Allow for linefold when generating more than one RFC 2047 encoded-word.

[exim.git] / src / src / expand.c

diff --git a/src/src/expand.c b/src/src/expand.c
index 8523ace2109abd1b4602bee1b02ec9b1e730c741..3b50363452da9e7307fb561d13fab0cf3f0c8e45 100644 (file)
--- a/src/src/expand.c
+++ b/src/src/expand.c
@@ -1,10 +1,10 @@
-/* $Cambridge: exim/src/src/expand.c,v 1.50 2005/12/12 12:05:08 ph10 Exp $ */
+/* $Cambridge: exim/src/src/expand.c,v 1.57 2006/03/08 11:13:07 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) University of Cambridge 1995 - 2006 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 
@@ -94,12 +94,14 @@ static uschar *op_table_underscore[] = {
   US"from_utf8",
   US"local_part",
   US"quote_local_part",
+  US"time_eval",
   US"time_interval"};
 
 enum {
   EOP_FROM_UTF8,
   EOP_LOCAL_PART,
   EOP_QUOTE_LOCAL_PART,
+  EOP_TIME_EVAL,
   EOP_TIME_INTERVAL };
 
 static uschar *op_table_main[] = {
@@ -298,26 +300,6 @@ enum {
 /* This table must be kept in alphabetical order. */
 
 static var_entry var_table[] = {
-  { "acl_c0",              vtype_stringptr,   &acl_var[0] },
-  { "acl_c1",              vtype_stringptr,   &acl_var[1] },
-  { "acl_c2",              vtype_stringptr,   &acl_var[2] },
-  { "acl_c3",              vtype_stringptr,   &acl_var[3] },
-  { "acl_c4",              vtype_stringptr,   &acl_var[4] },
-  { "acl_c5",              vtype_stringptr,   &acl_var[5] },
-  { "acl_c6",              vtype_stringptr,   &acl_var[6] },
-  { "acl_c7",              vtype_stringptr,   &acl_var[7] },
-  { "acl_c8",              vtype_stringptr,   &acl_var[8] },
-  { "acl_c9",              vtype_stringptr,   &acl_var[9] },
-  { "acl_m0",              vtype_stringptr,   &acl_var[10] },
-  { "acl_m1",              vtype_stringptr,   &acl_var[11] },
-  { "acl_m2",              vtype_stringptr,   &acl_var[12] },
-  { "acl_m3",              vtype_stringptr,   &acl_var[13] },
-  { "acl_m4",              vtype_stringptr,   &acl_var[14] },
-  { "acl_m5",              vtype_stringptr,   &acl_var[15] },
-  { "acl_m6",              vtype_stringptr,   &acl_var[16] },
-  { "acl_m7",              vtype_stringptr,   &acl_var[17] },
-  { "acl_m8",              vtype_stringptr,   &acl_var[18] },
-  { "acl_m9",              vtype_stringptr,   &acl_var[19] },
   { "acl_verify_message",  vtype_stringptr,   &acl_verify_message },
   { "address_data",        vtype_stringptr,   &deliver_address_data },
   { "address_file",        vtype_stringptr,   &address_file },
@@ -1249,6 +1231,48 @@ find_variable(uschar *name, BOOL exists_only, BOOL skipping, int *newsize)
 int first = 0;
 int last = var_table_size;
 
+/* Handle ACL variables, which are not in the table because their number may
+vary depending on a build-time setting. If the variable's name is not of the
+form acl_mddd or acl_cddd, where the d's are digits, fall through to look for
+other names that start with acl_. */
+
+if (Ustrncmp(name, "acl_", 4) == 0)
+  {
+  uschar *endptr;
+  int offset = -1;
+  int max = 0;
+
+  if (name[4] == 'm')
+    {
+    offset = ACL_CVARS;
+    max = ACL_MVARS;
+    }
+  else if (name[4] == 'c')
+    {
+    offset = 0;
+    max = ACL_CVARS;
+    }
+
+  if (offset >= 0)
+    {
+    int n = Ustrtoul(name + 5, &endptr, 10);
+    if (*endptr == 0 && n < max)
+      return (acl_var[offset + n] == NULL)? US"" : acl_var[offset + n];
+    }
+  }
+
+/* Similarly for $auth<n> variables. */
+
+if (Ustrncmp(name, "auth", 4) == 0)
+  {
+  uschar *endptr;
+  int n = Ustrtoul(name + 4, &endptr, 10);
+  if (*endptr == 0 && n != 0 && n <= AUTH_VARS)
+    return (auth_vars[n-1] == NULL)? US"" : auth_vars[n-1];
+  }
+
+/* For all other variables, search the table */
+
 while (last > first)
   {
   uschar *s, *domain;
@@ -1260,7 +1284,7 @@ while (last > first)
   if (c < 0) { last = middle; continue; }
 
   /* Found an existing variable. If in skipping state, the value isn't needed,
-  and we want to avoid processing (such as looking up up the host name). */
+  and we want to avoid processing (such as looking up the host name). */
 
   if (skipping) return US"";
 
@@ -2544,8 +2568,8 @@ Returns:  pointer to string containing the last three
 static uschar *
 prvs_daystamp(int day_offset)
 {
-uschar *days = store_get(16);
-(void)string_format(days, 16, TIME_T_FMT,
+uschar *days = store_get(32);                /* Need at least 24 for cases */
+(void)string_format(days, 32, TIME_T_FMT,    /* where TIME_T_FMT is %lld */
   (time(NULL) + day_offset*86400)/86400);
 return (Ustrlen(days) >= 3) ? &days[Ustrlen(days)-3] : US"100";
 }
@@ -4713,7 +4737,7 @@ while (*s != 0)
         {
         uschar buffer[2048];
         uschar *string = parse_quote_2047(sub, Ustrlen(sub), headers_charset,
-          buffer, sizeof(buffer));
+          buffer, sizeof(buffer), FALSE);
         yield = string_cat(yield, &size, &ptr, string, Ustrlen(string));
         continue;
         }
@@ -4766,6 +4790,20 @@ while (*s != 0)
 
       /* Handle time period formating */
 
+      case EOP_TIME_EVAL:
+        {
+        int n = readconf_readtime(sub, 0, FALSE);
+        if (n < 0)
+          {
+          expand_string_message = string_sprintf("string \"%s\" is not an "
+            "Exim time interval in \"%s\" operator", sub, name);
+          goto EXPAND_FAILED;
+          }
+        sprintf(CS var_buffer, "%d", n);
+        yield = string_cat(yield, &size, &ptr, var_buffer, Ustrlen(var_buffer));
+        continue;
+        }
+
       case EOP_TIME_INTERVAL:
         {
         int n;