top: fix unlikely edge case wherein all fields are off

While testing a newlib interface for pids acquisitions I encountered some unexpected results if an idiot user (me) turns off all displayable fields. So, this commit ensures that the PID field will be shown as a minimum. Signed-off-by: Jim Warner <james.warner@comcast.net>
2015-08-03 00:00:00 -05:00 · 2015-08-03 00:00:00 -05:00 · 180bbb4032
commit 180bbb4032
parent b7fe46a815
1 changed files with 1 additions and 0 deletions
--- a/top/top.c
+++ b/top/top.c
@ -2021,6 +2021,7 @@ static void calibrate_fields (void) {
 #endif
            }
         }
+         if (!w->totpflgs) w->pflgsall[w->totpflgs++] = EU_PID;

         /* build a preliminary columns header not to exceed screen width
            while accounting for a possible leading window number */