Pring usage when no arguments are supplied.

git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@5 81a1dc3b-b13d-400b-aceb-764788c761c2
2000-08-05 05:14:17 +00:00 · 2000-08-05 05:14:17 +00:00 · 324753a80c
parent 52ae174073
commit 324753a80c
1 changed files with 5 additions and 0 deletions
--- a/avrprog.c
+++ b/avrprog.c
@ -525,6 +525,11 @@ int main ( int argc, char * argv [] )
  else
    progname = argv[0];

+  if (argc == 1) {
+    usage();
+    return 0;
+  }
+
  while ((ch = getopt(argc,argv,"?efo:ru:")) != -1) {
    switch (ch) {
      case 'e':