
+++ b/main.go
@@ -12,9 +12,7 @@ import (
 )
 
 // printStats prints statistics from a ping.
-func printStats(pinger *probing.Pinger) {
-	stats := pinger.Statistics()
-
+func printStats(stats *probing.Statistics) {
 	fmt.Printf("%d packets transmitted, %d packets received, %.2f%% packet loss\n",
 		stats.PacketsSent, stats.PacketsRecv, stats.PacketLoss)
 
@@ -38,7 +36,7 @@ func eventLoop(pinger *probing.Pinger, ticker *time.Ticker) {
 			return
 		// Ticker ticks. print stats.
 		case <-ticker.C:
-			printStats(pinger)
+			printStats(pinger.Statistics())
 		}
 	}
 }

From fffed4e4e1255a29aa865334dea95ed838063292 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sat, 31 May 2025 17:24:50 +0200
Subject: [PATCH 17/22] main.go: set printStatus as OnFinish callback to
 pinger.

---
 main.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/main.go b/main.go
index 5ae0c37..f449cac 100644
--- a/main.go
+++ b/main.go
@@ -78,6 +78,7 @@ func main() {
 	pinger.Source = *source
 	pinger.Count = *count
 	pinger.RecordRtts = *record_rtt
+	pinger.OnFinish = printStats
 	if timeout != nil && *timeout > 0 {
 		pinger.Timeout = *timeout
 	}

From 7870fc361ae8acd01ac7a35692842cc7684d3f0e Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sat, 31 May 2025 17:27:17 +0200
Subject: [PATCH 18/22] main.go: cleanup signal output by printing a newline at
 the end.

---
 main.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.go b/main.go
index f449cac..d6e8521 100644
--- a/main.go
+++ b/main.go
@@ -32,7 +32,7 @@ func eventLoop(pinger *probing.Pinger, ticker *time.Ticker) {
 		select {
 		// Got signal. stop pinger and exit goroutine
 		case s := <-sig:
-			fmt.Printf("Recived signal: %s, exiting.", s)
+			fmt.Printf("Recived signal: %s, exiting.\n", s)
 			return
 		// Ticker ticks. print stats.
 		case <-ticker.C:

From a4343fa706cb95ce95fd45769b5ba8578518c2fd Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Sat, 31 May 2025 17:34:38 +0200
Subject: [PATCH 19/22] README.md: minor fix

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 6a21d42..71dd48d 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,7 @@ This command sends UDP echo requests to example.com, stopping after 30 seconds
 ```
 
 This command sends 8 ICMP echo requests to example.com, with a 1-second interval between pings.
+
 NOTE: this requires root privileges
 
 ## License

From b9c0d0b416a925cb8f243f2687307dd743bc065e Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Mon, 11 May 2026 17:33:52 +0200
Subject: [PATCH 20/22] main.go: no need to return as it's the last statement

---
 main.go | 1 -
 1 file changed, 1 deletion(-)

diff --git a/main.go b/main.go
index d6e8521..679d133 100644
--- a/main.go
+++ b/main.go
@@ -90,6 +90,5 @@ func main() {
 	fmt.Println("PING", pinger.Addr())
 	if err = pinger.Run(); err != nil {
 		fmt.Println("Error:", err)
-		return
 	}
 }

From 26de4fa64730260bdb455908fe484c43e203fdbe Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Mon, 11 May 2026 17:35:28 +0200
Subject: [PATCH 21/22] v0.0.4

---
 main.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.go b/main.go
index 679d133..d3f7f20 100644
--- a/main.go
+++ b/main.go
@@ -57,7 +57,7 @@ func main() {
 	getopt.Parse()
 
 	if *version {
-		fmt.Println("Version 0.0.3")
+		fmt.Println("Version 0.0.4")
 		os.Exit(0)
 	}
 

From 30cee15b1986ab6cab773e0bdfcb4997a2661869 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Mon, 11 May 2026 18:07:14 +0200
Subject: [PATCH 22/22] LICENSE: update copyright year to 2026

---
 LICENSE | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/LICENSE b/LICENSE
index 349c2d8..965f691 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2023-2025 Henrik Hautakoski
+Copyright (c) 2023-2026 Henrik Hautakoski
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal