solana: fix network handling in verify script (#1340)

solana/verify

@@ -2,28 +2,33 @@
 
 set -euo pipefail
 
-usage="Usage:
-  $(basename "$0") <.so file> <account address> [-h] [-n network] -- Verify that the deployed on-chain bytecode matches the local object file
+function usage() {
+cat<<-EOF >&2
+	Usage:
+	  $(basename "$0") [-h] [-n network] <.so file> <account address> -- Verify that the deployed on-chain bytecode matches the local object file
 
-  where:
-      -h  show this help text
-      -n  set the network (mainnet, testnet, devnet. defaults to \$NETWORK if set)"
+	  where:
+	      -h  show this help text
+	      -n  set the network (mainnet, testnet, devnet. defaults to \$NETWORK if set)
+EOF
+exit 1
+}
 
-network=$NETWORK
+network=""
+if [[ -n $NETWORK ]]; then
+  network=$NETWORK
+fi
 while getopts ':hn:' option; do
   case "$option" in
-    h) echo "$usage"
-       exit
+    h) usage
        ;;
     n) network=$OPTARG
        ;;
     :) printf "missing argument for -%s\n" "$OPTARG" >&2
-       echo "$usage" >&2
-       exit 1
+       usage
        ;;
    \?) printf "illegal option: -%s\n" "$OPTARG" >&2
-       echo "$usage" >&2
-       exit 1
+       usage
        ;;
   esac
 done
@@ -34,19 +39,21 @@ case "$network" in
   testnet) moniker="d";;
   devnet)  moniker="l";;
   *) printf "Network not set. Specify with -n\n" >&2
-     echo "$usage" >&2
-     exit 1
+     usage
      ;;
 esac
 
-[ $# -ne 2 ] && { echo "$usage" >&2; exit 1; }
+[ $# -ne 2 ] && usage
 obj_file=$1
 sol_addr=$2
 
+account_json=$(mktemp)
+account_dump=$(mktemp)
+
 # Grab account content as JSON
-solana account $sol_addr -u $moniker --output-file /tmp/account.json --output json-compact >/dev/null
+solana account "$sol_addr" -u $moniker --output-file "$account_json" --output json-compact >/dev/null
 # decode the base64 account data to binary
-cat /tmp/account.json | jq '.account.data[0]' | sed s/\"//g | base64 -d > /tmp/account.dump
+jq '.account.data[0]' "$account_json" | sed s/\"//g | base64 -d > "$account_dump"
 
 # The first 37 bytes are irrelevant, the actual ELF object code starts after,
 # so we drop these bytes. Presumably those bytes correspond to an encoded rust
@@ -54,18 +61,18 @@ cat /tmp/account.json | jq '.account.data[0]' | sed s/\"//g | base64 -d > /tmp/a
 # Set the block size to 37 bytes and skip the first block.
 dd bs=37 skip=1 if=/tmp/account.dump of=/tmp/bytecode.dump 2>/dev/null
 
-hash1=`sha256sum /tmp/bytecode.dump | cut -f1 -d' '`
-hash2=`sha256sum $obj_file | cut -f1 -d' '`
+hash1=$(sha256sum /tmp/bytecode.dump | cut -f1 -d' ')
+hash2=$(sha256sum "$obj_file" | cut -f1 -d' ')
 
 echo "Deployed bytecode hash (on $network):"
-echo $hash1
+echo "$hash1"
 echo "$obj_file hash:"
-echo $hash2
+echo "$hash2"
 
 if [ "$hash1" == "$hash2" ]; then
   printf "\033[0;32mSuccessfully verified\033[0m\n";
   exit 0;
 else
-  printf "\033[0;31mFailed to verify\033[0m\n";
+  printf "\033[0;31mFailed to verify\033[0m\n" >&2;
   exit 1;
 fi