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