playing with enviroment variables

1 files changed, 12 insertions, 3 deletions

diff --git a/userspace/simple.c b/userspace/simple.c
index 5322584..bd42d9c 100644
--- a/userspace/simple.c
+++ b/userspace/simple.c
@@ -1,14 +1,23 @@
+#include <stdlib.h>
+
+extern char **environ;
 int main(int argc, char **argv) 
 {
     
 
-    int i;
     printf("argv: 0x%08X\n",argv);
+    printf("env: 0x%08X\n",environ);
+
+    putenv("test=11");
 
-    for(i=0;i<argc;i++)
+    
+    int i=0;
+    while(environ[i]!=NULL)
     {
-	if(!strcmp(argv[i],"-v"))puts("version 1");
+	printf("envvar %s (0x%08X)\n" ,environ[i],environ[i]);
+	i++;
     }
+
     puts("bye");
     
     return 0;