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