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extern account_t *accounts; |
extern account_t *accounts; |
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#ifdef ENCRYPTED_PASSWORDS |
#ifdef ENCRYPTED_PASSWORDS |
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extern char passphr[PASSPHRASE_LEN]; |
extern char *passphr; |
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#endif |
#endif |
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/* |
/* |
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{ |
{ |
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char *c; |
char *c; |
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tty_store(); |
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tty_disable_echo(); |
tty_disable_echo(); |
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if (fgets(passwd, pwlen, stdin)) |
if (fgets(passwd, pwlen, stdin)) |
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int i; |
int i; |
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char *c; |
char *c; |
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unsigned char iv[EVP_MAX_IV_LENGTH]; |
unsigned char iv[EVP_MAX_IV_LENGTH]; |
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unsigned char key[EVP_MAX_KEY_LENGTH]; |
unsigned char *key; |
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unsigned char buf[ENCRYPTION_BUF]; |
unsigned char buf[ENCRYPTION_BUF]; |
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unsigned char ebuf[ENCRYPTION_BUF]; |
unsigned char ebuf[ENCRYPTION_BUF]; |
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unsigned char bbuf[ENCRYPTION_BUF]; |
unsigned char bbuf[ENCRYPTION_BUF]; |
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EVP_CIPHER_CTX ctx; |
EVP_CIPHER_CTX ctx; |
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EVP_MD_CTX mdctx; |
EVP_MD_CTX mdctx; |
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EVP_ENCODE_CTX bctx; |
EVP_ENCODE_CTX bctx; |
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key = (unsigned char *) smalloc(EVP_MAX_KEY_LENGTH); |
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srandom(time(NULL)); |
srandom(time(NULL)); |
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/* |
/* |
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* Decode (Base64) and decrypt passwords and verify the MD5 checksum. |
* Decode (Base64) passwords, decrypt them and verify the MD5 checksum. |
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*/ |
*/ |
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int decrypt_passwords(unsigned char *buf, FILE *fd) |
int decrypt_passwords(unsigned char **buf, FILE *fd) |
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{ |
{ |
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int i, j = 1; |
int i, j = 1; |
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unsigned char iv[EVP_MAX_IV_LENGTH]; |
unsigned char iv[EVP_MAX_IV_LENGTH]; |
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unsigned char key[EVP_MAX_KEY_LENGTH]; |
unsigned char *key; |
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unsigned char *c = buf; |
unsigned char *c; |
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unsigned char ebuf[LINE_MAX]; |
unsigned char ebuf[LINE_MAX]; |
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unsigned char bbuf[LINE_MAX]; |
unsigned char bbuf[LINE_MAX]; |
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unsigned char mdv[EVP_MAX_MD_SIZE]; |
unsigned char mdv[EVP_MAX_MD_SIZE]; |
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unsigned char mdc[EVP_MAX_MD_SIZE * 2 + 1]; |
unsigned char mdc[EVP_MAX_MD_SIZE * 2 + 1]; |
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int mdl, bufl, ebufl; |
int mdl, bufl, ebufl; |
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EVP_CIPHER_CTX ctx; |
EVP_CIPHER_CTX *ctx; |
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EVP_MD_CTX mdctx; |
EVP_MD_CTX mdctx; |
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EVP_ENCODE_CTX bctx; |
EVP_ENCODE_CTX bctx; |
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c = *buf = (unsigned char *) smalloc(DECRYPTION_BUF * sizeof(char)); |
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key = (unsigned char *) smalloc(EVP_MAX_KEY_LENGTH); |
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ctx = (EVP_CIPHER_CTX *) smalloc(sizeof(EVP_CIPHER_CTX)); |
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fgets(bbuf, LINE_MAX, fd); |
fgets(bbuf, LINE_MAX, fd); |
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memcpy(iv, bbuf, EVP_MAX_IV_LENGTH); |
memcpy(iv, bbuf, EVP_MAX_IV_LENGTH); |
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EVP_CIPHER_CTX_init(&ctx); |
EVP_CIPHER_CTX_init(ctx); |
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EVP_BytesToKey(EVP_bf_cbc(), EVP_md5(), NULL, passphr, strlen(passphr), |
EVP_BytesToKey(EVP_bf_cbc(), EVP_md5(), NULL, passphr, strlen(passphr), |
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1, key, NULL); |
1, key, NULL); |
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EVP_DecryptInit(&ctx, EVP_bf_cbc(), key, iv); |
EVP_DecryptInit(ctx, EVP_bf_cbc(), key, iv); |
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EVP_DecodeInit(&bctx); |
EVP_DecodeInit(&bctx); |
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while (fgets(bbuf, LINE_MAX, fd)) { |
while (fgets(bbuf, LINE_MAX, fd)) { |
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EVP_DecodeUpdate(&bctx, ebuf, &ebufl, bbuf, strlen(bbuf)); |
EVP_DecodeUpdate(&bctx, ebuf, &ebufl, bbuf, strlen(bbuf)); |
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if (!EVP_DecryptUpdate(&ctx, c, &bufl, ebuf, ebufl)) { |
