diff options
Diffstat (limited to 'loadfont.c')
| -rw-r--r-- | loadfont.c | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -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)); |