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