github
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putty
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putty/pageant.c

888 строки
26 KiB
C
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/*
* Pageant: the PuTTY Authentication Agent.
*/
#include <windows.h>
#ifndef NO_SECURITY
#include <aclapi.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "ssh.h"
#include "tree234.h"
#define IDI_MAINICON 200
#define IDI_TRAYICON 201
#define WM_XUSER (WM_USER + 0x2000)
#define WM_SYSTRAY (WM_XUSER + 6)
#define WM_SYSTRAY2 (WM_XUSER + 7)
#define AGENT_COPYDATA_ID 0x804e50ba /* random goop */
/*
* FIXME: maybe some day we can sort this out ...
*/
#define AGENT_MAX_MSGLEN 8192
#define IDM_CLOSE 0x0010
#define IDM_VIEWKEYS 0x0020
#define IDM_ADDKEY 0x0030
#define IDM_ABOUT 0x0040
#define APPNAME "Pageant"
#define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1
#define SSH_AGENT_RSA_IDENTITIES_ANSWER 2
#define SSH_AGENTC_RSA_CHALLENGE 3
#define SSH_AGENT_RSA_RESPONSE 4
#define SSH_AGENT_FAILURE 5
#define SSH_AGENT_SUCCESS 6
#define SSH_AGENTC_ADD_RSA_IDENTITY 7
#define SSH_AGENTC_REMOVE_RSA_IDENTITY 8
extern char ver[];
static HINSTANCE instance;
static HWND hwnd;
static HWND keylist;
static HWND aboutbox;
static HMENU systray_menu;
static tree234 *rsakeys;
static int has_security;
#ifndef NO_SECURITY
typedef DWORD (WINAPI *gsi_fn_t)
(HANDLE, SE_OBJECT_TYPE, SECURITY_INFORMATION,
PSID *, PSID *, PACL *, PACL *,
PSECURITY_DESCRIPTOR *);
static gsi_fn_t getsecurityinfo;
#endif
/*
* We need this to link with the RSA code, because rsaencrypt()
* pads its data with random bytes. Since we only use rsadecrypt(),
* which is deterministic, this should never be called.
*
* If it _is_ called, there is a _serious_ problem, because it
* won't generate true random numbers. So we must scream, panic,
* and exit immediately if that should happen.
*/
int random_byte(void) {
MessageBox(hwnd, "Internal Error", APPNAME, MB_OK | MB_ICONERROR);
exit(0);
}
/*
* This function is needed to link with the DES code. We need not
* have it do anything at all.
*/
void logevent(char *msg) {
}
#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]))
#define PUT_32BIT(cp, value) { \
(cp)[0] = (unsigned char)((value) >> 24); \
(cp)[1] = (unsigned char)((value) >> 16); \
(cp)[2] = (unsigned char)((value) >> 8); \
(cp)[3] = (unsigned char)(value); }
#define PASSPHRASE_MAXLEN 512
struct PassphraseProcStruct {
char *passphrase;
char *comment;
};
/*
* Dialog-box function for the Licence box.
*/
static int CALLBACK LicenceProc (HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
switch (msg) {
case WM_INITDIALOG:
return 1;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDOK:
EndDialog(hwnd, 1);
return 0;
}
return 0;
case WM_CLOSE:
EndDialog(hwnd, 1);
return 0;
}
return 0;
}
/*
* Dialog-box function for the About box.
*/
static int CALLBACK AboutProc (HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
switch (msg) {
case WM_INITDIALOG:
SetDlgItemText (hwnd, 100, ver);
return 1;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDOK:
aboutbox = NULL;
DestroyWindow (hwnd);
return 0;
case 101:
EnableWindow(hwnd, 0);
DialogBox (instance, MAKEINTRESOURCE(214), NULL, LicenceProc);
EnableWindow(hwnd, 1);
SetActiveWindow(hwnd);
return 0;
}
return 0;
case WM_CLOSE:
aboutbox = NULL;
DestroyWindow (hwnd);
return 0;
}
return 0;
}
/*
* Dialog-box function for the passphrase box.
