LCOV - code coverage report
Current view: top level - third_party/openssl/crypto/asn1 - a_strex.c (source / functions) Hit Total Coverage
Test: tmp.zDYK9MVh93 Lines: 16 208 7.7 %
Date: 2015-10-10 Functions: 1 13 7.7 %

          Line data    Source code
       1             : /* a_strex.c */
       2             : /*
       3             :  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
       4             :  * 2000.
       5             :  */
       6             : /* ====================================================================
       7             :  * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
       8             :  *
       9             :  * Redistribution and use in source and binary forms, with or without
      10             :  * modification, are permitted provided that the following conditions
      11             :  * are met:
      12             :  *
      13             :  * 1. Redistributions of source code must retain the above copyright
      14             :  *    notice, this list of conditions and the following disclaimer.
      15             :  *
      16             :  * 2. Redistributions in binary form must reproduce the above copyright
      17             :  *    notice, this list of conditions and the following disclaimer in
      18             :  *    the documentation and/or other materials provided with the
      19             :  *    distribution.
      20             :  *
      21             :  * 3. All advertising materials mentioning features or use of this
      22             :  *    software must display the following acknowledgment:
      23             :  *    "This product includes software developed by the OpenSSL Project
      24             :  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
      25             :  *
      26             :  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
      27             :  *    endorse or promote products derived from this software without
      28             :  *    prior written permission. For written permission, please contact
      29             :  *    licensing@OpenSSL.org.
      30             :  *
      31             :  * 5. Products derived from this software may not be called "OpenSSL"
      32             :  *    nor may "OpenSSL" appear in their names without prior written
      33             :  *    permission of the OpenSSL Project.
      34             :  *
      35             :  * 6. Redistributions of any form whatsoever must retain the following
      36             :  *    acknowledgment:
      37             :  *    "This product includes software developed by the OpenSSL Project
      38             :  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
      39             :  *
      40             :  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
      41             :  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      42             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
      43             :  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
      44             :  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      45             :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      46             :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      47             :  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      48             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      49             :  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      50             :  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
      51             :  * OF THE POSSIBILITY OF SUCH DAMAGE.
      52             :  * ====================================================================
      53             :  *
      54             :  * This product includes cryptographic software written by Eric Young
      55             :  * (eay@cryptsoft.com).  This product includes software written by Tim
      56             :  * Hudson (tjh@cryptsoft.com).
      57             :  *
      58             :  */
      59             : 
      60             : #include <stdio.h>
      61             : #include <string.h>
      62             : #include "cryptlib.h"
      63             : #include <openssl/crypto.h>
      64             : #include <openssl/x509.h>
      65             : #include <openssl/asn1.h>
      66             : 
      67             : #include "charmap.h"
      68             : 
      69             : /*
      70             :  * ASN1_STRING_print_ex() and X509_NAME_print_ex(). Enhanced string and name
      71             :  * printing routines handling multibyte characters, RFC2253 and a host of
      72             :  * other options.
      73             :  */
      74             : 
      75             : #define CHARTYPE_BS_ESC         (ASN1_STRFLGS_ESC_2253 | CHARTYPE_FIRST_ESC_2253 | CHARTYPE_LAST_ESC_2253)
      76             : 
      77             : #define ESC_FLAGS (ASN1_STRFLGS_ESC_2253 | \
      78             :                   ASN1_STRFLGS_ESC_QUOTE | \
      79             :                   ASN1_STRFLGS_ESC_CTRL | \
      80             :                   ASN1_STRFLGS_ESC_MSB)
      81             : 
      82             : /*
      83             :  * Three IO functions for sending data to memory, a BIO and and a FILE
      84             :  * pointer.
