+int MAIN(int argc, char **argv)
+{
+ int ret = 1;
+ char *infile = NULL;
+ int in_stdin = 0;
+ int in_noverify = 0;
+ char *salt = NULL, *passwd = NULL, **passwds = NULL;
+ char *salt_malloc = NULL, *passwd_malloc = NULL;
+ size_t passwd_malloc_size = 0;
+ int pw_source_defined = 0;
+ BIO *in = NULL, *out = NULL;
+ int i, badopt, opt_done;
+ int passed_salt = 0, quiet = 0, table = 0, reverse = 0;
+ int usecrypt = 0, use1 = 0, useapr1 = 0;
+ size_t pw_maxlen = 0;
+
+ apps_startup();
+
+ if (bio_err == NULL)
+ if ((bio_err = BIO_new(BIO_s_file())) != NULL)
+ BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
+
+ if (!load_config(bio_err, NULL))
+ goto err;
+ out = BIO_new(BIO_s_file());
+ if (out == NULL)
+ goto err;
+ BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT);
+# ifdef OPENSSL_SYS_VMS
+ {
+ BIO *tmpbio = BIO_new(BIO_f_linebuffer());
+ out = BIO_push(tmpbio, out);
+ }
+# endif
+
+ badopt = 0, opt_done = 0;
+ i = 0;
+ while (!badopt && !opt_done && argv[++i] != NULL) {
+ if (strcmp(argv[i], "-crypt") == 0)
+ usecrypt = 1;
+ else if (strcmp(argv[i], "-1") == 0)
+ use1 = 1;
+ else if (strcmp(argv[i], "-apr1") == 0)
+ useapr1 = 1;
+ else if (strcmp(argv[i], "-salt") == 0) {
+ if ((argv[i + 1] != NULL) && (salt == NULL)) {
+ passed_salt = 1;
+ salt = argv[++i];
+ } else
+ badopt = 1;
+ } else if (strcmp(argv[i], "-in") == 0) {
+ if ((argv[i + 1] != NULL) && !pw_source_defined) {
+ pw_source_defined = 1;
+ infile = argv[++i];
+ } else
+ badopt = 1;
+ } else if (strcmp(argv[i], "-stdin") == 0) {
+ if (!pw_source_defined) {
+ pw_source_defined = 1;
+ in_stdin = 1;
+ } else
+ badopt = 1;
+ } else if (strcmp(argv[i], "-noverify") == 0)
+ in_noverify = 1;
+ else if (strcmp(argv[i], "-quiet") == 0)
+ quiet = 1;
+ else if (strcmp(argv[i], "-table") == 0)
+ table = 1;
+ else if (strcmp(argv[i], "-reverse") == 0)
+ reverse = 1;
+ else if (argv[i][0] == '-')
+ badopt = 1;
+ else if (!pw_source_defined)
+ /* non-option arguments, use as passwords */
+ {
+ pw_source_defined = 1;
+ passwds = &argv[i];
+ opt_done = 1;
+ } else
+ badopt = 1;
+ }
+
+ if (!usecrypt && !use1 && !useapr1) /* use default */
+ usecrypt = 1;
+ if (usecrypt + use1 + useapr1 > 1) /* conflict */
+ badopt = 1;
+
+ /* reject unsupported algorithms */
+# ifdef OPENSSL_NO_DES
+ if (usecrypt)
+ badopt = 1;
+# endif
+# ifdef NO_MD5CRYPT_1
+ if (use1 || useapr1)
+ badopt = 1;
+# endif
+
+ if (badopt) {
+ BIO_printf(bio_err, "Usage: passwd [options] [passwords]\n");
+ BIO_printf(bio_err, "where options are\n");
+# ifndef OPENSSL_NO_DES
+ BIO_printf(bio_err,
+ "-crypt standard Unix password algorithm (default)\n");
+# endif
+# ifndef NO_MD5CRYPT_1
+ BIO_printf(bio_err,
+ "-1 MD5-based password algorithm\n");
+ BIO_printf(bio_err,
+ "-apr1 MD5-based password algorithm, Apache variant\n");
+# endif
+ BIO_printf(bio_err, "-salt string use provided salt\n");
+ BIO_printf(bio_err, "-in file read passwords from file\n");
+ BIO_printf(bio_err, "-stdin read passwords from stdin\n");
