GNU General Public License for more details.
*/
-/*
- * $Id$
- * $Log$
- * Revision 1.4 2000/07/10 05:40:05 priikone
- * Added support for verifying incoming public keys from user.
- * Shows fingerprint of the public key now plus other changes.
- *
- * Revision 1.3 2000/07/07 06:53:45 priikone
- * Added support for server public key verification.
- *
- * Revision 1.2 2000/07/05 06:11:00 priikone
- * Added ~./silc directory checking, autoloading of keys and
- * tweaked the key pair generation function.
- *
- * Revision 1.1.1.1 2000/06/27 11:36:56 priikone
- * Imported from internal CVS/Added Log headers.
- *
- *
- */
+/* $Id$ */
#include "clientincludes.h"
-/* Internal routine used to print lines to window. This can split the
+/* Routine used to print lines to window. This can split the
line neatly if a word would overlap the line. */
-static void silc_print_to_window(WINDOW *win, char *message)
+void silc_print_to_window(WINDOW *win, char *message)
{
int str_len, len;
wrefresh(win);
}
-/* Prints a message with three star (*) sign before the actual message
- on the current output window. This is used to print command outputs
- and error messages. */
-/* XXX Change to accept SilcClientWindow and use output window
- from there (the pointer to the output window must be added to the
- SilcClientWindow object. */
-
-void silc_say(SilcClient client, char *msg, ...)
-{
- va_list vp;
- char message[1024];
-
- memset(message, 0, sizeof(message));
- strncat(message, "\n*** ", 5);
-
- va_start(vp, msg);
- vsprintf(message + 5, msg, vp);
- va_end(vp);
-
- /* Print the message */
- silc_print_to_window(client->screen->output_win[0], message);
-}
-
/* Prints message to the screen. This is used to print the messages
user is typed and message that came on channels. */
void silc_print(SilcClient client, char *msg, ...)
{
va_list vp;
- char message[1024];
+ char message[2048];
+ SilcClientInternal app = client->application;
memset(message, 0, sizeof(message));
strncat(message, "\n ", 2);
va_end(vp);
/* Print the message */
- silc_print_to_window(client->screen->output_win[0], message);
+ silc_print_to_window(app->screen->output_win[0], message);
}
/* Returns user's mail path */
{
char pathbuf[MAXPATHLEN];
char *path;
+
+#ifndef _PATH_MAILDIR
+#define _PATH_MAILDIR "/var/mail"
+#endif
- if ((path = (char *)getenv("MAIL")) != 0) {
+ path = getenv("MAIL");
+ if (path) {
strncpy(pathbuf, path, strlen(path));
} else {
strcpy(pathbuf, _PATH_MAILDIR);
fprintf(stderr, "Couldn't open mail file (%s).\n", filename);
} else {
while((fscanf(tl, "%s", data)) != EOF) {
- if(!strcmp(data, "Subject:"))
+ if(!strcmp(data, "From:"))
num++;
}
return 60 - min->tm_sec;
}
-/* Asks passphrase from user on the input line. */
-
-char *silc_client_ask_passphrase(SilcClient client)
-{
- char pass1[256], pass2[256];
- char *ret;
- int try = 3;
-
- while(try) {
-
- /* Print prompt */
- wattroff(client->screen->input_win, A_INVIS);
- silc_screen_input_print_prompt(client->screen, "Passphrase: ");
- wattron(client->screen->input_win, A_INVIS);
-
- /* Get string */
- memset(pass1, 0, sizeof(pass1));
- wgetnstr(client->screen->input_win, pass1, sizeof(pass1));
-
- /* Print retype prompt */
- wattroff(client->screen->input_win, A_INVIS);
- silc_screen_input_print_prompt(client->screen, "Retype passphrase: ");
- wattron(client->screen->input_win, A_INVIS);
-
- /* Get string */
- memset(pass2, 0, sizeof(pass2));
- wgetnstr(client->screen->input_win, pass2, sizeof(pass2));
-
- if (!strncmp(pass1, pass2, strlen(pass2)))
- break;
-
- try--;
- }
-
- ret = silc_calloc(strlen(pass1), sizeof(char));
- memcpy(ret, pass1, strlen(pass1));
-
- memset(pass1, 0, sizeof(pass1));
- memset(pass2, 0, sizeof(pass2));
