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

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