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/*
* Pageant client code.
*/
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include "puttymem.h"
#define AGENT_COPYDATA_ID 0x804e50ba /* random goop */
#define AGENT_MAX_MSGLEN 8192
#ifdef TESTMODE
#define debug(x) (printf x)
#else
#define debug(x)
#endif
#define GET_32BIT(cp) \
(((unsigned long)(unsigned char)(cp)[0] << 24) | \
((unsigned long)(unsigned char)(cp)[1] << 16) | \
((unsigned long)(unsigned char)(cp)[2] << 8) | \
((unsigned long)(unsigned char)(cp)[3]))
int agent_exists(void) {
HWND hwnd;
hwnd = FindWindow("Pageant", "Pageant");
if (!hwnd)
return FALSE;
else
return TRUE;
}
void agent_query(void *in, int inlen, void **out, int *outlen) {
HWND hwnd;
char mapname[64];
HANDLE filemap;
unsigned char *p, *ret;
int id, retlen;
COPYDATASTRUCT cds;
*out = NULL;
*outlen = 0;
hwnd = FindWindow("Pageant", "Pageant");
debug(("hwnd is %p\n", hwnd));
if (!hwnd)
return;
sprintf(mapname, "PageantRequest%08x", GetCurrentThreadId());
filemap = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
0, AGENT_MAX_MSGLEN, mapname);
if (!filemap)
return;
p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0);
memcpy(p, in, inlen);
cds.dwData = AGENT_COPYDATA_ID;
cds.cbData = 1+strlen(mapname);
cds.lpData = mapname;
id = SendMessage(hwnd, WM_COPYDATA, (WPARAM)NULL, (LPARAM)&cds);
debug(("return is %d\n", id));
if (id > 0) {
retlen = 4 + GET_32BIT(p);
debug(("len is %d\n", retlen));
ret = smalloc(retlen);
if (ret) {
memcpy(ret, p, retlen);
*out = ret;
*outlen = retlen;
}
}
UnmapViewOfFile(p);
CloseHandle(filemap);
}
#ifdef TESTMODE
int main(void) {
void *msg;
int len;
int i;
agent_query("\0\0\0\1\1", 5, &msg, &len);
debug(("%d:", len));
for (i = 0; i < len; i++)
debug((" %02x", ((unsigned char *)msg)[i]));
debug(("\n"));
return 0;
}
#endif
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