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Maximize time_t when intmax_t is available

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Well, I'm not actually changing time_t, just changing how time_t
valued opt values are converted from string to time_t.

Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Viktor Dukhovni
2016-01-12 21:13:34 -05:00
parent ef30a6845a
commit 03f887ca12
3 changed files with 119 additions and 12 deletions
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108
apps/opt.c
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@@ -75,6 +75,11 @@ static const OPTIONS *unknown;
static const OPTIONS *opts;
static char prog[40];
#if !defined(INTMAX_MAX) || !defined(UINTMAX_MAX)
#define opt_imax opt_long
#define opt_umax opt_ulong
#endif
/*
* Return the simple name of the program; removing various platform gunk.
*/
@@ -181,10 +186,13 @@ char *opt_init(int ac, char **av, const OPTIONS *o)
/* Make sure options are legit. */
assert(o->name[0] != '-');
assert(o->retval > 0);
assert(i == 0 || i == '-'
|| i == 'n' || i == 'p' || i == 'u'
|| i == 's' || i == '<' || i == '>' || i == '/'
|| i == 'f' || i == 'F');
switch (i) {
case 0: case '-': case '/': case '<': case '>': case 'F': case 'M':
case 'L': case 'U': case 'f': case 'n': case 'p': case 's': case 'u':
break;
default:
assert(0);
}
/* Make sure there are no duplicates. */
for (next = o + 1; next->name; ++next) {
@@ -389,6 +397,53 @@ int opt_long(const char *value, long *result)
return 1;
}
#if defined(INTMAX_MAX) && defined(UINTMAX_MAX)
/* Parse an intmax_t, put it into *result; return 0 on failure, else 1. */
int opt_imax(const char *value, intmax_t *result)
{
int oerrno = errno;
intmax_t m;
char *endp;
m = strtoimax(value, &endp, 0);
if (*endp
|| endp == value
|| ((m == INTMAX_MAX || m == INTMAX_MIN) && errno == ERANGE)
|| (m == 0 && errno != 0)) {
BIO_printf(bio_err, "%s: Can't parse \"%s\" as a number\n",
prog, value);
errno = oerrno;
return 0;
}
*result = m;
errno = oerrno;
return 1;
}
/* Parse a uintmax_t, put it into *result; return 0 on failure, else 1. */
int opt_umax(const char *value, uintmax_t *result)
{
int oerrno = errno;
uintmax_t m;
char *endp;
m = strtoumax(value, &endp, 0);
if (*endp
|| endp == value
|| (m == UINTMAX_MAX && errno == ERANGE)
|| (m == 0 && errno != 0)) {
BIO_printf(bio_err, "%s: Can't parse \"%s\" as a number\n",
prog, value);
errno = oerrno;
return 0;
}
*result = m;
errno = oerrno;
return 1;
}
#endif
/*
* Parse an unsigned long, put it into *result; return 0 on failure, else 1.
*/
@@ -422,8 +477,8 @@ enum range { OPT_V_ENUM };
int opt_verify(int opt, X509_VERIFY_PARAM *vpm)
{
long l;
int i;
ossl_intmax_t t = 0;
ASN1_OBJECT *otmp;
X509_PURPOSE *xptmp;
const X509_VERIFY_PARAM *vtmp;
@@ -469,10 +524,14 @@ int opt_verify(int opt, X509_VERIFY_PARAM *vpm)
X509_VERIFY_PARAM_set_depth(vpm, i);
break;
case OPT_V_ATTIME:
/* If we have C99 we could use intmax_t for all time_t values */
opt_long(opt_arg(), &l);
if (l)
X509_VERIFY_PARAM_set_time(vpm, (time_t)l);
if (!opt_imax(opt_arg(), &t))
return 0;
if (t != (time_t)t) {
BIO_printf(bio_err, "%s: epoch time out of range %s\n",
prog, opt_arg());
return 0;
}
X509_VERIFY_PARAM_set_time(vpm, (time_t)t);
break;
case OPT_V_VERIFY_HOSTNAME:
if (!X509_VERIFY_PARAM_set1_host(vpm, opt_arg(), 0))
@@ -562,7 +621,10 @@ int opt_next(void)
char *p;
const OPTIONS *o;
int ival;
unsigned long uval;
long lval;
unsigned long ulval;
ossl_intmax_t imval;
ossl_uintmax_t umval;
/* Look at current arg; at end of the list? */
arg = NULL;
@@ -649,8 +711,32 @@ int opt_next(void)
return -1;
}
break;
case 'M':
if (!opt_imax(arg, &imval)) {
BIO_printf(bio_err,
"%s: Invalid number \"%s\" for -%s\n",
prog, arg, o->name);
return -1;
}
break;
case 'U':
if (!opt_umax(arg, &umval)) {
BIO_printf(bio_err,
"%s: Invalid number \"%s\" for -%s\n",
prog, arg, o->name);
return -1;
}
break;
case 'L':
if (!opt_long(arg, &lval)) {
BIO_printf(bio_err,
"%s: Invalid number \"%s\" for -%s\n",
prog, arg, o->name);
return -1;
}
break;
case 'u':
if (!opt_ulong(arg, &uval)) {
if (!opt_ulong(arg, &ulval)) {
BIO_printf(bio_err,
"%s: Invalid number \"%s\" for -%s\n",
prog, arg, o->name);