      85             :  */
      86             : #if 0                           /* never used */
      87             : static int send_mem_chars(void *arg, const void *buf, int len)
      88             : {
      89             :     unsigned char **out = arg;
      90             :     if (!out)
      91             :         return 1;
      92             :     memcpy(*out, buf, len);
      93             :     *out += len;
      94             :     return 1;
      95             : }
      96             : #endif
      97             : 
      98           0 : static int send_bio_chars(void *arg, const void *buf, int len)
      99             : {
     100           0 :     if (!arg)
     101             :         return 1;
     102           0 :     if (BIO_write(arg, buf, len) != len)
     103             :         return 0;
     104           0 :     return 1;
     105             : }
     106             : 
     107           0 : static int send_fp_chars(void *arg, const void *buf, int len)
     108             : {
     109           0 :     if (!arg)
     110             :         return 1;
     111           0 :     if (fwrite(buf, 1, len, arg) != (unsigned int)len)
     112             :         return 0;
     113           0 :     return 1;
     114             : }
     115             : 
     116             : typedef int char_io (void *arg, const void *buf, int len);
     117             : 
     118             : /*
     119             :  * This function handles display of strings, one character at a time. It is
     120             :  * passed an unsigned long for each character because it could come from 2 or
     121             :  * even 4 byte forms.
     122             :  */
     123             : 
     124           0 : static int do_esc_char(unsigned long c, unsigned char flags, char *do_quotes,
     125             :                        char_io *io_ch, void *arg)
     126             : {
     127             :     unsigned char chflgs, chtmp;
     128             :     char tmphex[HEX_SIZE(long) + 3];
     129             : 
     130           0 :     if (c > 0xffffffffL)
     131             :         return -1;
     132           0 :     if (c > 0xffff) {
     133           0 :         BIO_snprintf(tmphex, sizeof tmphex, "\\W%08lX", c);
     134           0 :         if (!io_ch(arg, tmphex, 10))
     135             :             return -1;
     136           0 :         return 10;
     137             :     }
     138           0 :     if (c > 0xff) {
     139           0 :         BIO_snprintf(tmphex, sizeof tmphex, "\\U%04lX", c);
     140           0 :         if (!io_ch(arg, tmphex, 6))
     141             :             return -1;
     142           0 :         return 6;
     143             :     }
     144           0 :     chtmp = (unsigned char)c;
     145           0 :     if (chtmp > 0x7f)
     146           0 :         chflgs = flags & ASN1_STRFLGS_ESC_MSB;
     147             :     else
     148           0 :         chflgs = char_type[chtmp] & flags;
     149           0 :     if (chflgs & CHARTYPE_BS_ESC) {
     150             :         /* If we don't escape with quotes, signal we need quotes */
     151           0 :         if (chflgs & ASN1_STRFLGS_ESC_QUOTE) {
     152           0 :             if (do_quotes)
     153           0 :                 *do_quotes = 1;
     154           0 :             if (!io_ch(arg, &chtmp, 1))
     155             :                 return -1;
     156           0 :             return 1;
     157             :         }
     158           0 :         if (!io_ch(arg, "\\", 1))
     159             :             return -1;
     160           0 :         if (!io_ch(arg, &chtmp, 1))
     161             :             return -1;
     162           0 :         return 2;
     163             :     }
     164           0 :     if (chflgs & (ASN1_STRFLGS_ESC_CTRL | ASN1_STRFLGS_ESC_MSB)) {
     165           0 :         BIO_snprintf(tmphex, 11, "\\%02X", chtmp);
     166           0 :         if (!io_ch(arg, tmphex, 3))
     167             :             return -1;
     168           0 :         return 3;
     169             :     }
     170             :     /*
     171             :      * If we get this far and do any escaping at all must escape the escape
     172             :      * character itself: backslash.
     173             :      */
     174           0 :     if (chtmp == '\\' && flags & ESC_FLAGS) {
     175           0 :         if (!io_ch(arg, "\\\\", 2))
     176             :             return -1;
     177           0 :         return 2;
     178             :     }
     179           0 :     if (!io_ch(arg, &chtmp, 1))
     180             :         return -1;
     181           0 :     return 1;
     182             : }
     183             : 
     184             : #define BUF_TYPE_WIDTH_MASK     0x7
     185             : #define BUF_TYPE_CONVUTF8       0x8
     186             : 
     187             : /*
     188             :  * This function sends each character in a buffer to do_esc_char(). It
     189             :  * interprets the content formats and converts to or from UTF8 as
     190             :  * appropriate.
