Tidying

diff --git a/src/src/expand.c b/src/src/expand.c
index c78040ea7d29e7544ac5781e320e44a5bad2c12f..b9d78238be9f3194524a4c9612cb8d5bb7c4d339 100644 (file)
--- a/src/src/expand.c
+++ b/src/src/expand.c
@@ -1729,7 +1729,7 @@ if ((Ustrncmp(name, "acl_c", 5) == 0 || Ustrncmp(name, "acl_m", 5) == 0) &&
   {
   tree_node *node =
     tree_search((name[4] == 'c')? acl_var_c : acl_var_m, name + 4);
-  return (node == NULL)? (strict_acl_vars? NULL : US"") : node->data.ptr;
+  return node ? node->data.ptr : strict_acl_vars ? NULL : US"";
   }
 
 /* Handle $auth<n> variables. */
@@ -1764,153 +1764,148 @@ val = vp->value;
 switch (vp->type)
   {
   case vtype_filter_int:
-  if (!filter_running) return NULL;
-  /* Fall through */
-  /* VVVVVVVVVVVV */
+    if (!filter_running) return NULL;
+    /* Fall through */
+    /* VVVVVVVVVVVV */
   case vtype_int:
-  sprintf(CS var_buffer, "%d", *(int *)(val)); /* Integer */
-  return var_buffer;
+    sprintf(CS var_buffer, "%d", *(int *)(val)); /* Integer */
+    return var_buffer;
 
   case vtype_ino:
-  sprintf(CS var_buffer, "%ld", (long int)(*(ino_t *)(val))); /* Inode */
-  return var_buffer;
+    sprintf(CS var_buffer, "%ld", (long int)(*(ino_t *)(val))); /* Inode */
+    return var_buffer;
 
   case vtype_gid:
-  sprintf(CS var_buffer, "%ld", (long int)(*(gid_t *)(val))); /* gid */
-  return var_buffer;
+    sprintf(CS var_buffer, "%ld", (long int)(*(gid_t *)(val))); /* gid */
+    return var_buffer;
 
   case vtype_uid:
-  sprintf(CS var_buffer, "%ld", (long int)(*(uid_t *)(val))); /* uid */
-  return var_buffer;
+    sprintf(CS var_buffer, "%ld", (long int)(*(uid_t *)(val))); /* uid */
+    return var_buffer;
 
   case vtype_bool:
-  sprintf(CS var_buffer, "%s", *(BOOL *)(val) ? "yes" : "no"); /* bool */
-  return var_buffer;
+    sprintf(CS var_buffer, "%s", *(BOOL *)(val) ? "yes" : "no"); /* bool */
+    return var_buffer;
 
   case vtype_stringptr:                      /* Pointer to string */
-  s = *((uschar **)(val));
-  return (s == NULL)? US"" : s;
+    return (s = *((uschar **)(val))) ? s : US"";
 
   case vtype_pid:
-  sprintf(CS var_buffer, "%d", (int)getpid()); /* pid */
-  return var_buffer;
+    sprintf(CS var_buffer, "%d", (int)getpid()); /* pid */
+    return var_buffer;
 
   case vtype_load_avg:
-  sprintf(CS var_buffer, "%d", OS_GETLOADAVG()); /* load_average */
-  return var_buffer;
+    sprintf(CS var_buffer, "%d", OS_GETLOADAVG()); /* load_average */
+    return var_buffer;
 
   case vtype_host_lookup:                    /* Lookup if not done so */
-  if (sender_host_name == NULL && sender_host_address != NULL &&
-      !host_lookup_failed && host_name_lookup() == OK)
-    host_build_sender_fullhost();
-  return (sender_host_name == NULL)? US"" : sender_host_name;
+    if (sender_host_name == NULL && sender_host_address != NULL &&
+       !host_lookup_failed && host_name_lookup() == OK)
+      host_build_sender_fullhost();
+    return (sender_host_name == NULL)? US"" : sender_host_name;
 
