4.3BSD - /usr/src/new/mh/uip/distsbr.c

   1: /* distsbr.c - routines to do additional "dist-style" processing */
   2: 
   3: #include "../h/mh.h"
   4: #include <ctype.h>
   5: #include <stdio.h>
   6: 
   7: 
   8: static int  hdrfd = NOTOK;
   9: static int  txtfd = NOTOK;
  10: 
  11: 
  12: long    lseek ();
  13: 
  14: /*  */
  15: 
  16: #define BADHDR  "please re-edit %s to remove the ``%s'' header!"
  17: #define BADTXT  "please re-edit %s to consist of headers only!"
  18: #define BADMSG  "please re-edit %s to include a ``Resent-To:''!"
  19: #define BADRFT  "please re-edit %s and fix that header!"
  20: 
  21: int distout (drft, msgnam, backup)
  22: register char   *drft,
  23:        *msgnam,
  24:        *backup;
  25: {
  26:     int     state;
  27:     register char  *dp,
  28:                    *resent;
  29:     char    name[NAMESZ],
  30:             buffer[BUFSIZ];
  31:     register    FILE *ifp,
  32:              *ofp;
  33: 
  34:     if (rename (drft, strcpy (backup, m_backup (drft))) == NOTOK)
  35:     adios (backup, "unable to rename %s to",drft);
  36:     if ((ifp = fopen (backup, "r")) == NULL)
  37:     adios (backup, "unable to read");
  38: 
  39:     if ((ofp = fopen (drft, "w")) == NULL)
  40:     adios (drft, "unable to create temporary file");
  41:     (void) chmod (drft, m_gmprot ());
  42: 
  43:     ready_msg (msgnam);
  44:     (void) lseek (hdrfd, 0L, 0);    /* msgnam not accurate */
  45:     cpydata (hdrfd, fileno (ofp), msgnam, drft);
  46: 
  47: /*  */
  48: 
  49:     for (state = FLD, resent = NULL;;)
  50:     switch (state =
  51:         m_getfld (state, name, buffer, sizeof buffer, ifp)) {
  52:         case FLD:
  53:         case FLDPLUS:
  54:         case FLDEOF:
  55:         if (uprf (name, "distribute-"))
  56:             (void) sprintf (name, "%s%s", "Resent", &name[10]);
  57:         if (uprf (name, "distribution-"))
  58:             (void) sprintf (name, "%s%s", "Resent", &name[12]);
  59:         if (!uprf (name, "resent")) {
  60:             advise (NULLCP, BADHDR, "draft", name);
  61:             goto leave_bad;
  62:         }
  63:         if (state == FLD)
  64:             resent = add (":", add (name, resent));
  65:         resent = add (buffer, resent);
  66:         fprintf (ofp, "%s: %s", name, buffer);
  67:         while (state == FLDPLUS) {
  68:             state = m_getfld (state, name,
  69:                 buffer, sizeof buffer, ifp);
  70:             resent = add (buffer, resent);
  71:             fputs (buffer, ofp);
  72:         }
  73:         if (state == FLDEOF)
  74:             goto process;
  75:         break;
  76: 
  77:         case BODY:
  78:         case BODYEOF:
  79:         for (dp = buffer; *dp; dp++)
  80:             if (!isspace (*dp)) {
  81:             advise (NULLCP, BADTXT, "draft");
  82:             goto leave_bad;
  83:             }
  84: 
  85:         case FILEEOF:
  86:         goto process;
  87: 
  88:         case LENERR:
  89:         case FMTERR:
  90:         advise (NULLCP, BADRFT, "draft");
  91:     leave_bad: ;
  92:         (void) fclose (ifp);
  93:         (void) fclose (ofp);
  94:         (void) unlink (drft);
  95:         if (rename (backup, drft) == NOTOK)
  96:             adios (drft, "unable to rename %s to", backup);
  97:         return NOTOK;
  98: 
  99:         default:
 100:         adios (NULLCP, "getfld() returned %d", state);
 101:     }
 102: process: ;
 103:     (void) fclose (ifp);
 104:     (void) fflush (ofp);
 105: 
 106: /*  */
 107: 
 108:     if (!resent) {
