static DWORD WINAPI
spinoff(HANDLE in, HANDLE out, char *args, char *cmd, Envy *e)
{
char args2[8192], path[MAX_PATH], *s, *eb;
STARTUPINFO si;
PROCESS_INFORMATION pi;
Symtab *sym;
/* set up the full path of the shell */
sym = symlook("MKSH", S_VAR, 0);
if(sym) {
strncpy(path, ((Word*)(sym->value))->s, sizeof(path));
path[MAX_PATH-1] = 0;
} else {
sym = symlook("ROOT", S_VAR, 0);
if(sym)
rootdir = ((Word*)(sym->value))->s;
snprint(path, sizeof(path), "%s\\%s", rootdir, shell);
}
/* convert to backslash notation */
for(s = strchr(path,'/'); s; s = strchr(s+1, '/'))
*s = '\\';
s = args2;
s += snprint(args2, sizeof(args2)-1, "%s", path);
if(shflags)
s += snprint(s, args2+sizeof(args2)-s-1, " %s", shflags);
if(args)
s += snprint(s, args2+sizeof(args2)-s-1, " %s", args);
if(cmd)
s += snprint(s, args2+sizeof(args2)-s-1, " \"%s\"", cmd);
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
si.dwFlags = STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES;
si.wShowWindow = SW_SHOW;
if (e)
eb = exportenv(e);
else
eb = 0;
si.hStdInput = duphandle(in);
si.hStdOutput = duphandle(out);
si.hStdError = duphandle(GetStdHandle(STD_ERROR_HANDLE));
if(CreateProcess(path, args2, 0, 0, 1, 0, eb, 0, &si, &pi) == FALSE) {
perror("can't find shell");
Exit();
}
free(eb);
CloseHandle(si.hStdInput);
CloseHandle(si.hStdOutput);
CloseHandle(si.hStdError);
childadd(pi.hProcess, pi.dwProcessId);
return pi.dwProcessId;
}
static int push_promise(struct SessionHandle *data,
struct connectdata *conn,
const nghttp2_push_promise *frame)
{
int rv;
DEBUGF(infof(data, "PUSH_PROMISE received, stream %u!\n",
frame->promised_stream_id));
if(data->multi->push_cb) {
struct HTTP *stream;
struct curl_pushheaders heads;
CURLMcode rc;
struct http_conn *httpc;
size_t i;
/* clone the parent */
CURL *newhandle = duphandle(data);
if(!newhandle) {
infof(data, "failed to duplicate handle\n");
rv = 1; /* FAIL HARD */
goto fail;
}
heads.data = data;
heads.frame = frame;
/* ask the application */
DEBUGF(infof(data, "Got PUSH_PROMISE, ask application!\n"));
stream = data->req.protop;
if(!stream) {
failf(data, "Internal NULL stream!\n");
rv = 1;
goto fail;
}
rv = data->multi->push_cb(data, newhandle,
stream->push_headers_used, &heads,
data->multi->push_userp);
/* free the headers again */
for(i=0; i<stream->push_headers_used; i++)
free(stream->push_headers[i]);
free(stream->push_headers);
stream->push_headers = NULL;
if(rv) {
/* denied, kill off the new handle again */
(void)Curl_close(newhandle);
goto fail;
}
/* approved, add to the multi handle and immediately switch to PERFORM
state with the given connection !*/
rc = Curl_multi_add_perform(data->multi, newhandle, conn);
if(rc) {
infof(data, "failed to add handle to multi\n");
Curl_close(newhandle);
rv = 1;
goto fail;
}
httpc = &conn->proto.httpc;
nghttp2_session_set_stream_user_data(httpc->h2,
frame->promised_stream_id, newhandle);
}
else {
DEBUGF(infof(data, "Got PUSH_PROMISE, ignore it!\n"));
rv = 1;
}
fail:
return rv;
}
