prefer no dnstools solutions

web/whatismyip

@@ -2,34 +2,48 @@
 
 
 function helpexit() {
-    echo "Print your public internet IP address."
+  echo "Print your public internet IP address."
-    echo "-n  return as host name."
+  echo "-n  return as host name."
-    echo "-l  display only local addresses."
+  echo "-l  display only local addresses."
-    echo "-j  JSON output from ifconfig.co"
+  echo "-j  JSON output from ifconfig.co"
-    exit
+  exit
 }
 function locals_only() {
   ip -4 -o addr | awk '!/^[0-9]*: ?lo|link\/ether/ {printf "%18s  %s\n", $4, $2}' | sort -k 2
   exit $?
 }
 function ifconfig_service() {
-  which curl &>/dev/null && {
+  which jq &>/dev/null && JQ="jq ." || JQ="cat -"
-    curl -4 ifconfig.co/json; exit $?
+  $CURL ifconfig.co/json | $JQ
-  }
+  exit $?
-  which wget &>/dev/null && {
-    wget -q -O - ifconfig.co/json; exit $?
-  }
 }
 
+function setup_curl() {
+  which curl &>/dev/null && {
+    CURL="curl -s -4"
+    return
+  }
+
+  which wget &>/dev/null && {
+    CURL="wget -q -O - "
+    return
+  }
+  echo "No curl or wget present" >2
+  exit 1
+}
+
+
 for (( i=1; i<=$#; i++ )); do
-  [[ "${!i}" = "--help" ]] && helpexit                                            
+  [[ "${!i}" = "--help" ]] && helpexit
-  [[ "${!i}" = "-h" ]] && helpexit                                            
+  [[ "${!i}" = "-h" ]] && helpexit
 done
 for (( i=1; i<=1; i++ )); do
   [[ "${!i}" = "-n" ]] && { NAME=1; continue; }
   [[ "${!i}" = "-l" ]] && { LOCAL=1; continue; }
   [[ "${!i}" = "-j" ]] && { JSON=1; continue; }
-done                       
+done
+
+setup_curl
 
 if [[ "$LOCAL" -eq 1 ]]; then
   locals_only
@@ -39,18 +53,16 @@ if [[ "$JSON" -eq 1 ]]; then
   ifconfig_service
 fi
 
-which dig &> /dev/null || {
+IP=$( $CURL ifconfig.co/ip )
-  echo Install apt dnsutils >&2
-  exit 1
-} 
-   
-
-IP=$( dig +short myip.opendns.com @resolver1.opendns.com )
 if [[ -z "$IP" ]]; then
-    IP=$( curl -s -4 ifconfig.co/ip )
+  which dig &> /dev/null || {
+    echo Install apt dnsutils >&2
+    exit 1
+  }
+  IP=$( dig +short myip.opendns.com @resolver1.opendns.com )
 fi
 
-if [[ "$NAME" -eq 1 ]]; then 
+if [[ "$NAME" -eq 1 ]]; then
   output=$( dig +short -x "$IP" )
 else
   output="$IP"