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

   1 /* packf.c -- pack a nmh folder into a file
   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 <fcntl.h>
  10 #include <h/dropsbr.h>
  11 #include <h/utils.h>
  12
  13 #define PACKF_SWITCHES \
  14     X("file name", 0, FILESW) \
  15     X("mbox", 0, MBOXSW) \
  16     X("mmdf", 0, MMDFSW) \
  17     X("version", 0, VERSIONSW) \
  18     X("help", 0, HELPSW) \
  19
  20 #define X(sw, minchars, id) id,
  21 DEFINE_SWITCH_ENUM(PACKF);
  22 #undef X
  23
  24 #define X(sw, minchars, id) { sw, minchars, id },
  25 DEFINE_SWITCH_ARRAY(PACKF, switches);
  26 #undef X
  27
  28 static int md = NOTOK;
  29 static int mbx_style = MBOX_FORMAT;
  30 static int mapping = 0;
  31
  32 static void mbxclose_done(int) NORETURN;
  33
  34 char *file = NULL;
  35
  36
  37 int
  38 main (int argc, char **argv)
  39 {
  40     int fd, msgnum;
  41     char *cp, *maildir, *msgnam, *folder = NULL, buf[BUFSIZ];
  42     char **argp, **arguments;
  43     struct msgs_array msgs = { 0, 0, NULL };
  44     struct msgs *mp;
  45     struct stat st;
  46
  47     if (nmh_init(argv[0], 1)) { return 1; }
  48
  49     done=mbxclose_done;
  50
  51     arguments = getarguments (invo_name, argc, argv, 1);
  52     argp = arguments;
  53
  54     /*
  55      * Parse arguments
  56      */
  57     while ((cp = *argp++)) {
  58         if (*cp == '-') {
  59             switch (smatch (++cp, switches)) {
  60                 case AMBIGSW:
  61                     ambigsw (cp, switches);
  62                     done (1);
  63                 case UNKWNSW:
  64                     adios (NULL, "-%s unknown", cp);
  65
  66                 case HELPSW:
  67                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
  68                         invo_name);
  69                     print_help (buf, switches, 1);
  70                     done (0);
  71                 case VERSIONSW:
  72                     print_version(invo_name);
  73                     done (0);
  74
  75                 case FILESW:
  76                     if (file)
  77                         adios (NULL, "only one file at a time!");
  78                     if (!(file = *argp++) || *file == '-')
  79                         adios (NULL, "missing argument to %s", argp[-2]);
  80                     continue;
  81
  82                 case MBOXSW:
  83                     mbx_style = MBOX_FORMAT;
  84                     mapping = 0;
  85                     continue;
  86                 case MMDFSW:
  87                     mbx_style = MMDF_FORMAT;
  88                     mapping = 1;
  89                     continue;
  90             }
  91         }
  92         if (*cp == '+' || *cp == '@') {
  93             if (folder)
  94                 adios (NULL, "only one folder at a time!");
  95             folder = pluspath (cp);
  96         } else
  97                 app_msgarg(&msgs, cp);
  98     }
  99
 100     if (!file)
 101         file = "./msgbox";
 102     file = path (file, TFILE);
 103
 104     /*
 105      * Check if file to be created (or appended to)
 106      * exists.  If not, ask for confirmation.
 107      */
 108     if (stat (file, &st) == NOTOK) {
 109         if (errno != ENOENT)
 110             adios (file, "error on file");
 111         cp = concat ("Create file \"", file, "\"? ", NULL);
 112         if (!read_yes_or_no_if_tty (cp))
 113             done (1);
 114         free (cp);
 115     }
 116
 117     if (!context_find ("path"))
 118         free (path ("./", TFOLDER));
 119
 120     /* default is to pack whole folder */
 121     if (!msgs.size)
 122         app_msgarg(&msgs, "all");
 123
 124     if (!folder)
 125         folder = getfolder (1);
 126     maildir = m_maildir (folder);
 127
 128     if (chdir (maildir) == NOTOK)
 129         adios (maildir, "unable to change directory to ");
 130
 131     /* read folder and create message structure */
 132     if (!(mp = folder_read (folder, 1)))
 133         adios (NULL, "unable to read folder %s", folder);
 134
 135     /* check for empty folder */
 136     if (mp->nummsg == 0)
 137         adios (NULL, "no messages in %s", folder);
 138
 139     /* parse all the message ranges/sequences and set SELECTED */
 140     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 141         if (!m_convert (mp, msgs.msgs[msgnum]))
 142             done (1);
 143     seq_setprev (mp);   /* set the previous-sequence */
 144
 145     /* open and lock new maildrop file */
 146     if ((md = mbx_open(file, mbx_style, getuid(), getgid(), m_gmprot())) == NOTOK)
 147         adios (file, "unable to open");
 148
 149     /* copy all the SELECTED messages to the file */
 150     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 151         if (is_selected(mp, msgnum)) {
 152             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 153                 admonish (msgnam, "unable to read message");
 154                 break;
 155             }
 156
 157             if (mbx_copy (file, mbx_style, md, fd, mapping, NULL, 1) == NOTOK)
 158                 adios (file, "error writing to file");
 159
 160             close (fd);
 161         }
 162
 163     /* close and unlock maildrop file */
 164     mbx_close (file, md);
 165
 166     context_replace (pfolder, folder);  /* update current folder         */
 167     if (mp->hghsel != mp->curmsg)
 168         seq_setcur (mp, mp->lowsel);
 169     seq_save (mp);
 170     context_save ();                    /* save the context file         */
 171     folder_free (mp);                   /* free folder/message structure */
 172     done (0);
 173     return 1;
 174 }
 175
 176 static void
 177 mbxclose_done (int status)
 178 {
 179     mbx_close (file, md);
 180     exit (status);
 181 }