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1 | /* |
2 | * Pageant client code. |
3 | */ |
4 | |
5 | #include <windows.h> |
6 | #include <stdio.h> |
7 | #include <stdlib.h> |
8 | |
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9 | #include "puttymem.h" |
10 | |
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11 | #define AGENT_COPYDATA_ID 0x804e50ba /* random goop */ |
12 | #define AGENT_MAX_MSGLEN 8192 |
13 | |
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14 | #ifdef TESTMODE |
15 | #define debug(x) (printf x) |
16 | #else |
17 | #define debug(x) |
18 | #endif |
19 | |
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20 | #define GET_32BIT(cp) \ |
21 | (((unsigned long)(unsigned char)(cp)[0] << 24) | \ |
22 | ((unsigned long)(unsigned char)(cp)[1] << 16) | \ |
23 | ((unsigned long)(unsigned char)(cp)[2] << 8) | \ |
24 | ((unsigned long)(unsigned char)(cp)[3])) |
25 | |
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26 | int agent_exists(void) { |
27 | HWND hwnd; |
28 | hwnd = FindWindow("Pageant", "Pageant"); |
29 | if (!hwnd) |
30 | return FALSE; |
31 | else |
32 | return TRUE; |
33 | } |
34 | |
35 | void agent_query(void *in, int inlen, void **out, int *outlen) { |
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36 | HWND hwnd; |
37 | char mapname[64]; |
38 | HANDLE filemap; |
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39 | unsigned char *p, *ret; |
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40 | int id, retlen; |
41 | COPYDATASTRUCT cds; |
42 | |
43 | *out = NULL; |
44 | *outlen = 0; |
45 | |
46 | hwnd = FindWindow("Pageant", "Pageant"); |
47 | debug(("hwnd is %p\n", hwnd)); |
48 | if (!hwnd) |
49 | return; |
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50 | sprintf(mapname, "PageantRequest%08x", GetCurrentThreadId()); |
51 | filemap = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, |
52 | 0, AGENT_MAX_MSGLEN, mapname); |
53 | if (!filemap) |
54 | return; |
55 | p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0); |
56 | memcpy(p, in, inlen); |
57 | cds.dwData = AGENT_COPYDATA_ID; |
58 | cds.cbData = 1+strlen(mapname); |
59 | cds.lpData = mapname; |
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60 | id = SendMessage(hwnd, WM_COPYDATA, (WPARAM)NULL, (LPARAM)&cds); |
61 | debug(("return is %d\n", id)); |
62 | if (id > 0) { |
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63 | retlen = 4 + GET_32BIT(p); |
64 | debug(("len is %d\n", retlen)); |
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65 | ret = smalloc(retlen); |
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66 | if (ret) { |
67 | memcpy(ret, p, retlen); |
68 | *out = ret; |
69 | *outlen = retlen; |
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70 | } |
5c58ad2d |
71 | } |
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72 | UnmapViewOfFile(p); |
73 | CloseHandle(filemap); |
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74 | } |
75 | |
76 | #ifdef TESTMODE |
77 | |
78 | int main(void) { |
79 | void *msg; |
80 | int len; |
81 | int i; |
82 | |
83 | agent_query("\0\0\0\1\1", 5, &msg, &len); |
84 | debug(("%d:", len)); |
85 | for (i = 0; i < len; i++) |
86 | debug((" %02x", ((unsigned char *)msg)[i])); |
87 | debug(("\n")); |
88 | return 0; |
89 | } |
90 | |
91 | #endif |