*/
static int CALLBACK PassphraseProc(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
static char *passphrase;
struct PassphraseProcStruct *p;
switch (msg) {
case WM_INITDIALOG:
SetForegroundWindow(hwnd);
SetWindowPos (hwnd, HWND_TOP, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
p = (struct PassphraseProcStruct *)lParam;
passphrase = p->passphrase;
if (p->comment)
SetDlgItemText(hwnd, 101, p->comment);
*passphrase = 0;
return 0;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDOK:
if (*passphrase)
EndDialog (hwnd, 1);
else
MessageBeep (0);
return 0;
case IDCANCEL:
EndDialog (hwnd, 0);
return 0;
case 102: /* edit box */
if (HIWORD(wParam) == EN_CHANGE) {
GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1);
passphrase[PASSPHRASE_MAXLEN-1] = '\0';
}
return 0;
}
return 0;
case WM_CLOSE:
EndDialog (hwnd, 0);
return 0;
}
return 0;
}
/*
* Update the visible key list.
*/
static void keylist_update(void) {
struct RSAKey *key;
enum234 e;
if (keylist) {
SendDlgItemMessage(keylist, 100, LB_RESETCONTENT, 0, 0);
for (key = first234(rsakeys, &e); key; key = next234(&e)) {
char listentry[512], *p;
/*
* Replace two spaces in the fingerprint with tabs, for
* nice alignment in the box.
*/
rsa_fingerprint(listentry, sizeof(listentry), key);
p = strchr(listentry, ' '); if (p) *p = '\t';
p = strchr(listentry, ' '); if (p) *p = '\t';
SendDlgItemMessage (keylist, 100, LB_ADDSTRING,
0, (LPARAM)listentry);
}
SendDlgItemMessage (keylist, 100, LB_SETCURSEL, (WPARAM) -1, 0);
}
}
/*
* This function loads a key from a file and adds it.
*/
static void add_keyfile(char *filename) {
char passphrase[PASSPHRASE_MAXLEN];
struct RSAKey *key;
int needs_pass;
int ret;
int attempts;
char *comment;
struct PassphraseProcStruct pps;
needs_pass = rsakey_encrypted(filename, &comment);
attempts = 0;
key = malloc(sizeof(*key));
pps.passphrase = passphrase;
pps.comment = comment;
do {
if (needs_pass) {
int dlgret;
dlgret = DialogBoxParam(instance, MAKEINTRESOURCE(210),
NULL, PassphraseProc,
(LPARAM)&pps);
if (!dlgret) {
if (comment) free(comment);
free(key);
return; /* operation cancelled */
}
} else
*passphrase = '\0';
ret = loadrsakey(filename, key, NULL, passphrase);
attempts++;
} while (ret == -1);
if (comment) free(comment);
if (ret == 0) {
MessageBox(NULL, "Couldn't load private key.", APPNAME,
MB_OK | MB_ICONERROR);
free(key);
return;
}
if (add234(rsakeys, key) != key)
free(key); /* already present, don't waste RAM */
}
/*
* This is the main agent function that answers messages.
*/
static void answer_msg(void *msg) {
unsigned char *p = msg;
unsigned char *ret = msg;
int type;
/*
* Get the message type.
*/
type = p[4];
p += 5;
switch (type) {
case SSH_AGENTC_REQUEST_RSA_IDENTITIES:
/*
* Reply with SSH_AGENT_RSA_IDENTITIES_ANSWER.
*/
{
enum234 e;
struct RSAKey *key;
int len, nkeys;
/*
* Count up the number and length of keys we hold.
*/
len = nkeys = 0;
for (key = first234(rsakeys, &e); key; key = next234(&e)) {
nkeys++;
len += 4; /* length field */
len += ssh1_bignum_length(key->exponent);
len += ssh1_bignum_length(key->modulus);
len += 4 + strlen(key->comment);
}
/*
* Packet header is the obvious five bytes, plus four
* bytes for the key count.
*/
len += 5 + 4;
if (len > AGENT_MAX_MSGLEN)
goto failure; /* aaargh! too much stuff! */
PUT_32BIT(ret, len-4);
ret[4] = SSH_AGENT_RSA_IDENTITIES_ANSWER;
PUT_32BIT(ret+5, nkeys);
p = ret + 5 + 4;
for (key = first234(rsakeys, &e); key; key = next234(&e)) {
PUT_32BIT(p, ssh1_bignum_bitcount(key->modulus));
p += 4;
p += ssh1_write_bignum(p, key->exponent);
p += ssh1_write_bignum(p, key->modulus);
PUT_32BIT(p, strlen(key->comment));
memcpy(p+4, key->comment, strlen(key->comment));
p += 4 + strlen(key->comment);
}
}
break;
case SSH_AGENTC_RSA_CHALLENGE:
/*
* Reply with either SSH_AGENT_RSA_RESPONSE or
* SSH_AGENT_FAILURE, depending on whether we have that key
* or not.
