contrib/sendmail-8.13.4/include/sendmail/sendmail.h

   1 /*
   2  * Copyright (c) 1998-2001 Sendmail, Inc. and its suppliers.
   3  *      All rights reserved.
   4  * Copyright (c) 1983, 1995-1997 Eric P. Allman.  All rights reserved.
   5  * Copyright (c) 1988, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * By using this file, you agree to the terms and conditions set
   9  * forth in the LICENSE file which can be found at the top level of
  10  * the sendmail distribution.
  11  *
  12  *
  13  *      $Id: sendmail.h,v 8.68 2002/07/01 22:18:53 gshapiro Exp $
  14  */
  15
  16 /*
  17 **  SENDMAIL.H -- Global definitions for sendmail.
  18 */
  19
  20 #include <stdio.h>
  21 #include <sm/bitops.h>
  22 #include <sm/io.h>
  23 #include <sm/string.h>
  24 #include "conf.h"
  25
  26 /**********************************************************************
  27 **  Table sizes, etc....
  28 **      There shouldn't be much need to change these....
  29 **********************************************************************/
  30 #ifndef MAXMAILERS
  31 # define MAXMAILERS     25      /* maximum mailers known to system */
  32 #endif /* ! MAXMAILERS */
  33
  34 /*
  35 **  Flags passed to safefile/safedirpath.
  36 */
  37
  38 #define SFF_ANYFILE     0L              /* no special restrictions */
  39 #define SFF_MUSTOWN     0x00000001L     /* user must own this file */
  40 #define SFF_NOSLINK     0x00000002L     /* file cannot be a symbolic link */
  41 #define SFF_ROOTOK      0x00000004L     /* ok for root to own this file */
  42 #define SFF_RUNASREALUID 0x00000008L    /* if no ctladdr, run as real uid */
  43 #define SFF_NOPATHCHECK 0x00000010L     /* don't bother checking dir path */
  44 #define SFF_SETUIDOK    0x00000020L     /* set-user-ID files are ok */
  45 #define SFF_CREAT       0x00000040L     /* ok to create file if necessary */
  46 #define SFF_REGONLY     0x00000080L     /* regular files only */
  47 #define SFF_SAFEDIRPATH 0x00000100L     /* no writable directories allowed */
  48 #define SFF_NOHLINK     0x00000200L     /* file cannot have hard links */
  49 #define SFF_NOWLINK     0x00000400L     /* links only in non-writable dirs */
  50 #define SFF_NOGWFILES   0x00000800L     /* disallow world writable files */
  51 #define SFF_NOWWFILES   0x00001000L     /* disallow group writable files */
  52 #define SFF_OPENASROOT  0x00002000L     /* open as root instead of real user */
  53 #define SFF_NOLOCK      0x00004000L     /* don't lock the file */
  54 #define SFF_NOGRFILES   0x00008000L     /* disallow g readable files */
  55 #define SFF_NOWRFILES   0x00010000L     /* disallow o readable files */
  56 #define SFF_NOTEXCL     0x00020000L     /* creates don't need to be exclusive */
  57 #define SFF_EXECOK      0x00040000L     /* executable files are ok (E_SM_ISEXEC) */
  58 #define SFF_NBLOCK      0x00080000L     /* use a non-blocking lock */
  59 #define SFF_NORFILES    (SFF_NOGRFILES|SFF_NOWRFILES)
  60
  61 /* pseudo-flags */
  62 #define SFF_NOLINK      (SFF_NOHLINK|SFF_NOSLINK)
  63
  64 /* functions */
  65 extern int      safefile __P((char *, UID_T, GID_T, char *, long, int, struct stat *));
  66 extern int      safedirpath __P((char *, UID_T, GID_T, char *, long, int, int));
  67 extern int      safeopen __P((char *, int, int, long));
  68 extern SM_FILE_T*safefopen __P((char *, int, int, long));
  69 extern int      dfopen __P((char *, int, int, long));
  70 extern bool     filechanged __P((char *, int, struct stat *));
  71
  72 /*
  73 **  DontBlameSendmail options
  74 **
  75 **      Hopefully nobody uses these.
