start deprecating and modernizing this codev0.20.8

1 files changed, 57 insertions, 0 deletions

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)
+}
+*/