*/
{
struct RSAKey reqkey, *key;
Bignum challenge, response;
unsigned char response_source[48], response_md5[16];
struct MD5Context md5c;
int i, len;
p += 4;
p += ssh1_read_bignum(p, &reqkey.exponent);
p += ssh1_read_bignum(p, &reqkey.modulus);
p += ssh1_read_bignum(p, &challenge);
memcpy(response_source+32, p, 16); p += 16;
if (GET_32BIT(p) != 1 ||
(key = find234(rsakeys, &reqkey, NULL)) == NULL) {
freebn(reqkey.exponent);
freebn(reqkey.modulus);
freebn(challenge);
goto failure;
}
response = rsadecrypt(challenge, key);
for (i = 0; i < 32; i++)
response_source[i] = bignum_byte(response, 31-i);
MD5Init(&md5c);
MD5Update(&md5c, response_source, 48);
MD5Final(response_md5, &md5c);
memset(response_source, 0, 48); /* burn the evidence */
freebn(response); /* and that evidence */
freebn(challenge); /* yes, and that evidence */
freebn(reqkey.exponent); /* and free some memory ... */
freebn(reqkey.modulus); /* ... while we're at it. */
/*
* Packet is the obvious five byte header, plus sixteen
* bytes of MD5.
*/
len = 5 + 16;
PUT_32BIT(ret, len-4);
ret[4] = SSH_AGENT_RSA_RESPONSE;
memcpy(ret+5, response_md5, 16);
}
break;
case SSH_AGENTC_ADD_RSA_IDENTITY:
/*
* Add to the list and return SSH_AGENT_SUCCESS, or
* SSH_AGENT_FAILURE if the key was malformed.
*/
{
struct RSAKey *key;
char *comment;
key = malloc(sizeof(struct RSAKey));
memset(key, 0, sizeof(key));
p += makekey(p, key, NULL, 1);
p += makeprivate(p, key);
p += ssh1_read_bignum(p, NULL); /* p^-1 mod q */
p += ssh1_read_bignum(p, NULL); /* p */
p += ssh1_read_bignum(p, NULL); /* q */
comment = malloc(GET_32BIT(p));
if (comment) {
memcpy(comment, p+4, GET_32BIT(p));
key->comment = comment;
}
PUT_32BIT(ret, 1);
ret[4] = SSH_AGENT_FAILURE;
if (add234(rsakeys, key) == key) {
keylist_update();
ret[4] = SSH_AGENT_SUCCESS;
} else {
freersakey(key);
free(key);
}
}
break;
case SSH_AGENTC_REMOVE_RSA_IDENTITY:
/*
* Remove from the list and return SSH_AGENT_SUCCESS, or
* perhaps SSH_AGENT_FAILURE if it wasn't in the list to
* start with.
*/
{
struct RSAKey reqkey, *key;
p += makekey(p, &reqkey, NULL, 0);
key = find234(rsakeys, &reqkey, NULL);
freebn(reqkey.exponent);
freebn(reqkey.modulus);
PUT_32BIT(ret, 1);
ret[4] = SSH_AGENT_FAILURE;
if (key) {
del234(rsakeys, key);
keylist_update();
freersakey(key);
ret[4] = SSH_AGENT_SUCCESS;
}
}
break;
default:
failure:
/*
* Unrecognised message. Return SSH_AGENT_FAILURE.
*/
PUT_32BIT(ret, 1);
ret[4] = SSH_AGENT_FAILURE;
break;
}
}
/*
* Key comparison function for the 2-3-4 tree of RSA keys.
*/
static int cmpkeys(void *av, void *bv) {
struct RSAKey *a = (struct RSAKey *)av;
struct RSAKey *b = (struct RSAKey *)bv;
Bignum am, bm;
int alen, blen;
am = a->modulus;
bm = b->modulus;
/*
* Compare by length of moduli.
