add dirs

2026-09-21 18:34:03 +03:00
parent 728eab3213
commit e1f9a3b08b
2 changed files with 0 additions and 0 deletions
@@ -0,0 +1,145 @@
+#!/bin/ksh
+
+#
+# ports
+#
+# Show network sockets with their owning processes.
+#
+# Similar idea to Linux:
+#
+#     netstat -tulpn
+#
+# OpenBSD implementation using:
+#
+#     fstat
+#     ps
+#
+# Run as root for complete information.
+#
+
+
+# ------------------------------------------------------------
+# Header
+# ------------------------------------------------------------
+
+printf "%-5s %-28s %-8s %-12s %s\n" \
+    "PROTO" \
+    "LOCAL ADDRESS" \
+    "PID" \
+    "USER" \
+    "COMMAND"
+
+printf "%-5s %-28s %-8s %-12s %s\n" \
+    "-----" \
+    "----------------------------" \
+    "--------" \
+    "------------" \
+    "-------"
+
+
+# ------------------------------------------------------------
+# Read Internet sockets from fstat
+# ------------------------------------------------------------
+
+fstat 2>/dev/null |
+awk '
+    #
+    # We only want IPv4/IPv6 Internet sockets.
+    #
+    $5 == "internet" || $5 == "internet6" {
+
+        user    = $1
+        process = $2
+        pid     = $3
+        family  = $5
+        type    = $6
+        proto   = $7
+
+        #
+        # Ignore raw sockets.
+        #
+        if (type != "stream" && type != "dgram")
+            next
+
+        #
+        # Only TCP and UDP.
+        #
+        if (proto != "tcp" && proto != "udp")
+            next
+
+
+        #
+        # Determine tcp4/tcp6/udp4/udp6.
+        #
+        if (family == "internet6")
+            proto = proto "6"
+        else
+            proto = proto "4"
+
+
+        #
+        # Find the local address.
+        #
+        # fstat output contains a kernel socket pointer before
+        # TCP addresses, for example:
+        #
+        #   tcp 0xffff800001058140 *:22
+        #
+        # UDP normally looks like:
+        #
+        #   udp 192.168.0.2:37163 <-> ...
+        #
+        # Search fields after the protocol for the first field
+        # containing ":".
+        #
+
+        local = "-"
+
+        for (i = 8; i <= NF; i++) {
+
+            if ($i ~ /:/) {
+                local = $i
+                break
+            }
+        }
+
+
+        #
+        # Print fields separated by tabs so the shell can
+        # safely parse them.
+        #
+        printf "%s\t%s\t%s\t%s\n",
+            proto,
+            local,
+            pid,
+            user
+    }
+' |
+while IFS='	' read proto local pid user
+do
+
+    # --------------------------------------------------------
+    # Get complete command line from PID.
+    # --------------------------------------------------------
+
+    command="$(
+        ps -p "$pid" -o args= 2>/dev/null
+    )"
+
+    if [ -z "$command" ]; then
+        command="-"
+    fi
+
+
+    # --------------------------------------------------------
+    # Output
+    # --------------------------------------------------------
+
+    printf "%-5s %-28s %-8s %-12s %s\n" \
+        "$proto" \
+        "$local" \
+        "$pid" \
+        "$user" \
+        "$command"
+
+done