   case vtype_localpart:                      /* Get local part from address */
-  s = *((uschar **)(val));
-  if (s == NULL) return US"";
-  domain = Ustrrchr(s, '@');
-  if (domain == NULL) return s;
-  if (domain - s > sizeof(var_buffer) - 1)
-    log_write(0, LOG_MAIN|LOG_PANIC_DIE, "local part longer than " SIZE_T_FMT
-       " in string expansion", sizeof(var_buffer));
-  Ustrncpy(var_buffer, s, domain - s);
-  var_buffer[domain - s] = 0;
-  return var_buffer;
+    s = *((uschar **)(val));
+    if (s == NULL) return US"";
+    domain = Ustrrchr(s, '@');
+    if (domain == NULL) return s;
+    if (domain - s > sizeof(var_buffer) - 1)
+      log_write(0, LOG_MAIN|LOG_PANIC_DIE, "local part longer than " SIZE_T_FMT
+         " in string expansion", sizeof(var_buffer));
+    Ustrncpy(var_buffer, s, domain - s);
+    var_buffer[domain - s] = 0;
+    return var_buffer;
 
   case vtype_domain:                         /* Get domain from address */
-  s = *((uschar **)(val));
-  if (s == NULL) return US"";
-  domain = Ustrrchr(s, '@');
-  return (domain == NULL)? US"" : domain + 1;
+    s = *((uschar **)(val));
+    if (s == NULL) return US"";
+    domain = Ustrrchr(s, '@');
+    return (domain == NULL)? US"" : domain + 1;
 
   case vtype_msgheaders:
-  return find_header(NULL, exists_only, newsize, FALSE, NULL);
+    return find_header(NULL, exists_only, newsize, FALSE, NULL);
 
   case vtype_msgheaders_raw:
-  return find_header(NULL, exists_only, newsize, TRUE, NULL);
+    return find_header(NULL, exists_only, newsize, TRUE, NULL);
 
   case vtype_msgbody:                        /* Pointer to msgbody string */
   case vtype_msgbody_end:                    /* Ditto, the end of the msg */
-  ss = (uschar **)(val);
-  if (*ss == NULL && deliver_datafile >= 0)  /* Read body when needed */
-    {
-    uschar *body;
-    off_t start_offset = SPOOL_DATA_START_OFFSET;
-    int len = message_body_visible;
-    if (len > message_size) len = message_size;
-    *ss = body = store_malloc(len+1);
-    body[0] = 0;
-    if (vp->type == vtype_msgbody_end)
+    ss = (uschar **)(val);
+    if (*ss == NULL && deliver_datafile >= 0)  /* Read body when needed */
       {
-      struct stat statbuf;
-      if (fstat(deliver_datafile, &statbuf) == 0)
+      uschar *body;
+      off_t start_offset = SPOOL_DATA_START_OFFSET;
+      int len = message_body_visible;
+      if (len > message_size) len = message_size;
+      *ss = body = store_malloc(len+1);
+      body[0] = 0;
+      if (vp->type == vtype_msgbody_end)
        {
-       start_offset = statbuf.st_size - len;
-       if (start_offset < SPOOL_DATA_START_OFFSET)
-         start_offset = SPOOL_DATA_START_OFFSET;
-       }
-      }
-    lseek(deliver_datafile, start_offset, SEEK_SET);
-    len = read(deliver_datafile, body, len);
-    if (len > 0)
-      {
-      body[len] = 0;
-      if (message_body_newlines)   /* Separate loops for efficiency */
-       {
-       while (len > 0)
-         { if (body[--len] == 0) body[len] = ' '; }
+       struct stat statbuf;
+       if (fstat(deliver_datafile, &statbuf) == 0)
+         {
+         start_offset = statbuf.st_size - len;
+         if (start_offset < SPOOL_DATA_START_OFFSET)
+           start_offset = SPOOL_DATA_START_OFFSET;
+         }
        }
-      else
+      lseek(deliver_datafile, start_offset, SEEK_SET);
+      len = read(deliver_datafile, body, len);
+      if (len > 0)
        {
-       while (len > 0)
-         { if (body[--len] == '\n' || body[len] == 0) body[len] = ' '; }
+       body[len] = 0;
+       if (message_body_newlines)   /* Separate loops for efficiency */
+         while (len > 0)
+           { if (body[--len] == 0) body[len] = ' '; }
+       else
+         while (len > 0)
+           { if (body[--len] == '\n' || body[len] == 0) body[len] = ' '; }
        }
       }
-    }
-  return (*ss == NULL)? US"" : *ss;
+    return (*ss == NULL)? US"" : *ss;
 
