From c9df5a7aceaecd7d2f022a6ebccc7b8a9909059b Mon Sep 17 00:00:00 2001
From: Jeff Carr <jcarr@wit.com>
Date: Thu, 15 Feb 2024 22:52:11 -0600
Subject: start deprecating and modernizing this code

---
 proc.go | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 proc.go

(limited to 'proc.go')

diff --git a/proc.go b/proc.go
new file mode 100644
index 0000000..d78fbcf
--- /dev/null
+++ b/proc.go
@@ -0,0 +1,57 @@
+package shell
+
+import (
+	"fmt"
+	"io/ioutil"
+	"strconv"
+	"strings"
+)
+
+// get your parent PID
+func GetPPID(pid int) (int, error) {
+	data, err := ioutil.ReadFile(fmt.Sprintf("/proc/%d/stat", pid))
+	if err != nil {
+		return 0, err
+	}
+
+	parts := strings.Fields(string(data))
+	if len(parts) < 4 {
+		return 0, fmt.Errorf("unexpected format of /proc/%d/stat", pid)
+	}
+
+	ppid, err := strconv.Atoi(parts[3])
+	if err != nil {
+		return 0, err
+	}
+
+	return ppid, nil
+}
+
+// get comm from proc
+func GetComm(pid int) (string, error) {
+	data, err := ioutil.ReadFile(fmt.Sprintf("/proc/%d/comm", pid))
+	if err != nil {
+		return "", err
+	}
+
+	return strings.TrimSpace(string(data)), nil
+}
+
+/*
+func main() {
+    pid := os.Getpid()
+    ppid, err := getPPID(pid)
+    if err != nil {
+        fmt.Println("Error getting PPID:", err)
+        return
+    }
+
+    comm, err := getComm(ppid)
+    if err != nil {
+        fmt.Println("Error getting comm:", err)
+        return
+    }
+
+    fmt.Println(comm)
+}
+*/
-- 
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