зеркало из https://github.com/github/putty.git
1632 строки
43 KiB
C
1632 строки
43 KiB
C
/*
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* cmdgen.c - command-line form of PuTTYgen
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*/
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#define PUTTY_DO_GLOBALS
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <limits.h>
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#include <assert.h>
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#include <time.h>
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#include <errno.h>
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#include <string.h>
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#include "putty.h"
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#include "ssh.h"
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#ifdef TEST_CMDGEN
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/*
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* This section overrides some definitions below for test purposes.
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* When compiled with -DTEST_CMDGEN (as cgtest.c will do):
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*
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* - Calls to get_random_data() are replaced with the diagnostic
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* function below (I #define the name so that I can still link
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* with the original set of modules without symbol clash), in
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* order to avoid depleting the test system's /dev/random
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* unnecessarily.
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*
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* - Calls to console_get_userpass_input() are replaced with the
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* diagnostic function below, so that I can run tests in an
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* automated manner and provide their interactive passphrase
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* inputs.
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*
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* - main() is renamed to cmdgen_main(); at the bottom of the file
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* I define another main() which calls the former repeatedly to
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* run tests.
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*/
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#define get_random_data get_random_data_diagnostic
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char *get_random_data(int len, const char *device)
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{
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char *buf = snewn(len, char);
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memset(buf, 'x', len);
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return buf;
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}
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#define console_get_userpass_input console_get_userpass_input_diagnostic
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int nprompts, promptsgot;
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const char *prompts[3];
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int console_get_userpass_input(prompts_t *p)
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{
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size_t i;
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int ret = 1;
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for (i = 0; i < p->n_prompts; i++) {
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if (promptsgot < nprompts) {
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p->prompts[i]->result = dupstr(prompts[promptsgot++]);
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} else {
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promptsgot++; /* track number of requests anyway */
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ret = 0;
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}
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}
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return ret;
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}
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#define main cmdgen_main
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#endif
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struct progress {
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int phase, current;
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};
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static void progress_update(void *param, int action, int phase, int iprogress)
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{
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struct progress *p = (struct progress *)param;
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if (action != PROGFN_PROGRESS)
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return;
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if (phase > p->phase) {
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if (p->phase >= 0)
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fputc('\n', stderr);
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p->phase = phase;
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if (iprogress >= 0)
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p->current = iprogress - 1;
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else
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p->current = iprogress;
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}
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while (p->current < iprogress) {
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fputc('+', stdout);
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p->current++;
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}
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fflush(stdout);
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}
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static void no_progress(void *param, int action, int phase, int iprogress)
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{
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}
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/*
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* Stubs to let everything else link sensibly.
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*/
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char *x_get_default(const char *key)
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{
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return NULL;
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}
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void sk_cleanup(void)
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{
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}
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void showversion(void)
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{
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char *buildinfo_text = buildinfo("\n");
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printf("puttygen: %s\n%s\n", ver, buildinfo_text);
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sfree(buildinfo_text);
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}
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void usage(bool standalone)
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{
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fprintf(standalone ? stderr : stdout,
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"Usage: puttygen ( keyfile | -t type [ -b bits ] )\n"
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" [ -C comment ] [ -P ] [ -q ]\n"
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" [ -o output-keyfile ] [ -O type | -l | -L"
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" | -p ]\n");
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if (standalone)
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fprintf(stderr,
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"Use \"puttygen --help\" for more detail.\n");
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}
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void help(void)
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{
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/*
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* Help message is an extended version of the usage message. So
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* start with that, plus a version heading.
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*/
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printf("PuTTYgen: key generator and converter for the PuTTY tools\n"
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"%s\n", ver);
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usage(false);
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printf(" -t specify key type when generating (ed25519, ecdsa, rsa, "
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"dsa, rsa1)\n"
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" -b specify number of bits when generating key\n"
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" -C change or specify key comment\n"
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" -P change key passphrase\n"
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" -q quiet: do not display progress bar\n"
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" -O specify output type:\n"
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" private output PuTTY private key format\n"
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" private-openssh export OpenSSH private key\n"
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" private-openssh-new export OpenSSH private key "
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"(force new format)\n"
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" private-sshcom export ssh.com private key\n"
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" public RFC 4716 / ssh.com public key\n"
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" public-openssh OpenSSH public key\n"
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" fingerprint output the key fingerprint\n"
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" -o specify output file\n"
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" -l equivalent to `-O fingerprint'\n"
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" -L equivalent to `-O public-openssh'\n"
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" -p equivalent to `-O public'\n"
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" --old-passphrase file\n"
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" specify file containing old key passphrase\n"
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" --new-passphrase file\n"
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" specify file containing new key passphrase\n"
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" --random-device device\n"
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" specify device to read entropy from (e.g. /dev/urandom)\n"
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);
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}
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static bool move(char *from, char *to)
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{
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int ret;
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ret = rename(from, to);
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if (ret) {
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/*
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* This OS may require us to remove the original file first.
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*/
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remove(to);
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ret = rename(from, to);
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}
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if (ret) {
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perror("puttygen: cannot move new file on to old one");
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return false;
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}
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return true;
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}
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static char *readpassphrase(const char *filename)
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{
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FILE *fp;
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char *line;
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fp = fopen(filename, "r");
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if (!fp) {
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fprintf(stderr, "puttygen: cannot open %s: %s\n",
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filename, strerror(errno));
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return NULL;
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}
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line = fgetline(fp);
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if (line)
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line[strcspn(line, "\r\n")] = '\0';
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else if (ferror(fp))
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fprintf(stderr, "puttygen: error reading from %s: %s\n",
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filename, strerror(errno));
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else /* empty file */
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line = dupstr("");
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fclose(fp);
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return line;
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}
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#define DEFAULT_RSADSA_BITS 2048
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/* For Unix in particular, but harmless if this main() is reused elsewhere */
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const bool buildinfo_gtk_relevant = false;
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int main(int argc, char **argv)
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{
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char *infile = NULL;
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Filename *infilename = NULL, *outfilename = NULL;
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enum { NOKEYGEN, RSA1, RSA2, DSA, ECDSA, ED25519 } keytype = NOKEYGEN;
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char *outfile = NULL, *outfiletmp = NULL;
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enum { PRIVATE, PUBLIC, PUBLICO, FP, OPENSSH_AUTO,
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OPENSSH_NEW, SSHCOM } outtype = PRIVATE;
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int bits = -1;
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char *comment = NULL, *origcomment = NULL;
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bool change_passphrase = false;
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bool errs = false, nogo = false;
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int intype = SSH_KEYTYPE_UNOPENABLE;
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int sshver = 0;
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ssh2_userkey *ssh2key = NULL;
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RSAKey *ssh1key = NULL;
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strbuf *ssh2blob = NULL;
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char *ssh2alg = NULL;
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char *old_passphrase = NULL, *new_passphrase = NULL;
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bool load_encrypted;
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progfn_t progressfn = is_interactive() ? progress_update : no_progress;
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const char *random_device = NULL;
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/* ------------------------------------------------------------------
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* Parse the command line to figure out what we've been asked to do.
