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//
// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "core/nng_impl.h"
#include <stdio.h>
#include <string.h>
int
nni_chkopt_ms(const void *v, size_t sz)
{
nni_duration val;
if (sz != sizeof(val)) {
return (NNG_EINVAL);
}
memcpy(&val, v, sz);
if (val < -1) {
return (NNG_EINVAL);
}
return (0);
}
int
nni_chkopt_int(const void *v, size_t sz, int minv, int maxv)
{
int val;
if (sz != sizeof(val)) {
return (NNG_EINVAL);
}
memcpy(&val, v, sz);
if ((val < minv) || (val > maxv)) {
return (NNG_EINVAL);
}
return (0);
}
int
nni_chkopt_bool(size_t sz)
{
if (sz != sizeof(bool)) {
return (NNG_EINVAL);
}
return (0);
}
int
nni_chkopt_size(const void *v, size_t sz, size_t minv, size_t maxv)
{
size_t val;
if (sz != sizeof(val)) {
return (NNG_EINVAL);
}
memcpy(&val, v, sz);
if ((val < minv) || (val > maxv)) {
return (NNG_EINVAL);
}
return (0);
}
int
nni_setopt_ms(nni_duration *dp, const void *v, size_t sz)
{
nni_duration dur;
if (sz != sizeof(*dp)) {
return (NNG_EINVAL);
}
memcpy(&dur, v, sizeof(dur));
if (dur < -1) {
return (NNG_EINVAL);
}
*dp = dur;
return (0);
}
int
nni_setopt_bool(bool *bp, const void *v, size_t sz)
{
if (sz != sizeof(*bp)) {
return (NNG_EINVAL);
}
memcpy(bp, v, sizeof(*bp));
return (0);
}
int
nni_setopt_int(int *ip, const void *v, size_t sz, int minv, int maxv)
{
int i;
if (sz != sizeof(i)) {
return (NNG_EINVAL);
}
memcpy(&i, v, sizeof(i));
if (i > maxv) {
return (NNG_EINVAL);
}
if (i < minv) {
return (NNG_EINVAL);
}
*ip = i;
return (0);
}
int
nni_setopt_size(size_t *sp, const void *v, size_t sz, size_t minv, size_t maxv)
{
size_t val;
if (sz != sizeof(val)) {
return (NNG_EINVAL);
}
memcpy(&val, v, sizeof(val));
if (val > maxv) {
return (NNG_EINVAL);
}
if (val < minv) {
return (NNG_EINVAL);
}
*sp = val;
return (0);
}
int
nni_setopt_buf(nni_msgq *mq, const void *val, size_t sz)
{
int len;
if (sz < sizeof(len)) {
return (NNG_EINVAL);
}
memcpy(&len, val, sizeof(len));
if (len < 0) {
return (NNG_EINVAL);
}
if (len > 8192) {
// put a reasonable uppper limit on queue depth.
// This is a count in messages, so the total queue
// size could be quite large indeed in this case.
return (NNG_EINVAL);
}
return (nni_msgq_resize(mq, len));
}
int
nni_copyout(const void *src, size_t srcsz, void *dst, size_t *dstszp)
{
int rv = 0;
size_t copysz = *dstszp;
// Assumption is that this is type NNI_TYPE_OPAQUE.
if (copysz > srcsz) {
copysz = srcsz;
} else if (srcsz > copysz) {
// destination too small.
rv = NNG_EINVAL;
}
*dstszp = srcsz;
memcpy(dst, src, copysz);
return (rv);
}
int
nni_copyout_bool(bool b, void *dst, size_t *szp, int typ)
{
switch (typ) {
case NNI_TYPE_BOOL:
NNI_ASSERT(*szp == sizeof(b));
*(bool *) dst = b;
return (0);
case NNI_TYPE_OPAQUE:
return (nni_copyout(&b, sizeof(b), dst, szp));
default:
return (NNG_EBADTYPE);
}
}
int
nni_copyout_int(int i, void *dst, size_t *szp, int typ)
{
switch (typ) {
case NNI_TYPE_INT32:
NNI_ASSERT(*szp == sizeof(i));
*(int *) dst = i;
return (0);
case NNI_TYPE_OPAQUE:
return (nni_copyout(&i, sizeof(i), dst, szp));
default:
return (NNG_EBADTYPE);
}
}
int
nni_copyout_ms(nng_duration d, void *dst, size_t *szp, int typ)
{
switch (typ) {
case NNI_TYPE_DURATION:
NNI_ASSERT(*szp == sizeof(d));
*(nng_duration *) dst = d;
return (0);
case NNI_TYPE_OPAQUE:
return (nni_copyout(&d, sizeof(d), dst, szp));
default:
return (NNG_EBADTYPE);
}
}
int
nni_copyout_ptr(void *p, void *dst, size_t *szp, int typ)
{
switch (typ) {
case NNI_TYPE_POINTER:
NNI_ASSERT(*szp == sizeof(p));
*(void **) dst = p;
return (0);
case NNI_TYPE_OPAQUE:
return (nni_copyout(&p, sizeof(p), dst, szp));
default:
return (NNG_EBADTYPE);
}
}
int
nni_copyout_size(size_t s, void *dst, size_t *szp, int typ)
{
switch (typ) {
case NNI_TYPE_SIZE:
NNI_ASSERT(*szp == sizeof(s));
*(size_t *) dst = s;
return (0);
case NNI_TYPE_OPAQUE:
return (nni_copyout(&s, sizeof(s), dst, szp));
default:
return (NNG_EBADTYPE);
}
}
int
nni_copyout_sockaddr(const nng_sockaddr *sap, void *dst, size_t *szp, int typ)
{
switch (typ) {
case NNI_TYPE_SOCKADDR:
NNI_ASSERT(*szp == sizeof(*sap));
*(nng_sockaddr *) dst = *sap;
return (0);
case NNI_TYPE_OPAQUE:
return (nni_copyout(sap, sizeof(*sap), dst, szp));
default:
return (NNG_EBADTYPE);
}
}
int
nni_copyout_u64(uint64_t u, void *dst, size_t *szp, int typ)
{
switch (typ) {
case NNI_TYPE_UINT64:
NNI_ASSERT(*szp == sizeof(u));
*(uint64_t *) dst = u;
return (0);
case NNI_TYPE_OPAQUE:
return (nni_copyout(&u, sizeof(u), dst, szp));
default:
return (NNG_EBADTYPE);
}
}
int
nni_copyout_str(const char *str, void *dst, size_t *szp, int typ)
{
char *s;
switch (typ) {
case NNI_TYPE_STRING:
NNI_ASSERT(*szp == sizeof(char *));
if ((s = nni_strdup(str)) == NULL) {
return (NNG_ENOMEM);
}
*(char **) dst = s;
return (0);
case NNI_TYPE_OPAQUE:
return (nni_copyout(str, strlen(str) + 1, dst, szp));
default:
return (NNG_EBADTYPE);
}
}
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