*/
alen = ssh1_bignum_bitcount(am);
blen = ssh1_bignum_bitcount(bm);
if (alen > blen) return +1; else if (alen < blen) return -1;
/*
* Now compare by moduli themselves.
*/
alen = (alen + 7) / 8; /* byte count */
while (alen-- > 0) {
int abyte, bbyte;
abyte = bignum_byte(am, alen);
bbyte = bignum_byte(bm, alen);
if (abyte > bbyte) return +1; else if (abyte < bbyte) return -1;
}
/*
* Give up.
*/
return 0;
}
static void error(char *s) {
MessageBox(hwnd, s, APPNAME, MB_OK | MB_ICONERROR);
}
/*
* Prompt for a key file to add, and add it.
*/
static void prompt_add_keyfile(void) {
OPENFILENAME of;
char filename[FILENAME_MAX];
memset(&of, 0, sizeof(of));
#ifdef OPENFILENAME_SIZE_VERSION_400
of.lStructSize = OPENFILENAME_SIZE_VERSION_400;
#else
of.lStructSize = sizeof(of);
#endif
of.hwndOwner = hwnd;
of.lpstrFilter = "All Files\0*\0\0\0";
of.lpstrCustomFilter = NULL;
of.nFilterIndex = 1;
of.lpstrFile = filename; *filename = '\0';
of.nMaxFile = sizeof(filename);
of.lpstrFileTitle = NULL;
of.lpstrInitialDir = NULL;
of.lpstrTitle = "Select Private Key File";
of.Flags = 0;
if (GetOpenFileName(&of)) {
add_keyfile(filename);
keylist_update();
}
}
/*
* Dialog-box function for the key list box.
*/
static int CALLBACK KeyListProc(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
enum234 e;
struct RSAKey *key;
switch (msg) {
case WM_INITDIALOG:
keylist = hwnd;
{
static int tabs[2] = {25, 175};
SendDlgItemMessage (hwnd, 100, LB_SETTABSTOPS, 2,
(LPARAM) tabs);
}
keylist_update();
return 0;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDOK:
case IDCANCEL:
keylist = NULL;
DestroyWindow(hwnd);
return 0;
case 101: /* add key */
if (HIWORD(wParam) == BN_CLICKED ||
HIWORD(wParam) == BN_DOUBLECLICKED) {
prompt_add_keyfile();
}
return 0;
case 102: /* remove key */
if (HIWORD(wParam) == BN_CLICKED ||
HIWORD(wParam) == BN_DOUBLECLICKED) {
int n = SendDlgItemMessage (hwnd, 100, LB_GETCURSEL, 0, 0);
if (n == LB_ERR) {
MessageBeep(0);
break;
}
for (key = first234(rsakeys, &e); key; key = next234(&e))
if (n-- == 0)
break;
del234(rsakeys, key);
freersakey(key); free(key);
keylist_update();
}
return 0;
}
return 0;
case WM_CLOSE:
keylist = NULL;
DestroyWindow(hwnd);
return 0;
}
return 0;
}
static LRESULT CALLBACK WndProc (HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam) {
int ret;
static int menuinprogress;
switch (message) {
case WM_SYSTRAY:
if (lParam == WM_RBUTTONUP) {
POINT cursorpos;
GetCursorPos(&cursorpos);
PostMessage(hwnd, WM_SYSTRAY2, cursorpos.x, cursorpos.y);
} else if (lParam == WM_LBUTTONDBLCLK) {
/* Equivalent to IDM_VIEWKEYS. */
PostMessage(hwnd, WM_COMMAND, IDM_VIEWKEYS, 0);
}
break;
case WM_SYSTRAY2:
if (!menuinprogress) {
menuinprogress = 1;
SetForegroundWindow(hwnd);
ret = TrackPopupMenu(systray_menu,
TPM_RIGHTALIGN | TPM_BOTTOMALIGN |
TPM_RIGHTBUTTON,
wParam, lParam, 0, hwnd, NULL);
menuinprogress = 0;
}
break;
case WM_COMMAND:
case WM_SYSCOMMAND:
switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */
case IDM_CLOSE:
SendMessage(hwnd, WM_CLOSE, 0, 0);
break;
case IDM_VIEWKEYS:
if (!keylist) {
keylist = CreateDialog (instance, MAKEINTRESOURCE(211),
NULL, KeyListProc);
ShowWindow (keylist, SW_SHOWNORMAL);
/*
* Sometimes the window comes up minimised / hidden
* for no obvious reason. Prevent this.
