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