ssize_t nghttp2_nv_array_from_cstr(nghttp2_nv **nva_ptr, const char **nv)
{
int i;
uint8_t *data;
size_t buflen = 0, nvlen = 0;
nghttp2_nv *p;
for(i = 0; nv[i]; ++i) {
size_t len = strlen(nv[i]);
if(len > NGHTTP2_MAX_HD_VALUE_LENGTH) {
return NGHTTP2_ERR_INVALID_ARGUMENT;
}
buflen += len;
}
nvlen = i/2;
/* If all name/value pair is 0-length, remove them */
if(nvlen == 0 || buflen == 0) {
*nva_ptr = NULL;
return 0;
}
buflen += sizeof(nghttp2_nv)*nvlen;
*nva_ptr = malloc(buflen);
if(*nva_ptr == NULL) {
return NGHTTP2_ERR_NOMEM;
}
p = *nva_ptr;
data = (uint8_t*)(*nva_ptr) + sizeof(nghttp2_nv)*nvlen;
for(i = 0; nv[i]; i += 2) {
size_t len = strlen(nv[i]);
memcpy(data, nv[i], len);
p->name = data;
p->namelen = len;
nghttp2_downcase(p->name, p->namelen);
data += len;
len = strlen(nv[i+1]);
memcpy(data, nv[i+1], len);
p->value = data;
p->valuelen = len;
data += len;
++p;
}
nghttp2_nv_array_sort(*nva_ptr, nvlen);
return nvlen;
}
ssize_t nghttp2_nv_array_copy(nghttp2_nv **nva_ptr,
const nghttp2_nv *nva, size_t nvlen)
{
size_t i;
uint8_t *data;
size_t buflen = 0;
nghttp2_nv *p;
for(i = 0; i < nvlen; ++i) {
buflen += nva[i].namelen + nva[i].valuelen;
}
/* If all name/value pair is 0-length, remove them */
if(nvlen == 0 || buflen == 0) {
*nva_ptr = NULL;
return 0;
}
buflen += sizeof(nghttp2_nv)*nvlen;
*nva_ptr = malloc(buflen);
if(*nva_ptr == NULL) {
return NGHTTP2_ERR_NOMEM;
}
p = *nva_ptr;
data = (uint8_t*)(*nva_ptr) + sizeof(nghttp2_nv)*nvlen;
for(i = 0; i < nvlen; ++i) {
memcpy(data, nva[i].name, nva[i].namelen);
p->name = data;
p->namelen = nva[i].namelen;
nghttp2_downcase(p->name, p->namelen);
data += nva[i].namelen;
memcpy(data, nva[i].value, nva[i].valuelen);
p->value = data;
p->valuelen = nva[i].valuelen;
data += nva[i].valuelen;
++p;
}
return nvlen;
}