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  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <fcntl.h>
  14 #include <h/dropsbr.h>
  15 #include <h/utils.h>
  16 #include <errno.h>
  17
  18 /*
  19  * We allocate space for messages (msgs array)
  20  * this number of elements at a time.
  21  */
  22 #define MAXMSGS  256
  23
  24
  25 static struct swit switches[] = {
  26 #define FILESW         0
  27     { "file name", 0 },
  28 #define MBOXSW         1
  29     { "mbox", 0 },
  30 #define MMDFSW         2
  31     { "mmdf", 0 },
  32 #define VERSIONSW      3
  33     { "version", 0 },
  34 #define HELPSW         4
  35     { "help", 0 },
  36     { NULL, 0 }
  37 };
  38
  39 static int md = NOTOK;
  40 static int mbx_style = MBOX_FORMAT;
  41 static int mapping = 0;
  42
  43 char *file = NULL;
  44
  45
  46 int
  47 main (int argc, char **argv)
  48 {
  49     int nummsgs, maxmsgs, fd, msgnum;
  50     char *cp, *maildir, *msgnam, *folder = NULL, buf[BUFSIZ];
  51     char **argp, **arguments, **msgs;
  52     struct msgs *mp;
  53     struct stat st;
  54
  55 #ifdef LOCALE
  56     setlocale(LC_ALL, "");
  57 #endif
  58     invo_name = r1bindex (argv[0], '/');
  59
  60     /* read user profile/context */
  61     context_read();
  62
  63     arguments = getarguments (invo_name, argc, argv, 1);
  64     argp = arguments;
  65
  66     /* Allocate the initial space to record message
  67      * names and ranges.
  68      */
  69     nummsgs = 0;
  70     maxmsgs = MAXMSGS;
  71     msgs = (char **) mh_xmalloc ((size_t) (maxmsgs * sizeof(*msgs)));
  72
  73     /*
  74      * Parse arguments
  75      */
  76     while ((cp = *argp++)) {
  77         if (*cp == '-') {
  78             switch (smatch (++cp, switches)) {
  79                 case AMBIGSW:
  80                     ambigsw (cp, switches);
  81                     done (1);
  82                 case UNKWNSW:
  83                     adios (NULL, "-%s unknown", cp);
  84
  85                 case HELPSW:
  86                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
  87                         invo_name);
  88                     print_help (buf, switches, 1);
  89                     done (1);
  90                 case VERSIONSW:
  91                     print_version(invo_name);
  92                     done (1);
  93
  94                 case FILESW:
  95                     if (file)
  96                         adios (NULL, "only one file at a time!");
  97                     if (!(file = *argp++) || *file == '-')
  98                         adios (NULL, "missing argument to %s", argp[-2]);
  99                     continue;
 100
 101                 case MBOXSW:
 102                     mbx_style = MBOX_FORMAT;
 103                     mapping = 0;
 104                     continue;
 105                 case MMDFSW:
 106                     mbx_style = MMDF_FORMAT;
 107                     mapping = 1;
 108                     continue;
 109             }
 110         }
 111         if (*cp == '+' || *cp == '@') {
 112             if (folder)
 113                 adios (NULL, "only one folder at a time!");
 114             folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
 115         } else {
 116             /*
 117              * Check if we need to allocate more space
 118              * for message name/ranges.
 119              */
 120             if (nummsgs >= maxmsgs) {
 121                 maxmsgs += MAXMSGS;
 122                 msgs = (char **) mh_xrealloc (msgs,
 123                     (size_t) (maxmsgs * sizeof(*msgs)));
 124             }
 125             msgs[nummsgs++] = cp;
 126         }
 127     }
 128
 129     if (!file)
 130         file = "./msgbox";
 131     file = path (file, TFILE);
 132
 133     /*
 134      * Check if file to be created (or appended to)
 135      * exists.  If not, ask for confirmation.
 136      */
 137     if (stat (file, &st) == NOTOK) {
 138         if (errno != ENOENT)
 139             adios (file, "error on file");
 140         cp = concat ("Create file \"", file, "\"? ", NULL);
 141         if (!getanswer (cp))
 142             done (1);
 143         free (cp);
 144     }
 145
 146     if (!context_find ("path"))
 147         free (path ("./", TFOLDER));
 148
 149     /* default is to pack whole folder */
 150     if (!nummsgs)
 151         msgs[nummsgs++] = "all";
 152
 153     if (!folder)
 154         folder = getfolder (1);
 155     maildir = m_maildir (folder);
 156
 157     if (chdir (maildir) == NOTOK)
 158         adios (maildir, "unable to change directory to ");
 159
 160     /* read folder and create message structure */
 161     if (!(mp = folder_read (folder)))
 162         adios (NULL, "unable to read folder %s", folder);
 163
 164     /* check for empty folder */
 165     if (mp->nummsg == 0)
 166         adios (NULL, "no messages in %s", folder);
 167
 168     /* parse all the message ranges/sequences and set SELECTED */
 169     for (msgnum = 0; msgnum < nummsgs; msgnum++)
 170         if (!m_convert (mp, msgs[msgnum]))
 171             done (1);
 172     seq_setprev (mp);   /* set the previous-sequence */
 173
 174     /* open and lock new maildrop file */
 175     if ((md = mbx_open(file, mbx_style, getuid(), getgid(), m_gmprot())) == NOTOK)
 176         adios (file, "unable to open");
 177
 178     /* copy all the SELECTED messages to the file */
 179     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 180         if (is_selected(mp, msgnum)) {
 181             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 182                 admonish (msgnam, "unable to read message");
 183                 break;
 184             }
 185
 186             if (mbx_copy (file, mbx_style, md, fd, mapping, NULL, 1) == NOTOK)
 187                 adios (file, "error writing to file");
 188
 189             close (fd);
 190         }
 191
 192     /* close and unlock maildrop file */
 193     mbx_close (file, md);
 194
 195     context_replace (pfolder, folder);  /* update current folder         */
 196     if (mp->hghsel != mp->curmsg)
 197         seq_setcur (mp, mp->lowsel);
 198     seq_save (mp);
 199     context_save ();                    /* save the context file         */
 200     folder_free (mp);                   /* free folder/message structure */
 201     return done (0);
 202 }
 203
 204 int
 205 done (int status)
 206 {
 207     mbx_close (file, md);
 208     exit (status);
 209     return 1;  /* dead code to satisfy the compiler */
 210 }