aboutsummaryrefslogtreecommitdiff
path: root/openssl/apps/passwd.c
diff options
context:
space:
mode:
Diffstat (limited to 'openssl/apps/passwd.c')
-rw-r--r--openssl/apps/passwd.c512
1 files changed, 512 insertions, 0 deletions
diff --git a/openssl/apps/passwd.c b/openssl/apps/passwd.c
new file mode 100644
index 000000000..9ca25dd1d
--- /dev/null
+++ b/openssl/apps/passwd.c
@@ -0,0 +1,512 @@
+/* apps/passwd.c */
+
+#if defined OPENSSL_NO_MD5 || defined CHARSET_EBCDIC
+# define NO_MD5CRYPT_1
+#endif
+
+#if !defined(OPENSSL_NO_DES) || !defined(NO_MD5CRYPT_1)
+
+#include <assert.h>
+#include <string.h>
+
+#include "apps.h"
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+#ifndef OPENSSL_NO_DES
+# include <openssl/des.h>
+#endif
+#ifndef NO_MD5CRYPT_1
+# include <openssl/md5.h>
+#endif
+
+
+#undef PROG
+#define PROG passwd_main
+
+
+static unsigned const char cov_2char[64]={
+ /* from crypto/des/fcrypt.c */
+ 0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,
+ 0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44,
+ 0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,
+ 0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54,
+ 0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62,
+ 0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,
+ 0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,
+ 0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A
+};
+
+static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
+ char *passwd, BIO *out, int quiet, int table, int reverse,
+ size_t pw_maxlen, int usecrypt, int use1, int useapr1);
+
+/* -crypt - standard Unix password algorithm (default)
+ * -1 - MD5-based password algorithm
+ * -apr1 - MD5-based password algorithm, Apache variant
+ * -salt string - salt
+ * -in file - read passwords from file
+ * -stdin - read passwords from stdin
+ * -noverify - never verify when reading password from terminal
+ * -quiet - no warnings
+ * -table - format output as table
+ * -reverse - switch table columns
+ */
+
+int MAIN(int, char **);
+
+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)
+ {
+ static char out_buf[6 + 9 + 24 + 2]; /* "$apr1$..salt..$.......md5hash..........\0" */
+ unsigned char buf[MD5_DIGEST_LENGTH];
+ char *salt_out;
+ int n;
+ unsigned int i;
+ EVP_MD_CTX md,md2;
+ size_t passwd_len, salt_len;
+
+ passwd_len = strlen(passwd);
+ out_buf[0] = '$';
+ 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
+
+
+static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
+ char *passwd, BIO *out, int quiet, int table, int reverse,
+ size_t pw_maxlen, int usecrypt, int use1, int useapr1)
+ {
+ char *hash = NULL;
+
+ assert(salt_p != NULL);
+ assert(salt_malloc_p != NULL);
+
+ /* first make sure we have a salt */
+ if (!passed_salt)
+ {
+#ifndef OPENSSL_NO_DES
+ if (usecrypt)
+ {
+ if (*salt_malloc_p == NULL)
+ {
+ *salt_p = *salt_malloc_p = OPENSSL_malloc(3);
+ if (*salt_malloc_p == NULL)
+ goto err;
+ }
+ if (RAND_pseudo_bytes((unsigned char *)*salt_p, 2) < 0)
+ goto err;
+ (*salt_p)[0] = cov_2char[(*salt_p)[0] & 0x3f]; /* 6 bits */
+ (*salt_p)[1] = cov_2char[(*salt_p)[1] & 0x3f]; /* 6 bits */
+ (*salt_p)[2] = 0;
+#ifdef CHARSET_EBCDIC
+ ascii2ebcdic(*salt_p, *salt_p, 2); /* des_crypt will convert
+ * back to ASCII */
+#endif
+ }
+#endif /* !OPENSSL_NO_DES */
+
+#ifndef NO_MD5CRYPT_1
+ if (use1 || useapr1)
+ {
+ int i;
+
+ if (*salt_malloc_p == NULL)
+ {
+ *salt_p = *salt_malloc_p = OPENSSL_malloc(9);
+ if (*salt_malloc_p == NULL)
+ goto err;
+ }
+ if (RAND_pseudo_bytes((unsigned char *)*salt_p, 8) < 0)
+ goto err;
+
+ for (i = 0; i < 8; i++)
+ (*salt_p)[i] = cov_2char[(*salt_p)[i] & 0x3f]; /* 6 bits */
+ (*salt_p)[8] = 0;
+ }
+#endif /* !NO_MD5CRYPT_1 */
+ }
+
+ assert(*salt_p != NULL);
+
+ /* truncate password if necessary */
+ if ((strlen(passwd) > pw_maxlen))
+ {
+ if (!quiet)
+ /* XXX: really we should know how to print a size_t, not cast it */
+ BIO_printf(bio_err, "Warning: truncating password to %u characters\n", (unsigned)pw_maxlen);
+ passwd[pw_maxlen] = 0;
+ }
+ assert(strlen(passwd) <= pw_maxlen);
+
+ /* now compute password hash */
+#ifndef OPENSSL_NO_DES
+ if (usecrypt)
+ hash = DES_crypt(passwd, *salt_p);
+#endif
+#ifndef NO_MD5CRYPT_1
+ if (use1 || useapr1)
+ hash = md5crypt(passwd, (use1 ? "1" : "apr1"), *salt_p);
+#endif
+ assert(hash != NULL);
+
+ if (table && !reverse)
+ BIO_printf(out, "%s\t%s\n", passwd, hash);
+ else if (table && reverse)
+ BIO_printf(out, "%s\t%s\n", hash, passwd);
+ else
+ BIO_printf(out, "%s\n", hash);
+ return 1;
+
+err:
+ return 0;
+ }
+#else
+
+int MAIN(int argc, char **argv)
+ {
+ fputs("Program not available.\n", stderr)
+ OPENSSL_EXIT(1);
+ }
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-15 19:37:33 +0000