     191             :  */
     192             : 
     193           0 : static int do_buf(unsigned char *buf, int buflen,
     194             :                   int type, unsigned char flags, char *quotes, char_io *io_ch,
     195             :                   void *arg)
     196             : {
     197             :     int i, outlen, len;
     198             :     unsigned char orflags, *p, *q;
     199             :     unsigned long c;
     200             :     p = buf;
     201           0 :     q = buf + buflen;
     202             :     outlen = 0;
     203           0 :     while (p != q) {
     204           0 :         if (p == buf && flags & ASN1_STRFLGS_ESC_2253)
     205             :             orflags = CHARTYPE_FIRST_ESC_2253;
     206             :         else
     207             :             orflags = 0;
     208           0 :         switch (type & BUF_TYPE_WIDTH_MASK) {
     209             :         case 4:
     210           0 :             c = ((unsigned long)*p++) << 24;
     211           0 :             c |= ((unsigned long)*p++) << 16;
     212           0 :             c |= ((unsigned long)*p++) << 8;
     213           0 :             c |= *p++;
     214           0 :             break;
     215             : 
     216             :         case 2:
     217           0 :             c = ((unsigned long)*p++) << 8;
     218           0 :             c |= *p++;
     219           0 :             break;
     220             : 
     221             :         case 1:
     222           0 :             c = *p++;
     223           0 :             break;
     224             : 
     225             :         case 0:
     226           0 :             i = UTF8_getc(p, buflen, &c);
     227           0 :             if (i < 0)
     228             :                 return -1;      /* Invalid UTF8String */
     229           0 :             p += i;
     230           0 :             break;
     231             :         default:
     232             :             return -1;          /* invalid width */
     233             :         }
     234           0 :         if (p == q && flags & ASN1_STRFLGS_ESC_2253)
     235             :             orflags = CHARTYPE_LAST_ESC_2253;
     236           0 :         if (type & BUF_TYPE_CONVUTF8) {
     237             :             unsigned char utfbuf[6];
     238             :             int utflen;
     239           0 :             utflen = UTF8_putc(utfbuf, sizeof utfbuf, c);
     240           0 :             for (i = 0; i < utflen; i++) {
     241             :                 /*
     242             :                  * We don't need to worry about setting orflags correctly
     243             :                  * because if utflen==1 its value will be correct anyway
     244             :                  * otherwise each character will be > 0x7f and so the
     245             :                  * character will never be escaped on first and last.
     246             :                  */
     247           0 :                 len =
     248           0 :                     do_esc_char(utfbuf[i], (unsigned char)(flags | orflags),
     249             :                                 quotes, io_ch, arg);
     250           0 :                 if (len < 0)
     251           0 :                     return -1;
     252           0 :                 outlen += len;
     253             :             }
     254             :         } else {
     255           0 :             len =
     256           0 :                 do_esc_char(c, (unsigned char)(flags | orflags), quotes,
     257             :                             io_ch, arg);
     258           0 :             if (len < 0)
     259             :                 return -1;
     260           0 :             outlen += len;
     261             :         }
     262             :     }
     263             :     return outlen;
     264             : }
     265             : 
     266             : /* This function hex dumps a buffer of characters */
     267             : 
     268           0 : static int do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf,
     269             :                        int buflen)
     270             : {
     271             :     static const char hexdig[] = "0123456789ABCDEF";
     272             :     unsigned char *p, *q;
     273             :     char hextmp[2];
     274           0 :     if (arg) {
     275             :         p = buf;
     276           0 :         q = buf + buflen;
     277           0 :         while (p != q) {
     278           0 :             hextmp[0] = hexdig[*p >> 4];
     279           0 :             hextmp[1] = hexdig[*p & 0xf];
     280           0 :             if (!io_ch(arg, hextmp, 2))
     281             :                 return -1;
     282           0 :             p++;
     283             :         }
     284             :     }
     285           0 :     return buflen << 1;
     286             : }
     287             : 
     288             : /*
     289             :  * "dump" a string. This is done when the type is unknown, or the flags
     290             :  * request it. We can either dump the content octets or the entire DER
     291             :  * encoding. This uses the RFC2253 #01234 format.
