--- /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/asn1.h>
+
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "asn1_locl.h"
+
+static int traverse_string(const unsigned char *p, int len, int inform,
+ int (*rfunc) (uint32_t value, void *in),
+ void *arg);
+static int in_utf8(uint32_t value, void *arg);
+static int out_utf8(uint32_t value, void *arg);
+static int type_str(uint32_t value, void *arg);
+static int cpy_asc(uint32_t value, void *arg);
+static int cpy_bmp(uint32_t value, void *arg);
+static int cpy_univ(uint32_t value, void *arg);
+static int cpy_utf8(uint32_t value, void *arg);
+static int is_printable(uint32_t value);
+
+/*
+ * These functions take a string in UTF8, ASCII or multibyte form and a mask
+ * of permissible ASN1 string types. It then works out the minimal type
+ * (using the order Printable < IA5 < T61 < BMP < Universal < UTF8) and
+ * creates a string of the correct type with the supplied data. Yes this is
+ * horrible: it has to be :-( The 'ncopy' form checks minimum and maximum
+ * size limits too.
+ */
+
+int ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len,
+ int inform, unsigned long mask)
+{
+ return ASN1_mbstring_ncopy(out, in, len, inform, mask, 0, 0);
+}
+
+int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len,
+ int inform, unsigned long mask,
+ long minsize, long maxsize)
+{
+ int str_type;
+ int ret;
+ char free_out;
+ int outform, outlen = 0;
+ ASN1_STRING *dest;
+ unsigned char *p;
+ int nchar;
+ char strbuf[32];
+ int (*cpyfunc) (uint32_t, void *) = NULL;
+ if (len == -1)
+ len = strlen((const char *)in);
+ if (!mask)
+ mask = DIRSTRING_TYPE;
+
+ /* First do a string check and work out the number of characters */
+ switch (inform) {
+
+ case MBSTRING_BMP:
+ if (len & 1) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_BMPSTRING_LENGTH);
+ return -1;
+ }
+ nchar = len >> 1;
+ break;
+
+ case MBSTRING_UNIV:
+ if (len & 3) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_UNIVERSALSTRING_LENGTH);
+ return -1;
+ }
+ nchar = len >> 2;
+ break;
+
+ case MBSTRING_UTF8:
+ nchar = 0;
+ /* This counts the characters and does utf8 syntax checking */
+ ret = traverse_string(in, len, MBSTRING_UTF8, in_utf8, &nchar);
+ if (ret < 0) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_UTF8STRING);
+ return -1;
+ }
+ break;
+
+ case MBSTRING_ASC:
+ nchar = len;
+ break;
+
+ default:
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_FORMAT);
+ return -1;
+ }
+
+ if ((minsize > 0) && (nchar < minsize)) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_SHORT);
+ BIO_snprintf(strbuf, sizeof strbuf, "%ld", minsize);
+ ERR_add_error_data(2, "minsize=", strbuf);
+ return -1;
+ }
+
+ if ((maxsize > 0) && (nchar > maxsize)) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_LONG);
+ BIO_snprintf(strbuf, sizeof strbuf, "%ld", maxsize);
+ ERR_add_error_data(2, "maxsize=", strbuf);
+ return -1;
+ }
+
+ /* Now work out minimal type (if any) */
+ if (traverse_string(in, len, inform, type_str, &mask) < 0) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_CHARACTERS);
+ return -1;
+ }
+
+ /* Now work out output format and string type */
+ outform = MBSTRING_ASC;
+ if (mask & B_ASN1_PRINTABLESTRING)
+ str_type = V_ASN1_PRINTABLESTRING;
+ else if (mask & B_ASN1_IA5STRING)
+ str_type = V_ASN1_IA5STRING;
+ else if (mask & B_ASN1_T61STRING)
+ str_type = V_ASN1_T61STRING;
+ else if (mask & B_ASN1_BMPSTRING) {
+ str_type = V_ASN1_BMPSTRING;
+ outform = MBSTRING_BMP;
+ } else if (mask & B_ASN1_UNIVERSALSTRING) {
+ str_type = V_ASN1_UNIVERSALSTRING;
+ outform = MBSTRING_UNIV;
+ } else {
+ str_type = V_ASN1_UTF8STRING;
+ outform = MBSTRING_UTF8;
+ }
+ if (!out)
+ return str_type;
+ if (*out) {
+ free_out = 0;
+ dest = *out;
+ if (dest->data) {
+ dest->length = 0;
+ OPENSSL_free(dest->data);
+ dest->data = NULL;
+ }
+ dest->type = str_type;
+ } else {
+ free_out = 1;
+ dest = ASN1_STRING_type_new(str_type);
+ if (!dest) {
+ OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ *out = dest;
+ }
+ /* If both the same type just copy across */
+ if (inform == outform) {
+ if (!ASN1_STRING_set(dest, in, len)) {
+ OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ return str_type;
+ }
+
+ /* Work out how much space the destination will need */
+ switch (outform) {
+ case MBSTRING_ASC:
+ outlen = nchar;
+ cpyfunc = cpy_asc;
+ break;
+
+ case MBSTRING_BMP:
+ outlen = nchar << 1;
+ cpyfunc = cpy_bmp;
+ break;
+
+ case MBSTRING_UNIV:
+ outlen = nchar << 2;
+ cpyfunc = cpy_univ;
+ break;
+
+ case MBSTRING_UTF8:
+ outlen = 0;
+ traverse_string(in, len, inform, out_utf8, &outlen);
+ cpyfunc = cpy_utf8;
+ break;
+ }
+ if (!(p = OPENSSL_malloc(outlen + 1))) {
+ if (free_out)
+ ASN1_STRING_free(dest);
+ OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ dest->length = outlen;
+ dest->data = p;
+ p[outlen] = 0;
+ traverse_string(in, len, inform, cpyfunc, &p);
+ return str_type;
+}
+
+/*
+ * This function traverses a string and passes the value of each character to
+ * an optional function along with a void * argument.
