scion-apps: fix build with Darwin sandbox

pkgs/by-name/sc/scion-apps/darwin-sandbox-fix.patch

@@ -0,0 +1,20 @@
+--- vendor/modernc.org/libc/honnef.co/go/netdb/netdb.go
++++ vendor/modernc.org/libc/honnef.co/go/netdb/netdb.go
+@@ -696,7 +696,7 @@ func init() {
+ 	// Load protocols
+ 	data, err := ioutil.ReadFile("/etc/protocols")
+ 	if err != nil {
+-		if !os.IsNotExist(err) {
++		if !os.IsNotExist(err) && !os.IsPermission(err) {
+ 			panic(err)
+ 		}
+ 
+@@ -732,7 +732,7 @@ func init() {
+ 	// Load services
+ 	data, err = ioutil.ReadFile("/etc/services")
+ 	if err != nil {
+-		if !os.IsNotExist(err) {
++		if !os.IsNotExist(err) && !os.IsPermission(err) {
+ 			panic(err)
+ 		}
+ 

pkgs/by-name/sc/scion-apps/package.nix

@@ -16,7 +16,14 @@ buildGoModule {
     hash = "sha256-Tj0vtdYDmKbMpcO+t9KrtFewqdjusr0JRXpX6gY69WM=";
   };
 
-  vendorHash = "sha256-om6ArtnKC9Gm5BdAqW57BnE0BsOmSPAAIPDDrQ5ZmJA=";
+  vendorHash = "sha256-/gBtKgCDyoCnJLfH5WgTCdOvoYRpPn8x2OHW0uYQnGQ=";
+
+  overrideModAttrs = old: {
+    # https://gitlab.com/cznic/libc/-/merge_requests/10
+    postBuild = ''
+      patch -p0 < ${./darwin-sandbox-fix.patch}
+    '';
+  };
 
   postPatch = ''
     substituteInPlace webapp/web/tests/health/scmpcheck.sh \