git.marmaro.de Git - mmh/blob - uip/rcvstore.c

   1 /*
   2 ** rcvstore.c -- asynchronously add mail to a folder
   3 **
   4 ** This code is Copyright (c) 2002, by the authors of nmh.  See the
   5 ** COPYRIGHT file in the root directory of the nmh distribution for
   6 ** complete copyright information.
   7 */
   8
   9 #include <h/mh.h>
  10 #include <h/utils.h>
  11 #include <fcntl.h>
  12 #include <h/signals.h>
  13 #include <errno.h>
  14 #include <signal.h>
  15 #include <unistd.h>
  16 #include <sys/stat.h>
  17 #include <locale.h>
  18 #include <sysexits.h>
  19
  20 static struct swit switches[] = {
  21 #define CRETSW  0
  22         { "create",   0 },
  23 #define NCRETSW  1
  24         { "nocreate", 2 },
  25 #define UNSEENSW  2
  26         { "unseen",   0 },
  27 #define NUNSEENSW  3
  28         { "nounseen", 2 },
  29 #define PUBSW  4
  30         { "public",   0 },
  31 #define NPUBSW  5
  32         { "nopublic", 2 },
  33 #define ZEROSW  6
  34         { "zero",     0 },
  35 #define NZEROSW  7
  36         { "nozero",   2 },
  37 #define SEQSW  8
  38         { "sequence name", 0 },
  39 #define VERSIONSW  9
  40         { "Version", 0 },
  41 #define HELPSW  10
  42         { "help", 0 },
  43         { NULL, 0 }
  44 };
  45
  46 char *version=VERSION;
  47
  48 /*
  49 ** name of temporary file to store incoming message
  50 */
  51 static char *tmpfilenam = NULL;
  52
  53 void unlink_done();
  54 static void fix_mbox(int out, char *ofile);
  55
  56 int
  57 main(int argc, char **argv)
  58 {
  59         int publicsw = -1, zerosw = 0;
  60         int create = 1, unseensw = 1;
  61         int fd, msgnum;
  62         size_t seqp = 0;
  63         char *cp, *maildir, *folder = NULL, buf[BUFSIZ];
  64         char **argp, **arguments, *seqs[NUMATTRS+1];
  65         struct msgs *mp;
  66         struct stat st;
  67
  68         if (atexit(unlink_done) != 0) {
  69                 adios(EX_OSERR, NULL, "atexit failed");
  70         }
  71
  72         setlocale(LC_ALL, "");
  73         invo_name = mhbasename(argv[0]);
  74
  75         /* read user profile/context */
  76         context_read();
  77
  78         arguments = getarguments(invo_name, argc, argv, 1);
  79         argp = arguments;
  80
  81         /* parse arguments */
  82         while ((cp = *argp++)) {
  83                 if (*cp == '-') {
  84                         switch (smatch(++cp, switches)) {
  85                         case AMBIGSW:
  86                                 ambigsw(cp, switches);
  87                                 exit(EX_USAGE);
  88                         case UNKWNSW:
  89                                 adios(EX_USAGE, NULL, "-%s unknown", cp);
  90
  91                         case HELPSW:
  92                                 snprintf(buf, sizeof(buf),
  93                                                 "%s [+folder] [switches]",
  94                                                 invo_name);
  95                                 print_help(buf, switches, 1);
  96                                 exit(argc == 2 ? EX_OK : EX_USAGE);
  97                         case VERSIONSW:
  98                                 print_version(invo_name);
  99                                 exit(argc == 2 ? EX_OK : EX_USAGE);
 100
 101                         case SEQSW:
 102                                 if (!(cp = *argp++) || *cp == '-')
 103                                         adios(EX_USAGE, NULL, "missing argument name to %s", argp[-2]);
 104
 105                                 /* check if too many sequences specified */
 106                                 if (seqp >= NUMATTRS)
 107                                         adios(EX_USAGE, NULL, "too many sequences (more than %d) specified", NUMATTRS);
 108                                 seqs[seqp++] = cp;
 109                                 continue;
 110
 111                         case UNSEENSW:
 112                                 unseensw = 1;
 113                                 continue;
 114                         case NUNSEENSW:
 115                                 unseensw = 0;
 116                                 continue;
 117
 118                         case PUBSW:
 119                                 publicsw = 1;
 120                                 continue;
 121                         case NPUBSW:
 122                                 publicsw = 0;
 123                                 continue;
 124
 125                         case ZEROSW:
 126                                 zerosw++;
 127                                 continue;
 128                         case NZEROSW:
 129                                 zerosw = 0;
 130                                 continue;
 131
 132                         case CRETSW:
 133                                 create++;
 134                                 continue;
 135                         case NCRETSW:
 136                                 create = 0;
 137                                 continue;
 138                         }
 139                 }
 140                 if (*cp == '+' || *cp == '@') {
