fix for -t truncate mode

A previous change caused truncate mode to show all lines, not just the first N
codekitchen · Feb 21, 2020 · 9909fd3 · 9909fd3
1 parent 63c4144
commit 9909fd3
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/src/main.c b/src/main.c
@@ -98,8 +98,12 @@ void read_show_output(FILE *s, size_t *count, size_t *shown, size_t *total) {
  termput0("cd");
  int lines_left = s_lines - 2;
  for (;;) {
- ssize_t display_len =
- read_line(s, truncate_lines ? s_cols : s_cols * lines_left);
+ size_t max_display_len;
+ if (truncate_lines)
+ max_display_len = lines_left > 0 ? s_cols : 0;
+ else
+ max_display_len = s_cols * lines_left;
+ ssize_t display_len = read_line(s, max_display_len);
  if (display_len < 0)
  break;
  *total += 1;