X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/810d16ad4b7f172163ed4bb8adc45a3d7183659a..1fb7660fc893265f0e37ceb965396d9e005a0b74:/src/src/utf8.c

diff --git a/src/src/utf8.c b/src/src/utf8.c
index 6bc0c2ed5..a0ec00391 100644
--- a/src/src/utf8.c
+++ b/src/src/utf8.c
@@ -24,6 +24,7 @@ return FALSE;
 
 /**************************************************/
 /* Domain conversions */
+/* the *err string pointer should be null before the call */
 
 uschar *
 string_domain_utf8_to_alabel(const uschar * utf8, uschar ** err)
@@ -68,20 +69,27 @@ return s;
 
 /**************************************************/
 /* localpart conversions */
+/* the *err string pointer should be null before the call */
 
 
 uschar *
 string_localpart_utf8_to_alabel(const uschar * utf8, uschar ** err)
 {
 size_t ucs4_len;
-punycode_uint * p = (punycode_uint *) stringprep_utf8_to_ucs4(CCS utf8, -1, &ucs4_len);
-size_t p_len = ucs4_len*4;	/* this multiplier is pure guesswork */
-uschar * res = store_get(p_len+5);
+punycode_uint * p;
+size_t p_len;
+uschar * res;
 int rc;
 
+if (!string_is_utf8(utf8)) return string_copy(utf8);
+
+p = (punycode_uint *) stringprep_utf8_to_ucs4(CCS utf8, -1, &ucs4_len);
+p_len = ucs4_len*4;	/* this multiplier is pure guesswork */
+res = store_get(p_len+5);
+
 res[0] = 'x'; res[1] = 'n'; res[2] = res[3] = '-';
 
-if ((rc = punycode_encode(ucs4_len, p, NULL, &p_len, res+4)) != PUNYCODE_SUCCESS)
+if ((rc = punycode_encode(ucs4_len, p, NULL, &p_len, CS res+4)) != PUNYCODE_SUCCESS)
   {
   DEBUG(D_expand) debug_printf("l_u2a: bad '%s'\n", punycode_strerror(rc));
   free(p);
@@ -98,7 +106,7 @@ return res;
 uschar *
 string_localpart_alabel_to_utf8(const uschar * alabel, uschar ** err)
 {
-size_t p_len = strlen(alabel);
+size_t p_len = Ustrlen(alabel);
 punycode_uint * p;
 uschar * s;
 uschar * res;
@@ -126,6 +134,41 @@ return res;
 }
 
 
+/**************************************************/
+/* whole address conversion */
+/* the *err string pointer should be null before the call */
+
+uschar *
+string_address_utf8_to_alabel(const uschar * utf8, uschar ** err)
+{
+const uschar * s;
+uschar * l;
+uschar * d;
+
+if (!*utf8) return string_copy(utf8);
+
+DEBUG(D_expand) debug_printf("addr from utf8 <%s>", utf8);
+
+for (s = utf8; *s; s++)
+  if (*s == '@')
+    {
+    l = string_copyn(utf8, s - utf8);
+    if (  (l = string_localpart_utf8_to_alabel(l, err), err && *err)
+       || (d = string_domain_utf8_to_alabel(++s, err),  err && *err)
+       )
+      return NULL;
+    l = string_sprintf("%s@%s", l, d);
+    DEBUG(D_expand) debug_printf(" -> <%s>\n", l);
+    return l;
+    }
+
+l =  string_localpart_utf8_to_alabel(utf8, err);
+DEBUG(D_expand) debug_printf(" -> <%s>\n", l);
+return l;
+}
+
+
+
 /*************************************************
 *         Report the library versions.           *
 *************************************************/