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/signals.h>
  12
  13 #ifndef CYRUS_SASL
  14 # define SASLminc(a) (a)
  15 #else /* CYRUS_SASL */
  16 # define SASLminc(a)  0
  17 #endif /* CYRUS_SASL */
  18
  19 #ifndef TLS_SUPPORT
  20 # define TLSminc(a)  (a)
  21 #else /* TLS_SUPPORT */
  22 # define TLSminc(a)   0
  23 #endif /* TLS_SUPPORT */
  24
  25 #define WHOM_SWITCHES \
  26     X("alias aliasfile", 0, ALIASW) \
  27     X("check", 0, CHKSW) \
  28     X("nocheck", 0, NOCHKSW) \
  29     X("draft", 0, DRAFTSW) \
  30     X("draftfolder +folder", 6, DFOLDSW) \
  31     X("draftmessage msg", 6, DMSGSW) \
  32     X("nodraftfolder", 0, NDFLDSW) \
  33     X("version", 0, VERSIONSW) \
  34     X("help", 0, HELPSW) \
  35     X("client host", -6, CLIESW) \
  36     X("server host", -6, SERVSW) \
  37     X("snoop", -5, SNOOPSW) \
  38     X("sasl", SASLminc(4), SASLSW) \
  39     X("saslmech mechanism", SASLminc(-5), SASLMECHSW) \
  40     X("user username", SASLminc(-4), USERSW) \
  41     X("port server port name/number", 4, PORTSW) \
  42     X("tls", TLSminc(-3), TLSSW) \
  43     X("initialtls", TLSminc(-10), INITTLSSW) \
  44     X("notls", TLSminc(-5), NTLSSW) \
  45     X("mts smtp|sendmail/smtp|sendmail/pipe", 0, MTSSW) \
  46
  47 #define X(sw, minchars, id) id,
  48 DEFINE_SWITCH_ENUM(WHOM);
  49 #undef X
  50
  51 #define X(sw, minchars, id) { sw, minchars, id },
  52 DEFINE_SWITCH_ARRAY(WHOM, switches);
  53 #undef X
  54
  55
  56 int
  57 main (int argc, char **argv)
  58 {
  59     pid_t child_id = OK;
  60     int i, status, isdf = 0;
  61     int distsw = 0, vecp = 0;
  62     char *cp, *dfolder = NULL, *dmsg = NULL;
  63     char *msg = NULL, **ap, **argp, backup[BUFSIZ];
  64     char buf[BUFSIZ], **arguments, *vec[MAXARGS];
  65
  66 #ifdef LOCALE
  67     setlocale(LC_ALL, "");
  68 #endif
  69     invo_name = r1bindex (argv[0], '/');
  70
  71     /* read user profile/context */
  72     context_read();
  73
  74     arguments = getarguments (invo_name, argc, argv, 1);
  75     argp = arguments;
  76
  77     vec[vecp++] = invo_name;
  78     vec[vecp++] = "-whom";
  79     vec[vecp++] = "-library";
  80     vec[vecp++] = getcpy (m_maildir (""));
  81
  82     /* Don't need to feed fileproc or mhlproc to post because
  83        it doesn't use them when used for whom. */
  84
  85     while ((cp = *argp++)) {
  86         if (*cp == '-') {
  87             switch (smatch (++cp, switches)) {
  88                 case AMBIGSW:
  89                     ambigsw (cp, switches);
  90                     done (1);
  91                 case UNKWNSW:
  92                     adios (NULL, "-%s unknown", cp);
  93
  94                 case HELPSW:
  95                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
  96                     print_help (buf, switches, 1);
  97                     done (0);
  98                 case VERSIONSW:
  99                     print_version(invo_name);
 100                     done (0);
 101
 102                 case CHKSW:
 103                 case NOCHKSW:
 104                 case SNOOPSW:
 105                 case SASLSW:
 106                 case TLSSW:
 107                 case INITTLSSW:
 108                 case NTLSSW:
 109                     vec[vecp++] = --cp;
 110                     continue;
 111
 112                 case DRAFTSW:
 113                     msg = draft;
 114                     continue;
 115
 116                 case DFOLDSW:
 117                     if (dfolder)
 118                         adios (NULL, "only one draft folder at a time!");
 119                     if (!(cp = *argp++) || *cp == '-')
 120                         adios (NULL, "missing argument to %s", argp[-2]);
 121                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 122                             *cp != '@' ? TFOLDER : TSUBCWF);
 123                     continue;
 124                 case DMSGSW:
 125                     if (dmsg)
 126                         adios (NULL, "only one draft message at a time!");
 127                     if (!(dmsg = *argp++) || *dmsg == '-')
 128                         adios (NULL, "missing argument to %s", argp[-2]);
 129                     continue;
 130                 case NDFLDSW:
 131                     dfolder = NULL;
 132                     isdf = NOTOK;
 133                     continue;
 134
 135                 case ALIASW:
 136                 case CLIESW:
 137                 case SERVSW:
 138                 case USERSW:
 139                 case PORTSW:
 140                 case SASLMECHSW:
 141                 case MTSSW:
 142                     vec[vecp++] = --cp;
 143                     if (!(cp = *argp++) || *cp == '-')
 144                         adios (NULL, "missing argument to %s", argp[-2]);
 145                     vec[vecp++] = cp;
 146                     continue;
 147             }
 148         }
 149         if (msg)
 150             adios (NULL, "only one draft at a time!");
 151         else
 152             vec[vecp++] = msg = cp;
 153     }
 154
 155     /* allow Aliasfile: profile entry */
 156     if ((cp = context_find ("Aliasfile"))) {
 157         char *dp = NULL;
 158
 159         for (ap = brkstring(dp = getcpy(cp), " ", "\n"); ap && *ap; ap++) {
 160             vec[vecp++] = "-alias";
 161             vec[vecp++] = *ap;
 162         }
 163     }
 164
 165     if (msg == NULL) {
 166 #ifdef  WHATNOW
 167         if (dfolder || (cp = getenv ("mhdraft")) == NULL || *cp == '\0')
 168 #endif  /* WHATNOW */
 169             cp  = getcpy (m_draft (dfolder, dmsg, 1, &isdf));
 170         msg = vec[vecp++] = cp;
 171     }
 172     if ((cp = getenv ("mhdist"))
 173             && *cp
 174             && (distsw = atoi (cp))
 175             && (cp = getenv ("mhaltmsg"))
 176             && *cp) {
 177         if (distout (msg, cp, backup) == NOTOK)
 178             done (1);
 179         vec[vecp++] = "-dist";
 180         distsw++;
 181     }
 182     vec[vecp] = NULL;
 183
 184     closefds (3);
 185
 186     if (distsw) {
 187         for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
 188             sleep (5);
 189     }
 190
 191     switch (distsw ? child_id : OK) {
 192         case NOTOK:
 193             advise (NULL, "unable to fork, so checking directly...");
 194         case OK:
 195             execvp (postproc, vec);
 196             fprintf (stderr, "unable to exec ");
 197             perror (postproc);
 198             _exit (-1);
 199
 200         default:
 201             SIGNAL (SIGHUP, SIG_IGN);
 202             SIGNAL (SIGINT, SIG_IGN);
 203             SIGNAL (SIGQUIT, SIG_IGN);
 204             SIGNAL (SIGTERM, SIG_IGN);
 205
 206             status = pidwait(child_id, OK);
 207
 208             unlink (msg);
 209             if (rename (backup, msg) == NOTOK)
 210                 adios (msg, "unable to rename %s to", backup);
 211             done (status);
 212     }
 213
 214     return 0;  /* dead code to satisfy the compiler */
 215 }