hexo/node_modules/ssh2/util/pagent.c

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2.1 KiB
C
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2023-10-03 11:14:36 +08:00
#include <windows.h>
#include <stdio.h>
#include <fcntl.h>
#define AGENT_COPYDATA_ID 0x804e50ba
#define AGENT_MAX_MSGLEN 8192
#define GET_32BIT_MSB_FIRST(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 GET_32BIT(cp) GET_32BIT_MSB_FIRST(cp)
#define RET_ERR_BADARGS 10
#define RET_ERR_UNAVAILABLE 11
#define RET_ERR_NOMAP 12
#define RET_ERR_BINSTDIN 13
#define RET_ERR_BINSTDOUT 14
#define RET_ERR_BADLEN 15
#define RET_NORESPONSE 1
#define RET_RESPONSE 0
int main (int argc, const char* argv[]) {
HWND hwnd;
char *mapname;
HANDLE filemap;
unsigned char *p, *ret;
int id, retlen, inlen, n, rmode, r = RET_NORESPONSE;
COPYDATASTRUCT cds;
void *in;
if (argc < 2)
return RET_ERR_BADARGS;
hwnd = FindWindow("Pageant", "Pageant");
if (!hwnd)
return RET_ERR_UNAVAILABLE;
rmode = _setmode(_fileno(stdin), _O_BINARY);
if (rmode == -1)
return RET_ERR_BINSTDIN;
rmode = _setmode(_fileno(stdout), _O_BINARY);
if (rmode == -1)
return RET_ERR_BINSTDOUT;
inlen = atoi(argv[1]);
in = malloc(inlen);
n = fread(in, 1, inlen, stdin);
if (n != inlen) {
free(in);
return RET_ERR_BADLEN;
}
mapname = malloc(32);
n = sprintf(mapname, "PageantRequest%08x", (unsigned)GetCurrentThreadId());
filemap = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
0, AGENT_MAX_MSGLEN, mapname);
if (filemap == NULL || filemap == INVALID_HANDLE_VALUE) {
free(in);
free(mapname);
return RET_ERR_NOMAP;
}
p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0);
memcpy(p, in, inlen);
cds.dwData = AGENT_COPYDATA_ID;
cds.cbData = 1 + n;
cds.lpData = mapname;
id = SendMessage(hwnd, WM_COPYDATA, (WPARAM) NULL, (LPARAM) &cds);
if (id > 0) {
r = RET_RESPONSE;
retlen = 4 + GET_32BIT(p);
fwrite(p, 1, retlen, stdout);
}
free(in);
free(mapname);
UnmapViewOfFile(p);
CloseHandle(filemap);
return r;
}