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*/
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/*
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* If run with no arguments at all, print the usage message and
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* return success.
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*/
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if (argc <= 1) {
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usage(true);
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return 0;
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}
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/*
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* Parse command line arguments.
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*/
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while (--argc) {
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char *p = *++argv;
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if (*p == '-') {
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/*
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* An option.
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*/
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while (p && *++p) {
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char c = *p;
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switch (c) {
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case '-':
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/*
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* Long option.
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*/
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{
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char *opt, *val;
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opt = p++; /* opt will have _one_ leading - */
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while (*p && *p != '=')
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p++; /* find end of option */
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if (*p == '=') {
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*p++ = '\0';
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val = p;
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} else
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val = NULL;
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if (!strcmp(opt, "-help")) {
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if (val) {
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errs = true;
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fprintf(stderr, "puttygen: option `-%s'"
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" expects no argument\n", opt);
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} else {
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help();
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nogo = true;
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}
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} else if (!strcmp(opt, "-version")) {
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if (val) {
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errs = true;
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fprintf(stderr, "puttygen: option `-%s'"
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" expects no argument\n", opt);
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} else {
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showversion();
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nogo = true;
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}
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} else if (!strcmp(opt, "-pgpfp")) {
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if (val) {
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errs = true;
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fprintf(stderr, "puttygen: option `-%s'"
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" expects no argument\n", opt);
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} else {
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/* support --pgpfp for consistency */
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pgp_fingerprints();
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nogo = true;
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}
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} else if (!strcmp(opt, "-old-passphrase")) {
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if (!val && argc > 1)
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--argc, val = *++argv;
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if (!val) {
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errs = true;
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fprintf(stderr, "puttygen: option `-%s'"
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" expects an argument\n", opt);
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} else {
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old_passphrase = readpassphrase(val);
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if (!old_passphrase)
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errs = true;
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}
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} else if (!strcmp(opt, "-new-passphrase")) {
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if (!val && argc > 1)
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--argc, val = *++argv;
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if (!val) {
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errs = true;
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fprintf(stderr, "puttygen: option `-%s'"
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" expects an argument\n", opt);
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} else {
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new_passphrase = readpassphrase(val);
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if (!new_passphrase)
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errs = true;
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}
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} else if (!strcmp(opt, "-random-device")) {
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if (!val && argc > 1)
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--argc, val = *++argv;
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if (!val) {
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errs = true;
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fprintf(stderr, "puttygen: option `-%s'"
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" expects an argument\n", opt);
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} else {
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random_device = val;
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}
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} else {
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errs = true;
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fprintf(stderr,
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"puttygen: no such option `-%s'\n", opt);
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}
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}
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p = NULL;
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break;
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case 'h':
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case 'V':
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case 'P':
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case 'l':
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case 'L':
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case 'p':
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case 'q':
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/*
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* Option requiring no parameter.
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*/
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switch (c) {
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case 'h':
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help();
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nogo = true;
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break;
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case 'V':
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showversion();
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nogo = true;
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break;
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case 'P':
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change_passphrase = true;
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break;
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case 'l':
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outtype = FP;
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break;
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case 'L':
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outtype = PUBLICO;
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break;
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case 'p':
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outtype = PUBLIC;
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break;
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case 'q':
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progressfn = no_progress;
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break;
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}
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break;
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case 't':
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case 'b':
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case 'C':
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case 'O':
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case 'o':
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/*
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* Option requiring parameter.
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*/
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p++;
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if (!*p && argc > 1)
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--argc, p = *++argv;
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else if (!*p) {
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fprintf(stderr, "puttygen: option `-%c' expects a"
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" parameter\n", c);
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errs = true;
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}
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/*
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* Now c is the option and p is the parameter.
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*/
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switch (c) {
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case 't':
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if (!strcmp(p, "rsa") || !strcmp(p, "rsa2"))
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keytype = RSA2, sshver = 2;
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else if (!strcmp(p, "rsa1"))
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keytype = RSA1, sshver = 1;
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else if (!strcmp(p, "dsa") || !strcmp(p, "dss"))
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keytype = DSA, sshver = 2;
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else if (!strcmp(p, "ecdsa"))
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keytype = ECDSA, sshver = 2;
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else if (!strcmp(p, "ed25519"))
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keytype = ED25519, sshver = 2;
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else {
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fprintf(stderr,
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"puttygen: unknown key type `%s'\n", p);
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errs = true;
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}
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break;
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case 'b':
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bits = atoi(p);
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break;
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case 'C':
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comment = p;
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break;
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case 'O':
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if (!strcmp(p, "public"))
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outtype = PUBLIC;
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else if (!strcmp(p, "public-openssh"))
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outtype = PUBLICO;
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else if (!strcmp(p, "private"))
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outtype = PRIVATE;
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else if (!strcmp(p, "fingerprint"))
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outtype = FP;
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else if (!strcmp(p, "private-openssh"))
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outtype = OPENSSH_AUTO, sshver = 2;
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else if (!strcmp(p, "private-openssh-new"))
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outtype = OPENSSH_NEW, sshver = 2;
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else if (!strcmp(p, "private-sshcom"))
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outtype = SSHCOM, sshver = 2;
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else {
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fprintf(stderr,
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"puttygen: unknown output type `%s'\n", p);
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errs = true;
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}
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break;
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case 'o':
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outfile = p;
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break;
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}
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p = NULL; /* prevent continued processing */
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break;
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default:
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/*
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* Unrecognised option.
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*/
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errs = true;
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fprintf(stderr, "puttygen: no such option `-%c'\n", c);
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break;
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}
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}
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} else {
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/*
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* A non-option argument.
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*/
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if (!infile)
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infile = p;
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else {
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errs = true;
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fprintf(stderr, "puttygen: cannot handle more than one"
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" input file\n");
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}
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}
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}
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if (bits == -1) {
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/*
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* No explicit key size was specified. Default varies
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* depending on key type.
