--- /dev/null
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/x509.h>
+
+#include <inttypes.h>
+#include <string.h>
+
+#include <openssl/asn1.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+
+#include "charmap.h"
+#include "../asn1/asn1_locl.h"
+
+/*
+ * ASN1_STRING_print_ex() and X509_NAME_print_ex(). Enhanced string and name
+ * printing routines handling multibyte characters, RFC2253 and a host of
+ * other options.
+ */
+
+#define CHARTYPE_BS_ESC (ASN1_STRFLGS_ESC_2253 | CHARTYPE_FIRST_ESC_2253 | CHARTYPE_LAST_ESC_2253)
+
+#define ESC_FLAGS (ASN1_STRFLGS_ESC_2253 | \
+ ASN1_STRFLGS_ESC_QUOTE | \
+ ASN1_STRFLGS_ESC_CTRL | \
+ ASN1_STRFLGS_ESC_MSB)
+
+static int send_bio_chars(void *arg, const void *buf, int len)
+{
+ if (!arg)
+ return 1;
+ if (BIO_write(arg, buf, len) != len)
+ return 0;
+ return 1;
+}
+
+static int send_fp_chars(void *arg, const void *buf, int len)
+{
+ if (!arg)
+ return 1;
+ if (fwrite(buf, 1, len, arg) != (unsigned int)len)
+ return 0;
+ return 1;
+}
+
+typedef int char_io (void *arg, const void *buf, int len);
+
+/*
+ * This function handles display of strings, one character at a time. It is
+ * passed an unsigned long for each character because it could come from 2 or
+ * even 4 byte forms.
+ */
+
+#define HEX_SIZE(type) (sizeof(type)*2)
+
+static int do_esc_char(uint32_t c, unsigned char flags, char *do_quotes,
+ char_io *io_ch, void *arg)
+{
+ unsigned char chflgs, chtmp;
+ char tmphex[HEX_SIZE(uint32_t) + 3];
+
+ if (c > 0xffff) {
+ BIO_snprintf(tmphex, sizeof tmphex, "\\W%08" PRIX32, c);
+ if (!io_ch(arg, tmphex, 10))
+ return -1;
+ return 10;
+ }
+ if (c > 0xff) {
+ BIO_snprintf(tmphex, sizeof tmphex, "\\U%04" PRIX32, c);
+ if (!io_ch(arg, tmphex, 6))
+ return -1;
+ return 6;
+ }
+ chtmp = (unsigned char)c;
+ if (chtmp > 0x7f)
+ chflgs = flags & ASN1_STRFLGS_ESC_MSB;
+ else
+ chflgs = char_type[chtmp] & flags;
+ if (chflgs & CHARTYPE_BS_ESC) {
+ /* If we don't escape with quotes, signal we need quotes */
+ if (chflgs & ASN1_STRFLGS_ESC_QUOTE) {
+ if (do_quotes)
+ *do_quotes = 1;
+ if (!io_ch(arg, &chtmp, 1))
+ return -1;
+ return 1;
+ }
+ if (!io_ch(arg, "\\", 1))
+ return -1;
+ if (!io_ch(arg, &chtmp, 1))
+ return -1;
+ return 2;
+ }
+ if (chflgs & (ASN1_STRFLGS_ESC_CTRL | ASN1_STRFLGS_ESC_MSB)) {
+ BIO_snprintf(tmphex, 11, "\\%02X", chtmp);
+ if (!io_ch(arg, tmphex, 3))
+ return -1;
+ return 3;
+ }
+ /*
+ * If we get this far and do any escaping at all must escape the escape
+ * character itself: backslash.
+ */
+ if (chtmp == '\\' && flags & ESC_FLAGS) {
+ if (!io_ch(arg, "\\\\", 2))
+ return -1;
+ return 2;
+ }
+ if (!io_ch(arg, &chtmp, 1))
+ return -1;
+ return 1;
+}
+
+#define BUF_TYPE_WIDTH_MASK 0x7
+#define BUF_TYPE_CONVUTF8 0x8
+
+/*
+ * This function sends each character in a buffer to do_esc_char(). It
+ * interprets the content formats and converts to or from UTF8 as
+ * appropriate.