*/
SetForegroundWindow(keylist);
SetWindowPos (keylist, HWND_TOP, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
}
break;
case IDM_ADDKEY:
prompt_add_keyfile();
break;
case IDM_ABOUT:
if (!aboutbox) {
aboutbox = CreateDialog (instance, MAKEINTRESOURCE(213),
NULL, AboutProc);
ShowWindow (aboutbox, SW_SHOWNORMAL);
/*
* Sometimes the window comes up minimised / hidden
* for no obvious reason. Prevent this.
*/
SetForegroundWindow(aboutbox);
SetWindowPos (aboutbox, HWND_TOP, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
}
break;
}
break;
case WM_DESTROY:
PostQuitMessage (0);
return 0;
case WM_COPYDATA:
{
COPYDATASTRUCT *cds;
char *mapname;
void *p;
HANDLE filemap, proc;
PSID mapowner, procowner;
PSECURITY_DESCRIPTOR psd1 = NULL, psd2 = NULL;
int ret = 0;
cds = (COPYDATASTRUCT *)lParam;
if (cds->dwData != AGENT_COPYDATA_ID)
return 0; /* not our message, mate */
mapname = (char *)cds->lpData;
if (mapname[cds->cbData - 1] != '\0')
return 0; /* failure to be ASCIZ! */
#ifdef DEBUG_IPC
debug(("mapname is :%s:\r\n", mapname));
#endif
filemap = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, mapname);
#ifdef DEBUG_IPC
debug(("filemap is %p\r\n", filemap));
#endif
if (filemap != NULL && filemap != INVALID_HANDLE_VALUE) {
int rc;
#ifndef NO_SECURITY
if (has_security) {
if ((proc = OpenProcess(MAXIMUM_ALLOWED, FALSE,
GetCurrentProcessId())) == NULL) {
#ifdef DEBUG_IPC
debug(("couldn't get handle for process\r\n"));
#endif
return 0;
}
if (getsecurityinfo(proc, SE_KERNEL_OBJECT,
OWNER_SECURITY_INFORMATION,
&procowner, NULL, NULL, NULL,
&psd2) != ERROR_SUCCESS) {
#ifdef DEBUG_IPC
debug(("couldn't get owner info for process\r\n"));
#endif
CloseHandle(proc);
return 0; /* unable to get security info */
}
CloseHandle(proc);
if ((rc = getsecurityinfo(filemap, SE_KERNEL_OBJECT,
OWNER_SECURITY_INFORMATION,
&mapowner, NULL, NULL, NULL,
&psd1) != ERROR_SUCCESS)) {
#ifdef DEBUG_IPC
debug(("couldn't get owner info for filemap: %d\r\n", rc));
#endif
return 0;
}
#ifdef DEBUG_IPC
debug(("got security stuff\r\n"));
#endif
if (!EqualSid(mapowner, procowner))
return 0; /* security ID mismatch! */
#ifdef DEBUG_IPC
debug(("security stuff matched\r\n"));
#endif
LocalFree(psd1);
LocalFree(psd2);
} else {
#ifdef DEBUG_IPC
debug(("security APIs not present\r\n"));
#endif
}
#endif
p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0);
#ifdef DEBUG_IPC
debug(("p is %p\r\n", p));
{int i; for(i=0;i<5;i++)debug(("p[%d]=%02x\r\n", i, ((unsigned char *)p)[i]));}
#endif
answer_msg(p);
ret = 1;
UnmapViewOfFile(p);
}
CloseHandle(filemap);
return ret;
}
}
return DefWindowProc (hwnd, message, wParam, lParam);
}
int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) {
WNDCLASS wndclass;
MSG msg;
OSVERSIONINFO osi;
HMODULE advapi;
/*
* Determine whether we're an NT system (should have security
* APIs) or a non-NT system (don't do security).
*/
memset(&osi, 0, sizeof(OSVERSIONINFO));
osi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (GetVersionEx(&osi) && osi.dwPlatformId==VER_PLATFORM_WIN32_NT) {
has_security = TRUE;
} else
has_security = FALSE;
if (has_security) {
#ifndef NO_SECURITY
/*
* Attempt to ge the security API we need.