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*/
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switch (keytype) {
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case ECDSA:
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bits = 384;
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break;
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case ED25519:
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bits = 256;
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break;
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default:
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bits = DEFAULT_RSADSA_BITS;
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break;
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}
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}
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if (keytype == ECDSA && (bits != 256 && bits != 384 && bits != 521)) {
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fprintf(stderr, "puttygen: invalid bits for ECDSA, choose 256, 384 or 521\n");
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errs = true;
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}
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if (keytype == ED25519 && (bits != 256)) {
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fprintf(stderr, "puttygen: invalid bits for ED25519, choose 256\n");
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errs = true;
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}
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if (keytype == RSA2 || keytype == RSA1 || keytype == DSA) {
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if (bits < 256) {
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fprintf(stderr, "puttygen: cannot generate %s keys shorter than"
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" 256 bits\n", (keytype == DSA ? "DSA" : "RSA"));
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errs = true;
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} else if (bits < DEFAULT_RSADSA_BITS) {
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fprintf(stderr, "puttygen: warning: %s keys shorter than"
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" %d bits are probably not secure\n",
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(keytype == DSA ? "DSA" : "RSA"), DEFAULT_RSADSA_BITS);
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/* but this is just a warning, so proceed anyway */
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}
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}
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if (errs)
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return 1;
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if (nogo)
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return 0;
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/*
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* If run with at least one argument _but_ not the required
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* ones, print the usage message and return failure.
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*/
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if (!infile && keytype == NOKEYGEN) {
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usage(true);
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return 1;
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}
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/* ------------------------------------------------------------------
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* Figure out further details of exactly what we're going to do.
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*/
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/*
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* Bomb out if we've been asked to both load and generate a
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* key.
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*/
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if (keytype != NOKEYGEN && infile) {
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fprintf(stderr, "puttygen: cannot both load and generate a key\n");
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return 1;
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}
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/*
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* We must save the private part when generating a new key.
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*/
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if (keytype != NOKEYGEN &&
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(outtype != PRIVATE && outtype != OPENSSH_AUTO &&
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outtype != OPENSSH_NEW && outtype != SSHCOM)) {
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fprintf(stderr, "puttygen: this would generate a new key but "
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"discard the private part\n");
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return 1;
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}
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/*
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* Analyse the type of the input file, in case this affects our
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* course of action.
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*/
|
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if (infile) {
|
|
infilename = filename_from_str(infile);
|
|
|
|
intype = key_type(infilename);
|
|
|
|
switch (intype) {
|
|
case SSH_KEYTYPE_UNOPENABLE:
|
|
case SSH_KEYTYPE_UNKNOWN:
|
|
fprintf(stderr, "puttygen: unable to load file `%s': %s\n",
|
|
infile, key_type_to_str(intype));
|
|
return 1;
|
|
|
|
case SSH_KEYTYPE_SSH1:
|
|
case SSH_KEYTYPE_SSH1_PUBLIC:
|
|
if (sshver == 2) {
|
|
fprintf(stderr, "puttygen: conversion from SSH-1 to SSH-2 keys"
|
|
" not supported\n");
|
|
return 1;
|
|
}
|
|
sshver = 1;
|
|
break;
|
|
|
|
case SSH_KEYTYPE_SSH2:
|
|
case SSH_KEYTYPE_SSH2_PUBLIC_RFC4716:
|
|
case SSH_KEYTYPE_SSH2_PUBLIC_OPENSSH:
|
|
case SSH_KEYTYPE_OPENSSH_PEM:
|
|
case SSH_KEYTYPE_OPENSSH_NEW:
|
|
case SSH_KEYTYPE_SSHCOM:
|
|
if (sshver == 1) {
|
|
fprintf(stderr, "puttygen: conversion from SSH-2 to SSH-1 keys"
|
|
" not supported\n");
|
|
return 1;
|
|
}
|
|
sshver = 2;
|
|
break;
|
|
|
|
case SSH_KEYTYPE_OPENSSH_AUTO:
|
|
default:
|
|
unreachable("Should never see these types on an input file");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Determine the default output file, if none is provided.
|
|
*
|
|
* This will usually be equal to stdout, except that if the
|
|
* input and output file formats are the same then the default
|
|
* output is to overwrite the input.
|
|
*
|
|
* Also in this code, we bomb out if the input and output file
|
|
* formats are the same and no other action is performed.
|
|
*/
|
|
if ((intype == SSH_KEYTYPE_SSH1 && outtype == PRIVATE) ||
|
|
(intype == SSH_KEYTYPE_SSH2 && outtype == PRIVATE) ||
|
|
(intype == SSH_KEYTYPE_OPENSSH_PEM && outtype == OPENSSH_AUTO) ||
|
|
(intype == SSH_KEYTYPE_OPENSSH_NEW && outtype == OPENSSH_NEW) ||
|
|
(intype == SSH_KEYTYPE_SSHCOM && outtype == SSHCOM)) {
|
|
if (!outfile) {
|
|
outfile = infile;
|
|
outfiletmp = dupcat(outfile, ".tmp", NULL);
|
|
}
|
|
|
|
if (!change_passphrase && !comment) {
|
|
fprintf(stderr, "puttygen: this command would perform no useful"
|
|
" action\n");
|
|
return 1;
|
|
}
|
|
} else {
|
|
if (!outfile) {
|
|
/*
|
|
* Bomb out rather than automatically choosing to write
|
|
* a private key file to stdout.
|
|
*/
|
|
if (outtype == PRIVATE || outtype == OPENSSH_AUTO ||
|
|
outtype == OPENSSH_NEW || outtype == SSHCOM) {
|
|
fprintf(stderr, "puttygen: need to specify an output file\n");
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Figure out whether we need to load the encrypted part of the
|
|
* key. This will be the case if either (a) we need to write
|
|
* out a private key format, or (b) the entire input key file
|
|
* is encrypted.
|
|
*/
|
|
if (outtype == PRIVATE || outtype == OPENSSH_AUTO ||
|
|
outtype == OPENSSH_NEW || outtype == SSHCOM ||
|
|
intype == SSH_KEYTYPE_OPENSSH_PEM ||
|
|
intype == SSH_KEYTYPE_OPENSSH_NEW ||
|
|
intype == SSH_KEYTYPE_SSHCOM)
|
|
load_encrypted = true;
|
|
else
|
|
load_encrypted = false;
|
|
|
|
if (load_encrypted && (intype == SSH_KEYTYPE_SSH1_PUBLIC ||
|
|
intype == SSH_KEYTYPE_SSH2_PUBLIC_RFC4716 ||
|
|
intype == SSH_KEYTYPE_SSH2_PUBLIC_OPENSSH)) {
|
|
fprintf(stderr, "puttygen: cannot perform this action on a "
|
|
"public-key-only input file\n");
|
|
return 1;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------
|
|
* Now we're ready to actually do some stuff.
