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