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-rw-r--r--console-tools/loadfont.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/console-tools/loadfont.c b/console-tools/loadfont.c
index 64b7256..0f6afec 100644
--- a/console-tools/loadfont.c
+++ b/console-tools/loadfont.c
@@ -30,8 +30,8 @@
#define PSF_MAXMODE 0x03
#define PSF_SEPARATOR 0xFFFF
-static const char loadfont_usage[] = "loadfont\n"
- "\n" "\tLoad a console font from standard input.\n" "\n";
+static const char loadfont_usage[] = "loadfont\n\n"
+ "Loads a console font from standard input.\n";
struct psf_header {
unsigned char magic1, magic2; /* Magic number */
@@ -47,6 +47,10 @@ extern int loadfont_main(int argc, char **argv)
{
int fd;
+ if (argc>=2 && *argv[1]=='-') {
+ usage(loadfont_usage);
+ }
+
fd = open("/dev/tty0", O_RDWR);
if (fd < 0) {
fprintf(stderr, "Error opening /dev/tty0: %s\n", strerror(errno));