|
|
*/
|
|
|
|
/*
|
|
* Either load or generate a key.
|
|
*/
|
|
if (keytype != NOKEYGEN) {
|
|
char *entropy;
|
|
char default_comment[80];
|
|
struct tm tm;
|
|
struct progress prog;
|
|
|
|
prog.phase = -1;
|
|
prog.current = -1;
|
|
|
|
tm = ltime();
|
|
if (keytype == DSA)
|
|
strftime(default_comment, 30, "dsa-key-%Y%m%d", &tm);
|
|
else if (keytype == ECDSA)
|
|
strftime(default_comment, 30, "ecdsa-key-%Y%m%d", &tm);
|
|
else if (keytype == ED25519)
|
|
strftime(default_comment, 30, "ed25519-key-%Y%m%d", &tm);
|
|
else
|
|
strftime(default_comment, 30, "rsa-key-%Y%m%d", &tm);
|
|
|
|
entropy = get_random_data(bits / 8, random_device);
|
|
if (!entropy) {
|
|
fprintf(stderr, "puttygen: failed to collect entropy, "
|
|
"could not generate key\n");
|
|
return 1;
|
|
}
|
|
random_setup_special();
|
|
random_reseed(make_ptrlen(entropy, bits / 8));
|
|
smemclr(entropy, bits/8);
|
|
sfree(entropy);
|
|
|
|
if (keytype == DSA) {
|
|
struct dss_key *dsskey = snew(struct dss_key);
|
|
dsa_generate(dsskey, bits, progressfn, &prog);
|
|
ssh2key = snew(ssh2_userkey);
|
|
ssh2key->key = &dsskey->sshk;
|
|
ssh1key = NULL;
|
|
} else if (keytype == ECDSA) {
|
|
struct ecdsa_key *ek = snew(struct ecdsa_key);
|
|
ecdsa_generate(ek, bits, progressfn, &prog);
|
|
ssh2key = snew(ssh2_userkey);
|
|
ssh2key->key = &ek->sshk;
|
|
ssh1key = NULL;
|
|
} else if (keytype == ED25519) {
|
|
struct eddsa_key *ek = snew(struct eddsa_key);
|
|
eddsa_generate(ek, bits, progressfn, &prog);
|
|
ssh2key = snew(ssh2_userkey);
|
|
ssh2key->key = &ek->sshk;
|
|
ssh1key = NULL;
|
|
} else {
|
|
RSAKey *rsakey = snew(RSAKey);
|
|
rsa_generate(rsakey, bits, progressfn, &prog);
|
|
rsakey->comment = NULL;
|
|
if (keytype == RSA1) {
|
|
ssh1key = rsakey;
|
|
} else {
|
|
ssh2key = snew(ssh2_userkey);
|
|
ssh2key->key = &rsakey->sshk;
|
|
}
|
|
}
|
|
progressfn(&prog, PROGFN_PROGRESS, INT_MAX, -1);
|
|
|
|
if (ssh2key)
|
|
ssh2key->comment = dupstr(default_comment);
|
|
if (ssh1key)
|
|
ssh1key->comment = dupstr(default_comment);
|
|
|
|
} else {
|
|
const char *error = NULL;
|
|
bool encrypted;
|
|
|
|
assert(infile != NULL);
|
|
|
|
/*
|
|
* Find out whether the input key is encrypted.
|
|
*/
|
|
if (intype == SSH_KEYTYPE_SSH1)
|
|
encrypted = rsa_ssh1_encrypted(infilename, &origcomment);
|
|
else if (intype == SSH_KEYTYPE_SSH2)
|
|
encrypted = ssh2_userkey_encrypted(infilename, &origcomment);
|
|
else
|
|
encrypted = import_encrypted(infilename, intype, &origcomment);
|
|
|
|
/*
|
|
* If so, ask for a passphrase.
|
|
*/
|
|
if (encrypted && load_encrypted) {
|
|
if (!old_passphrase) {
|
|
prompts_t *p = new_prompts();
|
|
int ret;
|
|
p->to_server = false;
|
|
p->name = dupstr("SSH key passphrase");
|
|
add_prompt(p, dupstr("Enter passphrase to load key: "), false);
|
|
ret = console_get_userpass_input(p);
|
|
assert(ret >= 0);
|
|
if (!ret) {
|
|
free_prompts(p);
|
|
perror("puttygen: unable to read passphrase");
|
|
return 1;
|
|
} else {
|
|
old_passphrase = dupstr(p->prompts[0]->result);
|
|
free_prompts(p);
|
|
}
|
|
}
|
|
} else {
|
|
old_passphrase = NULL;
|
|
}
|
|
|
|
switch (intype) {
|
|
int ret;
|
|
|
|
case SSH_KEYTYPE_SSH1:
|
|
case SSH_KEYTYPE_SSH1_PUBLIC:
|
|
ssh1key = snew(RSAKey);
|
|
if (!load_encrypted) {
|
|
strbuf *blob;
|
|
BinarySource src[1];
|
|
|
|
blob = strbuf_new();
|
|
ret = rsa_ssh1_loadpub(infilename, BinarySink_UPCAST(blob),
|
|
&origcomment, &error);
|
|
BinarySource_BARE_INIT(src, blob->u, blob->len);
|
|
get_rsa_ssh1_pub(src, ssh1key, RSA_SSH1_EXPONENT_FIRST);
|
|
strbuf_free(blob);
|
|
|
|
ssh1key->comment = dupstr(origcomment);
|
|
ssh1key->private_exponent = NULL;
|
|
ssh1key->p = NULL;
|
|
ssh1key->q = NULL;
|
|
ssh1key->iqmp = NULL;
|
|
} else {
|
|
ret = rsa_ssh1_loadkey(
|
|
infilename, ssh1key, old_passphrase, &error);
|
|
}
|
|
if (ret > 0)
|
|
error = NULL;
|
|
else if (!error)
|
|
error = "unknown error";
|
|
break;
|
|
|
|
case SSH_KEYTYPE_SSH2:
|
|
case SSH_KEYTYPE_SSH2_PUBLIC_RFC4716:
|
|
case SSH_KEYTYPE_SSH2_PUBLIC_OPENSSH:
|
|
if (!load_encrypted) {
|
|
ssh2blob = strbuf_new();
|
|
if (ssh2_userkey_loadpub(infilename, &ssh2alg, BinarySink_UPCAST(ssh2blob),
|
|
&origcomment, &error)) {
|
|
const ssh_keyalg *alg = find_pubkey_alg(ssh2alg);
|
|
if (alg)
|
|