+ BIO_printf(bio_err,
+ "-noverify never verify when reading password from terminal\n");
+ BIO_printf(bio_err, "-quiet no warnings\n");
+ BIO_printf(bio_err, "-table format output as table\n");
+ BIO_printf(bio_err, "-reverse switch table columns\n");
+
+ goto err;
+ }
+
+ if ((infile != NULL) || in_stdin) {
+ in = BIO_new(BIO_s_file());
+ if (in == NULL)
+ goto err;
+ if (infile != NULL) {
+ assert(in_stdin == 0);
+ if (BIO_read_filename(in, infile) <= 0)
+ goto err;
+ } else {
+ assert(in_stdin);
+ BIO_set_fp(in, stdin, BIO_NOCLOSE);
+ }
+ }
+
+ if (usecrypt)
+ pw_maxlen = 8;
+ else if (use1 || useapr1)
+ pw_maxlen = 256; /* arbitrary limit, should be enough for most
+ * passwords */
+
+ if (passwds == NULL) {
+ /* no passwords on the command line */
+
+ passwd_malloc_size = pw_maxlen + 2;
+ /*
+ * longer than necessary so that we can warn about truncation
+ */
+ passwd = passwd_malloc = OPENSSL_malloc(passwd_malloc_size);
+ if (passwd_malloc == NULL)
+ goto err;
+ }
+
+ if ((in == NULL) && (passwds == NULL)) {
+ /* build a null-terminated list */
+ static char *passwds_static[2] = { NULL, NULL };
+
+ passwds = passwds_static;
+ if (in == NULL)
+ if (EVP_read_pw_string
+ (passwd_malloc, passwd_malloc_size, "Password: ",
+ !(passed_salt || in_noverify)) != 0)
+ goto err;
+ passwds[0] = passwd_malloc;
+ }
+
+ if (in == NULL) {
+ assert(passwds != NULL);
+ assert(*passwds != NULL);
+
+ do { /* loop over list of passwords */
+ passwd = *passwds++;
+ if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, out,
+ quiet, table, reverse, pw_maxlen, usecrypt, use1,
+ useapr1))
+ goto err;
+ }
+ while (*passwds != NULL);
+ } else
+ /* in != NULL */
+ {
+ int done;
+
+ assert(passwd != NULL);
+ do {
+ int r = BIO_gets(in, passwd, pw_maxlen + 1);
+ if (r > 0) {
+ char *c = (strchr(passwd, '\n'));
+ if (c != NULL)
+ *c = 0; /* truncate at newline */
+ else {
+ /* ignore rest of line */
+ char trash[BUFSIZ];
+ do
+ r = BIO_gets(in, trash, sizeof trash);
+ while ((r > 0) && (!strchr(trash, '\n')));
+ }
+
+ if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, out,
+ quiet, table, reverse, pw_maxlen, usecrypt,
+ use1, useapr1))
+ goto err;
+ }
+ done = (r <= 0);
+ }
+ while (!done);
+ }
+ ret = 0;
+
+ err:
+ ERR_print_errors(bio_err);
+ if (salt_malloc)
+ OPENSSL_free(salt_malloc);
+ if (passwd_malloc)
+ OPENSSL_free(passwd_malloc);
+ if (in)
+ BIO_free(in);
+ if (out)
+ BIO_free_all(out);
+ apps_shutdown();
+ OPENSSL_EXIT(ret);
+}
+
+# ifndef NO_MD5CRYPT_1
+/*
+ * MD5-based password algorithm (should probably be available as a library
+ * function; then the static buffer would not be acceptable). For magic
+ * string "1", this should be compatible to the MD5-based BSD password
+ * algorithm. For 'magic' string "apr1", this is compatible to the MD5-based
+ * Apache password algorithm. (Apparently, the Apache password algorithm is
+ * identical except that the 'magic' string was changed -- the laziest
+ * application of the NIH principle I've ever encountered.)
