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