  76 */
  77
  78 #define DBS_SAFE                                        0
  79 #define DBS_ASSUMESAFECHOWN                             1
  80 #define DBS_GROUPWRITABLEDIRPATHSAFE                    2
  81 #define DBS_GROUPWRITABLEFORWARDFILESAFE                3
  82 #define DBS_GROUPWRITABLEINCLUDEFILESAFE                4
  83 #define DBS_GROUPWRITABLEALIASFILE                      5
  84 #define DBS_WORLDWRITABLEALIASFILE                      6
  85 #define DBS_FORWARDFILEINUNSAFEDIRPATH                  7
  86 #define DBS_MAPINUNSAFEDIRPATH                          8
  87 #define DBS_LINKEDALIASFILEINWRITABLEDIR                9
  88 #define DBS_LINKEDCLASSFILEINWRITABLEDIR                10
  89 #define DBS_LINKEDFORWARDFILEINWRITABLEDIR              11
  90 #define DBS_LINKEDINCLUDEFILEINWRITABLEDIR              12
  91 #define DBS_LINKEDMAPINWRITABLEDIR                      13
  92 #define DBS_LINKEDSERVICESWITCHFILEINWRITABLEDIR        14
  93 #define DBS_FILEDELIVERYTOHARDLINK                      15
  94 #define DBS_FILEDELIVERYTOSYMLINK                       16
  95 #define DBS_WRITEMAPTOHARDLINK                          17
  96 #define DBS_WRITEMAPTOSYMLINK                           18
  97 #define DBS_WRITESTATSTOHARDLINK                        19
  98 #define DBS_WRITESTATSTOSYMLINK                         20
  99 #define DBS_FORWARDFILEINGROUPWRITABLEDIRPATH           21
 100 #define DBS_INCLUDEFILEINGROUPWRITABLEDIRPATH           22
 101 #define DBS_CLASSFILEINUNSAFEDIRPATH                    23
 102 #define DBS_ERRORHEADERINUNSAFEDIRPATH                  24
 103 #define DBS_HELPFILEINUNSAFEDIRPATH                     25
 104 #define DBS_FORWARDFILEINUNSAFEDIRPATHSAFE              26
 105 #define DBS_INCLUDEFILEINUNSAFEDIRPATHSAFE              27
 106 #define DBS_RUNPROGRAMINUNSAFEDIRPATH                   28
 107 #define DBS_RUNWRITABLEPROGRAM                          29
 108 #define DBS_INCLUDEFILEINUNSAFEDIRPATH                  30
 109 #define DBS_NONROOTSAFEADDR                             31
 110 #define DBS_TRUSTSTICKYBIT                              32
 111 #define DBS_DONTWARNFORWARDFILEINUNSAFEDIRPATH          33
 112 #define DBS_INSUFFICIENTENTROPY                         34
 113 #define DBS_GROUPREADABLESASLDBFILE                     35
 114 #define DBS_GROUPWRITABLESASLDBFILE                     36
 115 #define DBS_GROUPWRITABLEFORWARDFILE                    37
 116 #define DBS_GROUPWRITABLEINCLUDEFILE                    38
 117 #define DBS_WORLDWRITABLEFORWARDFILE                    39
 118 #define DBS_WORLDWRITABLEINCLUDEFILE                    40
 119 #define DBS_GROUPREADABLEKEYFILE                        41
 120 #if _FFR_GROUPREADABLEAUTHINFOFILE
 121 # define DBS_GROUPREADABLEAUTHINFOFILE                  42
 122 #endif /* _FFR_GROUPREADABLEAUTHINFOFILE */
 123
 124 /* struct defining such things */
 125 struct dbsval
 126 {
 127         char            *dbs_name;      /* name of DontBlameSendmail flag */
 128         unsigned char   dbs_flag;       /* numeric level */
 129 };
 130
 131 /* Flags for submitmode */
 132 #define SUBMIT_UNKNOWN  0x0000  /* unknown agent type */
 133 #define SUBMIT_MTA      0x0001  /* act like a message transfer agent */
 134 #define SUBMIT_MSA      0x0002  /* act like a message submission agent */
 135