bits = ssh_key_public_bits(
|
|
alg, ptrlen_from_strbuf(ssh2blob));
|
|
else
|
|
bits = -1;
|
|
} else {
|
|
strbuf_free(ssh2blob);
|
|
ssh2blob = NULL;
|
|
}
|
|
sfree(ssh2alg);
|
|
} else {
|
|
ssh2key = ssh2_load_userkey(infilename, old_passphrase,
|
|
&error);
|
|
}
|
|
if ((ssh2key && ssh2key != SSH2_WRONG_PASSPHRASE) || ssh2blob)
|
|
error = NULL;
|
|
else if (!error) {
|
|
if (ssh2key == SSH2_WRONG_PASSPHRASE)
|
|
error = "wrong passphrase";
|
|
else
|
|
error = "unknown error";
|
|
}
|
|
break;
|
|
|
|
case SSH_KEYTYPE_OPENSSH_PEM:
|
|
case SSH_KEYTYPE_OPENSSH_NEW:
|
|
case SSH_KEYTYPE_SSHCOM:
|
|
ssh2key = import_ssh2(infilename, intype, old_passphrase, &error);
|
|
if (ssh2key) {
|
|
if (ssh2key != SSH2_WRONG_PASSPHRASE)
|
|
error = NULL;
|
|
else
|
|
error = "wrong passphrase";
|
|
} else if (!error)
|
|
error = "unknown error";
|
|
break;
|
|
|
|
default:
|
|
unreachable("bad input key type");
|
|
}
|
|
|
|
if (error) {
|
|
fprintf(stderr, "puttygen: error loading `%s': %s\n",
|
|
infile, error);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Change the comment if asked to.
|
|
*/
|
|
if (comment) {
|
|
if (sshver == 1) {
|
|
assert(ssh1key);
|
|
sfree(ssh1key->comment);
|
|
ssh1key->comment = dupstr(comment);
|
|
} else {
|
|
assert(ssh2key);
|
|
sfree(ssh2key->comment);
|
|
ssh2key->comment = dupstr(comment);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Unless we're changing the passphrase, the old one (if any) is a
|
|
* reasonable default.
|
|
*/
|
|
if (!change_passphrase && old_passphrase && !new_passphrase)
|
|
new_passphrase = dupstr(old_passphrase);
|
|
|
|
/*
|
|
* Prompt for a new passphrase if we have been asked to, or if
|
|
* we have just generated a key.
|
|
*/
|
|
if (!new_passphrase && (change_passphrase || keytype != NOKEYGEN)) {
|
|
prompts_t *p = new_prompts(NULL);
|
|
int ret;
|
|
|
|
p->to_server = false;
|
|
p->name = dupstr("New SSH key passphrase");
|
|
add_prompt(p, dupstr("Enter passphrase to save key: "), false);
|
|
add_prompt(p, dupstr("Re-enter passphrase to verify: "), false);
|
|
ret = console_get_userpass_input(p);
|
|
assert(ret >= 0);
|
|
if (!ret) {
|
|
free_prompts(p);
|
|
perror("puttygen: unable to read new passphrase");
|
|
return 1;
|
|
} else {
|
|
if (strcmp(p->prompts[0]->result, p->prompts[1]->result)) {
|
|
free_prompts(p);
|
|
fprintf(stderr, "puttygen: passphrases do not match\n");
|
|
return 1;
|
|
}
|
|
new_passphrase = dupstr(p->prompts[0]->result);
|
|
free_prompts(p);
|
|
}
|
|
}
|
|
if (new_passphrase && !*new_passphrase) {
|
|
sfree(new_passphrase);
|
|
new_passphrase = NULL;
|
|
}
|
|
|
|
/*
|
|
* Write output.
|
|
*
|
|
* (In the case where outfile and outfiletmp are both NULL,
|
|
* there is no semantic reason to initialise outfilename at
|
|
* all; but we have to write _something_ to it or some compiler
|
|
* will probably complain that it might be used uninitialised.)
|
|
*/
|
|
if (outfiletmp)
|
|
outfilename = filename_from_str(outfiletmp);
|
|
else
|
|
outfilename = filename_from_str(outfile ? outfile : "");
|
|
|
|
switch (outtype) {
|
|
bool ret;
|
|
int real_outtype;
|
|
|
|
case PRIVATE:
|
|
if (sshver == 1) {
|
|
assert(ssh1key);
|
|
ret = rsa_ssh1_savekey(outfilename, ssh1key, new_passphrase);
|
|
if (!ret) {
|
|
fprintf(stderr, "puttygen: unable to save SSH-1 private key\n");
|
|
return 1;
|
|
}
|
|
} else {
|
|
assert(ssh2key);
|
|
ret = ssh2_save_userkey(outfilename, ssh2key, new_passphrase);
|
|
if (!ret) {
|
|
fprintf(stderr, "puttygen: unable to save SSH-2 private key\n");
|
|
return 1;
|
|
}
|
|
}
|
|
if (outfiletmp) {
|
|
if (!move(outfiletmp, outfile))
|
|
return 1; /* rename failed */
|
|
}
|
|
break;
|
|
|
|
case PUBLIC:
|
|
case PUBLICO:
|
|
{
|
|
FILE *fp;
|
|
|
|
if (outfile) {
|
|
fp = f_open(outfilename, "w", false);
|
|
if (!fp) {
|
|
fprintf(stderr, "unable to open output file\n");
|
|
exit(1);
|
|
}
|
|
} else {
|
|
fp = stdout;
|
|
}
|
|
|
|
if (sshver == 1) {
|
|
ssh1_write_pubkey(fp, ssh1key);
|
|
} else {
|
|
if (!ssh2blob) {
|
|
assert(ssh2key);
|
|
ssh2blob = strbuf_new();
|
|
ssh_key_public_blob(ssh2key->key, BinarySink_UPCAST(ssh2blob));
|
|
}
|
|
|
|
ssh2_write_pubkey(fp, ssh2key ? ssh2key->comment : origcomment,
|
|
ssh2blob->s, ssh2blob->len,
|
|
(outtype == PUBLIC ?
