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-rw-r--r--crypto/asn1/a_utf8.c294
1 files changed, 160 insertions, 134 deletions
diff --git a/crypto/asn1/a_utf8.c b/crypto/asn1/a_utf8.c
index 508e11e527c8..23dc2e828ab6 100644
--- a/crypto/asn1/a_utf8.c
+++ b/crypto/asn1/a_utf8.c
@@ -5,21 +5,21 @@
* 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:
@@ -34,10 +34,10 @@
* 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
+ * 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
@@ -49,7 +49,7 @@
* 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
@@ -60,10 +60,10 @@
#include "cryptlib.h"
#include <openssl/asn1.h>
-
/* UTF8 utilities */
-/* This parses a UTF8 string one character at a time. It is passed a pointer
+/*-
+ * This parses a UTF8 string one character at a time. It is passed a pointer
* to the string and the length of the string. It sets 'value' to the value of
* the current character. It returns the number of characters read or a
* negative error code:
@@ -75,137 +75,163 @@
int UTF8_getc(const unsigned char *str, int len, unsigned long *val)
{
- const unsigned char *p;
- unsigned long value;
- int ret;
- if(len <= 0) return 0;
- p = str;
+ const unsigned char *p;
+ unsigned long value;
+ int ret;
+ if (len <= 0)
+ return 0;
+ p = str;
- /* Check syntax and work out the encoded value (if correct) */
- if((*p & 0x80) == 0) {
- value = *p++ & 0x7f;
- ret = 1;
- } else if((*p & 0xe0) == 0xc0) {
- if(len < 2) return -1;
- if((p[1] & 0xc0) != 0x80) return -3;
- value = (*p++ & 0x1f) << 6;
- value |= *p++ & 0x3f;
- if(value < 0x80) return -4;
- ret = 2;
- } else if((*p & 0xf0) == 0xe0) {
- if(len < 3) return -1;
- if( ((p[1] & 0xc0) != 0x80)
- || ((p[2] & 0xc0) != 0x80) ) return -3;
- value = (*p++ & 0xf) << 12;
- value |= (*p++ & 0x3f) << 6;
- value |= *p++ & 0x3f;
- if(value < 0x800) return -4;
- ret = 3;
- } else if((*p & 0xf8) == 0xf0) {
- if(len < 4) return -1;
- if( ((p[1] & 0xc0) != 0x80)
- || ((p[2] & 0xc0) != 0x80)
- || ((p[3] & 0xc0) != 0x80) ) return -3;
- value = ((unsigned long)(*p++ & 0x7)) << 18;
- value |= (*p++ & 0x3f) << 12;
- value |= (*p++ & 0x3f) << 6;
- value |= *p++ & 0x3f;
- if(value < 0x10000) return -4;
- ret = 4;
- } else if((*p & 0xfc) == 0xf8) {
- if(len < 5) return -1;
- if( ((p[1] & 0xc0) != 0x80)
- || ((p[2] & 0xc0) != 0x80)
- || ((p[3] & 0xc0) != 0x80)
- || ((p[4] & 0xc0) != 0x80) ) return -3;
- value = ((unsigned long)(*p++ & 0x3)) << 24;
- value |= ((unsigned long)(*p++ & 0x3f)) << 18;
- value |= ((unsigned long)(*p++ & 0x3f)) << 12;
- value |= (*p++ & 0x3f) << 6;
- value |= *p++ & 0x3f;
- if(value < 0x200000) return -4;
- ret = 5;
- } else if((*p & 0xfe) == 0xfc) {
- if(len < 6) return -1;
- if( ((p[1] & 0xc0) != 0x80)