-
- wattroff(client->screen->input_win, A_INVIS);
- silc_screen_input_reset(client->screen);
-
- return ret;
-}
-
/* Asks yes/no from user on the input line. Returns TRUE on "yes" and
FALSE on "no". */
int silc_client_ask_yes_no(SilcClient client, char *prompt)
{
+ SilcClientInternal app = (SilcClientInternal)client->application;
char answer[4];
int ret;
again:
- silc_screen_input_reset(client->screen);
+ silc_screen_input_reset(app->screen);
/* Print prompt */
- wattroff(client->screen->input_win, A_INVIS);
- silc_screen_input_print_prompt(client->screen, prompt);
+ wattroff(app->screen->input_win, A_INVIS);
+ silc_screen_input_print_prompt(app->screen, prompt);
/* Get string */
memset(answer, 0, sizeof(answer));
echo();
- wgetnstr(client->screen->input_win, answer, sizeof(answer));
+ wgetnstr(app->screen->input_win, answer, sizeof(answer));
if (!strncasecmp(answer, "yes", strlen(answer)) ||
!strncasecmp(answer, "y", strlen(answer))) {
ret = TRUE;
!strncasecmp(answer, "n", strlen(answer))) {
ret = FALSE;
} else {
- silc_say(client, "Type yes or no");
+ silc_say(client, app->conn, "Type yes or no");
goto again;
}
noecho();
- silc_screen_input_reset(client->screen);
+ silc_screen_input_reset(app->screen);
return ret;
}
SilcRng rng;
unsigned char *key;
unsigned int key_len;
+ char line[256];
char *pkfile = NULL, *prvfile = NULL;
if (!pkcs_name || !public_key || !private_key)
if (!identifier) {
char *def = silc_client_create_identifier();
- if (identifier)
- snprintf(def, sizeof(def), "Public key identifier [%s]: ", def);
+ memset(line, 0, sizeof(line));
+ if (def)
+ snprintf(line, sizeof(line), "Identifier [%s]: ", def);
else
- snprintf(def, sizeof(def),
- "Public key identifier (eg. UN=priikone, HN=poseidon.pspt.fi, "
- "RN=Pekka Riikonen, E=priikone@poseidon.pspt.fi): ");
-
- again_ident:
- identifier = silc_client_get_input(def);
- if (!identifier)
- goto again_ident;
+ snprintf(line, sizeof(line),
+ "Identifier (eg. UN=jon, HN=jon.dummy.com, "
+ "RN=Jon Johnson, E=jon@dummy.com): ");
+
+ while (!identifier) {
+ identifier = silc_client_get_input(line);
+ if (!identifier && def)
+ identifier = strdup(def);
+ }
if (def)
silc_free(def);
silc_math_primegen_init();
if (!public_key) {
- again_pk:
- pkfile = silc_client_get_input("Public key filename: ");
- if (!pkfile) {
- printf("Public key filename must be defined\n");
- goto again_pk;
- }
+ memset(line, 0, sizeof(line));
+ snprintf(line, sizeof(line), "Public key filename [%s] ",
+ SILC_CLIENT_PUBLIC_KEY_NAME);
+ pkfile = silc_client_get_input(line);
+ if (!pkfile)
+ pkfile = SILC_CLIENT_PUBLIC_KEY_NAME;
} else {
pkfile = public_key;
}
if (!private_key) {
- again_prv:
- prvfile = silc_client_get_input("Private key filename: ");
- if (!prvfile) {
- printf("Private key filename must be defined\n");
- goto again_prv;
- }
+ memset(line, 0, sizeof(line));
+ snprintf(line, sizeof(line), "Public key filename [%s] ",
+ SILC_CLIENT_PRIVATE_KEY_NAME);
+ prvfile = silc_client_get_input(line);
+ if (!prvfile)
+ prvfile = SILC_CLIENT_PRIVATE_KEY_NAME;
} else {
prvfile = private_key;
}
return TRUE;
}
-
-/* Verifies received public key. If user decides to trust the key it is
- saved as trusted server key for later use. If user does not trust the
- key this returns FALSE. */
-
-int silc_client_verify_server_key(SilcClient client,
- SilcSocketConnection sock,
- unsigned char *pk, unsigned int pk_len,
- SilcSKEPKType pk_type)
-{
- char filename[256];
- char file[256];
- char *hostname, *fingerprint;
- struct passwd *pw;
- struct stat st;
-
- hostname = sock->hostname ? sock->hostname : sock->ip;
-
- if (pk_type != SILC_SKE_PK_TYPE_SILC) {
- silc_say(client, "We don't support server %s key type", hostname);
