22 дек. 2014 г. 16:26 пользователь "Alexandr Shadchin" <
[email protected]> написал:
>
> On Mon, Dec 22, 2014 at 04:37:22PM +0400, Vadim Zhukov wrote:
> > 22 дек. 2014 г. 15:02 пользователь "Alexandr Shadchin" <
> > [email protected]> написал:
> > >
> > > On Mon, Dec 22, 2014 at 03:52:39PM +0400, Vadim Zhukov wrote:
> > > > 22 дек. 2014 г. 14:40 пользователь "Alexandr Shadchin" <
> > > > [email protected]> написал:
> > > > >
> > > > > Convert atoi -> strtonum. Plus more detailed error messages.
> > > > >
> > > > > OK ?
> > > > >
> > > > > --
> > > > > Alexandr Shadchin
> > > > >
> > > > > Index: wsmoused.c
> > > > >
===================================================================
> > > > > RCS file: /cvs/src/usr.sbin/wsmoused/wsmoused.c,v
> > > > > retrieving revision 1.34
> > > > > diff -u -p -r1.34 wsmoused.c
> > > > > --- wsmoused.c 22 Dec 2014 11:21:49 -0000 1.34
> > > > > +++ wsmoused.c 22 Dec 2014 11:29:36 -0000
> > > > > @@ -175,14 +175,6 @@ static int p2l[MOUSE_MAXBUTTON] = {
> > > > > MOUSE_BUTTON5, MOUSE_BUTTON6, MOUSE_BUTTON7,
MOUSE_BUTTON8,
> > > > > };
> > > > >
> > > > > -static char *
> > > > > -skipspace(char *s)
> > > > > -{
> > > > > - while (isspace((unsigned char)*s))
> > > > > - ++s;
> > > > > - return s;
> > > > > -}
> > > > > -
> > > > > /* mouse_installmap : install a map between physical and logical
> > buttons
> > > > */
> > > > > static int
> > > > > mouse_installmap(char *arg)
> > > > > @@ -190,29 +182,38 @@ mouse_installmap(char *arg)
> > > > > int pbutton;
> > > > > int lbutton;
> > > > > char *s;
> > > > > + const char *errstr;
> > > > >
> > > > > while (*arg) {
> > > > > - arg = skipspace(arg);
> > > > > s = arg;
> > > > > while (isdigit((unsigned char)*arg))
> > > > > ++arg;
> > > >
> > > > So now, if there is some whitespace before digits, arg won't get
> > > > incremented, and FALSE may be returned. This is behaviour change,
is it
> > > > intended?
> > >
> > > No, getopt() eat extra spaces and skipspace() does nothing.
> >
> > No, getopt(3) doesn't eat spaces, neither when argument its separated or
> > written next to option letter.
> >
>
> Tests showed that optarg has no leading and trailing whitespace.
$ cat g.c
#include <sys/types.h>
#include <stdio.h>
#include <unistd.h>
int main(int argc, char **argv){
int opt;
while ((opt = (vector(argc, argv, "o:"))) != -1)
printf("o=%sEOF\n", optarg);
return 0;
}
$ make g && ./g -o " 1 "
cc -O2 -pipe -o g g.c
o= 1 EOF
$
> > > > > - arg = skipspace(arg);
> > > > > - if ((arg <= s) || (*arg != '='))
> > > > > + if ((arg == s) || (*arg != '='))
> > > > > return FALSE;
> > > > > - lbutton = atoi(s);
> > > > > + *arg = '\0';
> > > > > + lbutton = strtonum(s, 1, MOUSE_MAXBUTTON,
&errstr);
> > > > > + if (errstr != NULL) {
> > > > > + warnx("logical button value `%s' is %s, "
> > > > > + "acceptable range is 1-%d",
> > > > > + s, errstr, MOUSE_MAXBUTTON);
> > > > > + *arg = '=';
> > > > > + return FALSE;
> > > > > + }
> > > > > + *arg = '=';
> > > > >
> > > > > - arg = skipspace(++arg);
> > > > > - s = arg;
> > > > > + s = ++arg;
> > > > > while (isdigit((unsigned char)*arg))
> > > > > ++arg;
> > > > > - if (arg <= s || (!isspace((unsigned char)*arg) &&
> > *arg !=
> > > > '\0'))
> > > > > - return FALSE;
> > > > > - pbutton = atoi(s);
> > > > > -
> > > > > - if (lbutton <= 0 || lbutton > MOUSE_MAXBUTTON)
> > > > > + if ((arg == s) || (*arg != '\0'))
> > > > > return FALSE;
> > > > > - if (pbutton <= 0 || pbutton > MOUSE_MAXBUTTON)
> > > > > + pbutton = strtonum(s, 1, MOUSE_MAXBUTTON,
&errstr);
> > > > > + if (errstr != NULL) {
> > > > > + warnx("physical button value `%s' is %s, "
> > > > > + "acceptable range is 1-%d",
> > > > > + s, errstr, MOUSE_MAXBUTTON);
> > > > > return FALSE;
> > > > > + }
> > > > > +
> > > > > p2l[pbutton - 1] = lbutton - 1;
> > > > > }
> > > > > return TRUE;
> > > > > @@ -454,6 +455,7 @@ main(int argc, char **argv)
> > > > > unsigned int type;
> > > > > int opt;
> > > > > int i;
> > > > > + const char *errstr;
> > > > >
> > > > > #define GETOPT_STRING "2dfhip:t:C:D:I:M:"
> > > > > while ((opt = (getopt(argc, argv, GETOPT_STRING))) != -1)
{
> > > > > @@ -498,11 +500,12 @@ main(int argc, char **argv)
> > > > > break;
> > > > > case 'C':
> > > > > #define MAX_CLICKTHRESHOLD 2000 /* max delay for double click */
> > > > > - mouse.clickthreshold = atoi(optarg);
> > > > > - if (mouse.clickthreshold < 0 ||
> > > > > - mouse.clickthreshold >
> > MAX_CLICKTHRESHOLD) {
> > > > > - warnx("invalid threshold `%s': max
> > value
> > > > is %d",
> > > > > - optarg, MAX_CLICKTHRESHOLD);
> > > > > + mouse.clickthreshold = strtonum(optarg, 0,
> > > > > + MAX_CLICKTHRESHOLD, &errstr);
> > > > > + if (errstr != NULL) {
> > > > > + warnx("threshold value `%s' is
%s, "
> > > > > + "acceptable range is 0-%d",
> > > > > + optarg, errstr,
> > MAX_CLICKTHRESHOLD);
> > > > > usage();
> > > > > }
> > > > > break;
> > > > >
--
Vadim Zhukov