     292             :  */
     293             : 
     294           0 : static int do_dump(unsigned long lflags, char_io *io_ch, void *arg,
     295             :                    ASN1_STRING *str)
     296             : {
     297             :     /*
     298             :      * Placing the ASN1_STRING in a temp ASN1_TYPE allows the DER encoding to
     299             :      * readily obtained
     300             :      */
     301             :     ASN1_TYPE t;
     302             :     unsigned char *der_buf, *p;
     303             :     int outlen, der_len;
     304             : 
     305           0 :     if (!io_ch(arg, "#", 1))
     306             :         return -1;
     307             :     /* If we don't dump DER encoding just dump content octets */
     308           0 :     if (!(lflags & ASN1_STRFLGS_DUMP_DER)) {
     309           0 :         outlen = do_hex_dump(io_ch, arg, str->data, str->length);
     310           0 :         if (outlen < 0)
     311             :             return -1;
     312           0 :         return outlen + 1;
     313             :     }
     314           0 :     t.type = str->type;
     315           0 :     t.value.ptr = (char *)str;
     316           0 :     der_len = i2d_ASN1_TYPE(&t, NULL);
     317           0 :     der_buf = OPENSSL_malloc(der_len);
     318           0 :     if (!der_buf)
     319             :         return -1;
     320           0 :     p = der_buf;
     321           0 :     i2d_ASN1_TYPE(&t, &p);
     322           0 :     outlen = do_hex_dump(io_ch, arg, der_buf, der_len);
     323           0 :     OPENSSL_free(der_buf);
     324           0 :     if (outlen < 0)
     325             :         return -1;
     326           0 :     return outlen + 1;
     327             : }
     328             : 
     329             : /*
     330             :  * Lookup table to convert tags to character widths, 0 = UTF8 encoded, -1 is
     331             :  * used for non string types otherwise it is the number of bytes per
     332             :  * character
     333             :  */
     334             : 
     335             : static const signed char tag2nbyte[] = {
     336             :     -1, -1, -1, -1, -1,         /* 0-4 */
     337             :     -1, -1, -1, -1, -1,         /* 5-9 */
     338             :     -1, -1, 0, -1,              /* 10-13 */
     339             :     -1, -1, -1, -1,             /* 15-17 */
     340             :     -1, 1, 1,                   /* 18-20 */
     341             :     -1, 1, 1, 1,                /* 21-24 */
     342             :     -1, 1, -1,                  /* 25-27 */
     343             :     4, -1, 2                    /* 28-30 */
     344             : };
     345             : 
     346             : /*
     347             :  * This is the main function, print out an ASN1_STRING taking note of various
     348             :  * escape and display options. Returns number of characters written or -1 if
     349             :  * an error occurred.
