diplodocus.org Git - nmh/blob - mts/smtp/smtp.h

   1
   2 /*
   3  * smtp.h -- definitions for the nmh SMTP Interface
   4  */
   5
   6 /* length is the length of the string in text[], which is also NUL
   7  * terminated, so s.text[s.length] should always be 0.
   8  */
   9 struct smtp {
  10     int code;
  11     int length;
  12     char text[BUFSIZ];
  13 };
  14
  15 /*
  16  * prototypes
  17  */
  18 /* int client (); */
  19 int sm_init (char *, char *, char *, int, int, int, int, const char *,
  20              const char *, const char *, int);
  21 int sm_winit (char *, int, int);
  22 int sm_wadr (char *, char *, char *);
  23 int sm_waend (void);
  24 int sm_wtxt (char *, int);
  25 int sm_wtend (void);
  26 int sm_end (int);
  27 char *rp_string (int);
  28
  29 /* The remainder of this file is derived from "mmdf.h" */
  30
  31 /*
  32  *     Copyright (C) 1979,1980,1981,1982,1983  University of Delaware
  33  *     Used by permission, May, 1984.
  34  */
  35
  36 /*
  37  *     MULTI-CHANNEL MEMO DISTRIBUTION FACILITY  (MMDF)
  38  *
  39  *
  40  *     Copyright (C) 1979,1980,1981,1982,1983  University of Delaware
  41  *
  42  *     Department of Electrical Engineering
  43  *     University of Delaware
  44  *     Newark, Delaware  19711
  45  *
  46  *     Phone:  (302) 738-1163
  47  *
  48  *
  49  *     This program module was developed as part of the University
  50  *     of Delaware's Multi-Channel Memo Distribution Facility (MMDF).
  51  *
  52  *     Acquisition, use, and distribution of this module and its listings
  53  *     are subject restricted to the terms of a license agreement.
  54  *     Documents describing systems using this module must cite its source.
  55  *
  56  *     The above statements must be retained with all copies of this
  57  *     program and may not be removed without the consent of the
  58  *     University of Delaware.
  59  *
  60  */
  61
  62 /*                      Reply Codes for MMDF
  63  *
  64  *  Based on: "Revised FTP Reply Codes", by Jon Postel & Nancy Neigus Arpanet
  65  *      RFC 640 / NIC 30843, in the "Arpanet Protocol Handbook", E.  Feinler
  66  *      and J. Postel (eds.), NIC 7104, Network Information Center, SRI
  67  *      International:  Menlo Park, CA.  (NTIS AD-A0038901)
  68  *
  69  *  Actual values are different, but scheme is same.  Codes must fit into
  70  *  8-bits (to pass on exit() calls); fields are packed 2-3-3 and interpreted
  71  *  as octal numbers.
  72  *
  73  *  Basic format:
  74  *
  75  *      0yz: positive completion; entire action done
  76  *      1yz: positive intermediate; only part done
  77  *      2yz: Transient negative completion; may work later
  78  *      3yz: Permanent negative completion; you lose forever
  79  *
  80  *      x0z: syntax
  81  *      x1z: general; doesn't fit any other category
  82  *      x2z: connections; truly transfer-related
  83  *      x3z: user/authentication/account
  84  *      x4x: mail
  85  *      x5z: file system
  86  *
  87  *      3-bit z field is unique to the reply.  In the following,
  88  *      the RP_xVAL defines are available for masking to obtain a field.
  89  */
  90
  91 /*
  92  * FIELD DEFINITIONS & BASIC VALUES
  93  */
  94
  95 /* FIELD 1:  Basic degree of success (2-bits) */
  96
  97 #define RP_BTYP '\200'      /* good vs. bad; on => bad            */
  98 #define RP_BVAL '\300'      /* basic degree of success            */
  99
 100 #define RP_BOK  '\000'      /* went fine; all done                */
 101 #define RP_BPOK '\100'      /* only the first part got done       */
 102 #define RP_BTNO '\200'      /* temporary failure; try later       */
 103 #define RP_BNO  '\300'      /* not now, nor never; you lose       */
 104
 105 /* FIELD 2:  Basic domain of discourse (3-bits) */
 106
 107 #define RP_CVAL '\070'      /* basic category (domain) of reply   */
 108
 109 #define RP_CSYN '\000'      /* purely a matter of form            */
 110 #define RP_CGEN '\010'      /* couldn't find anywhere else for it */
 111 #define RP_CCON '\020'      /* data-transfer-related issue        */
 112 #define RP_CUSR '\030'      /* pertaining to the user             */
 113 #define RP_CMAI '\040'      /* specific to mail semantics         */
 114 #define RP_CFIL '\050'      /* file system                        */
 115 #define RP_CLIO '\060'      /* local i/o system                   */
