+/*************************************************
+* Adjust a priority list *
+*************************************************/
+
+/* This function is called to adjust the lists of cipher algorithms, MAC
+algorithms, key-exchange methods, and protocols.
+
+Arguments:
+ plist the appropriate priority list
+ psize the length of the list
+ s the configuation string
+ index the index of recognized strings
+ isize the length of the index
+
+
+ which text for an error message
+
+Returns: FALSE if the table overflows, else TRUE
+*/
+
+static BOOL
+set_priority(int *plist, int psize, uschar *s, pri_item *index, int isize,
+ uschar *which)
+{
+int sep = 0;
+BOOL first = TRUE;
+uschar *t;
+
+while ((t = string_nextinlist(&s, &sep, big_buffer, big_buffer_size)) != NULL)
+ {
+ int i;
+ BOOL exclude = t[0] == '!';
+ if (first && !exclude) plist[0] = 0;
+ first = FALSE;
+ for (i = 0; i < isize; i++)
+ {
+ uschar *ss = strstric(t, index[i].name, FALSE);
+ if (ss != NULL)
+ {
+ uschar *endss = ss + Ustrlen(index[i].name);
+ if ((ss == t || !isalnum(ss[-1])) && !isalnum(*endss))
+ {
+ if (exclude)
+ remove_priority(plist, index[i].values);
+ else
+ {
+ if (!add_priority(plist, psize, index[i].values))
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC, "GnuTLS init failed: %s "
+ "priority table overflow", which);
+ return FALSE;
+ }
+ }
+ }
+ }
+ }
+ }
+
+DEBUG(D_tls)
+ {
+ int *ptr = plist;
+ debug_printf("adjusted %s priorities:", which);
+ while (*ptr != 0) debug_printf(" %d", *ptr++);
+ debug_printf("\n");
+ }
+
+return TRUE;
+}
+
+
+
+
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