|
|
SSH_KEYTYPE_SSH2_PUBLIC_RFC4716 :
|
|
SSH_KEYTYPE_SSH2_PUBLIC_OPENSSH));
|
|
}
|
|
|
|
if (outfile)
|
|
fclose(fp);
|
|
}
|
|
break;
|
|
|
|
case FP:
|
|
{
|
|
FILE *fp;
|
|
char *fingerprint;
|
|
|
|
if (sshver == 1) {
|
|
assert(ssh1key);
|
|
fingerprint = rsa_ssh1_fingerprint(ssh1key);
|
|
} else {
|
|
if (ssh2key) {
|
|
fingerprint = ssh2_fingerprint(ssh2key->key);
|
|
} else {
|
|
assert(ssh2blob);
|
|
fingerprint = ssh2_fingerprint_blob(
|
|
ptrlen_from_strbuf(ssh2blob));
|
|
}
|
|
}
|
|
|
|
if (outfile) {
|
|
fp = f_open(outfilename, "w", false);
|
|
if (!fp) {
|
|
fprintf(stderr, "unable to open output file\n");
|
|
exit(1);
|
|
}
|
|
} else {
|
|
fp = stdout;
|
|
}
|
|
fprintf(fp, "%s\n", fingerprint);
|
|
if (outfile)
|
|
fclose(fp);
|
|
|
|
sfree(fingerprint);
|
|
}
|
|
break;
|
|
|
|
case OPENSSH_AUTO:
|
|
case OPENSSH_NEW:
|
|
case SSHCOM:
|
|
assert(sshver == 2);
|
|
assert(ssh2key);
|
|
random_ref(); /* both foreign key types require randomness,
|
|
* for IV or padding */
|
|
switch (outtype) {
|
|
case OPENSSH_AUTO:
|
|
real_outtype = SSH_KEYTYPE_OPENSSH_AUTO;
|
|
break;
|
|
case OPENSSH_NEW:
|
|
real_outtype = SSH_KEYTYPE_OPENSSH_NEW;
|
|
break;
|
|
case SSHCOM:
|
|
real_outtype = SSH_KEYTYPE_SSHCOM;
|
|
break;
|
|
default:
|
|
unreachable("control flow goof");
|
|
}
|
|
ret = export_ssh2(outfilename, real_outtype, ssh2key, new_passphrase);
|
|
if (!ret) {
|
|
fprintf(stderr, "puttygen: unable to export key\n");
|
|
return 1;
|
|
}
|
|
if (outfiletmp) {
|
|
if (!move(outfiletmp, outfile))
|
|
return 1; /* rename failed */
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (old_passphrase) {
|
|
smemclr(old_passphrase, strlen(old_passphrase));
|
|
sfree(old_passphrase);
|
|
}
|
|
if (new_passphrase) {
|
|
smemclr(new_passphrase, strlen(new_passphrase));
|
|
sfree(new_passphrase);
|
|
}
|
|
|
|
if (ssh1key) {
|
|
freersakey(ssh1key);
|
|
}
|
|
if (ssh2key) {
|
|
sfree(ssh2key->comment);
|
|
ssh_key_free(ssh2key->key);
|
|
sfree(ssh2key);
|
|
}
|
|
sfree(origcomment);
|
|
if (infilename)
|
|
filename_free(infilename);
|
|
filename_free(outfilename);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef TEST_CMDGEN
|
|
|
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#undef main
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#include <stdarg.h>
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int passes, fails;
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void setup_passphrases(char *first, ...)
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{
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va_list ap;
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char *next;
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nprompts = 0;
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if (first) {
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prompts[nprompts++] = first;
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va_start(ap, first);
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while ((next = va_arg(ap, char *)) != NULL) {
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assert(nprompts < lenof(prompts));
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prompts[nprompts++] = next;
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}
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va_end(ap);
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}
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}
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void test(int retval, ...)
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{
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va_list ap;
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int i, argc, ret;
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char **argv;
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argc = 0;
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va_start(ap, retval);
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while (va_arg(ap, char *) != NULL)
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argc++;
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va_end(ap);
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argv = snewn(argc+1, char *);
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va_start(ap, retval);
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for (i = 0; i <= argc; i++)
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argv[i] = va_arg(ap, char *);
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va_end(ap);
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promptsgot = 0;
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ret = cmdgen_main(argc, argv);
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if (ret != retval) {
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printf("FAILED retval (exp %d got %d):", retval, ret);
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for (i = 0; i < argc; i++)
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printf(" %s", argv[i]);
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printf("\n");
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fails++;
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} else if (promptsgot != nprompts) {
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printf("FAILED nprompts (exp %d got %d):", nprompts, promptsgot);
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for (i = 0; i < argc; i++)
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printf(" %s", argv[i]);
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printf("\n");
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fails++;
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} else {
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passes++;
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}
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sfree(argv);
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}
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void filecmp(char *file1, char *file2, char *fmt, ...)
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{
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/*
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* Ideally I should do file comparison myself, to maximise the
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* portability of this test suite once this application begins
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* running on non-Unix platforms. For the moment, though,
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* calling Unix diff is perfectly adequate.
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*/
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char *buf;
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int ret;
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buf = dupprintf("diff -q '%s' '%s'", file1, file2);
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ret = system(buf);
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sfree(buf);
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if (ret) {
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va_list ap;
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printf("FAILED diff (ret=%d): ", ret);
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va_start(ap, fmt);
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vprintf(fmt, ap);
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va_end(ap);
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printf("\n");
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fails++;
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} else
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passes++;
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}
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char *cleanup_fp(char *s)
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{
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char *p;
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if (!strncmp(s, "ssh-", 4)) {
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s += strcspn(s, " \n\t");
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s += strspn(s, " \n\t");
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}
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p = s;
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s += strcspn(s, " \n\t");
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s += strspn(s, " \n\t");
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s += strcspn(s, " \n\t");
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return dupprintf("%.*s", (int)(s - p), p);
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}
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char *get_fp(char *filename)
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{
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FILE *fp;
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char buf[256], *ret;
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fp = fopen(filename, "r");
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if (!fp)
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return NULL;
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ret = fgets(buf, sizeof(buf), fp);
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fclose(fp);
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if (!ret)
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return NULL;
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return cleanup_fp(buf);
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}
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void check_fp(char *filename, char *fp, char *fmt, ...)