- || ((p[2] & 0xc0) != 0x80)
- || ((p[3] & 0xc0) != 0x80)
- || ((p[4] & 0xc0) != 0x80)
- || ((p[5] & 0xc0) != 0x80) ) return -3;
- value = ((unsigned long)(*p++ & 0x1)) << 30;
- value |= ((unsigned long)(*p++ & 0x3f)) << 24;
- value |= ((unsigned long)(*p++ & 0x3f)) << 18;
- value |= ((unsigned long)(*p++ & 0x3f)) << 12;
- value |= (*p++ & 0x3f) << 6;
- value |= *p++ & 0x3f;
- if(value < 0x4000000) return -4;
- ret = 6;
- } else return -2;
- *val = value;
- return ret;
+ /* Check syntax and work out the encoded value (if correct) */
+ if ((*p & 0x80) == 0) {
+ value = *p++ & 0x7f;
+ ret = 1;
+ } else if ((*p & 0xe0) == 0xc0) {
+ if (len < 2)
+ return -1;
+ if ((p[1] & 0xc0) != 0x80)
+ return -3;
+ value = (*p++ & 0x1f) << 6;
+ value |= *p++ & 0x3f;
+ if (value < 0x80)
+ return -4;
+ ret = 2;
+ } else if ((*p & 0xf0) == 0xe0) {
+ if (len < 3)
+ return -1;
+ if (((p[1] & 0xc0) != 0x80)
+ || ((p[2] & 0xc0) != 0x80))
+ return -3;
+ value = (*p++ & 0xf) << 12;
+ value |= (*p++ & 0x3f) << 6;
+ value |= *p++ & 0x3f;
+ if (value < 0x800)
+ return -4;
+ ret = 3;
+ } else if ((*p & 0xf8) == 0xf0) {
+ if (len < 4)
+ return -1;
+ if (((p[1] & 0xc0) != 0x80)
+ || ((p[2] & 0xc0) != 0x80)
+ || ((p[3] & 0xc0) != 0x80))
+ return -3;
+ value = ((unsigned long)(*p++ & 0x7)) << 18;
+ value |= (*p++ & 0x3f) << 12;
+ value |= (*p++ & 0x3f) << 6;
+ value |= *p++ & 0x3f;
+ if (value < 0x10000)
+ return -4;
+ ret = 4;
+ } else if ((*p & 0xfc) == 0xf8) {
+ if (len < 5)
+ return -1;
+ if (((p[1] & 0xc0) != 0x80)
+ || ((p[2] & 0xc0) != 0x80)
+ || ((p[3] & 0xc0) != 0x80)
+ || ((p[4] & 0xc0) != 0x80))
+ return -3;
+ value = ((unsigned long)(*p++ & 0x3)) << 24;
+ value |= ((unsigned long)(*p++ & 0x3f)) << 18;
+ value |= ((unsigned long)(*p++ & 0x3f)) << 12;
+ value |= (*p++ & 0x3f) << 6;
+ value |= *p++ & 0x3f;
+ if (value < 0x200000)
+ return -4;
+ ret = 5;
+ } else if ((*p & 0xfe) == 0xfc) {
+ if (len < 6)
+ return -1;
+ if (((p[1] & 0xc0) != 0x80)
+ || ((p[2] & 0xc0) != 0x80)
+ || ((p[3] & 0xc0) != 0x80)
+ || ((p[4] & 0xc0) != 0x80)
+ || ((p[5] & 0xc0) != 0x80))
+ return -3;
+ value = ((unsigned long)(*p++ & 0x1)) << 30;
+ value |= ((unsigned long)(*p++ & 0x3f)) << 24;
+ value |= ((unsigned long)(*p++ & 0x3f)) << 18;
+ value |= ((unsigned long)(*p++ & 0x3f)) << 12;
+ value |= (*p++ & 0x3f) << 6;
+ value |= *p++ & 0x3f;
+ if (value < 0x4000000)
+ return -4;
+ ret = 6;
+ } else
+ return -2;
+ *val = value;
+ return ret;
}
-/* This takes a character 'value' and writes the UTF8 encoded value in
- * 'str' where 'str' is a buffer containing 'len' characters. Returns
- * the number of characters written or -1 if 'len' is too small. 'str' can
- * be set to NULL in which case it just returns the number of characters.
