From a7cfa7e34930d3cd153c58d911f49e8957e4dc29 Mon Sep 17 00:00:00 2001
From: Ralph Ronnquist <ralph.ronnquist@gmail.com>
Date: Wed, 26 Oct 2022 14:32:39 +1100
Subject: [PATCH] using a macro for library name

---
 tarmap.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tarmap.c b/tarmap.c
index e61e788..279b234 100644
--- a/tarmap.c
+++ b/tarmap.c
@@ -5,6 +5,9 @@
 #include <unistd.h>
 
 #define MAXSIZE 1000000
+
+#define LIBTARMAP "libtarmap-0.so"
+
 // Add/create string to end of env var with colon separation
 static char *makeEnv(char *name,char *value) {
     static char buffer[ MAXSIZE ]; // new variable value
@@ -54,7 +57,7 @@ int main(int argc,char *argv[],char *envp[]) {
     }
     char **nenvp = (char**) calloc( sizeof( char* ), n+1 );
     memcpy( nenvp, envp, n * sizeof( char*) );
-    nenvp[ i_preload ] = makeEnv( "LD_PRELOAD", "libtarmap.so" );
+    nenvp[ i_preload ] = makeEnv( "LD_PRELOAD", LIBTARMAP );
     nenvp[ i_tarmap ] = makeEnv( "TARMAP", argv[1] );
     execve( "/bin/bash", argv+1, nenvp );
     perror( "tarmap exec" );
-- 
2.47.2