 109:     advise (NULLCP, BADMSG, "draft");
 110:     (void) fclose (ofp);
 111:     (void) unlink (drft);
 112:     if (rename (backup, drft) == NOTOK)
 113:         adios (drft, "unable to rename %s to", backup);
 114:     return NOTOK;
 115:     }
 116:     free (resent);
 117: 
 118:     if (txtfd != NOTOK) {
 119:     (void) lseek (txtfd, 0L, 0);    /* msgnam not accurate */
 120:     cpydata (txtfd, fileno (ofp), msgnam, drft);
 121:     }
 122: 
 123:     (void) fclose (ofp);
 124: 
 125:     return OK;
 126: }
 127: 
 128: /*  */
 129: 
 130: static  ready_msg (msgnam)
 131: register char   *msgnam;
 132: {
 133:     int     state,
 134:             out;
 135:     char    name[NAMESZ],
 136:             buffer[BUFSIZ],
 137:             tmpfil[BUFSIZ];
 138:     register    FILE *ifp,
 139:              *ofp;
 140: 
 141:     if (hdrfd != NOTOK)
 142:     (void) close (hdrfd), hdrfd = NOTOK;
 143:     if (txtfd != NOTOK)
 144:     (void) close (txtfd), txtfd = NOTOK;
 145: 
 146:     if ((ifp = fopen (msgnam, "r")) == NULL)
 147:     adios (msgnam, "unable to open message");
 148: 
 149:     (void) strcpy (tmpfil, m_tmpfil ("dist"));
 150:     if ((hdrfd = creat (tmpfil, 0600)) == NOTOK)
 151:     adios (tmpfil, "unable to create temporary file");
 152:     (void) close (hdrfd);
 153:     if ((hdrfd = open (tmpfil, 2)) == NOTOK)
 154:     adios (tmpfil, "unable to re-open temporary file");
 155:     if ((out = dup (hdrfd)) == NOTOK
 156:         || (ofp = fdopen (out, "w")) == NULL)
 157:     adios (NULLCP, "no file descriptors -- you lose big");
 158:     (void) unlink (tmpfil);
 159: 
 160: /*  */
 161: 
 162:     for (state = FLD;;)
 163:     switch (state =
 164:         m_getfld (state, name, buffer, sizeof buffer, ifp)) {
 165:         case FLD:
 166:         case FLDPLUS:
 167:         case FLDEOF:
 168:         if (uprf (name, "resent"))
 169:             fprintf (ofp, "Prev-");
 170:         fprintf (ofp, "%s: %s", name, buffer);
 171:         while (state == FLDPLUS) {
 172:             state = m_getfld (state, name,
 173:                 buffer, sizeof buffer, ifp);
 174:             fputs (buffer, ofp);
 175:         }
 176:         if (state == FLDEOF)
 177:             goto process;
 178:         break;
 179: 
 180:         case BODY:
 181:         case BODYEOF:
 182:         (void) fclose (ofp);
 183: 
 184:         (void) strcpy (tmpfil, m_tmpfil ("dist"));
 185:         if ((txtfd = creat (tmpfil, 0600)) == NOTOK)
 186:             adios (tmpfil, "unable to create temporary file");
 187:         (void) close (txtfd);
 188:         if ((txtfd = open (tmpfil, 2)) == NOTOK)
 189:             adios (tmpfil, "unable to re-open temporary file");
 190:         if ((out = dup (txtfd)) == NOTOK
 191:             || (ofp = fdopen (out, "w")) == NULL)
 192:             adios (NULLCP, "no file descriptors -- you lose big");
 193:         (void) unlink (tmpfil);
 194:         fprintf (ofp, "\n%s", buffer);
 195:         while (state == BODY) {
 196:             state = m_getfld (state, name,
 197:                 buffer, sizeof buffer, ifp);
 198:             fputs (buffer, ofp);
 199:         }
 200:         case FILEEOF:
 201:         goto process;
 202: 
 203:         case LENERR:
 204:         case FMTERR:
 205:         adios (NULLCP, "format error in message %s", msgnam);
 206: 
 207:         default:
 208:         adios (NULLCP, "getfld() returned %d", state);
 209:     }
 210: process: ;
 211:     (void) fclose (ifp);
 212:     (void) fclose (ofp);
 213: }

Defined functions

Defined variables

Defined macros