 141                         if (folder)
 142                                 adios(EX_USAGE, NULL, "only one folder at a time!");
 143                         else
 144                                 folder = mh_xstrdup(expandfol(cp));
 145                 } else {
 146                         adios(EX_USAGE, NULL, "usage: %s [+folder] [switches]",
 147                                         invo_name);
 148                 }
 149         }
 150
 151         seqs[seqp] = NULL;  /* NULL terminate list of sequences */
 152
 153         /* if no folder is given, use default folder */
 154         if (!folder)
 155                 folder = getdeffol();
 156         maildir = toabsdir(folder);
 157
 158         /* check if folder exists */
 159         if (stat(maildir, &st) == NOTOK) {
 160                 if (errno != ENOENT)
 161                         adios(EX_IOERR, maildir, "error on folder");
 162                 if (!create)
 163                         adios(EX_USAGE, NULL, "folder %s doesn't exist", maildir);
 164                 if (!makedir(maildir))
 165                         adios(EX_CANTCREAT, NULL, "unable to create folder %s", maildir);
 166         }
 167
 168         if (chdir(maildir) == NOTOK)
 169                 adios(EX_OSERR, maildir, "unable to change directory to");
 170
 171         /* ignore a few signals */
 172         SIGNAL(SIGHUP, SIG_IGN);
 173         SIGNAL(SIGINT, SIG_IGN);
 174         SIGNAL(SIGQUIT, SIG_IGN);
 175         SIGNAL(SIGTERM, SIG_IGN);
 176
 177         /* create a temporary file */
 178         tmpfilenam = m_mktemp(invo_name, &fd, NULL);
 179         if (tmpfilenam == NULL) {
 180                 adios(EX_CANTCREAT, "rcvstore", "unable to create temporary file");
 181         }
 182         chmod(tmpfilenam, m_gmprot());
 183
 184         /* check if incoming mail is in mbox-format */
 185         fix_mbox(fd, tmpfilenam);
 186
 187         /* copy the message from stdin into temp file */
 188         cpydata(fileno(stdin), fd, "standard input", tmpfilenam);
 189
 190         if (fstat(fd, &st) == NOTOK) {
 191                 unlink(tmpfilenam);
 192                 adios(EX_IOERR, tmpfilenam, "unable to fstat");
 193         }
 194         if (close(fd) == NOTOK)
 195                 adios(EX_IOERR, tmpfilenam, "error closing");
 196
 197         /* don't add file if it is empty */
 198         if (st.st_size == 0) {
 199                 unlink(tmpfilenam);
 200                 advise(NULL, "empty file");
 201                 exit(EX_OK);
 202         }
 203
 204         /*
 205         ** read folder and create message structure
 206         */
 207         if (!(mp = folder_read(folder)))
 208                 adios(EX_IOERR, NULL, "unable to read folder %s", folder);
 209
 210         /*
 211         ** Link message into folder, and possibly add
 212         ** to the Unseen-Sequence's.
 213         */
 214         if ((msgnum = folder_addmsg(&mp, tmpfilenam, 0, unseensw, 0, 0, NULL))
 215                         == -1)
 216                 exit(EX_SOFTWARE);
 217
 218         /*
 219         ** Add the message to any extra sequences
 220         ** that have been specified.
 221         */
 222         for (seqp = 0; seqs[seqp]; seqp++) {
 223                 if (!seq_addmsg(mp, seqs[seqp], msgnum, publicsw, zerosw))
 224                         exit(EX_SOFTWARE);
 225         }
 226
 227         seq_setunseen(mp, 1);  /* add new msgs to unseen sequences */
 228         seq_save(mp);  /* synchronize and save message sequences */
 229         folder_free(mp);  /* free folder/message structure */
 230
 231         context_save();  /* save the global context file */
 232         unlink(tmpfilenam);  /* remove temporary file */
 233         tmpfilenam = NULL;
 234
 235         return EX_OK;
 236 }
 237
 238 static void
 239 fix_mbox(int out, char *outfile)
 240 {
 241         char mbox[5];
 242         int ret;
 243
 244         if ((ret = read(fileno(stdin), mbox, sizeof(mbox))) != sizeof(mbox)) {
 245                 if (ret == -1) {
 246                         adios(EX_IOERR, "standard input", "error reading");
 247                 }
 248                 return;
 249         }
 250
 251         if (strncmp(mbox, "From ", sizeof(mbox))==0) {
 252                 do {
 253                         if ((ret = read(fileno(stdin), mbox, 1)) != 1) {
 254                                 if (ret == -1) {
 255                                         adios(EX_IOERR, "standard input", "error reading");
 256                                 }
 257                                 return;
 258                         }
 259                 } while (*mbox != '\n');
 260         } else {
 261                 if (write(out, mbox, sizeof(mbox)) != sizeof(mbox)) {
 262                         adios(EX_IOERR, outfile, "error writing");
 263                 }
 264         }
 265 }
 266
 267 /*
 268 ** Clean up and exit
 269 */
 270 void
 271 unlink_done()
 272 {
 273         if (tmpfilenam && *tmpfilenam) {
 274                 unlink(tmpfilenam);
 275         }
 276 }