- * It will need at most 6 characters.
+/*
+ * This takes a character 'value' and writes the UTF8 encoded value in 'str'
+ * where 'str' is a buffer containing 'len' characters. Returns the number of
+ * characters written or -1 if 'len' is too small. 'str' can be set to NULL
+ * in which case it just returns the number of characters. It will need at
+ * most 6 characters.
*/
int UTF8_putc(unsigned char *str, int len, unsigned long value)
{
- if(!str) len = 6; /* Maximum we will need */
- else if(len <= 0) return -1;
- if(value < 0x80) {
- if(str) *str = (unsigned char)value;
- return 1;
- }
- if(value < 0x800) {
- if(len < 2) return -1;
- if(str) {
- *str++ = (unsigned char)(((value >> 6) & 0x1f) | 0xc0);
- *str = (unsigned char)((value & 0x3f) | 0x80);
- }
- return 2;
- }
- if(value < 0x10000) {
- if(len < 3) return -1;
- if(str) {
- *str++ = (unsigned char)(((value >> 12) & 0xf) | 0xe0);
- *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
- *str = (unsigned char)((value & 0x3f) | 0x80);
- }
- return 3;
- }
- if(value < 0x200000) {
- if(len < 4) return -1;
- if(str) {
- *str++ = (unsigned char)(((value >> 18) & 0x7) | 0xf0);
- *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
- *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
- *str = (unsigned char)((value & 0x3f) | 0x80);
- }
- return 4;
- }
- if(value < 0x4000000) {
- if(len < 5) return -1;
- if(str) {
- *str++ = (unsigned char)(((value >> 24) & 0x3) | 0xf8);
- *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
- *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
- *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
- *str = (unsigned char)((value & 0x3f) | 0x80);
- }
- return 5;
- }
- if(len < 6) return -1;
- if(str) {
- *str++ = (unsigned char)(((value >> 30) & 0x1) | 0xfc);
- *str++ = (unsigned char)(((value >> 24) & 0x3f) | 0x80);
- *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
- *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
- *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
- *str = (unsigned char)((value & 0x3f) | 0x80);
- }
- return 6;
+ if (!str)
+ len = 6; /* Maximum we will need */
+ else if (len <= 0)
+ return -1;
+ if (value < 0x80) {
+ if (str)
+ *str = (unsigned char)value;
+ return 1;
+ }
+ if (value < 0x800) {
+ if (len < 2)
+ return -1;
+ if (str) {
+ *str++ = (unsigned char)(((value >> 6) & 0x1f) | 0xc0);
+ *str = (unsigned char)((value & 0x3f) | 0x80);
+ }
+ return 2;
+ }
+ if (value < 0x10000) {
+ if (len < 3)
+ return -1;
+ if (str) {
+ *str++ = (unsigned char)(((value >> 12) & 0xf) | 0xe0);
+ *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+ *str = (unsigned char)((value & 0x3f) | 0x80);
+ }
+ return 3;
+ }
+ if (value < 0x200000) {
+ if (len < 4)
+ return -1;
+ if (str) {
+ *str++ = (unsigned char)(((value >> 18) & 0x7) | 0xf0);
+ *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+ *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+ *str = (unsigned char)((value & 0x3f) | 0x80);
+ }
+ return 4;
+ }
+ if (value < 0x4000000) {
+ if (len < 5)
+ return -1;
+ if (str) {
+ *str++ = (unsigned char)(((value >> 24) & 0x3) | 0xf8);
+ *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
+ *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+ *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+ *str = (unsigned char)((value & 0x3f) | 0x80);
+ }
+ return 5;
+ }
+ if (len < 6)
+ return -1;
+ if (str) {
+ *str++ = (unsigned char)(((value >> 30) & 0x1) | 0xfc);
+ *str++ = (unsigned char)(((value >> 24) & 0x3f) | 0x80);
+ *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
+ *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+ *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+ *str = (unsigned char)((value & 0x3f) | 0x80);
+ }
+ return 6;
}