 116
 117 /* FIELD 3:  Specific value for this reply (3-bits) */
 118
 119 #define RP_SVAL '\007'      /* specific value of reply            */
 120
 121
 122 /*
 123  * SPECIFIC SUCCESS VALUES
 124  */
 125
 126 /*
 127  * Complete Success
 128  */
 129
 130 /* done (e.g., w/transaction) */
 131 #define RP_DONE (RP_BOK | RP_CGEN | '\000')
 132
 133 /* general-purpose OK */
 134 #define RP_OK   (RP_BOK | RP_CGEN | '\001')
 135
 136 /* message is accepted (w/text) */
 137 #define RP_MOK  (RP_BOK | RP_CMAI | '\000')
 138
 139
 140 /*
 141  * Partial Success
 142  */
 143
 144 /* you are the requestor */
 145 #define RP_MAST (RP_BPOK| RP_CGEN | '\000')
 146
 147 /* you are the requestee */
 148 #define RP_SLAV (RP_BPOK| RP_CGEN | '\001')
 149
 150 /* message address is accepted */
 151 #define RP_AOK  (RP_BPOK| RP_CMAI | '\000')
 152
 153
 154 /*
 155  * SPECIFIC FALURE VALUES
 156  */
 157
 158 /*
 159  * Partial Failure
 160  */
 161
 162 /* not now; maybe later */
 163 #define RP_AGN  (RP_BTNO | RP_CGEN | '\000')
 164
 165 /* timeout */
 166 #define RP_TIME (RP_BTNO | RP_CGEN | '\001')
 167
 168 /* no-op; nothing done, this time */
 169 #define RP_NOOP (RP_BTNO | RP_CGEN | '\002')
 170
 171 /* encountered an end of file */
 172 #define RP_EOF  (RP_BTNO | RP_CGEN | '\003')
 173
 174 /* channel went bad */
 175 #define RP_NET  (RP_BTNO | RP_CCON | '\000')
 176
 177 /* foreign host screwed up */
 178 #define RP_BHST (RP_BTNO | RP_CCON | '\001')
 179
 180 /* host went away */
 181 #define RP_DHST (RP_BTNO | RP_CCON | '\002')
 182
 183 /* general net i/o problem */
 184 #define RP_NIO  (RP_BTNO | RP_CCON | '\004')
 185
 186 /* error reading/writing file */
 187 #define RP_FIO  (RP_BTNO | RP_CFIL | '\000')
 188
 189 /* unable to create file */
 190 #define RP_FCRT (RP_BTNO | RP_CFIL | '\001')
 191
 192 /* unable to open file */
 193 #define RP_FOPN (RP_BTNO | RP_CFIL | '\002')
 194
 195 /* general local i/o problem */
 196 #define RP_LIO  (RP_BTNO | RP_CLIO | '\000')
 197
 198 /* resource currently locked */
 199 #define RP_LOCK (RP_BTNO | RP_CLIO | '\001')
 200
 201
 202 /*
 203  * Complete Failure
 204  */
 205
 206 /* bad mechanism/path; try alternate? */
 207 #define RP_MECH (RP_BNO | RP_CGEN | '\000')
 208
 209 /* general-purpose NO */
 210 #define RP_NO   (RP_BNO | RP_CGEN | '\001')
 211
 212 /* general prototocol error */
 213 #define RP_PROT (RP_BNO | RP_CCON | '\000')
 214
 215 /* bad reply code (PERMANENT ERROR) */
 216 #define RP_RPLY (RP_BNO | RP_CCON | '\001')
 217
 218 /* couldn't deliver */
 219 #define RP_NDEL (RP_BNO | RP_CMAI | '\000')
 220
 221 /* couldn't parse the request */
 222 #define RP_HUH  (RP_BNO | RP_CSYN | '\000')
 223
 224 /* no such command defined */
 225 #define RP_NCMD (RP_BNO | RP_CSYN | '\001')
 226
 227 /* bad parameter */
 228 #define RP_PARM (RP_BNO | RP_CSYN | '\002')
 229
 230 /* command not implemented */
 231 #define RP_UCMD (RP_BNO | RP_CSYN | '\003')
 232
 233 /* unknown user */
 234 #define RP_USER (RP_BNO | RP_CUSR | '\000')
 235
 236
 237 /*
 238  * Macros to access reply info
 239  */
 240
 241 /* get the entire return value */
 242 #define rp_gval(val)    ((signed char) (val))
 243
 244
 245 /*
 246  * The next three give the field's bits, within the whole value
 247  */
 248
 249 /* get the basic part of return value */
 250 #define rp_gbval(val)   (rp_gval (val) & RP_BVAL)
 251
 252 /* get the domain part of value */
 253 #define rp_gcval(val)   (rp_gval (val) & RP_CVAL)
 254
 255 /* get the specific part of value */
 256 #define rp_gsval(val)   (rp_gval (val) & RP_SVAL)
 257
 258
 259 /*
 260  * The next three give the numeric value within the field
 261  */
 262
 263 /* get the basic part right-shifted */
 264 #define rp_gbbit(val)   ((rp_gval (val) >> 6) & 03)
 265
 266 /* get the domain part right-shifted */
 267 #define rp_gcbit(val)   ((rp_gval (val) >> 3) & 07)
 268
 269 /* get the specific part right-shifted */
 270 #define rp_gsbit(val)   (rp_gval (val) & 07)
 271
 272
 273 /*
 274  * MACHINE DEPENDENCY
 275  *
 276  * The following treat the value as strictly numeric.
 277  * It relies on the negative values being numerically
 278  * negative.
 279  */
 280
 281 /* is return value positive? */
 282 #define rp_isgood(val)  (rp_gval (val) >= 0)
 283
 284 /* is return value negative? */
 285 #define rp_isbad(val)   (rp_gval (val) < 0)
 286