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