external/ibm-public/postfix/dist/src/global/cleanup_strflags.c

   1 /*      $NetBSD$        */
   2
   3 /*++
   4 /* NAME
   5 /*      cleanup_strflags 3
   6 /* SUMMARY
   7 /*      cleanup flags code to string
   8 /* SYNOPSIS
   9 /*      #include <cleanup_user.h>
  10 /*
  11 /*      const char *cleanup_strflags(code)
  12 /*      int     code;
  13 /* DESCRIPTION
  14 /*      cleanup_strflags() maps a CLEANUP_FLAGS code to printable string.
  15 /*      The result is for read purposes only. The result is overwritten
  16 /*      upon each call.
  17 /* LICENSE
  18 /* .ad
  19 /* .fi
  20 /*      The Secure Mailer license must be distributed with this software.
  21 /* AUTHOR(S)
  22 /*      Wietse Venema
  23 /*      IBM T.J. Watson Research
  24 /*      P.O. Box 704
  25 /*      Yorktown Heights, NY 10598, USA
  26 /*--*/
  27
  28 /* System library. */
  29
  30 #include <sys_defs.h>
  31
  32 /* Utility library. */
  33
  34 #include <msg.h>
  35 #include <vstring.h>
  36
  37 /* Global library. */
  38
  39 #include "cleanup_user.h"
  40
  41  /*
  42   * Mapping from flags code to printable string.
  43   */
  44 struct cleanup_flag_map {
  45     unsigned flag;
  46     const char *text;
  47 };
  48
  49 static struct cleanup_flag_map cleanup_flag_map[] = {
  50     CLEANUP_FLAG_BOUNCE, "enable_bad_mail_bounce",
  51     CLEANUP_FLAG_FILTER, "enable_header_body_filter",
  52     CLEANUP_FLAG_HOLD, "hold_message",
  53     CLEANUP_FLAG_DISCARD, "discard_message",
  54     CLEANUP_FLAG_BCC_OK, "enable_automatic_bcc",
  55     CLEANUP_FLAG_MAP_OK, "enable_address_mapping",
  56     CLEANUP_FLAG_MILTER, "enable_milters",
  57     CLEANUP_FLAG_SMTP_REPLY, "enable_smtp_reply",
  58 };
  59
  60 /* cleanup_strflags - map flags code to printable string */
  61
  62 const char *cleanup_strflags(unsigned flags)
  63 {
  64     static VSTRING *result;
  65     unsigned i;
  66
  67     if (flags == 0)
  68         return ("none");
  69
  70     if (result == 0)
  71         result = vstring_alloc(20);
  72     else
  73         VSTRING_RESET(result);
  74
  75     for (i = 0; i < sizeof(cleanup_flag_map) / sizeof(cleanup_flag_map[0]); i++) {
  76         if (cleanup_flag_map[i].flag & flags) {
  77             vstring_sprintf_append(result, "%s ", cleanup_flag_map[i].text);
  78             flags &= ~cleanup_flag_map[i].flag;
  79         }
  80     }
  81
  82     if (flags != 0 || VSTRING_LEN(result) == 0)
  83         msg_panic("cleanup_strflags: unrecognized flag value(s) 0x%x", flags);
  84
  85     vstring_truncate(result, VSTRING_LEN(result) - 1);
  86     VSTRING_TERMINATE(result);
  87
  88     return (vstring_str(result));
  89 }