- if ((t = Ustrchr(s, '\\')) && t[1] == 'n')
- ltail = 2;
- else if ((t = Ustrchr(s, '\n')))
- ltail = 1;
- else
- {
- t = s + sleft;
- ltail = 0;
- }
-
- /* If that is too long, search backward for a space */
-
- if ((llen + t - s) > 78)
- {
- const uschar * u;
- for (u = s + 78 - llen; u > s + 10; --u) if (*u == ' ') break;
- if (u > s + 10)
- { /* found a space to linebreak at */
- llen = u - s;
- remain -= fprintf(fp, "%.*s", (int)llen, s);
- s += ++llen; /* skip the space also */
- }
- else if (llen < 78)
- { /* just linebreak at 78 */
- llen = 78 - llen;
- remain -= fprintf(fp, "%.*s", llen, s);
- s += llen;
- }
- else /* header rather long */
- llen = 0;
- }
- else
- {
- llen = t - s;
- remain -= fprintf(fp, "%.*s", llen, s);
- s = t + ltail;
- }
+g = string_cat(g, s);
+gstring_release_unused(g);
+fprintf(fp, "%s\n", wrap_header(string_from_gstring(g), 79, 1023, US" ", 1));
+}