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{
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char *newfp;
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if (!fp)
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return;
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newfp = get_fp(filename);
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if (!strcmp(fp, newfp)) {
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passes++;
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} else {
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va_list ap;
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printf("FAILED check_fp ['%s' != '%s']: ", newfp, fp);
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va_start(ap, fmt);
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vprintf(fmt, ap);
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va_end(ap);
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printf("\n");
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fails++;
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}
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sfree(newfp);
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}
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int main(int argc, char **argv)
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{
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int i;
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static char *const keytypes[] = { "rsa1", "dsa", "rsa" };
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/*
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* Even when this thing is compiled for automatic test mode,
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* it's helpful to be able to invoke it with command-line
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* options for _manual_ tests.
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*/
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if (argc > 1)
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return cmdgen_main(argc, argv);
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passes = fails = 0;
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for (i = 0; i < lenof(keytypes); i++) {
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char filename[128], osfilename[128], scfilename[128];
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char pubfilename[128], tmpfilename1[128], tmpfilename2[128];
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char *fp;
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sprintf(filename, "test-%s.ppk", keytypes[i]);
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sprintf(pubfilename, "test-%s.pub", keytypes[i]);
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sprintf(osfilename, "test-%s.os", keytypes[i]);
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sprintf(scfilename, "test-%s.sc", keytypes[i]);
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sprintf(tmpfilename1, "test-%s.tmp1", keytypes[i]);
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sprintf(tmpfilename2, "test-%s.tmp2", keytypes[i]);
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/*
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* Create an encrypted key.
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*/
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setup_passphrases("sponge", "sponge", NULL);
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test(0, "puttygen", "-t", keytypes[i], "-o", filename, NULL);
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/*
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* List the public key in OpenSSH format.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-L", filename, "-o", pubfilename, NULL);
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{
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char *cmdbuf;
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fp = NULL;
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cmdbuf = dupprintf("ssh-keygen -l -f '%s' > '%s'",
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pubfilename, tmpfilename1);
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if (system(cmdbuf) ||
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(fp = get_fp(tmpfilename1)) == NULL) {
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printf("UNABLE to test fingerprint matching against OpenSSH");
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}
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sfree(cmdbuf);
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}
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/*
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* List the public key in IETF/ssh.com format.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-p", filename, NULL);
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/*
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* List the fingerprint of the key.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-l", filename, "-o", tmpfilename1, NULL);
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if (!fp) {
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/*
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* If we can't test fingerprints against OpenSSH, we
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* can at the very least test equality of all the
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* fingerprints we generate of this key throughout
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* testing.
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*/
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fp = get_fp(tmpfilename1);
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} else {
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check_fp(tmpfilename1, fp, "%s initial fp", keytypes[i]);
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}
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/*
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* Change the comment of the key; this _does_ require a
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* passphrase owing to the tamperproofing.
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*
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* NOTE: In SSH-1, this only requires a passphrase because
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* of inadequacies of the loading and saving mechanisms. In
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* _principle_, it should be perfectly possible to modify
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* the comment on an SSH-1 key without requiring a
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* passphrase; the only reason I can't do it is because my
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* loading and saving mechanisms don't include a method of
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* loading all the key data without also trying to decrypt
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* the private section.
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*
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* I don't consider this to be a problem worth solving,
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* because (a) to fix it would probably end up bloating
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* PuTTY proper, and (b) SSH-1 is on the way out anyway so
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* it shouldn't be highly significant. If it seriously
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* bothers anyone then perhaps I _might_ be persuadable.
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*/
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setup_passphrases("sponge", NULL);
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test(0, "puttygen", "-C", "new-comment", filename, NULL);
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/*
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* Change the passphrase to nothing.
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*/
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setup_passphrases("sponge", "", "", NULL);
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test(0, "puttygen", "-P", filename, NULL);
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/*
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* Change the comment of the key again; this time we expect no
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* passphrase to be required.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-C", "new-comment-2", filename, NULL);
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/*
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* Export the private key into OpenSSH format; no passphrase
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* should be required since the key is currently unencrypted.
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* For RSA1 keys, this should give an error.
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*/
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setup_passphrases(NULL);
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test((i==0), "puttygen", "-O", "private-openssh", "-o", osfilename,
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filename, NULL);
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if (i) {
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/*
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* List the fingerprint of the OpenSSH-formatted key.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-l", osfilename, "-o", tmpfilename1, NULL);
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check_fp(tmpfilename1, fp, "%s openssh clear fp", keytypes[i]);
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/*
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* List the public half of the OpenSSH-formatted key in
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* OpenSSH format.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-L", osfilename, NULL);
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/*
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* List the public half of the OpenSSH-formatted key in
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* IETF/ssh.com format.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-p", osfilename, NULL);
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}
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/*
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* Export the private key into ssh.com format; no passphrase
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* should be required since the key is currently unencrypted.
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* For RSA1 keys, this should give an error.
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*/
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setup_passphrases(NULL);
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test((i==0), "puttygen", "-O", "private-sshcom", "-o", scfilename,
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filename, NULL);
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if (i) {
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/*
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* List the fingerprint of the ssh.com-formatted key.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-l", scfilename, "-o", tmpfilename1, NULL);
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check_fp(tmpfilename1, fp, "%s ssh.com clear fp", keytypes[i]);
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/*
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* List the public half of the ssh.com-formatted key in
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* OpenSSH format.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-L", scfilename, NULL);
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/*
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* List the public half of the ssh.com-formatted key in
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* IETF/ssh.com format.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-p", scfilename, NULL);
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}
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if (i) {
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/*
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* Convert from OpenSSH into ssh.com.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", osfilename, "-o", tmpfilename1,
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"-O", "private-sshcom", NULL);
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/*
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* Convert from ssh.com back into a PuTTY key,
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* supplying the same comment as we had before we
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* started to ensure the comparison works.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", tmpfilename1, "-C", "new-comment-2",
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"-o", tmpfilename2, NULL);
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/*
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* See if the PuTTY key thus generated is the same as
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* the original.
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*/
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filecmp(filename, tmpfilename2,
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"p->o->s->p clear %s", keytypes[i]);
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/*
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* Convert from ssh.com to OpenSSH.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", scfilename, "-o", tmpfilename1,
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"-O", "private-openssh", NULL);
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/*
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* Convert from OpenSSH back into a PuTTY key,
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* supplying the same comment as we had before we
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* started to ensure the comparison works.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", tmpfilename1, "-C", "new-comment-2",
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"-o", tmpfilename2, NULL);
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/*
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* See if the PuTTY key thus generated is the same as
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* the original.
