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top: other graph_cpus, graph_mems, and summ_mscale fix

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This patch replaces an original patch referenced below
which has now been reversed. We now validate variables
'graph_cpus', 'graph_mems' and 'summ_mscale' just once
at startup. Thereafter, top enforces the proper range.

[ we afford the same treatment to that 'task_mscale' ]
[ variable, which was ignored in the original patch. ]

Reference(s):
. original qualys patch
0099-top-Check-graph_cpus-graph_mems-and-summ_mscale.patch
commit cd8ba5670e

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner 2018-05-18 00:00:00 -05:00 committed by Craig Small
parent d1fbc5fbd4
commit 53e2654726
1 changed files with 10 additions and 1 deletions
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11
top/top.c
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@ -3756,6 +3756,11 @@ error Hey, fix the above fscanf 'PFLAGSSIZ' dependency !
return p;
if (UNSAFE_SORTINDX(w->rc.sortindx, sizeof(Fieldstab) / sizeof(Fieldstab[0])))
return p;
if (w->rc.graph_cpus < 0 || w->rc.graph_cpus > 2)
return p;
if (w->rc.graph_mems < 0 || w->rc.graph_mems > 2)
return p;
if (4 != fscanf(fp, "\tsummclr=%d, msgsclr=%d, headclr=%d, taskclr=%d\n"
, &w->rc.summclr, &w->rc.msgsclr
, &w->rc.headclr, &w->rc.taskclr))
@ -3795,6 +3800,10 @@ error Hey, fix the above fscanf 'PFLAGSSIZ' dependency !
; // avoid -Wunused-result
if (Rc.fixed_widest < -1 || Rc.fixed_widest > SCREENMAX)
Rc.fixed_widest = 0;
if (Rc.summ_mscale < 0 || Rc.summ_mscale > SK_Eb)
Rc.summ_mscale = 0;
if (Rc.task_mscale < 0 || Rc.task_mscale > SK_Pb)
Rc.task_mscale = 0;
// we'll start off Inspect stuff with 1 'potential' blank line
// ( only realized if we end up with Inspect.total > 0 )
@ -5619,7 +5628,7 @@ numa_nope:
}
if (w->rc.graph_mems) {
static struct {
static const struct {
const char *used, *misc, *swap, *type;
} gtab[] = {
{ "%-.*s~7", "%-.*s~8", "%-.*s~8", Graph_bars },