Tweak terminal_size to never set either to 0, and return true/false whether it could determine at least one coordinate.

(If you set $COLUMNS but not $ROWS, we assume you're happy with the 80x25 default for the other.)

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/lib.h b/lib/lib.h
index ef688a32..94884156 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -156,7 +156,7 @@ int copy_tempfile(int fdin, char *name, char **tempname);
 void delete_tempfile(int fdin, int fdout, char **tempname);
 void replace_tempfile(int fdin, int fdout, char **tempname);
 void crc_init(unsigned int *crc_table, int little_endian);
-void terminal_size(unsigned *x, unsigned *y);
+int terminal_size(unsigned *x, unsigned *y);
 int yesno(char *prompt, int def);
 void names_to_pid(char **names, int (*callback)(pid_t pid, char *name));