diplodocus.org Git - nmh/blob - uip/rcvstore.c

   1 /* rcvstore.c -- asynchronously add mail to a folder
   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/signals.h>
  11 #include <h/mts.h>
  12 #include <h/utils.h>
  13 #include "sbr/m_maildir.h"
  14 #include "sbr/m_mktemp.h"
  15 #include "sbr/makedir.h"
  16
  17 #define RCVSTORE_SWITCHES \
  18     X("create", 0, CRETSW) \
  19     X("nocreate", 0, NCRETSW) \
  20     X("unseen", 0, UNSEENSW) \
  21     X("nounseen", 0, NUNSEENSW) \
  22     X("public", 0, PUBSW) \
  23     X("nopublic", 0, NPUBSW) \
  24     X("zero", 0, ZEROSW) \
  25     X("nozero", 0, NZEROSW) \
  26     X("sequence name", 0, SEQSW) \
  27     X("version", 0, VERSIONSW) \
  28     X("help", 0, HELPSW) \
  29
  30 #define X(sw, minchars, id) id,
  31 DEFINE_SWITCH_ENUM(RCVSTORE);
  32 #undef X
  33
  34 #define X(sw, minchars, id) { sw, minchars, id },
  35 DEFINE_SWITCH_ARRAY(RCVSTORE, switches);
  36 #undef X
  37
  38
  39 /*
  40  * name of temporary file to store incoming message
  41  */
  42 static char *tmpfilenam = NULL;
  43
  44 static void unlink_done(int) NORETURN;
  45
  46 int
  47 main (int argc, char **argv)
  48 {
  49     int publicsw = -1, zerosw = 0;
  50     int create = 1, unseensw = 1;
  51     int fd, msgnum;
  52     size_t seqp = 0;
  53     char *cp, *maildir, *folder = NULL, buf[BUFSIZ];
  54     char **argp, **arguments;
  55     svector_t seqs = svector_create (0);
  56     struct msgs *mp;
  57     struct stat st;
  58
  59     if (nmh_init(argv[0], 2)) { return 1; }
  60
  61     done=unlink_done;
  62
  63     mts_init ();
  64     arguments = getarguments (invo_name, argc, argv, 1);
  65     argp = arguments;
  66
  67     /* parse arguments */
  68     while ((cp = *argp++)) {
  69         if (*cp == '-') {
  70             switch (smatch (++cp, switches)) {
  71             case AMBIGSW:
  72                 ambigsw (cp, switches);
  73                 done (1);
  74             case UNKWNSW:
  75                 adios (NULL, "-%s unknown", cp);
  76
  77             case HELPSW:
  78                 snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  79                           invo_name);
  80                 print_help (buf, switches, 1);
  81                 done (0);
  82             case VERSIONSW:
  83                 print_version(invo_name);
  84                 done (0);
  85
  86             case SEQSW:
  87                 if (!(cp = *argp++) || *cp == '-')
  88                     adios (NULL, "missing argument name to %s", argp[-2]);
  89
  90                 svector_push_back (seqs, cp);
  91                 seqp++;
  92                 continue;
  93
  94             case UNSEENSW:
  95                 unseensw = 1;
  96                 continue;
  97             case NUNSEENSW:
  98                 unseensw = 0;
  99                 continue;
 100
 101             case PUBSW:
 102                 publicsw = 1;
 103                 continue;
 104             case NPUBSW:
 105                 publicsw = 0;
 106                 continue;
 107
 108             case ZEROSW:
 109                 zerosw++;
 110                 continue;
 111             case NZEROSW:
 112                 zerosw = 0;
 113                 continue;
 114
 115             case CRETSW:
 116                 create++;
 117                 continue;
 118             case NCRETSW:
 119                 create = 0;
 120                 continue;
 121             }
 122         }
 123         if (*cp == '+' || *cp == '@') {
 124             if (folder)
 125                 adios (NULL, "only one folder at a time!");
