arg.h: fixed argv checks order

This prevents accessing to a potentially out-of-bounds memory section. Signed-off-by: Lucas Gabriel Vuotto <[email protected]>
fsareshwala · Feb 22, 2016 · b3d9451 · b3d9451
1 parent 3de85ca
commit b3d9451
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/arg.h b/arg.h
@@ -10,8 +10,8 @@ extern char *argv0;
 
 /* use main(int argc, char *argv[]) */
 #define ARGBEGIN	for (argv0 = *argv, argv++, argc--;\
-					argv[0] && argv[0][1]\
-					&& argv[0][0] == '-';\
+					argv[0] && argv[0][0] == '-'\
+					&& argv[0][1];\
 					argc--, argv++) {\
 				char argc_;\
 				char **argv_;\