+ */
+
+static int do_buf(unsigned char *buf, int buflen,
+ int type, unsigned char flags, char *quotes, char_io *io_ch,
+ void *arg)
+{
+ int i, outlen, len;
+ unsigned char orflags, *p, *q;
+ uint32_t c;
+ p = buf;
+ q = buf + buflen;
+ outlen = 0;
+ while (p != q) {
+ if (p == buf && flags & ASN1_STRFLGS_ESC_2253)
+ orflags = CHARTYPE_FIRST_ESC_2253;
+ else
+ orflags = 0;
+ switch (type & BUF_TYPE_WIDTH_MASK) {
+ case 4:
+ c = ((uint32_t)*p++) << 24;
+ c |= ((uint32_t)*p++) << 16;
+ c |= ((uint32_t)*p++) << 8;
+ c |= *p++;
+ break;
+
+ case 2:
+ c = ((uint32_t)*p++) << 8;
+ c |= *p++;
+ break;
+
+ case 1:
+ c = *p++;
+ break;
+
+ case 0:
+ i = UTF8_getc(p, buflen, &c);
+ if (i < 0)
+ return -1; /* Invalid UTF8String */
+ p += i;
+ break;
+ default:
+ return -1; /* invalid width */
+ }
+ if (p == q && flags & ASN1_STRFLGS_ESC_2253)
+ orflags = CHARTYPE_LAST_ESC_2253;
+ if (type & BUF_TYPE_CONVUTF8) {
+ unsigned char utfbuf[6];
+ int utflen;
+ utflen = UTF8_putc(utfbuf, sizeof utfbuf, c);
+ for (i = 0; i < utflen; i++) {
+ /*
+ * We don't need to worry about setting orflags correctly
+ * because if utflen==1 its value will be correct anyway
+ * otherwise each character will be > 0x7f and so the
+ * character will never be escaped on first and last.
+ */
+ len =
+ do_esc_char(utfbuf[i], (unsigned char)(flags | orflags),
+ quotes, io_ch, arg);
+ if (len < 0)
+ return -1;
+ outlen += len;
+ }
+ } else {
+ len =
+ do_esc_char(c, (unsigned char)(flags | orflags), quotes,
+ io_ch, arg);
+ if (len < 0)
+ return -1;
+ outlen += len;
+ }
+ }
+ return outlen;
+}
+
+/* This function hex dumps a buffer of characters */
+
+static int do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf,
+ int buflen)
+{
+ static const char hexdig[] = "0123456789ABCDEF";
+ unsigned char *p, *q;
+ char hextmp[2];
+ if (arg) {
+ p = buf;
+ q = buf + buflen;
+ while (p != q) {
+ hextmp[0] = hexdig[*p >> 4];
+ hextmp[1] = hexdig[*p & 0xf];
+ if (!io_ch(arg, hextmp, 2))
+ return -1;
+ p++;
+ }
+ }
+ return buflen << 1;
+}
+
+/*
+ * "dump" a string. This is done when the type is unknown, or the flags
+ * request it. We can either dump the content octets or the entire DER
+ * encoding. This uses the RFC2253 #01234 format.
