zshrc: switch to myip.grml.org with IPv6 support, options -4 + -6 to force respective protocols

mika · mika · commit 792d1d129a23 · 2026-02-11T16:48:18.000+01:00
http://v4.showip.spamt.net/ is down since at least 2026-01-11: % myip <html> <head><title>502 Bad Gateway</title></head> <body> <center><h1>502 Bad Gateway</h1></center> <hr><center>nginx/1.24.0 (Ubuntu)</center> </body> </html> We decided to implement our own solution, to not leak IP addresses to any foreign services. While doing so, add support for IPv6, and also support the "-4" + "-6" command line options, to explicitly request IPv4 + IPv6 addresses. Closes: /issues/237
diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
@@ -3443,9 +3443,14 @@ function _simple_extract () {
 compdef _simple_extract simple-extract
 [[ -n "$GRML_NO_SMALL_ALIASES" ]] || alias se=simple-extract
 
-#f5# Show "public" IPv4 address of current system on stdout. Requires network access and curl(1).
+#f5# Show "public" IP address of current system on stdout. Requires network access and curl(1).
 function myip () {
-    curl http://v4.showip.spamt.net/ -H 'User-Agent: grml-etc-core-zshrc'
+    if [[ $# == 0 ]] || [[ $1 == "-4" ]] || [[ $1 == "-6" ]] ; then
+        curl "$@" https://myip.grml.org -H 'User-Agent: grml-etc-core-zshrc'
+    else
+        printf 'usage: myip [-4|-6]\n' >&2
+        return 1
+    fi
 }
 
 #f5# Change the xterm title from within GNU-screen