     350             :  */
     351             : 
     352           0 : static int do_print_ex(char_io *io_ch, void *arg, unsigned long lflags,
     353             :                        ASN1_STRING *str)
     354             : {
     355             :     int outlen, len;
     356             :     int type;
     357             :     char quotes;
     358             :     unsigned char flags;
     359           0 :     quotes = 0;
     360             :     /* Keep a copy of escape flags */
     361           0 :     flags = (unsigned char)(lflags & ESC_FLAGS);
     362             : 
     363           0 :     type = str->type;
     364             : 
     365             :     outlen = 0;
     366             : 
     367           0 :     if (lflags & ASN1_STRFLGS_SHOW_TYPE) {
     368             :         const char *tagname;
     369           0 :         tagname = ASN1_tag2str(type);
     370           0 :         outlen += strlen(tagname);
     371           0 :         if (!io_ch(arg, tagname, outlen) || !io_ch(arg, ":", 1))
     372             :             return -1;
     373           0 :         outlen++;
     374             :     }
     375             : 
     376             :     /* Decide what to do with type, either dump content or display it */
     377             : 
     378             :     /* Dump everything */
     379           0 :     if (lflags & ASN1_STRFLGS_DUMP_ALL)
     380             :         type = -1;
     381             :     /* Ignore the string type */
     382           0 :     else if (lflags & ASN1_STRFLGS_IGNORE_TYPE)
     383             :         type = 1;
     384             :     else {
     385             :         /* Else determine width based on type */
     386           0 :         if ((type > 0) && (type < 31))
     387           0 :             type = tag2nbyte[type];
     388             :         else
     389             :             type = -1;
     390           0 :         if ((type == -1) && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN))
     391             :             type = 1;
     392             :     }
     393             : 
     394           0 :     if (type == -1) {
     395           0 :         len = do_dump(lflags, io_ch, arg, str);
     396           0 :         if (len < 0)
     397             :             return -1;
     398           0 :         outlen += len;
     399           0 :         return outlen;
     400             :     }
     401             : 
     402           0 :     if (lflags & ASN1_STRFLGS_UTF8_CONVERT) {
     403             :         /*
     404             :          * Note: if string is UTF8 and we want to convert to UTF8 then we
     405             :          * just interpret it as 1 byte per character to avoid converting
     406             :          * twice.
     407             :          */
     408           0 :         if (!type)
     409             :             type = 1;
     410             :         else
     411           0 :             type |= BUF_TYPE_CONVUTF8;
     412             :     }
     413             : 
     414           0 :     len = do_buf(str->data, str->length, type, flags, &quotes, io_ch, NULL);
     415           0 :     if (len < 0)
     416             :         return -1;
     417           0 :     outlen += len;
     418           0 :     if (quotes)
     419           0 :         outlen += 2;
     420           0 :     if (!arg)
     421             :         return outlen;
     422           0 :     if (quotes && !io_ch(arg, "\"", 1))
     423             :         return -1;
     424           0 :     if (do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0)
     425             :         return -1;
     426           0 :     if (quotes && !io_ch(arg, "\"", 1))
     427             :         return -1;
     428           0 :     return outlen;
     429             : }
     430             : 
     431             : /* Used for line indenting: print 'indent' spaces */
     432             : 
     433             : static int do_indent(char_io *io_ch, void *arg, int indent)
     434             : {
     435             :     int i;
     436           0 :     for (i = 0; i < indent; i++)
     437           0 :         if (!io_ch(arg, " ", 1))
     438             :             return 0;
     439             :     return 1;
     440             : }
     441             : 
     442             : #define FN_WIDTH_LN     25
     443             : #define FN_WIDTH_SN     10
     444             : 
     445           0 : static int do_name_ex(char_io *io_ch, void *arg, X509_NAME *n,
     446             :                       int indent, unsigned long flags)
     447             : {
     448             :     int i, prev = -1, orflags, cnt;
     449             :     int fn_opt, fn_nid;
     450             :     ASN1_OBJECT *fn;
     451             :     ASN1_STRING *val;
     452             :     X509_NAME_ENTRY *ent;
     453             :     char objtmp[80];
     454             :     const char *objbuf;
     455             :     int outlen, len;
     456             :     char *sep_dn, *sep_mv, *sep_eq;
     457             :     int sep_dn_len, sep_mv_len, sep_eq_len;
     458           0 :     if (indent < 0)
     459             :         indent = 0;
     460             :     outlen = indent;
     461           0 :     if (!do_indent(io_ch, arg, indent))
     462             :         return -1;
     463           0 :     switch (flags & XN_FLAG_SEP_MASK) {
