diplodocus.org Git - nmh/blob - sbr/m_draft.c

   1
   2 /*
   3  * m_draft.c -- construct the name of a draft message
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <h/utils.h>
  12 #include <errno.h>
  13
  14
  15 char *
  16 m_draft (char *folder, char *msg, int use, int *isdf)
  17 {
  18     register char *cp;
  19     register struct msgs *mp;
  20     static char buffer[BUFSIZ];
  21
  22     if (*isdf == -1 || folder == NULL || *folder == '\0') {
  23         if (*isdf == -1 || (cp = context_find ("Draft-Folder")) == NULL) {
  24             *isdf = 0;
  25             return m_maildir (msg && *msg ? msg : draft);
  26         } else {
  27             folder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
  28                     *cp != '@' ? TFOLDER : TSUBCWF);
  29         }
  30     }
  31     *isdf = 1;
  32
  33     chdir (m_maildir (""));
  34     strncpy (buffer, m_maildir (folder), sizeof(buffer));
  35
  36     create_folder (buffer, 0, done);
  37
  38     if (chdir (buffer) == -1)
  39         adios (buffer, "unable to change directory to");
  40
  41     if (!(mp = folder_read (folder)))
  42         adios (NULL, "unable to read folder %s", folder);
  43
  44     /*
  45      * Make sure we have enough message status space for all
  46      * the message numbers from 1 to "new", since we might
  47      * select an empty slot.  If we add more space at the
  48      * end, go ahead and add 10 additional slots.
  49      */
  50     if (mp->hghmsg >= mp->hghoff) {
  51         if (!(mp = folder_realloc (mp, 1, mp->hghmsg + 10)))
  52             adios (NULL, "unable to allocate folder storage");
  53     } else if (mp->lowoff > 1) {
  54         if (!(mp = folder_realloc (mp, 1, mp->hghoff)))
  55             adios (NULL, "unable to allocate folder storage");
  56     }
  57
  58     mp->msgflags |= ALLOW_NEW;  /* allow the "new" sequence */
  59
  60     /*
  61      * If we have been give a valid message name, then use that.
  62      * Else, if we are given the "use" option, then use the
  63      * current message.  Else, use special sequence "new".
  64      */
  65     if (!m_convert (mp, msg && *msg ? msg : use ? "cur" : "new"))
  66         done (1);
  67     seq_setprev (mp);
  68
  69     if (mp->numsel > 1)
  70         adios (NULL, "only one message draft at a time!");
  71
  72     snprintf (buffer, sizeof(buffer), "%s/%s", mp->foldpath, m_name (mp->lowsel));
  73     cp = buffer;
  74
  75     seq_setcur (mp, mp->lowsel);/* set current message for folder */
  76     seq_save (mp);              /* synchronize message sequences  */
  77     folder_free (mp);           /* free folder/message structure  */
  78
  79     return cp;
  80 }