+ */
+
+static int do_dump(unsigned long lflags, char_io *io_ch, void *arg,
+ ASN1_STRING *str)
+{
+ /*
+ * Placing the ASN1_STRING in a temp ASN1_TYPE allows the DER encoding to
+ * readily obtained
+ */
+ ASN1_TYPE t;
+ unsigned char *der_buf, *p;
+ int outlen, der_len;
+
+ if (!io_ch(arg, "#", 1))
+ return -1;
+ /* If we don't dump DER encoding just dump content octets */
+ if (!(lflags & ASN1_STRFLGS_DUMP_DER)) {
+ outlen = do_hex_dump(io_ch, arg, str->data, str->length);
+ if (outlen < 0)
+ return -1;
+ return outlen + 1;
+ }
+ t.type = str->type;
+ t.value.ptr = (char *)str;
+ der_len = i2d_ASN1_TYPE(&t, NULL);
+ der_buf = OPENSSL_malloc(der_len);
+ if (!der_buf)
+ return -1;
+ p = der_buf;
+ i2d_ASN1_TYPE(&t, &p);
+ outlen = do_hex_dump(io_ch, arg, der_buf, der_len);
+ OPENSSL_free(der_buf);
+ if (outlen < 0)
+ return -1;
+ return outlen + 1;
+}
+
+/*
+ * Lookup table to convert tags to character widths, 0 = UTF8 encoded, -1 is
+ * used for non string types otherwise it is the number of bytes per
+ * character
+ */
+
+static const signed char tag2nbyte[] = {
+ -1, -1, -1, -1, -1, /* 0-4 */
+ -1, -1, -1, -1, -1, /* 5-9 */
+ -1, -1, 0, -1, /* 10-13 */
+ -1, -1, -1, -1, /* 15-17 */
+ 1, 1, 1, /* 18-20 */
+ -1, 1, 1, 1, /* 21-24 */
+ -1, 1, -1, /* 25-27 */
+ 4, -1, 2 /* 28-30 */
+};
+
+/*
+ * This is the main function, print out an ASN1_STRING taking note of various
+ * escape and display options. Returns number of characters written or -1 if
+ * an error occurred.
+ */
+
+static int do_print_ex(char_io *io_ch, void *arg, unsigned long lflags,
+ ASN1_STRING *str)
+{
+ int outlen, len;
+ int type;
+ char quotes;
+ unsigned char flags;
+ quotes = 0;
+ /* Keep a copy of escape flags */
+ flags = (unsigned char)(lflags & ESC_FLAGS);
+
+ type = str->type;
+
+ outlen = 0;
+
+ if (lflags & ASN1_STRFLGS_SHOW_TYPE) {
+ const char *tagname;
+ tagname = ASN1_tag2str(type);
+ outlen += strlen(tagname);
+ if (!io_ch(arg, tagname, outlen) || !io_ch(arg, ":", 1))
+ return -1;
+ outlen++;
+ }
+
+ /* Decide what to do with type, either dump content or display it */
+
+ /* Dump everything */
+ if (lflags & ASN1_STRFLGS_DUMP_ALL)
+ type = -1;
+ /* Ignore the string type */
+ else if (lflags & ASN1_STRFLGS_IGNORE_TYPE)
+ type = 1;
+ else {
+ /* Else determine width based on type */
+ if ((type > 0) && (type < 31))
+ type = tag2nbyte[type];
+ else
+ type = -1;
+ if ((type == -1) && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN))
+ type = 1;
+ }
+
+ if (type == -1) {
+ len = do_dump(lflags, io_ch, arg, str);
+ if (len < 0)
+ return -1;
+ outlen += len;
+ return outlen;
+ }
+
+ if (lflags & ASN1_STRFLGS_UTF8_CONVERT) {
+ /*
+ * Note: if string is UTF8 and we want to convert to UTF8 then we
+ * just interpret it as 1 byte per character to avoid converting
+ * twice.
