diff options
Diffstat (limited to 'apps/passwd.c')
-rw-r--r-- | apps/passwd.c | 502 |
1 files changed, 0 insertions, 502 deletions
diff --git a/apps/passwd.c b/apps/passwd.c deleted file mode 100644 index 6851a9927d..0000000000 --- a/apps/passwd.c +++ /dev/null @@ -1,502 +0,0 @@ -/* apps/passwd.c */ - -#if defined NO_MD5 || defined CHARSET_EBCDIC -# define NO_MD5CRYPT_1 -#endif - -#if !defined(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 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 - * -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; - 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); - out = BIO_new(BIO_s_file()); - if (out == NULL) - goto err; - BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT); -#ifdef 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], "-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 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 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, "-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: ", 0) != 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); - } - -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); - 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..$.......md5hash..........\0" */ - unsigned char buf[MD5_DIGEST_LENGTH]; - char *salt_out; - int n, i; - MD5_CTX md; - size_t passwd_len, salt_len; - - passwd_len = strlen(passwd); - out_buf[0] = '$'; - 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$..salt.." */ - salt_out = out_buf + 6; - salt_len = strlen(salt_out); - assert(salt_len <= 8); - - MD5_Init(&md); - MD5_Update(&md, passwd, passwd_len); - MD5_Update(&md, "$", 1); - MD5_Update(&md, magic, strlen(magic)); - MD5_Update(&md, "$", 1); - MD5_Update(&md, salt_out, salt_len); - - { - MD5_CTX md2; - - MD5_Init(&md2); - MD5_Update(&md2, passwd, passwd_len); - MD5_Update(&md2, salt_out, salt_len); - MD5_Update(&md2, passwd, passwd_len); - MD5_Final(buf, &md2); - } - for (i = passwd_len; i > sizeof buf; i -= sizeof buf) - MD5_Update(&md, buf, sizeof buf); - MD5_Update(&md, buf, i); - - n = passwd_len; - while (n) - { - MD5_Update(&md, (n & 1) ? "\0" : passwd, 1); - n >>= 1; - } - MD5_Final(buf, &md); - - for (i = 0; i < 1000; i++) - { - MD5_CTX md2; - - MD5_Init(&md2); - MD5_Update(&md2, (i & 1) ? (unsigned char *) passwd : buf, - (i & 1) ? passwd_len : sizeof buf); - if (i % 3) - MD5_Update(&md2, salt_out, salt_len); - if (i % 7) - MD5_Update(&md2, passwd, passwd_len); - MD5_Update(&md2, (i & 1) ? buf : (unsigned char *) passwd, - (i & 1) ? sizeof buf : passwd_len); - MD5_Final(buf, &md2); - } - - { - /* transform buf into output string */ - - unsigned char buf_perm[sizeof buf]; - int dest, source; - char *output; - - /* silly output permutation */ - for (dest = 0, source = 0; dest < 14; dest++, source = (source + 6) % 17) - buf_perm[dest] = buf[source]; - buf_perm[14] = buf[5]; - buf_perm[15] = buf[11]; -#ifndef PEDANTIC /* Unfortunately, this generates a "no effect" warning */ - assert(16 == sizeof buf_perm); -#endif - - output = salt_out + salt_len; - assert(output == out_buf + strlen(out_buf)); - - *output++ = '$'; - - 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)); - } - - 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 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 /* !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) - BIO_printf(bio_err, "Warning: truncating password to %u characters\n", pw_maxlen); - passwd[pw_maxlen] = 0; - } - assert(strlen(passwd) <= pw_maxlen); - - /* now compute password hash */ -#ifndef 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) - EXIT(1); - } -#endif |