Merge branch 'jk/maint-diffstat-overflow' into maint

diff --git a/utf8.c b/utf8.c
index 9f64f59d664c81c9cce41bc51ef26aa913d96fb6..84cfc72e6db144880febad0a4ffa64800919fb6d 100644 (file)
--- a/utf8.c
+++ b/utf8.c
@@ -163,7 +163,7 @@ static int git_wcwidth(ucs_char_t ch)
  * If the string was not a valid UTF-8, *start pointer is set to NULL
  * and the return value is undefined.
  */
-ucs_char_t pick_one_utf8_char(const char **start, size_t *remainder_p)
+static ucs_char_t pick_one_utf8_char(const char **start, size_t *remainder_p)
 {
        unsigned char *s = (unsigned char *)*start;
        ucs_char_t ch;
@@ -324,16 +324,21 @@ static size_t display_mode_esc_sequence_len(const char *s)
  * consumed (and no extra indent is necessary for the first line).
  */
 int strbuf_add_wrapped_text(struct strbuf *buf,
-               const char *text, int indent, int indent2, int width)
+               const char *text, int indent1, int indent2, int width)
 {
-       int w = indent, assume_utf8 = is_utf8(text);
-       const char *bol = text, *space = NULL;
+       int indent, w, assume_utf8 = 1;
+       const char *bol, *space, *start = text;
+       size_t orig_len = buf->len;
 
        if (width <= 0) {
-               strbuf_add_indented_text(buf, text, indent, indent2);
+               strbuf_add_indented_text(buf, text, indent1, indent2);
                return 1;
        }
 
+retry:
+       bol = text;
+       w = indent = indent1;
+       space = NULL;
        if (indent < 0) {
                w = -indent;
                space = text;
@@ -385,9 +390,15 @@ int strbuf_add_wrapped_text(struct strbuf *buf,
                        }
                        continue;
                }
-               if (assume_utf8)
+               if (assume_utf8) {
                        w += utf8_width(&text, NULL);
-               else {
+                       if (!text) {
+                               assume_utf8 = 0;
+                               text = start;
+                               strbuf_setlen(buf, orig_len);
+                               goto retry;
+                       }
+               } else {
                        w++;
                        text++;
                }