Fix indefinite length encoding so EOC correctly updates

[openssl.git] / crypto / asn1 / a_strex.c

diff --git a/crypto/asn1/a_strex.c b/crypto/asn1/a_strex.c
index 128aa7e772c0091eebd35d296d13e3a84cfe0693..1def6c6549431b3631a6e240a4d3872ca7a1e150 100644 (file)
--- a/crypto/asn1/a_strex.c
+++ b/crypto/asn1/a_strex.c
@@ -63,6 +63,7 @@
 #include <openssl/asn1.h>
 
 #include "charmap.h"
+#include "cryptlib.h"
 
 /* ASN1_STRING_print_ex() and X509_NAME_print_ex().
  * Enhanced string and name printing routines handling
@@ -77,8 +78,8 @@
 /* Three IO functions for sending data to memory, a BIO and
  * and a FILE pointer.
  */
-
-int send_mem_chars(void *arg, const void *buf, int len)
+#if 0                          /* never used */
+static int send_mem_chars(void *arg, const void *buf, int len)
 {
        unsigned char **out = arg;
        if(!out) return 1;
@@ -86,15 +87,16 @@ int send_mem_chars(void *arg, const void *buf, int len)
        *out += len;
        return 1;
 }
+#endif
 
-int send_bio_chars(void *arg, const void *buf, int len)
+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;
 }
 
-int send_fp_chars(void *arg, const void *buf, int len)
+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;
@@ -113,14 +115,17 @@ typedef int char_io(void *arg, const void *buf, int len);
 static int do_esc_char(unsigned long c, unsigned char flags, char *do_quotes, char_io *io_ch, void *arg)
 {
        unsigned char chflgs, chtmp;
-       char tmphex[11];
+       char tmphex[HEX_SIZE(long)+3];
+
+       if(c > 0xffffffffL)
+               return -1;
        if(c > 0xffff) {
-               BIO_snprintf(tmphex, 11, "\\W%08lX", c);
+               BIO_snprintf(tmphex, sizeof tmphex, "\\W%08lX", c);
                if(!io_ch(arg, tmphex, 10)) return -1;
                return 10;
        }
        if(c > 0xff) {
-               BIO_snprintf(tmphex, 11, "\\U%04lX", c);
+               BIO_snprintf(tmphex, sizeof tmphex, "\\U%04lX", c);
                if(!io_ch(arg, tmphex, 6)) return -1;
                return 6;
        }
@@ -194,7 +199,7 @@ static int do_buf(unsigned char *buf, int buflen,
                if(type & BUF_TYPE_CONVUTF8) {
                        unsigned char utfbuf[6];
                        int utflen;
-                       utflen = UTF8_putc(utfbuf, 6, c);
+                       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 
@@ -240,7 +245,7 @@ static int do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf, int buflen
  * #01234 format.
  */
 
-int do_dump(unsigned long lflags, char_io *io_ch, void *arg, ASN1_STRING *str)
+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
@@ -460,7 +465,7 @@ static int do_name_ex(char_io *io_ch, void *arg, X509_NAME *n,
                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, 80, fn, 1);
+                               OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1);
                                fld_len = 0; /* XXX: what should this be? */
                                objbuf = objtmp;
                        } else {
@@ -543,7 +548,7 @@ int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in)
 {
        ASN1_STRING stmp, *str = &stmp;
        int mbflag, type, ret;
-       if(!*out || !in) return -1;
+       if(!in) return -1;
        type = in->type;
        if((type < 0) || (type > 30)) return -1;
        mbflag = tag2nbyte[type];
@@ -552,6 +557,6 @@ int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in)
        stmp.data = NULL;
        ret = ASN1_mbstring_copy(&str, in->data, in->length, mbflag, B_ASN1_UTF8STRING);
        if(ret < 0) return ret;
-       if(out) *out = stmp.data;
+       *out = stmp.data;
        return stmp.length;
 }