cmd/fpkg: call app in-process

Wrapping fortify is slow, painful and error-prone. Start apps in-process instead.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/path.go

@@ -1,12 +1,23 @@
 package internal
 
-import "path"
+import (
+	"log"
+	"path"
 
-var (
-	Fsu     = compPoison
-	Fortify = compPoison
+	"git.gensokyo.uk/security/fortify/internal/fmsg"
 )
 
-func Path(p string) (string, bool) {
-	return p, p != compPoison && p != "" && path.IsAbs(p)
+var (
+	fsu = compPoison
+)
+
+func MustFsuPath() string {
+	if name, ok := checkPath(fsu); ok {
+		return name
+	}
+	fmsg.BeforeExit()
+	log.Fatal("invalid fsu path, this program is compiled incorrectly")
+	return compPoison
 }
+
+func checkPath(p string) (string, bool) { return p, p != compPoison && p != "" && path.IsAbs(p) }