     464             :     case XN_FLAG_SEP_MULTILINE:
     465             :         sep_dn = "\n";
     466             :         sep_dn_len = 1;
     467             :         sep_mv = " + ";
     468             :         sep_mv_len = 3;
     469             :         break;
     470             : 
     471             :     case XN_FLAG_SEP_COMMA_PLUS:
     472             :         sep_dn = ",";
     473             :         sep_dn_len = 1;
     474             :         sep_mv = "+";
     475             :         sep_mv_len = 1;
     476             :         indent = 0;
     477           0 :         break;
     478             : 
     479             :     case XN_FLAG_SEP_CPLUS_SPC:
     480             :         sep_dn = ", ";
     481             :         sep_dn_len = 2;
     482             :         sep_mv = " + ";
     483             :         sep_mv_len = 3;
     484             :         indent = 0;
     485           0 :         break;
     486             : 
     487             :     case XN_FLAG_SEP_SPLUS_SPC:
     488             :         sep_dn = "; ";
     489             :         sep_dn_len = 2;
     490             :         sep_mv = " + ";
     491             :         sep_mv_len = 3;
     492             :         indent = 0;
     493           0 :         break;
     494             : 
     495             :     default:
     496             :         return -1;
     497             :     }
     498             : 
     499           0 :     if (flags & XN_FLAG_SPC_EQ) {
     500             :         sep_eq = " = ";
     501             :         sep_eq_len = 3;
     502             :     } else {
     503             :         sep_eq = "=";
     504             :         sep_eq_len = 1;
     505             :     }
     506             : 
     507           0 :     fn_opt = flags & XN_FLAG_FN_MASK;
     508             : 
     509           0 :     cnt = X509_NAME_entry_count(n);
     510           0 :     for (i = 0; i < cnt; i++) {
     511           0 :         if (flags & XN_FLAG_DN_REV)
     512           0 :             ent = X509_NAME_get_entry(n, cnt - i - 1);
     513             :         else
     514           0 :             ent = X509_NAME_get_entry(n, i);
     515           0 :         if (prev != -1) {
     516           0 :             if (prev == ent->set) {
     517           0 :                 if (!io_ch(arg, sep_mv, sep_mv_len))
     518             :                     return -1;
     519           0 :                 outlen += sep_mv_len;
     520             :             } else {
     521           0 :                 if (!io_ch(arg, sep_dn, sep_dn_len))
     522             :                     return -1;
     523           0 :                 outlen += sep_dn_len;
     524           0 :                 if (!do_indent(io_ch, arg, indent))
     525             :                     return -1;
     526           0 :                 outlen += indent;
     527             :             }
     528             :         }
     529           0 :         prev = ent->set;
     530           0 :         fn = X509_NAME_ENTRY_get_object(ent);
     531           0 :         val = X509_NAME_ENTRY_get_data(ent);
     532           0 :         fn_nid = OBJ_obj2nid(fn);
     533           0 :         if (fn_opt != XN_FLAG_FN_NONE) {
     534             :             int objlen, fld_len;
     535           0 :             if ((fn_opt == XN_FLAG_FN_OID) || (fn_nid == NID_undef)) {
     536           0 :                 OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1);
     537             :                 fld_len = 0;    /* XXX: what should this be? */
     538             :                 objbuf = objtmp;
     539             :             } else {
     540           0 :                 if (fn_opt == XN_FLAG_FN_SN) {
     541             :                     fld_len = FN_WIDTH_SN;
     542           0 :                     objbuf = OBJ_nid2sn(fn_nid);
     543           0 :                 } else if (fn_opt == XN_FLAG_FN_LN) {
     544             :                     fld_len = FN_WIDTH_LN;
     545           0 :                     objbuf = OBJ_nid2ln(fn_nid);
     546             :                 } else {
     547             :                     fld_len = 0; /* XXX: what should this be? */
     548             :                     objbuf = "";
     549             :                 }
     550             :             }
     551           0 :             objlen = strlen(objbuf);
     552           0 :             if (!io_ch(arg, objbuf, objlen))
     553             :                 return -1;
     554           0 :             if ((objlen < fld_len) && (flags & XN_FLAG_FN_ALIGN)) {
     555           0 :                 if (!do_indent(io_ch, arg, fld_len - objlen))
     556             :                     return -1;
     557           0 :                 outlen += fld_len - objlen;
     558             :             }
     559           0 :             if (!io_ch(arg, sep_eq, sep_eq_len))
     560             :                 return -1;
     561           0 :             outlen += objlen + sep_eq_len;
     562             :         }
     563             :         /*
     564             :          * If the field name is unknown then fix up the DER dump flag. We
     565             :          * might want to limit this further so it will DER dump on anything
     566             :          * other than a few 'standard' fields.
