diplodocus.org Git - nmh/blob - uip/packf.c

   1
   2 /*
   3  * packf.c -- pack a nmh folder into a file
   4  *
   5  * $Id$
   6  */
   7
   8 #include <h/mh.h>
   9 #include <fcntl.h>
  10 #include <h/dropsbr.h>
  11 #include <errno.h>
  12
  13 /*
  14  * We allocate space for messages (msgs array)
  15  * this number of elements at a time.
  16  */
  17 #define MAXMSGS  256
  18
  19
  20 static struct swit switches[] = {
  21 #define FILESW         0
  22     { "file name", 0 },
  23 #define MBOXSW         1
  24     { "mbox", 0 },
  25 #define MMDFSW         2
  26     { "mmdf", 0 },
  27 #define VERSIONSW      3
  28     { "version", 0 },
  29 #define HELPSW         4
  30     { "help", 0 },
  31     { NULL, 0 }
  32 };
  33
  34 extern int errno;
  35
  36 static int md = NOTOK;
  37 static int mbx_style = MBOX_FORMAT;
  38 static int mapping = 0;
  39
  40 char *file = NULL;
  41
  42
  43 int
  44 main (int argc, char **argv)
  45 {
  46     int nummsgs, maxmsgs, fd, msgnum;
  47     char *cp, *maildir, *msgnam, *folder = NULL, buf[BUFSIZ];
  48     char **argp, **arguments, **msgs;
  49     struct msgs *mp;
  50     struct stat st;
  51
  52 #ifdef LOCALE
  53     setlocale(LC_ALL, "");
  54 #endif
  55     invo_name = r1bindex (argv[0], '/');
  56
  57     /* read user profile/context */
  58     context_read();
  59
  60     arguments = getarguments (invo_name, argc, argv, 1);
  61     argp = arguments;
  62
  63     /* Allocate the initial space to record message
  64      * names and ranges.
  65      */
  66     nummsgs = 0;
  67     maxmsgs = MAXMSGS;
  68     if (!(msgs = (char **) malloc ((size_t) (maxmsgs * sizeof(*msgs)))))
  69         adios (NULL, "unable to allocate storage");
  70
  71     /*
  72      * Parse arguments
  73      */
  74     while ((cp = *argp++)) {
  75         if (*cp == '-') {
  76             switch (smatch (++cp, switches)) {
  77                 case AMBIGSW:
  78                     ambigsw (cp, switches);
  79                     done (1);
  80                 case UNKWNSW:
  81                     adios (NULL, "-%s unknown", cp);
  82
  83                 case HELPSW:
  84                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
  85                         invo_name);
  86                     print_help (buf, switches, 1);
  87                     done (1);
  88                 case VERSIONSW:
  89                     print_version(invo_name);
  90                     done (1);
  91
  92                 case FILESW:
  93                     if (file)
  94                         adios (NULL, "only one file at a time!");
  95                     if (!(file = *argp++) || *file == '-')
  96                         adios (NULL, "missing argument to %s", argp[-2]);
  97                     continue;
  98
  99                 case MBOXSW:
 100                     mbx_style = MBOX_FORMAT;
 101                     mapping = 0;
 102                     continue;
 103                 case MMDFSW:
 104                     mbx_style = MMDF_FORMAT;
 105                     mapping = 1;
 106                     continue;
 107             }
 108         }
 109         if (*cp == '+' || *cp == '@') {
 110             if (folder)
 111                 adios (NULL, "only one folder at a time!");
 112             folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
 113         } else {
 114             /*
 115              * Check if we need to allocate more space
 116              * for message name/ranges.
 117              */
 118             if (nummsgs >= maxmsgs) {
 119                 maxmsgs += MAXMSGS;
 120                 if (!(msgs = (char **) realloc (msgs,
 121                         (size_t) (maxmsgs * sizeof(*msgs)))))
 122                     adios (NULL, "unable to reallocate msgs storage");
 123             }
 124             msgs[nummsgs++] = cp;
 125         }
 126     }
 127
 128     if (!file)
 129         file = "./msgbox";
 130     file = path (file, TFILE);
 131
 132     /*
 133      * Check if file to be created (or appended to)
 134      * exists.  If not, ask for confirmation.
 135      */
 136     if (stat (file, &st) == NOTOK) {
 137         if (errno != ENOENT)
 138             adios (file, "error on file");
 139         cp = concat ("Create file \"", file, "\"? ", NULL);
 140         if (!getanswer (cp))
 141             done (1);
 142         free (cp);
 143     }
 144
 145     if (!context_find ("path"))
 146         free (path ("./", TFOLDER));
 147
 148     /* default is to pack whole folder */
 149     if (!nummsgs)
 150         msgs[nummsgs++] = "all";
 151
 152     if (!folder)
 153         folder = getfolder (1);
 154     maildir = m_maildir (folder);
 155
 156     if (chdir (maildir) == NOTOK)
 157         adios (maildir, "unable to change directory to ");
 158
 159     /* read folder and create message structure */
 160     if (!(mp = folder_read (folder)))
 161         adios (NULL, "unable to read folder %s", folder);
 162
 163     /* check for empty folder */
 164     if (mp->nummsg == 0)
 165         adios (NULL, "no messages in %s", folder);
 166
 167     /* parse all the message ranges/sequences and set SELECTED */
 168     for (msgnum = 0; msgnum < nummsgs; msgnum++)
 169         if (!m_convert (mp, msgs[msgnum]))
 170             done (1);
 171     seq_setprev (mp);   /* set the previous-sequence */
 172
 173     /* open and lock new maildrop file */
 174     if ((md = mbx_open(file, mbx_style, getuid(), getgid(), m_gmprot())) == NOTOK)
 175         adios (file, "unable to open");
 176
 177     /* copy all the SELECTED messages to the file */
 178     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 179         if (is_selected(mp, msgnum)) {
 180             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 181                 admonish (msgnam, "unable to read message");
 182                 break;
 183             }
 184
 185             if (mbx_copy (file, mbx_style, md, fd, mapping, NULL, 1) == NOTOK)
 186                 adios (file, "error writing to file");
 187
 188             close (fd);
 189         }
 190
 191     /* close and unlock maildrop file */
 192     mbx_close (file, md);
 193
 194     context_replace (pfolder, folder);  /* update current folder         */
 195     if (mp->hghsel != mp->curmsg)
 196         seq_setcur (mp, mp->lowsel);
 197     seq_save (mp);
 198     context_save ();                    /* save the context file         */
 199     folder_free (mp);                   /* free folder/message structure */
 200     return done (0);
 201 }
 202
 203 int
 204 done (int status)
 205 {
 206     mbx_close (file, md);
 207     exit (status);
 208     return 1;  /* dead code to satisfy the compiler */
 209 }