+ */
+
+static int traverse_string(const unsigned char *p, int len, int inform,
+ int (*rfunc) (uint32_t value, void *in),
+ void *arg)
+{
+ uint32_t value;
+ int ret;
+ while (len) {
+ if (inform == MBSTRING_ASC) {
+ value = *p++;
+ len--;
+ } else if (inform == MBSTRING_BMP) {
+ value = *p++ << 8;
+ value |= *p++;
+ len -= 2;
+ } else if (inform == MBSTRING_UNIV) {
+ value = ((uint32_t)*p++) << 24;
+ value |= ((uint32_t)*p++) << 16;
+ value |= *p++ << 8;
+ value |= *p++;
+ len -= 4;
+ } else {
+ ret = UTF8_getc(p, len, &value);
+ if (ret < 0)
+ return -1;
+ len -= ret;
+ p += ret;
+ }
+ if (rfunc) {
+ ret = rfunc(value, arg);
+ if (ret <= 0)
+ return ret;
+ }
+ }
+ return 1;
+}
+
+/* Various utility functions for traverse_string */
+
+/* Just count number of characters */
+
+static int in_utf8(uint32_t value, void *arg)
+{
+ int *nchar;
+ nchar = arg;
+ (*nchar)++;
+ return 1;
+}
+
+/* Determine size of output as a UTF8 String */
+
+static int out_utf8(uint32_t value, void *arg)
+{
+ int *outlen;
+ outlen = arg;
+ *outlen += UTF8_putc(NULL, -1, value);
+ return 1;
+}
+
+/*
+ * Determine the "type" of a string: check each character against a supplied
+ * "mask".
+ */
+
+static int type_str(uint32_t value, void *arg)
+{
+ unsigned long types;
+ types = *((unsigned long *)arg);
+ if ((types & B_ASN1_PRINTABLESTRING) && !is_printable(value))
+ types &= ~B_ASN1_PRINTABLESTRING;
+ if ((types & B_ASN1_IA5STRING) && (value > 127))
+ types &= ~B_ASN1_IA5STRING;
+ if ((types & B_ASN1_T61STRING) && (value > 0xff))
+ types &= ~B_ASN1_T61STRING;
+ if ((types & B_ASN1_BMPSTRING) && (value > 0xffff))
+ types &= ~B_ASN1_BMPSTRING;
+ if (!types)
+ return -1;
+ *((unsigned long *)arg) = types;
+ return 1;
+}
+
+/* Copy one byte per character ASCII like strings */
+
+static int cpy_asc(uint32_t value, void *arg)
+{
+ unsigned char **p, *q;
+ p = arg;
+ q = *p;
+ *q = (unsigned char)value;
+ (*p)++;
+ return 1;
+}
+
+/* Copy two byte per character BMPStrings */
+
+static int cpy_bmp(uint32_t value, void *arg)
+{
+ unsigned char **p, *q;
+ p = arg;
+ q = *p;
+ *q++ = (unsigned char)((value >> 8) & 0xff);
+ *q = (unsigned char)(value & 0xff);
+ *p += 2;
+ return 1;
+}
+
+/* Copy four byte per character UniversalStrings */
+
+static int cpy_univ(uint32_t value, void *arg)
+{
+ unsigned char **p, *q;
+ p = arg;
+ q = *p;
+ *q++ = (unsigned char)((value >> 24) & 0xff);
+ *q++ = (unsigned char)((value >> 16) & 0xff);
+ *q++ = (unsigned char)((value >> 8) & 0xff);
+ *q = (unsigned char)(value & 0xff);
+ *p += 4;
+ return 1;
+}
+
+/* Copy to a UTF8String */
+
+static int cpy_utf8(uint32_t value, void *arg)
+{
+ unsigned char **p;
+ int ret;
+ p = arg;
+ /* We already know there is enough room so pass 0xff as the length */
+ ret = UTF8_putc(*p, 0xff, value);
+ *p += ret;
+ return 1;
+}
+
+/* Return 1 if the character is permitted in a PrintableString */
+static int is_printable(uint32_t value)
+{
+ int ch;
+ if (value > 0x7f)
+ return 0;
+ ch = (int)value;
+ /*
+ * Note: we can't use 'isalnum' because certain accented characters may
+ * count as alphanumeric in some environments.
+ */
+ if ((ch >= 'a') && (ch <= 'z'))
+ return 1;
+ if ((ch >= 'A') && (ch <= 'Z'))
+ return 1;
+ if ((ch >= '0') && (ch <= '9'))
+ return 1;
+ if ((ch == ' ') || strchr("'()+,-./:=?", ch))
+ return 1;
+ return 0;
+}
git://repos.xcallymotion.com / motion2.git / blobdiff