if (!EVP_DecryptUpdate(ctx, c, &bufl, ebuf, ebufl)) { |
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error("Wrong master passphrase.\n"); |
error("Wrong master passphrase.\n"); |
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sfree(*buf); |
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sfree(key); |
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sfree(ctx); |
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return 1; |
return 1; |
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} |
} |
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c += bufl; |
c += bufl; |
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*c = 0; |
*c = 0; |
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if (c - buf < DECRYPTION_BUF * j - 64) |
if (c - *buf < DECRYPTION_BUF * j - 64) |
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buf = (char *) xrealloc(buf, DECRYPTION_BUF * ++j); |
*buf = (char *) srealloc(*buf, DECRYPTION_BUF * ++j); |
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} |
} |
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EVP_DecodeFinal(&bctx, ebuf, &ebufl); |
EVP_DecodeFinal(&bctx, ebuf, &ebufl); |
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if (!EVP_DecryptFinal(&ctx, c, &bufl)) { |
if (!EVP_DecryptFinal(ctx, c, &bufl)) { |
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fprintf(stderr, "Wrong master passphrase.\n"); |
fprintf(stderr, "Wrong master passphrase.\n"); |
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sfree(*buf); |
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sfree(key); |
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sfree(ctx); |
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return 1; |
return 1; |
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} |
} |
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c += bufl; |
c += bufl; |
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*c = 0; |
*c = 0; |
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if ((c = strstr(buf, "\n.\n"))) { |
if ((c = strstr(*buf, "\n.\n"))) { |
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EVP_DigestInit(&mdctx, EVP_md5()); |
EVP_DigestInit(&mdctx, EVP_md5()); |
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EVP_DigestUpdate(&mdctx, buf, c - buf + 1); |
EVP_DigestUpdate(&mdctx, *buf, c - *buf + 1); |
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EVP_DigestFinal(&mdctx, mdv, &mdl); |
EVP_DigestFinal(&mdctx, mdv, &mdl); |
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for (i = 0; i < mdl; i++) |
for (i = 0; i < mdl; i++) |
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putchar('\n'); |
putchar('\n'); |
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*c = 0; |
*c = 0; |
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} else |
} else { |
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sfree(*buf); |
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sfree(key); |
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sfree(ctx); |
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return 1; |
return 1; |
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} |
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EVP_CIPHER_CTX_cleanup(&ctx); |
EVP_CIPHER_CTX_cleanup(ctx); |
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sfree(key); |
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sfree(ctx); |
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return 0; |
return 0; |
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} |
} |
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int i, q, n; |
int i, q, n; |
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char buf[LINE_MAX]; |
char buf[LINE_MAX]; |
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char *c; |
char *c; |
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char p[2][PASSPHRASE_LEN]; |
char *p[2]; |
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account_t *a, *accts[EDITOR_PASSWORDS_MAX]; |
account_t *a, *accts[EDITOR_PASSWORDS_MAX]; |
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q = 0; |
q = 0; |
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memset(accts, 0, EDITOR_PASSWORDS_MAX); |
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for (i = 0; i < EDITOR_PASSWORDS_MAX; i++) |
for (i = 0, a = accounts; i < EDITOR_PASSWORDS_MAX - 1 && a; a = a->next) { |
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accts[i] = NULL; |
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for (i = 0, a = accounts; i < EDITOR_PASSWORDS_MAX && a; a = a->next) { |
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if (a->passwdattr == PASSWORD_NONE || |
if (a->passwdattr == PASSWORD_NONE || |
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a->passwdattr == PASSWORD_ENCRYPTED) |
a->passwdattr == PASSWORD_ENCRYPTED) |
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accts[i++] = a; |
accts[i++] = a; |
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break; |
break; |
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accts[n - 1]->password[0] = 0; |
accts[n - 1]->password[0] = 0; |
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} else if (*c == 'p') { |
} else if (*c == 'p') { |
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p[0] = (char *) smalloc(PASSPHRASE_LEN); |
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p[1] = (char *) smalloc(PASSPHRASE_LEN); |
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do { |
do { |
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for (i = 0; i < 2; i++) { |
for (i = 0; i < 2; i++) { |
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printf("Enter %snew master password: ", |
printf("Enter %snew master password: ", |