1 files changed, 20 insertions, 9 deletions

diff --git a/lib/libcrypto/bio/b_print.c b/lib/libcrypto/bio/b_print.c
index 80c9cb69db2..a9e552f2452 100644
--- a/lib/libcrypto/bio/b_print.c
+++ b/lib/libcrypto/bio/b_print.c
@@ -378,7 +378,7 @@ _dopr(
             case 'p':
                 value = (long)va_arg(args, void *);
                 fmtint(sbuffer, buffer, &currlen, maxlen,
-                    value, 16, min, max, flags);
+                    value, 16, min, max, flags|DP_F_NUM);
                 break;
             case 'n': /* XXX */
                 if (cflags == DP_C_SHORT) {
@@ -482,8 +482,9 @@ fmtint(
     int flags)
 {
     int signvalue = 0;
+    char *prefix = "";
     unsigned LLONG uvalue;
-    char convert[20];
+    char convert[DECIMAL_SIZE(value)+3];
     int place = 0;
     int spadlen = 0;
     int zpadlen = 0;
@@ -501,6 +502,10 @@ fmtint(
         else if (flags & DP_F_SPACE)
             signvalue = ' ';
     }
+    if (flags & DP_F_NUM) {
+	if (base == 8) prefix = "0";
+	if (base == 16) prefix = "0x";
+    }
     if (flags & DP_F_UP)
         caps = 1;
     do {
@@ -508,13 +513,13 @@ fmtint(
             (caps ? "0123456789ABCDEF" : "0123456789abcdef")
             [uvalue % (unsigned) base];
         uvalue = (uvalue / (unsigned) base);
-    } while (uvalue && (place < 20));
-    if (place == 20)
+    } while (uvalue && (place < sizeof convert));
+    if (place == sizeof convert)
         place--;
     convert[place] = 0;
 
     zpadlen = max - place;
-    spadlen = min - OSSL_MAX(max, place) - (signvalue ? 1 : 0);
+    spadlen = min - OSSL_MAX(max, place) - (signvalue ? 1 : 0) - strlen(prefix);
     if (zpadlen < 0)
         zpadlen = 0;
     if (spadlen < 0)
@@ -536,6 +541,12 @@ fmtint(
     if (signvalue)
         doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue);
 
+    /* prefix */
+    while (*prefix) {
+	doapr_outch(sbuffer, buffer, currlen, maxlen, *prefix);
+	prefix++;
+    }
+
     /* zeros */
     if (zpadlen > 0) {
         while (zpadlen > 0) {
@@ -641,8 +652,8 @@ fmtfp(
             (caps ? "0123456789ABCDEF"
               : "0123456789abcdef")[intpart % 10];
         intpart = (intpart / 10);
-    } while (intpart && (iplace < 20));
-    if (iplace == 20)
+    } while (intpart && (iplace < sizeof iplace));
+    if (iplace == sizeof iplace)
         iplace--;
     iconvert[iplace] = 0;
 
@@ -653,7 +664,7 @@ fmtfp(
               : "0123456789abcdef")[fracpart % 10];
         fracpart = (fracpart / 10);
     } while (fplace < max);
-    if (fplace == 20)
+    if (fplace == sizeof fplace)
         fplace--;
     fconvert[fplace] = 0;
 
@@ -692,7 +703,7 @@ fmtfp(
      * Decimal point. This should probably use locale to find the correct
      * char to print out.
      */
-    if (max > 0) {
+    if (max > 0 || (flags & DP_F_NUM)) {
         doapr_outch(sbuffer, buffer, currlen, maxlen, '.');
 
         while (fplace > 0)