+ */
+ if (!type)
+ type = 1;
+ else
+ type |= BUF_TYPE_CONVUTF8;
+ }
+
+ len = do_buf(str->data, str->length, type, flags, "es, io_ch, NULL);
+ if (len < 0)
+ return -1;
+ outlen += len;
+ if (quotes)
+ outlen += 2;
+ if (!arg)
+ return outlen;
+ if (quotes && !io_ch(arg, "\"", 1))
+ return -1;
+ if (do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0)
+ return -1;
+ if (quotes && !io_ch(arg, "\"", 1))
+ return -1;
+ return outlen;
+}
+
+/* Used for line indenting: print 'indent' spaces */
+
+static int do_indent(char_io *io_ch, void *arg, int indent)
+{
+ int i;
+ for (i = 0; i < indent; i++)
+ if (!io_ch(arg, " ", 1))
+ return 0;
+ return 1;
+}
+
+#define FN_WIDTH_LN 25
+#define FN_WIDTH_SN 10
+
+static int do_name_ex(char_io *io_ch, void *arg, X509_NAME *n,
+ int indent, unsigned long flags)
+{
+ int i, prev = -1, orflags, cnt;
+ int fn_opt, fn_nid;
+ ASN1_OBJECT *fn;
+ ASN1_STRING *val;
+ X509_NAME_ENTRY *ent;
+ char objtmp[80];
+ const char *objbuf;
+ int outlen, len;
+ const char *sep_dn, *sep_mv, *sep_eq;
+ int sep_dn_len, sep_mv_len, sep_eq_len;
+ if (indent < 0)
+ indent = 0;
+ outlen = indent;
+ if (!do_indent(io_ch, arg, indent))
+ return -1;
+ switch (flags & XN_FLAG_SEP_MASK) {
+ case XN_FLAG_SEP_MULTILINE:
+ sep_dn = "\n";
+ sep_dn_len = 1;
+ sep_mv = " + ";
+ sep_mv_len = 3;
+ break;
+
+ case XN_FLAG_SEP_COMMA_PLUS:
+ sep_dn = ",";
+ sep_dn_len = 1;
+ sep_mv = "+";
+ sep_mv_len = 1;
+ indent = 0;
+ break;
+
+ case XN_FLAG_SEP_CPLUS_SPC:
+ sep_dn = ", ";
+ sep_dn_len = 2;
+ sep_mv = " + ";
+ sep_mv_len = 3;
+ indent = 0;
+ break;
+
+ case XN_FLAG_SEP_SPLUS_SPC:
+ sep_dn = "; ";
+ sep_dn_len = 2;
+ sep_mv = " + ";
+ sep_mv_len = 3;
+ indent = 0;
+ break;
+
+ default:
+ return -1;
+ }
+
+ if (flags & XN_FLAG_SPC_EQ) {
+ sep_eq = " = ";
+ sep_eq_len = 3;
+ } else {
+ sep_eq = "=";
+ sep_eq_len = 1;
+ }
+
+ fn_opt = flags & XN_FLAG_FN_MASK;
+
+ cnt = X509_NAME_entry_count(n);
+ for (i = 0; i < cnt; i++) {
+ if (flags & XN_FLAG_DN_REV)
+ ent = X509_NAME_get_entry(n, cnt - i - 1);
+ else
+ ent = X509_NAME_get_entry(n, i);
+ if (prev != -1) {
+ if (prev == ent->set) {
+ if (!io_ch(arg, sep_mv, sep_mv_len))
+ return -1;
+ outlen += sep_mv_len;
+ } else {
+ if (!io_ch(arg, sep_dn, sep_dn_len))
+ return -1;
+ outlen += sep_dn_len;
+ if (!do_indent(io_ch, arg, indent))
+ return -1;
+ outlen += indent;
+ }
+ }
+ prev = ent->set;
+ fn = X509_NAME_ENTRY_get_object(ent);
+ val = X509_NAME_ENTRY_get_data(ent);
+ fn_nid = OBJ_obj2nid(fn);
+ if (fn_opt != XN_FLAG_FN_NONE) {
+ int objlen, fld_len;
+ if ((fn_opt == XN_FLAG_FN_OID) || (fn_nid == NID_undef)) {
+ OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1);
+ fld_len = 0; /* XXX: what should this be? */
+ objbuf = objtmp;
+ } else {
+ if (fn_opt == XN_FLAG_FN_SN) {
+ fld_len = FN_WIDTH_SN;
+ objbuf = OBJ_nid2sn(fn_nid);
+ } else if (fn_opt == XN_FLAG_FN_LN) {
+ fld_len = FN_WIDTH_LN;
+ objbuf = OBJ_nid2ln(fn_nid);
+ } else {
+ fld_len = 0; /* XXX: what should this be? */
+ objbuf = "";
+ }
+ }
+ objlen = strlen(objbuf);
+ if (!io_ch(arg, objbuf, objlen))
+ return -1;
+ if ((objlen < fld_len) && (flags & XN_FLAG_FN_ALIGN)) {
+ if (!do_indent(io_ch, arg, fld_len - objlen))
+ return -1;
+ outlen += fld_len - objlen;
+ }
+ if (!io_ch(arg, sep_eq, sep_eq_len))
+ return -1;
+ outlen += objlen + sep_eq_len;
+ }
+ /*
+ * If the field name is unknown then fix up the DER dump flag. We
+ * might want to limit this further so it will DER dump on anything
+ * other than a few 'standard' fields.
