nghttp2/tests/nghttp2_test_helper.c

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/*
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* nghttp2 - HTTP/2.0 C Library
*
* Copyright (c) 2012 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
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#include "nghttp2_test_helper.h"
#include <assert.h>
#include <CUnit/CUnit.h>
int unpack_frame(nghttp2_frame *frame, const uint8_t *in, size_t len)
{
ssize_t rv = 0;
const uint8_t *payload = in + NGHTTP2_FRAME_HEAD_LENGTH;
size_t payloadlen = len - NGHTTP2_FRAME_HEAD_LENGTH;
size_t payloadoff;
nghttp2_frame_unpack_frame_hd(&frame->hd, in);
switch(frame->hd.type) {
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case NGHTTP2_HEADERS:
payloadoff = ((frame->hd.flags & NGHTTP2_FLAG_PAD_HIGH) > 0) +
((frame->hd.flags & NGHTTP2_FLAG_PAD_LOW) > 0);
rv = nghttp2_frame_unpack_headers_payload
(&frame->headers, payload + payloadoff, payloadlen - payloadoff);
break;
case NGHTTP2_PRIORITY:
nghttp2_frame_unpack_priority_payload
(&frame->priority, payload, payloadlen);
break;
case NGHTTP2_RST_STREAM:
nghttp2_frame_unpack_rst_stream_payload
(&frame->rst_stream, payload, payloadlen);
break;
case NGHTTP2_SETTINGS:
rv = nghttp2_frame_unpack_settings_payload2(&frame->settings.iv,
&frame->settings.niv,
payload, payloadlen);
break;
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case NGHTTP2_PUSH_PROMISE:
rv = nghttp2_frame_unpack_push_promise_payload
(&frame->push_promise, payload, payloadlen);
break;
case NGHTTP2_PING:
nghttp2_frame_unpack_ping_payload
(&frame->ping, payload, payloadlen);
break;
case NGHTTP2_GOAWAY:
nghttp2_frame_unpack_goaway_payload
(&frame->goaway, payload, payloadlen);
break;
case NGHTTP2_WINDOW_UPDATE:
nghttp2_frame_unpack_window_update_payload
(&frame->window_update, payload, payloadlen);
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break;
default:
/* Must not be reachable */
assert(0);
}
return rv;
}
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int strmemeq(const char *a, const uint8_t *b, size_t bn)
{
const uint8_t *c;
if(!a || !b) {
return 0;
}
c = b + bn;
for(; *a && b != c && *a == *b; ++a, ++b);
return !*a && b == c;
}
int nvnameeq(const char *a, nghttp2_nv *nv)
{
return strmemeq(a, nv->name, nv->namelen);
}
int nvvalueeq(const char *a, nghttp2_nv *nv)
{
return strmemeq(a, nv->value, nv->valuelen);
}
void nva_out_init(nva_out *out)
{
memset(out->nva, 0, sizeof(out->nva));
out->nvlen = 0;
}
void nva_out_reset(nva_out *out)
{
size_t i;
for(i = 0; i < out->nvlen; ++i) {
free(out->nva[i].name);
free(out->nva[i].value);
}
memset(out->nva, 0, sizeof(out->nva));
out->nvlen = 0;
}
void add_out(nva_out *out, nghttp2_nv *nv)
{
nghttp2_nv *onv = &out->nva[out->nvlen];
if(nv->namelen) {
onv->name = malloc(nv->namelen);
memcpy(onv->name, nv->name, nv->namelen);
} else {
onv->name = NULL;
}
if(nv->valuelen) {
onv->value = malloc(nv->valuelen);
memcpy(onv->value, nv->value, nv->valuelen);
} else {
onv->value = NULL;
}
onv->namelen = nv->namelen;
onv->valuelen = nv->valuelen;
++out->nvlen;
}
ssize_t inflate_hd(nghttp2_hd_inflater *inflater, nva_out *out,
uint8_t *buf, size_t buflen)
{
ssize_t rv;
nghttp2_nv nv;
int inflate_flags;
size_t initial = buflen;
for(;;) {
inflate_flags = 0;
rv = nghttp2_hd_inflate_hd(inflater, &nv, &inflate_flags, buf, buflen, 1);
if(rv < 0) {
return rv;
}
buf += rv;
buflen -= rv;
if(inflate_flags & NGHTTP2_HD_INFLATE_EMIT) {
add_out(out, &nv);
}
if(inflate_flags & NGHTTP2_HD_INFLATE_FINAL) {
break;
}
}
nghttp2_hd_inflate_end_headers(inflater);
return initial - buflen;
}