     567             :          */
     568           0 :         if ((fn_nid == NID_undef) && (flags & XN_FLAG_DUMP_UNKNOWN_FIELDS))
     569             :             orflags = ASN1_STRFLGS_DUMP_ALL;
     570             :         else
     571             :             orflags = 0;
     572             : 
     573           0 :         len = do_print_ex(io_ch, arg, flags | orflags, val);
     574           0 :         if (len < 0)
     575             :             return -1;
     576           0 :         outlen += len;
     577             :     }
     578             :     return outlen;
     579             : }
     580             : 
     581             : /* Wrappers round the main functions */
     582             : 
     583           0 : int X509_NAME_print_ex(BIO *out, X509_NAME *nm, int indent,
     584             :                        unsigned long flags)
     585             : {
     586           0 :     if (flags == XN_FLAG_COMPAT)
     587           0 :         return X509_NAME_print(out, nm, indent);
     588           0 :     return do_name_ex(send_bio_chars, out, nm, indent, flags);
     589             : }
     590             : 
     591             : #ifndef OPENSSL_NO_FP_API
     592           0 : int X509_NAME_print_ex_fp(FILE *fp, X509_NAME *nm, int indent,
     593             :                           unsigned long flags)
     594             : {
     595           0 :     if (flags == XN_FLAG_COMPAT) {
     596             :         BIO *btmp;
     597             :         int ret;
     598           0 :         btmp = BIO_new_fp(fp, BIO_NOCLOSE);
     599           0 :         if (!btmp)
     600             :             return -1;
     601           0 :         ret = X509_NAME_print(btmp, nm, indent);
     602           0 :         BIO_free(btmp);
     603           0 :         return ret;
     604             :     }
     605           0 :     return do_name_ex(send_fp_chars, fp, nm, indent, flags);
     606             : }
     607             : #endif
     608             : 
     609           0 : int ASN1_STRING_print_ex(BIO *out, ASN1_STRING *str, unsigned long flags)
     610             : {
     611           0 :     return do_print_ex(send_bio_chars, out, flags, str);
     612             : }
     613             : 
     614             : #ifndef OPENSSL_NO_FP_API
     615           0 : int ASN1_STRING_print_ex_fp(FILE *fp, ASN1_STRING *str, unsigned long flags)
     616             : {
     617           0 :     return do_print_ex(send_fp_chars, fp, flags, str);
     618             : }
     619             : #endif
     620             : 
     621             : /*
     622             :  * Utility function: convert any string type to UTF8, returns number of bytes
     623             :  * in output string or a negative error code
     624             :  */
     625             : 
     626       17904 : int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in)
     627             : {
     628       17904 :     ASN1_STRING stmp, *str = &stmp;
     629             :     int mbflag, type, ret;
     630       17904 :     if (!in)
     631             :         return -1;
     632       17904 :     type = in->type;
     633       17904 :     if ((type < 0) || (type > 30))
     634             :         return -1;
     635       17904 :     mbflag = tag2nbyte[type];
     636       17904 :     if (mbflag == -1)
     637             :         return -1;
     638       17904 :     mbflag |= MBSTRING_FLAG;
     639       17904 :     stmp.data = NULL;
     640       17904 :     stmp.length = 0;
     641       17904 :     stmp.flags = 0;
     642       17904 :     ret =
     643       17904 :         ASN1_mbstring_copy(&str, in->data, in->length, mbflag,
     644             :                            B_ASN1_UTF8STRING);
     645       17904 :     if (ret < 0)
     646             :         return ret;
     647       17904 :     *out = stmp.data;
     648       17904 :     return stmp.length;
     649             : }

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