+ */
+ if ((fn_nid == NID_undef) && (flags & XN_FLAG_DUMP_UNKNOWN_FIELDS))
+ orflags = ASN1_STRFLGS_DUMP_ALL;
+ else
+ orflags = 0;
+
+ len = do_print_ex(io_ch, arg, flags | orflags, val);
+ if (len < 0)
+ return -1;
+ outlen += len;
+ }
+ return outlen;
+}
+
+/* Wrappers round the main functions */
+
+int X509_NAME_print_ex(BIO *out, X509_NAME *nm, int indent,
+ unsigned long flags)
+{
+ if (flags == XN_FLAG_COMPAT)
+ return X509_NAME_print(out, nm, indent);
+ return do_name_ex(send_bio_chars, out, nm, indent, flags);
+}
+
+#ifndef OPENSSL_NO_FP_API
+int X509_NAME_print_ex_fp(FILE *fp, X509_NAME *nm, int indent,
+ unsigned long flags)
+{
+ if (flags == XN_FLAG_COMPAT) {
+ BIO *btmp;
+ int ret;
+ btmp = BIO_new_fp(fp, BIO_NOCLOSE);
+ if (!btmp)
+ return -1;
+ ret = X509_NAME_print(btmp, nm, indent);
+ BIO_free(btmp);
+ return ret;
+ }
+ return do_name_ex(send_fp_chars, fp, nm, indent, flags);
+}
+#endif
+
+int ASN1_STRING_print_ex(BIO *out, ASN1_STRING *str, unsigned long flags)
+{
+ return do_print_ex(send_bio_chars, out, flags, str);
+}
+
+#ifndef OPENSSL_NO_FP_API
+int ASN1_STRING_print_ex_fp(FILE *fp, ASN1_STRING *str, unsigned long flags)
+{
+ return do_print_ex(send_fp_chars, fp, flags, str);
+}
+#endif
+
+/*
+ * Utility function: convert any string type to UTF8, returns number of bytes
+ * in output string or a negative error code
+ */
+
+int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in)
+{
+ ASN1_STRING stmp, *str = &stmp;
+ int mbflag, type, ret;
+ if (!in)
+ return -1;
+ type = in->type;
+ if ((type < 0) || (type > 30))
+ return -1;
+ mbflag = tag2nbyte[type];
+ if (mbflag == -1)
+ return -1;
+ mbflag |= MBSTRING_FLAG;
+ stmp.data = NULL;
+ stmp.length = 0;
+ stmp.flags = 0;
+ ret =
+ ASN1_mbstring_copy(&str, in->data, in->length, mbflag,
+ B_ASN1_UTF8STRING);
+ if (ret < 0)
+ return ret;
+ *out = stmp.data;
+ return stmp.length;
+}
git://repos.xcallymotion.com / motion2.git / blobdiff