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