arg.h: fixed argv checks order - dmenu

commit b3d9451c2ddfad7c1b10e9a868afed4d92b37e41
parent 3de85ca21cedf2a9f67755afc8ef031a9170b96a
Author: Lucas Gabriel Vuotto <l.vuotto92@gmail.com>
Date:   Mon, 22 Feb 2016 11:03:36 -0300

arg.h: fixed argv checks order

This prevents accessing to a potentially out-of-bounds memory section.

Signed-off-by: Lucas Gabriel Vuotto <l.vuotto92@gmail.com>

Diffstat:
M arg.h  | 4 ++--

1 file changed, 2 insertions(+), 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_;\