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

   1
   2 /*
   3  * whom.c -- report to whom a message would be sent
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <h/utils.h>
  12 #include <h/signals.h>
  13
  14 #ifndef CYRUS_SASL
  15 # define SASLminc(a) (a)
  16 #else /* CYRUS_SASL */
  17 # define SASLminc(a)  0
  18 #endif /* CYRUS_SASL */
  19
  20 #ifndef TLS_SUPPORT
  21 # define TLSminc(a)  (a)
  22 #else /* TLS_SUPPORT */
  23 # define TLSminc(a)   0
  24 #endif /* TLS_SUPPORT */
  25
  26 #define WHOM_SWITCHES \
  27     X("alias aliasfile", 0, ALIASW) \
  28     X("check", 0, CHKSW) \
  29     X("nocheck", 0, NOCHKSW) \
  30     X("draft", 0, DRAFTSW) \
  31     X("draftfolder +folder", 6, DFOLDSW) \
  32     X("draftmessage msg", 6, DMSGSW) \
  33     X("nodraftfolder", 0, NDFLDSW) \
  34     X("version", 0, VERSIONSW) \
  35     X("help", 0, HELPSW) \
  36     X("client host", -6, CLIESW) \
  37     X("server host", 0, SERVSW) \
  38     X("snoop", 0, SNOOPSW) \
  39     X("sasl", SASLminc(4), SASLSW) \
  40     X("saslmech mechanism", SASLminc(-5), SASLMECHSW) \
  41     X("user username", SASLminc(-4), USERSW) \
  42     X("port server port name/number", 4, PORTSW) \
  43     X("tls", TLSminc(-3), TLSSW) \
  44     X("initialtls", TLSminc(-10), INITTLSSW) \
  45     X("notls", TLSminc(-5), NTLSSW) \
  46     X("mts smtp|sendmail/smtp|sendmail/pipe", 0, MTSSW) \
  47
  48 #define X(sw, minchars, id) id,
  49 DEFINE_SWITCH_ENUM(WHOM);
  50 #undef X
  51
  52 #define X(sw, minchars, id) { sw, minchars, id },
  53 DEFINE_SWITCH_ARRAY(WHOM, switches);
  54 #undef X
  55
  56
  57 int
  58 main (int argc, char **argv)
  59 {
  60     pid_t child_id = OK;
  61     int i, status, isdf = 0;
  62     int distsw = 0, vecp = 0;
  63     char *cp, *dfolder = NULL, *dmsg = NULL;
  64     char *msg = NULL, **ap, **argp, backup[BUFSIZ];
  65     char buf[BUFSIZ], **arguments, *vec[MAXARGS];
  66
  67     if (nmh_init(argv[0], 2)) { return 1; }
  68
  69     arguments = getarguments (invo_name, argc, argv, 1);
  70     argp = arguments;
  71
  72     vec[vecp++] = invo_name;
  73     vec[vecp++] = "-whom";
  74     vec[vecp++] = "-library";
  75     vec[vecp++] = getcpy (m_maildir (""));
  76
  77     /* Don't need to feed fileproc or mhlproc to post because
  78        it doesn't use them when used for whom. */
  79
  80     while ((cp = *argp++)) {
  81         if (*cp == '-') {
  82             switch (smatch (++cp, switches)) {
  83                 case AMBIGSW:
  84                     ambigsw (cp, switches);
  85                     done (1);
  86                 case UNKWNSW:
  87                     adios (NULL, "-%s unknown", cp);
  88
  89                 case HELPSW:
  90                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
  91                     print_help (buf, switches, 1);
  92                     done (0);
  93                 case VERSIONSW:
  94                     print_version(invo_name);
  95                     done (0);
  96
  97                 case CHKSW:
  98                 case NOCHKSW:
  99                 case SNOOPSW:
 100                 case SASLSW:
 101                 case TLSSW:
 102                 case INITTLSSW:
 103                 case NTLSSW:
 104                     vec[vecp++] = --cp;
 105                     continue;
 106
 107                 case DRAFTSW:
 108                     msg = draft;
 109                     continue;
 110
 111                 case DFOLDSW:
 112                     if (dfolder)
 113                         adios (NULL, "only one draft folder at a time!");
 114                     if (!(cp = *argp++) || *cp == '-')
 115                         adios (NULL, "missing argument to %s", argp[-2]);
 116                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 117                             *cp != '@' ? TFOLDER : TSUBCWF);
 118                     continue;
 119                 case DMSGSW:
 120                     if (dmsg)
 121                         adios (NULL, "only one draft message at a time!");
 122                     if (!(dmsg = *argp++) || *dmsg == '-')
 123                         adios (NULL, "missing argument to %s", argp[-2]);
 124                     continue;
 125                 case NDFLDSW:
 126                     dfolder = NULL;
 127                     isdf = NOTOK;
 128                     continue;
 129
 130                 case ALIASW:
 131                 case CLIESW:
 132                 case SERVSW:
 133                 case USERSW:
 134                 case PORTSW:
 135                 case SASLMECHSW:
 136                 case MTSSW:
 137                     vec[vecp++] = --cp;
 138                     if (!(cp = *argp++) || *cp == '-')
 139                         adios (NULL, "missing argument to %s", argp[-2]);
 140                     vec[vecp++] = cp;
 141                     continue;
 142             }
 143         }
 144         if (msg)
 145             adios (NULL, "only one draft at a time!");
 146         else
 147             vec[vecp++] = msg = cp;
 148     }
 149
 150     /* allow Aliasfile: profile entry */
 151     if ((cp = context_find ("Aliasfile"))) {
 152         char *dp = NULL;
 153
 154         for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++) {
 155             vec[vecp++] = "-alias";
 156             vec[vecp++] = *ap;
 157         }
 158     }
 159
 160     if (msg == NULL) {
 161             cp  = getcpy (m_draft (dfolder, dmsg, 1, &isdf));
 162         msg = vec[vecp++] = cp;
 163     }
 164     if ((cp = getenv ("mhdist"))
 165             && *cp
 166             && (distsw = atoi (cp))
 167             && (cp = getenv ("mhaltmsg"))
 168             && *cp) {
 169         if (distout (msg, cp, backup) == NOTOK)
 170             done (1);
 171         vec[vecp++] = "-dist";
 172         distsw++;
 173     }
 174     vec[vecp] = NULL;
 175
 176     closefds (3);
 177
 178     if (distsw) {
 179         for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
 180             sleep (5);
 181     }
 182
 183     switch (distsw ? child_id : OK) {
 184         case NOTOK:
 185             advise (NULL, "unable to fork, so checking directly...");
 186             /* FALLTHRU */
 187         case OK:
 188             execvp (postproc, vec);
 189             fprintf (stderr, "unable to exec ");
 190             perror (postproc);
 191             _exit (-1);
 192
 193         default:
 194             SIGNAL (SIGHUP, SIG_IGN);
 195             SIGNAL (SIGINT, SIG_IGN);
 196             SIGNAL (SIGQUIT, SIG_IGN);
 197             SIGNAL (SIGTERM, SIG_IGN);
 198
 199             status = pidwait(child_id, OK);
 200
 201             (void) m_unlink (msg);
 202             if (rename (backup, msg) == NOTOK)
 203                 adios (msg, "unable to rename %s to", backup);
 204             done (status);
 205     }
 206
 207     return 0;  /* dead code to satisfy the compiler */
 208 }