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