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