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