*/
advapi = LoadLibrary("ADVAPI32.DLL");
getsecurityinfo = (gsi_fn_t)GetProcAddress(advapi, "GetSecurityInfo");
if (!getsecurityinfo) {
MessageBox(NULL,
"Unable to access security APIs. Pageant will\n"
"not run, in case it causes a security breach.",
"Pageant Fatal Error", MB_ICONERROR | MB_OK);
return 1;
}
#else
MessageBox(NULL,
"This program has been compiled for Win9X and will\n"
"not run on NT, in case it causes a security breach.",
"Pageant Fatal Error", MB_ICONERROR | MB_OK);
return 1;
#endif
} else
advapi = NULL;
/*
* First bomb out totally if we are already running.
*/
if (FindWindow("Pageant", "Pageant")) {
MessageBox(NULL, "Pageant is already running", "Pageant Error",
MB_ICONERROR | MB_OK);
if (advapi) FreeLibrary(advapi);
return 0;
}
instance = inst;
if (!prev) {
wndclass.style = 0;
wndclass.lpfnWndProc = WndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = inst;
wndclass.hIcon = LoadIcon (inst,
MAKEINTRESOURCE(IDI_MAINICON));
wndclass.hCursor = LoadCursor (NULL, IDC_IBEAM);
wndclass.hbrBackground = GetStockObject (BLACK_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = APPNAME;
RegisterClass (&wndclass);
}
hwnd = keylist = NULL;
hwnd = CreateWindow (APPNAME, APPNAME,
WS_OVERLAPPEDWINDOW | WS_VSCROLL,
CW_USEDEFAULT, CW_USEDEFAULT,
100, 100, NULL, NULL, inst, NULL);
/* Set up a system tray icon */
{
BOOL res;
NOTIFYICONDATA tnid;
HICON hicon;
#ifdef NIM_SETVERSION
tnid.uVersion = 0;
res = Shell_NotifyIcon(NIM_SETVERSION, &tnid);
#endif
tnid.cbSize = sizeof(NOTIFYICONDATA);
tnid.hWnd = hwnd;
tnid.uID = 1; /* unique within this systray use */
tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
tnid.uCallbackMessage = WM_SYSTRAY;
tnid.hIcon = hicon = LoadIcon (instance, MAKEINTRESOURCE(201));
strcpy(tnid.szTip, "Pageant (PuTTY authentication agent)");
res = Shell_NotifyIcon(NIM_ADD, &tnid);
if (hicon)
DestroyIcon(hicon);
systray_menu = CreatePopupMenu();
/* accelerators used: vkxa */
AppendMenu (systray_menu, MF_ENABLED, IDM_VIEWKEYS, "&View Keys");
AppendMenu (systray_menu, MF_ENABLED, IDM_ADDKEY, "Add &Key");
AppendMenu (systray_menu, MF_ENABLED, IDM_ABOUT, "&About");
AppendMenu (systray_menu, MF_ENABLED, IDM_CLOSE, "E&xit");
}
ShowWindow (hwnd, SW_HIDE);
/*
* Initialise storage for RSA keys.
*/
rsakeys = newtree234(cmpkeys);
/*
* Process the command line and add RSA keys as listed on it.
*/
{
char *p;
int inquotes = 0;
p = cmdline;
while (*p) {
while (*p && isspace(*p)) p++;
if (*p && !isspace(*p)) {
char *q = p, *pp = p;
while (*p && (inquotes || !isspace(*p)))
{
if (*p == '"') {
inquotes = !inquotes;
p++;
continue;
}
*pp++ = *p++;
}
if (*pp) {
if (*p) p++;
*pp++ = '\0';
}
add_keyfile(q);
}
}
}
/*
* Main message loop.
*/
while (GetMessage(&msg, NULL, 0, 0) == 1) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
/* Clean up the system tray icon */
{
NOTIFYICONDATA tnid;
tnid.cbSize = sizeof(NOTIFYICONDATA);
tnid.hWnd = hwnd;
tnid.uID = 1;
Shell_NotifyIcon(NIM_DELETE, &tnid);
DestroyMenu(systray_menu);
}
if (advapi) FreeLibrary(advapi);
exit(msg.wParam);
}
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