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msocsample.c
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msocsample.c
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/**
@file
@brief MS Office Crypt DLL sample
@author herumi
Copyright (C) 2016 Cybozu Labs, Inc., all rights reserved.
*/
#include "msoc.h"
#include <stdio.h>
void usage()
{
const char *s =
"how to use\n"
"msocsample.exe enc <inFile> <outFile> <pass>\n"
"msocsample.exe dec <inFile> <outFile> <pass>\n"
"msocsample.exe opt <inFile> <pass>\n"
"msocsample.exe enc-sec <inFile> <outFile> <pass> <secretKey> [<spinCount>]\n"
"msocsample.exe dec-sec <inFile> <outFile> <secretKey>\n";
printf("%s", s);
exit(1);
}
/*
assume w[i] is ascii code
*/
void wchar2ascii(char *s, size_t maxSize, const wchar_t *w)
{
size_t i;
for (i = 0; i < maxSize; i++) {
wchar_t c = w[i];
s[i] = (char)c;
if (s[i] != c) {
printf("not ascii %04x\n", c);
exit(1);
}
if (s[i] == '\0') return;
}
puts("too long w");
exit(1);
}
int wmain(int argc, wchar_t **argv)
{
int err = 0;
const wchar_t *inFile = NULL;
const wchar_t *outFile = NULL;
struct msoc_opt *opt = NULL;
int spinCount;
char secretKey[256];
argc--, argv++;
if (argc < 3) {
usage();
}
if (wcscmp(argv[0], L"enc") == 0) {
if (argc != 4) {
usage();
}
printf("enc in=%S, out=%S\n", argv[1], argv[2]);
err = MSOC_encrypt(argv[2], argv[1], argv[3], NULL);
} else
if (wcscmp(argv[0], L"dec") == 0) {
if (argc != 4) {
usage();
}
printf("dec in=%S, out=%S, pass=%S\n", argv[1], argv[2], argv[3]);
err = MSOC_decrypt(argv[2], argv[1], argv[3], NULL);
} else
if (wcscmp(argv[0], L"opt") == 0) {
if (argc != 3) {
usage();
}
printf("opt in=%S, pass=%S\n", argv[1], argv[2]);
opt = MSOC_createOpt();
if (opt == NULL) {
puts("ERR MSOC_createOpt");
return 1;
}
err = MSOC_decrypt(NULL, argv[1], argv[2], opt);
if (err != MSOC_NOERR) goto EXIT;
err = MSOC_getInt(&spinCount, opt, MSOC_OPT_TYPE_SPIN_COUNT);
if (err != MSOC_NOERR) goto EXIT;
err = MSOC_getStr(secretKey, sizeof(secretKey), opt, MSOC_OPT_TYPE_SECRET_KEY);
if (err != MSOC_NOERR) goto EXIT;
printf("spinCout=%d\n", spinCount);
printf("secretKey=%s\n", secretKey);
} else
if (wcscmp(argv[0], L"enc-sec") == 0) {
if (argc != 5 && argc != 6) {
usage();
}
printf("enc-sec in=%S, out=%S, pass=%S, secretKey=%S\n", argv[1], argv[2], argv[3], argv[4]);
wchar2ascii(secretKey, sizeof(secretKey), argv[4]);
opt = MSOC_createOpt();
if (opt == NULL) {
puts("ERR MSOC_createOpt");
return 1;
}
err = MSOC_setStr(opt, MSOC_OPT_TYPE_SECRET_KEY, secretKey);
if (err != MSOC_NOERR) goto EXIT;
if (argc == 6) {
int spinCount = _wtoi(argv[5]);
printf("spinCount=%d\n", spinCount);
err = MSOC_setInt(opt, MSOC_OPT_TYPE_SPIN_COUNT, spinCount);
if (err != MSOC_NOERR) goto EXIT;
}
err = MSOC_encrypt(argv[2], argv[1], argv[3], opt);
} else
if (wcscmp(argv[0], L"dec-sec") == 0) {
if (argc != 4) {
usage();
}
printf("dec-sec in=%S, out=%S, secretKey=%S\n", argv[1], argv[2], argv[3]);
wchar2ascii(secretKey, sizeof(secretKey), argv[3]);
opt = MSOC_createOpt();
if (opt == NULL) {
puts("ERR MSOC_createOpt");
return 1;
}
err = MSOC_setStr(opt, MSOC_OPT_TYPE_SECRET_KEY, secretKey);
if (err != MSOC_NOERR) goto EXIT;
err = MSOC_decrypt(argv[2], argv[1], NULL, opt);
} else
{
usage();
}
EXIT:
MSOC_destroyOpt(opt);
if (err != MSOC_NOERR) {
printf("ERR %s\n", MSOC_getErrMessage(err));
return 1;
} else {
puts("ok");
}
return 0;
}