1 files changed, 17 insertions, 9 deletions

diff --git a/ui-tree.c b/ui-tree.c
index a37a4e5..553dbaa 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -25,11 +25,14 @@ static void print_text_buffer(char *buf, unsigned long size)
         html("<tr><td class='linenumbers'><pre>");
         idx = 0;
         lineno = 0;
-        htmlf(numberfmt, ++lineno);
-        while(idx < size - 1) { // skip absolute last newline
-                if (buf[idx] == '\n')
-                        htmlf(numberfmt, ++lineno);
-                idx++;
+
+        if (size) {
+                htmlf(numberfmt, ++lineno);
+                while(idx < size - 1) { // skip absolute last newline
+                        if (buf[idx] == '\n')
+                                htmlf(numberfmt, ++lineno);
+                        idx++;
+                }
         }
         html("</pre></td>\n");
         html("<td class='lines'><pre><code>");
@@ -37,21 +40,26 @@ static void print_text_buffer(char *buf, unsigned long size)
         html("</code></pre></td></tr></table>\n");
 }
 
+#define ROWLEN 32
+
 static void print_binary_buffer(char *buf, unsigned long size)
 {
         unsigned long ofs, idx;
+        static char ascii[ROWLEN + 1];
 
         html("<table summary='blob content' class='bin-blob'>\n");
         html("<tr><th>ofs</th><th>hex dump</th><th>ascii</th></tr>");
-        for (ofs = 0; ofs < size; ofs += 32, buf += 32) {
+        for (ofs = 0; ofs < size; ofs += ROWLEN, buf += ROWLEN) {
                 htmlf("<tr><td class='right'>%04x</td><td class='hex'>", ofs);
-                for (idx = 0; idx < 32 && ofs + idx < size; idx++)
+                for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
                         htmlf("%*s%02x",
                               idx == 16 ? 4 : 1, "",
                               buf[idx] & 0xff);
                 html(" </td><td class='hex'>");
-                for (idx = 0; idx < 32 && ofs + idx < size; idx++)
-                        htmlf("%c", isgraph(buf[idx]) ? buf[idx] : '.');
+                for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
+                        ascii[idx] = isgraph(buf[idx]) ? buf[idx] : '.';
+                ascii[idx] = '\0';
+                html_txt(ascii);
                 html("</td></tr>\n");
         }
         html("</table>\n");