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top: make command line switch parsing even more robust

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This program has always tried to maintain an extermely
robust command line parsing procedure, far more robust
that what's available with the getopt stuff. But, with
the introduction of our first numeric switch it should
have been made even more robust than, in fact, it was.

This commit will now accomplish such a desirable goal.

Reference(s):
. added '1' command line switch
commit 5e708c5db7

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner 2017-03-21 00:00:00 -05:00 committed by Craig Small
parent 810e1d38ab
commit 3e5c950a5e
1 changed files with 14 additions and 14 deletions
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28
top/top.c
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@ -3182,13 +3182,13 @@ static void parse_args (char **args) {
else TOGw(Curwin, View_CPUSUM);
OFFw(Curwin, View_CPUNOD);
SETw(Curwin, View_STATES);
break;
goto bump_cp;
case 'b':
Batch = 1;
break;
goto bump_cp;
case 'c':
TOGw(Curwin, Show_CMDLIN);
break;
goto bump_cp;
case 'd':
if (cp[1]) ++cp;
else if (*args) cp = *args++;
@ -3206,10 +3206,10 @@ static void parse_args (char **args) {
if (!(got = strchr(get, tolower(*cp))))
error_exit(fmtmk(N_fmt(BAD_memscale_fmt), *cp));
Rc.summ_mscale = (int)(got - get);
} break;
} goto bump_cp;
case 'H':
Thread_mode = 1;
break;
goto bump_cp;
case 'h':
case 'v':
puts(fmtmk(N_fmt(HELP_cmdline_fmt)
@ -3218,7 +3218,7 @@ static void parse_args (char **args) {
case 'i':
TOGw(Curwin, Show_IDLEPS);
Curwin->rc.maxtasks = 0;
break;
goto bump_cp;
case 'n':
if (cp[1]) cp++;
else if (*args) cp = *args++;
@ -3246,7 +3246,7 @@ static void parse_args (char **args) {
puts(N_col(i));
bye_bye(NULL);
case 'p':
{ unsigned pid; char *p;
{ int pid; char *p;
if (Curwin->usrseltyp) error_exit(N_txt(SELECT_clash_txt));
do {
if (cp[1]) cp++;
@ -3255,7 +3255,7 @@ static void parse_args (char **args) {
if (Monpidsidx >= MONPIDMAX)
error_exit(fmtmk(N_fmt(LIMIT_exceed_fmt), MONPIDMAX));
if (1 != sscanf(cp, "%d", &pid)
|| strpbrk(cp, "+-."))
|| strpbrk(cp, wrong_str))
error_exit(fmtmk(N_fmt(BAD_mon_pids_fmt), cp));
if (!pid) pid = getpid();
for (i = 0; i < Monpidsidx; i++)
@ -3265,14 +3265,13 @@ static void parse_args (char **args) {
if (!(p = strchr(cp, ','))) break;
cp = p;
} while (*cp);
}
break;
} break;
case 's':
Secure_mode = 1;
break;
goto bump_cp;
case 'S':
TOGw(Curwin, Show_CTIMES);
break;
goto bump_cp;
case 'u':
case 'U':
{ const char *errmsg;
@ -3303,8 +3302,9 @@ static void parse_args (char **args) {
} // end: switch (*cp)
// advance cp and jump over any numerical args used above
if (*cp) cp += strspn(&cp[1], numbs_str) + 1;
if (*cp) cp += strspn(&cp[1], numbs_str);
bump_cp:
++cp;
} // end: while (*cp)
} // end: while (*args)