   case vtype_todbsdin:                       /* BSD inbox time of day */
-  return tod_stamp(tod_bsdin);
+    return tod_stamp(tod_bsdin);
 
   case vtype_tode:                           /* Unix epoch time of day */
-  return tod_stamp(tod_epoch);
+    return tod_stamp(tod_epoch);
 
   case vtype_todel:                          /* Unix epoch/usec time of day */
-  return tod_stamp(tod_epoch_l);
+    return tod_stamp(tod_epoch_l);
 
   case vtype_todf:                           /* Full time of day */
-  return tod_stamp(tod_full);
+    return tod_stamp(tod_full);
 
   case vtype_todl:                           /* Log format time of day */
-  return tod_stamp(tod_log_bare);            /* (without timezone) */
+    return tod_stamp(tod_log_bare);            /* (without timezone) */
 
   case vtype_todzone:                        /* Time zone offset only */
-  return tod_stamp(tod_zone);
+    return tod_stamp(tod_zone);
 
   case vtype_todzulu:                        /* Zulu time */
-  return tod_stamp(tod_zulu);
+    return tod_stamp(tod_zulu);
 
   case vtype_todlf:                          /* Log file datestamp tod */
-  return tod_stamp(tod_log_datestamp_daily);
+    return tod_stamp(tod_log_datestamp_daily);
 
   case vtype_reply:                          /* Get reply address */
-  s = find_header(US"reply-to:", exists_only, newsize, TRUE,
-    headers_charset);
-  if (s != NULL) while (isspace(*s)) s++;
-  if (s == NULL || *s == 0)
-    {
-    *newsize = 0;                            /* For the *s==0 case */
-    s = find_header(US"from:", exists_only, newsize, TRUE, headers_charset);
-    }
-  if (s != NULL)
-    {
-    uschar *t;
-    while (isspace(*s)) s++;
-    for (t = s; *t != 0; t++) if (*t == '\n') *t = ' ';
-    while (t > s && isspace(t[-1])) t--;
-    *t = 0;
-    }
-  return (s == NULL)? US"" : s;
+    s = find_header(US"reply-to:", exists_only, newsize, TRUE,
+      headers_charset);
+    if (s != NULL) while (isspace(*s)) s++;
+    if (s == NULL || *s == 0)
+      {
+      *newsize = 0;                            /* For the *s==0 case */
+      s = find_header(US"from:", exists_only, newsize, TRUE, headers_charset);
+      }
+    if (s != NULL)
+      {
+      uschar *t;
+      while (isspace(*s)) s++;
+      for (t = s; *t != 0; t++) if (*t == '\n') *t = ' ';
+      while (t > s && isspace(t[-1])) t--;
+      *t = 0;
+      }
+    return (s == NULL)? US"" : s;
 
   case vtype_string_func:
     {
@@ -1935,12 +1930,12 @@ switch (vp->type)
   return var_buffer;
 
   case vtype_cert:
-  return *(void **)val ? US"<cert>" : US"";
+    return *(void **)val ? US"<cert>" : US"";
 
-  #ifndef DISABLE_DKIM
+#ifndef DISABLE_DKIM
   case vtype_dkim:
-  return dkim_exim_expand_query((int)(long)val);
-  #endif
+    return dkim_exim_expand_query((int)(long)val);
+#endif
 
   }
 
@@ -3936,16 +3931,12 @@ while (*s != 0)
 
     /* Variable */
 
-    else
+    else if (!(value = find_variable(name, FALSE, skipping, &newsize)))
       {
-      value = find_variable(name, FALSE, skipping, &newsize);
-      if (value == NULL)
-        {
-        expand_string_message =
-          string_sprintf("unknown variable name \"%s\"", name);
-          check_variable_error_message(name);
-        goto EXPAND_FAILED;
-        }
+      expand_string_message =
+       string_sprintf("unknown variable name \"%s\"", name);
+       check_variable_error_message(name);
+      goto EXPAND_FAILED;
       }
 
     /* If the data is known to be in a new buffer, newsize will be set to the