long
getmntoptnum(mntoptparse_t mp, const char *opt)
{
char *ep;
long rv;
void (*fun)(int, const char *, ...) = NULL;
const char *val = getmntoptstr(mp, opt);
if (val == NULL) {
if (getmnt_silent == 0)
errx(1, "Missing %s argument", opt);
else
return -1;
}
errno = 0;
rv = strtol(val, &ep, 0);
if (*ep)
fun = errx;
if (errno == ERANGE && (rv == LONG_MAX || rv == LONG_MIN))
fun = err;
if (fun) {
if (getmnt_silent != 0)
return -1;
(*fun)(1, "Invalid %s argument `%s'", opt, val);
}
return rv;
}
static char*
egetmntoptstr(mntoptparse_t mp, const char *k)
{
const char *v;
char *p;
v = getmntoptstr(mp, k);
if (v == NULL)
return NULL;
p = strdup(v);
if (p == NULL)
err(1, NULL);
return p;
}