 126             folder = pluspath (cp);
 127         } else {
 128             adios (NULL, "usage: %s [+folder] [switches]", invo_name);
 129         }
 130     }
 131
 132     if (!context_find ("path"))
 133         free (path ("./", TFOLDER));
 134
 135     /* if no folder is given, use default folder */
 136     if (!folder)
 137         folder = getfolder (0);
 138     maildir = m_maildir (folder);
 139
 140     /* check if folder exists */
 141     if (stat (maildir, &st) == NOTOK) {
 142         if (errno != ENOENT)
 143             adios (maildir, "error on folder");
 144         if (!create)
 145             adios (NULL, "folder %s doesn't exist", maildir);
 146         if (!makedir (maildir))
 147             adios (NULL, "unable to create folder %s", maildir);
 148     }
 149
 150     if (chdir (maildir) == NOTOK)
 151         adios (maildir, "unable to change directory to");
 152
 153     /* ignore a few signals */
 154     SIGNAL (SIGHUP, SIG_IGN);
 155     SIGNAL (SIGINT, SIG_IGN);
 156     SIGNAL (SIGQUIT, SIG_IGN);
 157     SIGNAL (SIGTERM, SIG_IGN);
 158
 159     /* create a temporary file */
 160     tmpfilenam = m_mktemp (invo_name, &fd, NULL);
 161     if (tmpfilenam == NULL) {
 162         adios(NULL, "unable to create temporary file in %s", get_temp_dir());
 163     }
 164     chmod (tmpfilenam, m_gmprot());
 165
 166     /* copy the message from stdin into temp file */
 167     cpydata (fileno (stdin), fd, "standard input", tmpfilenam);
 168
 169     if (fstat (fd, &st) == NOTOK) {
 170         (void) m_unlink (tmpfilenam);
 171         adios (tmpfilenam, "unable to fstat");
 172     }
 173     if (close (fd) == NOTOK)
 174         adios (tmpfilenam, "error closing");
 175
 176     /* don't add file if it is empty */
 177     if (st.st_size == 0) {
 178         (void) m_unlink (tmpfilenam);
 179         inform("empty file");
 180         done (0);
 181     }
 182
 183     /*
 184      * read folder and create message structure
 185      */
 186     if (!(mp = folder_read (folder, 1)))
 187         adios (NULL, "unable to read folder %s", folder);
 188
 189     /*
 190      * Link message into folder, and possibly add
 191      * to the Unseen-Sequence's.
 192      */
 193     if ((msgnum = folder_addmsg (&mp, tmpfilenam, 0, unseensw, 0, 0, NULL)) == -1)
 194         done (1);
 195
 196     /*
 197      * Add the message to any extra sequences
 198      * that have been specified.
 199      */
 200     if (seqp) {
 201         /* The only reason that seqp was checked to be non-zero is in
 202            case a -nosequence switch is added. */
 203         for (seqp = 0; seqp < svector_size (seqs); seqp++) {
 204             if (!seq_addmsg (mp, svector_at (seqs, seqp), msgnum, publicsw,
 205                              zerosw))
 206                 done (1);
 207         }
 208     }
 209
 210     svector_free (seqs);
 211     seq_setunseen (mp, 0);      /* synchronize any Unseen-Sequence's      */
 212     seq_save (mp);              /* synchronize and save message sequences */
 213     folder_free (mp);           /* free folder/message structure          */
 214
 215     context_save ();            /* save the global context file           */
 216     (void) m_unlink (tmpfilenam); /* remove temporary file                  */
 217     tmpfilenam = NULL;
 218
 219     done (0);
 220     return 1;
 221 }
 222
 223 /*
 224  * Clean up and exit
 225  */
 226 static void NORETURN
 227 unlink_done(int status)
 228 {
 229     if (tmpfilenam && *tmpfilenam)
 230         (void) m_unlink (tmpfilenam);
 231     exit (status);
 232 }