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