- return FALSE;
- }
-
- pw = getpwuid(getuid());
- if (!pw)
- return FALSE;
-
- memset(filename, 0, sizeof(filename));
- memset(file, 0, sizeof(file));
- snprintf(file, sizeof(file) - 1, "serverkey_%s_%d.pub", hostname,
- sock->port);
- snprintf(filename, sizeof(filename) - 1, "%s/.silc/serverkeys/%s",
- pw->pw_dir, file);
-
- /* Check wheter this key already exists */
- if (stat(filename, &st) < 0) {
-
- fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
- silc_say(client, "Received server %s public key", hostname);
- silc_say(client, "Fingerprint for the server %s key is", hostname);
- silc_say(client, "%s", fingerprint);
- silc_free(fingerprint);
-
- /* Ask user to verify the key and save it */
- if (silc_client_ask_yes_no(client,
- "Would you like to accept the key (y/n)? "))
- {
- /* Save the key for future checking */
- silc_pkcs_save_public_key_data(filename, pk, pk_len,
- SILC_PKCS_FILE_PEM);
- return TRUE;
- }
- } else {
- /* The key already exists, verify it. */
- SilcPublicKey public_key;
- unsigned char *encpk;
- unsigned int encpk_len;
-
- /* Load the key file */
- if (!silc_pkcs_load_public_key(filename, &public_key,
- SILC_PKCS_FILE_PEM))
- if (!silc_pkcs_load_public_key(filename, &public_key,
- SILC_PKCS_FILE_BIN)) {
- fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
- silc_say(client, "Received server %s public key", hostname);
- silc_say(client, "Fingerprint for the server %s key is", hostname);
- silc_say(client, "%s", fingerprint);
- silc_free(fingerprint);
- silc_say(client, "Could not load your local copy of the server %s key",
- hostname);
- if (silc_client_ask_yes_no(client,
- "Would you like to accept the key anyway (y/n)? "))
- {
- /* Save the key for future checking */
- unlink(filename);
- silc_pkcs_save_public_key_data(filename, pk, pk_len,
- SILC_PKCS_FILE_PEM);
- return TRUE;
- }
-
- return FALSE;
- }
-
- /* Encode the key data */
- encpk = silc_pkcs_public_key_encode(public_key, &encpk_len);
- if (!encpk) {
- fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
- silc_say(client, "Received server %s public key", hostname);
- silc_say(client, "Fingerprint for the server %s key is", hostname);
- silc_say(client, "%s", fingerprint);
- silc_free(fingerprint);
- silc_say(client, "Your local copy of the server %s key is malformed",
- hostname);
- if (silc_client_ask_yes_no(client,
- "Would you like to accept the key anyway (y/n)? "))
- {
- /* Save the key for future checking */
- unlink(filename);
- silc_pkcs_save_public_key_data(filename, pk, pk_len,
- SILC_PKCS_FILE_PEM);
- return TRUE;
- }
-
- return FALSE;
- }
-
- if (memcmp(encpk, pk, encpk_len)) {
- fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
- silc_say(client, "Received server %s public key", hostname);
- silc_say(client, "Fingerprint for the server %s key is", hostname);
- silc_say(client, "%s", fingerprint);
- silc_free(fingerprint);
- silc_say(client, "Server %s key does not match with your local copy",
- hostname);
- silc_say(client, "It is possible that the key has expired or changed");
- silc_say(client, "It is also possible that some one is performing "
- "man-in-the-middle attack");
-
- /* Ask user to verify the key and save it */
- if (silc_client_ask_yes_no(client,
- "Would you like to accept the key anyway (y/n)? "))
- {
- /* Save the key for future checking */
- unlink(filename);
- silc_pkcs_save_public_key_data(filename, pk, pk_len,
- SILC_PKCS_FILE_PEM);
- return TRUE;
- }
-
- silc_say(client, "Will not accept server %s key", hostname);
- return FALSE;
- }
-
- /* Local copy matched */
- return TRUE;
- }
-
- silc_say(client, "Will not accept server %s key", hostname);
- return FALSE;
-}
projects / silc.git / blobdiff