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*/
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filecmp(filename, tmpfilename2,
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"p->s->o->p clear %s", keytypes[i]);
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/*
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* Finally, do a round-trip conversion between PuTTY
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* and ssh.com without involving OpenSSH, to test that
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* the key comment is preserved in that case.
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*/
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setup_passphrases(NULL);
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test(0, "puttygen", "-O", "private-sshcom", "-o", tmpfilename1,
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filename, NULL);
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setup_passphrases(NULL);
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test(0, "puttygen", tmpfilename1, "-o", tmpfilename2, NULL);
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filecmp(filename, tmpfilename2,
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"p->s->p clear %s", keytypes[i]);
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}
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/*
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* Check that mismatched passphrases cause an error.
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*/
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setup_passphrases("sponge2", "sponge3", NULL);
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test(1, "puttygen", "-P", filename, NULL);
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/*
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* Put a passphrase back on.
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*/
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setup_passphrases("sponge2", "sponge2", NULL);
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test(0, "puttygen", "-P", filename, NULL);
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/*
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* Export the private key into OpenSSH format, this time
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* while encrypted. For RSA1 keys, this should give an
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* error.
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*/
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if (i == 0)
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setup_passphrases(NULL); /* error, hence no passphrase read */
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else
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setup_passphrases("sponge2", NULL);
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test((i==0), "puttygen", "-O", "private-openssh", "-o", osfilename,
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filename, NULL);
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if (i) {
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/*
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* List the fingerprint of the OpenSSH-formatted key.
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*/
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setup_passphrases("sponge2", NULL);
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test(0, "puttygen", "-l", osfilename, "-o", tmpfilename1, NULL);
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check_fp(tmpfilename1, fp, "%s openssh encrypted fp", keytypes[i]);
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/*
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* List the public half of the OpenSSH-formatted key in
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* OpenSSH format.
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*/
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setup_passphrases("sponge2", NULL);
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test(0, "puttygen", "-L", osfilename, NULL);
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/*
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* List the public half of the OpenSSH-formatted key in
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* IETF/ssh.com format.
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*/
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setup_passphrases("sponge2", NULL);
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test(0, "puttygen", "-p", osfilename, NULL);
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}
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/*
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* Export the private key into ssh.com format, this time
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* while encrypted. For RSA1 keys, this should give an
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* error.
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*/
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if (i == 0)
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setup_passphrases(NULL); /* error, hence no passphrase read */
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else
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setup_passphrases("sponge2", NULL);
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test((i==0), "puttygen", "-O", "private-sshcom", "-o", scfilename,
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filename, NULL);
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if (i) {
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/*
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* List the fingerprint of the ssh.com-formatted key.
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*/
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setup_passphrases("sponge2", NULL);
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test(0, "puttygen", "-l", scfilename, "-o", tmpfilename1, NULL);
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check_fp(tmpfilename1, fp, "%s ssh.com encrypted fp", keytypes[i]);
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/*
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* List the public half of the ssh.com-formatted key in
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* OpenSSH format.
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*/
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setup_passphrases("sponge2", NULL);
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test(0, "puttygen", "-L", scfilename, NULL);
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|
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/*
|
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* List the public half of the ssh.com-formatted key in
|
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* IETF/ssh.com format.
|
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*/
|
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setup_passphrases("sponge2", NULL);
|
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test(0, "puttygen", "-p", scfilename, NULL);
|
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}
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|
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if (i) {
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/*
|
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* Convert from OpenSSH into ssh.com.
|
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*/
|
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setup_passphrases("sponge2", NULL);
|
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test(0, "puttygen", osfilename, "-o", tmpfilename1,
|
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"-O", "private-sshcom", NULL);
|
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|
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/*
|
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* Convert from ssh.com back into a PuTTY key,
|
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* supplying the same comment as we had before we
|
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* started to ensure the comparison works.
|
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*/
|
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setup_passphrases("sponge2", NULL);
|
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test(0, "puttygen", tmpfilename1, "-C", "new-comment-2",
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"-o", tmpfilename2, NULL);
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|
|
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/*
|
|
* See if the PuTTY key thus generated is the same as
|
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* the original.
|
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*/
|
|
filecmp(filename, tmpfilename2,
|
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"p->o->s->p encrypted %s", keytypes[i]);
|
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|
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/*
|
|
* Convert from ssh.com to OpenSSH.
|
|
*/
|
|
setup_passphrases("sponge2", NULL);
|
|
test(0, "puttygen", scfilename, "-o", tmpfilename1,
|
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"-O", "private-openssh", NULL);
|
|
|
|
/*
|
|
* Convert from OpenSSH back into a PuTTY key,
|
|
* supplying the same comment as we had before we
|
|
* started to ensure the comparison works.
|
|
*/
|
|
setup_passphrases("sponge2", NULL);
|
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test(0, "puttygen", tmpfilename1, "-C", "new-comment-2",
|
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"-o", tmpfilename2, NULL);
|
|
|
|
/*
|
|
* See if the PuTTY key thus generated is the same as
|
|
* the original.
|
|
*/
|
|
filecmp(filename, tmpfilename2,
|
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"p->s->o->p encrypted %s", keytypes[i]);
|
|
|
|
/*
|
|
* Finally, do a round-trip conversion between PuTTY
|
|
* and ssh.com without involving OpenSSH, to test that
|
|
* the key comment is preserved in that case.
|
|
*/
|
|
setup_passphrases("sponge2", NULL);
|
|
test(0, "puttygen", "-O", "private-sshcom", "-o", tmpfilename1,
|
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filename, NULL);
|
|
setup_passphrases("sponge2", NULL);
|
|
test(0, "puttygen", tmpfilename1, "-o", tmpfilename2, NULL);
|
|
filecmp(filename, tmpfilename2,
|
|
"p->s->p encrypted %s", keytypes[i]);
|
|
}
|
|
|
|
/*
|
|
* Load with the wrong passphrase.
|
|
*/
|
|
setup_passphrases("sponge8", NULL);
|
|
test(1, "puttygen", "-C", "spurious-new-comment", filename, NULL);
|
|
|
|
/*
|
|
* Load a totally bogus file.
|
|
*/
|
|
setup_passphrases(NULL);
|
|
test(1, "puttygen", "-C", "spurious-new-comment", pubfilename, NULL);
|
|
}
|
|
printf("%d passes, %d fails\n", passes, fails);
|
|
return 0;
|
|
}
|
|
|
|
#endif
|