+ */
+static char *md5crypt(const char *passwd, const char *magic, const char *salt)
+{
+ /* "$apr1$..salt..$.......md5hash..........\0" */
+ static char out_buf[6 + 9 + 24 + 2];
+ unsigned char buf[MD5_DIGEST_LENGTH];
+ char *salt_out;
+ int n;
+ unsigned int i;
+ EVP_MD_CTX md, md2;
+ size_t passwd_len, salt_len;
+
+ passwd_len = strlen(passwd);
+ out_buf[0] = '$';
+ out_buf[1] = 0;
+ assert(strlen(magic) <= 4); /* "1" or "apr1" */
+ strncat(out_buf, magic, 4);
+ strncat(out_buf, "$", 1);
+ strncat(out_buf, salt, 8);
+ assert(strlen(out_buf) <= 6 + 8); /* "$apr1$..salt.." */
+ salt_out = out_buf + 2 + strlen(magic);
+ salt_len = strlen(salt_out);
+ assert(salt_len <= 8);
+
+ EVP_MD_CTX_init(&md);
+ EVP_DigestInit_ex(&md, EVP_md5(), NULL);
+ EVP_DigestUpdate(&md, passwd, passwd_len);
+ EVP_DigestUpdate(&md, "$", 1);
+ EVP_DigestUpdate(&md, magic, strlen(magic));
+ EVP_DigestUpdate(&md, "$", 1);
+ EVP_DigestUpdate(&md, salt_out, salt_len);
+
+ EVP_MD_CTX_init(&md2);
+ EVP_DigestInit_ex(&md2, EVP_md5(), NULL);
+ EVP_DigestUpdate(&md2, passwd, passwd_len);
+ EVP_DigestUpdate(&md2, salt_out, salt_len);
+ EVP_DigestUpdate(&md2, passwd, passwd_len);
+ EVP_DigestFinal_ex(&md2, buf, NULL);
+
+ for (i = passwd_len; i > sizeof buf; i -= sizeof buf)
+ EVP_DigestUpdate(&md, buf, sizeof buf);
+ EVP_DigestUpdate(&md, buf, i);
+
+ n = passwd_len;
+ while (n) {
+ EVP_DigestUpdate(&md, (n & 1) ? "\0" : passwd, 1);
+ n >>= 1;
+ }
+ EVP_DigestFinal_ex(&md, buf, NULL);
+
+ for (i = 0; i < 1000; i++) {
+ EVP_DigestInit_ex(&md2, EVP_md5(), NULL);
+ EVP_DigestUpdate(&md2, (i & 1) ? (unsigned const char *)passwd : buf,
+ (i & 1) ? passwd_len : sizeof buf);
+ if (i % 3)
+ EVP_DigestUpdate(&md2, salt_out, salt_len);
+ if (i % 7)
+ EVP_DigestUpdate(&md2, passwd, passwd_len);
+ EVP_DigestUpdate(&md2, (i & 1) ? buf : (unsigned const char *)passwd,
+ (i & 1) ? sizeof buf : passwd_len);
+ EVP_DigestFinal_ex(&md2, buf, NULL);
+ }
+ EVP_MD_CTX_cleanup(&md2);
+
+ {
+ /* transform buf into output string */
+
+ unsigned char buf_perm[sizeof buf];
+ int dest, source;
+ char *output;
+
+ /* silly output permutation */
+ for (dest = 0, source = 0; dest < 14;
+ dest++, source = (source + 6) % 17)
+ buf_perm[dest] = buf[source];
+ buf_perm[14] = buf[5];
+ buf_perm[15] = buf[11];
+# ifndef PEDANTIC /* Unfortunately, this generates a "no
+ * effect" warning */
+ assert(16 == sizeof buf_perm);
+# endif
+
+ output = salt_out + salt_len;
+ assert(output == out_buf + strlen(out_buf));
+
+ *output++ = '$';
+
+ for (i = 0; i < 15; i += 3) {
+ *output++ = cov_2char[buf_perm[i + 2] & 0x3f];
+ *output++ = cov_2char[((buf_perm[i + 1] & 0xf) << 2) |
+ (buf_perm[i + 2] >> 6)];
+ *output++ = cov_2char[((buf_perm[i] & 3) << 4) |
+ (buf_perm[i + 1] >> 4)];
+ *output++ = cov_2char[buf_perm[i] >> 2];
+ }
+ assert(i == 15);
+ *output++ = cov_2char[buf_perm[i] & 0x3f];
+ *output++ = cov_2char[buf_perm[i] >> 6];
+ *output = 0;
+ assert(strlen(out_buf) < sizeof(out_buf));
+ }
+ EVP_MD_CTX_cleanup(&md);
+
+ return out_buf;
+}
+# endif