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 #include "../sbr/m_maildir.h"
  13
  14 #define PACKF_SWITCHES \
  15     X("file name", 0, FILESW) \
  16     X("mbox", 0, MBOXSW) \
  17     X("mmdf", 0, MMDFSW) \
  18     X("version", 0, VERSIONSW) \
  19     X("help", 0, HELPSW) \
  20
  21 #define X(sw, minchars, id) id,
  22 DEFINE_SWITCH_ENUM(PACKF);
  23 #undef X
  24
  25 #define X(sw, minchars, id) { sw, minchars, id },
  26 DEFINE_SWITCH_ARRAY(PACKF, switches);
  27 #undef X
  28
  29 static int md = NOTOK;
  30 static int mbx_style = MBOX_FORMAT;
  31 static int mapping = 0;
  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], 1)) { return 1; }
  49
  50     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                     adios (NULL, "-%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                         adios (NULL, "only one file at a time!");
  79                     if (!(file = *argp++) || *file == '-')
  80                         adios (NULL, "missing argument to %s", argp[-2]);
  81                     continue;
  82
  83                 case MBOXSW:
  84                     mbx_style = MBOX_FORMAT;
  85                     mapping = 0;
  86                     continue;
  87                 case MMDFSW:
  88                     mbx_style = MMDF_FORMAT;
  89                     mapping = 1;
  90                     continue;
  91             }
  92         }
  93         if (*cp == '+' || *cp == '@') {
  94             if (folder)
  95                 adios (NULL, "only one folder at a time!");
  96             folder = pluspath (cp);
  97         } else
  98                 app_msgarg(&msgs, cp);
  99     }
 100
 101     if (!file)
 102         file = "./msgbox";
 103     file = path (file, TFILE);
 104
 105     /*
 106      * Check if file to be created (or appended to)
 107      * exists.  If not, ask for confirmation.
 108      */
 109     if (stat (file, &st) == NOTOK) {
 110         if (errno != ENOENT)
 111             adios (file, "error on file");
 112         cp = concat ("Create file \"", file, "\"? ", NULL);
 113         if (!read_yes_or_no_if_tty (cp))
 114             done (1);
 115         free (cp);
 116     }
 117
 118     if (!context_find ("path"))
 119         free (path ("./", TFOLDER));
 120
 121     /* default is to pack whole folder */
 122     if (!msgs.size)
 123         app_msgarg(&msgs, "all");
 124
 125     if (!folder)
 126         folder = getfolder (1);
 127     maildir = m_maildir (folder);
 128
 129     if (chdir (maildir) == NOTOK)
 130         adios (maildir, "unable to change directory to ");
 131
 132     /* read folder and create message structure */
 133     if (!(mp = folder_read (folder, 1)))
 134         adios (NULL, "unable to read folder %s", folder);
 135
 136     /* check for empty folder */
 137     if (mp->nummsg == 0)
 138         adios (NULL, "no messages in %s", folder);
 139
 140     /* parse all the message ranges/sequences and set SELECTED */
 141     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 142         if (!m_convert (mp, msgs.msgs[msgnum]))
 143             done (1);
 144     seq_setprev (mp);   /* set the previous-sequence */
 145
 146     /* open and lock new maildrop file */
 147     if ((md = mbx_open(file, mbx_style, getuid(), getgid(), m_gmprot())) == NOTOK)
 148         adios (file, "unable to open");
 149
 150     /* copy all the SELECTED messages to the file */
 151     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 152         if (is_selected(mp, msgnum)) {
 153             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 154                 admonish (msgnam, "unable to read message");
 155                 break;
 156             }
 157
 158             if (mbx_copy (file, mbx_style, md, fd, mapping, NULL, 1) == NOTOK)
 159                 adios (file, "error writing to file");
 160
 161             close (fd);
 162         }
 163
 164     /* close and unlock maildrop file */
 165     mbx_close (file, md);
 166
 167     context_replace (pfolder, folder);  /* update current folder         */
 168     if (mp->hghsel != mp->curmsg)
 169         seq_setcur (mp, mp->lowsel);
 170     seq_save (mp);
 171     context_save ();                    /* save the context file         */
 172     folder_free (mp);                   /* free folder/message structure */
 173     done (0);
 174     return 1;
 175 }
 176
 177 static void NORETURN
 178 mbxclose_done (int status)
 179 {
 180     mbx_close (file, md);
 181     exit (status);
 182 }