From ade357cd3c50d74ae76a0957bcce7e1964962617 Mon Sep 17 00:00:00 2001
From: Alex English <alexenglish@users.noreply.github.com>
Date: Wed, 26 May 2021 21:29:10 -0700
Subject: [PATCH] Updated zcparam URLs, removed logic for downloading in parts.

---
 zcutil/fetch-params.bat |  4 ++--
 zcutil/fetch-params.sh  | 27 +++++++++------------------
 2 files changed, 11 insertions(+), 20 deletions(-)

diff --git a/zcutil/fetch-params.bat b/zcutil/fetch-params.bat
index ef7135cfd..aa47ff00f 100644
--- a/zcutil/fetch-params.bat
+++ b/zcutil/fetch-params.bat
@@ -12,7 +12,7 @@ SET sapling-spend.params=8e48ffd23abb3a5fd9c5589204f32d9c31285a04b78096ba40a79b7
 SET sapling-output.params=2f0ebbcbb9bb0bcffe95a397e7eba89c29eb4dde6191c339db88570e3f3fb0e4
 SET sprout-groth16.params=b685d700c60328498fbde589c8c7c484c722b788b265b72af448a5bf0ee55b50
 SET "ZPARAMS_DIR=%APPDATA%\ZcashParams"
-SET ZPARAMS_URL=https://z.cash/downloads
+SET ZPARAMS_URL=https://verus.io/zcparams
 
 
 CALL :MAIN
@@ -84,4 +84,4 @@ FOR /f "skip=1 tokens=* delims=" %%# IN ('certutil -hashfile !file! SHA256') DO
     )
 )
 SET "%~2=!sha256sum!"
-GOTO :EOF
\ No newline at end of file
+GOTO :EOF
diff --git a/zcutil/fetch-params.sh b/zcutil/fetch-params.sh
index 300e12341..d9a5af16f 100755
--- a/zcutil/fetch-params.sh
+++ b/zcutil/fetch-params.sh
@@ -13,7 +13,7 @@ SPROUT_VKEY_NAME='sprout-verifying.key'
 SAPLING_SPEND_NAME='sapling-spend.params'
 SAPLING_OUTPUT_NAME='sapling-output.params'
 SAPLING_SPROUT_GROTH16_NAME='sprout-groth16.params'
-SPROUT_URL="https://download.z.cash/downloads"
+SPROUT_URL="https://verus.io/zcparams"
 SPROUT_IPFS="/ipfs/QmZKKx7Xup7LiAtFRhYsE1M7waXcv9ir9eCECyXAFGxhEo"
 
 SHA256CMD="$(command -v sha256sum || echo shasum)"
@@ -107,26 +107,17 @@ function fetch_params {
 
     if ! [ -f "$output" ]
     then
-        for i in 1 2
-        do
-            for method in wget ipfs curl failure; do
-                if "fetch_$method" "${filename}.part.${i}" "${dlname}.part.${i}"; then
-                    echo "Download of part ${i} successful!"
-                    break
-                fi
-            done
-        done
-
-        for i in 1 2
-        do
-            if ! [ -f "${dlname}.part.${i}" ]
-            then
-                fetch_failure
+        for method in wget ipfs curl failure; do
+            if "fetch_$method" "${filename}" "${dlname}"; then
+                echo "Download successful!"
+                break
             fi
         done
 
-        cat "${dlname}.part.1" "${dlname}.part.2" > "${dlname}"
-        rm "${dlname}.part.1" "${dlname}.part.2"
+        if ! [ -f "${dlname}" ]
+        then
+            fetch_failure
+        fi
 
         "$SHA256CMD" $SHA256ARGS -c <<EOF
 $expectedhash  $dlname