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     setlocale(LC_ALL, "");
  67     invo_name = r1bindex (argv[0], '/');
  68
  69     /* read user profile/context */
  70     context_read();
  71
  72     arguments = getarguments (invo_name, argc, argv, 1);
  73     argp = arguments;
  74
  75     vec[vecp++] = invo_name;
  76     vec[vecp++] = "-whom";
  77     vec[vecp++] = "-library";
  78     vec[vecp++] = getcpy (m_maildir (""));
  79
  80     /* Don't need to feed fileproc or mhlproc to post because
  81        it doesn't use them when used for whom. */
  82
  83     while ((cp = *argp++)) {
  84         if (*cp == '-') {
  85             switch (smatch (++cp, switches)) {
  86                 case AMBIGSW:
  87                     ambigsw (cp, switches);
  88                     done (1);
  89                 case UNKWNSW:
  90                     adios (NULL, "-%s unknown", cp);
  91
  92                 case HELPSW:
  93                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
  94                     print_help (buf, switches, 1);
  95                     done (0);
  96                 case VERSIONSW:
  97                     print_version(invo_name);
  98                     done (0);
  99
 100                 case CHKSW:
 101                 case NOCHKSW:
 102                 case SNOOPSW:
 103                 case SASLSW:
 104                 case TLSSW:
 105                 case INITTLSSW:
 106                 case NTLSSW:
 107                     vec[vecp++] = --cp;
 108                     continue;
 109
 110                 case DRAFTSW:
 111                     msg = draft;
 112                     continue;
 113
 114                 case DFOLDSW:
 115                     if (dfolder)
 116                         adios (NULL, "only one draft folder at a time!");
 117                     if (!(cp = *argp++) || *cp == '-')
 118                         adios (NULL, "missing argument to %s", argp[-2]);
 119                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 120                             *cp != '@' ? TFOLDER : TSUBCWF);
 121                     continue;
 122                 case DMSGSW:
 123                     if (dmsg)
 124                         adios (NULL, "only one draft message at a time!");
 125                     if (!(dmsg = *argp++) || *dmsg == '-')
 126                         adios (NULL, "missing argument to %s", argp[-2]);
 127                     continue;
 128                 case NDFLDSW:
 129                     dfolder = NULL;
 130                     isdf = NOTOK;
 131                     continue;
 132
 133                 case ALIASW:
 134                 case CLIESW:
 135                 case SERVSW:
 136                 case USERSW:
 137                 case PORTSW:
 138                 case SASLMECHSW:
 139                 case MTSSW:
 140                     vec[vecp++] = --cp;
 141                     if (!(cp = *argp++) || *cp == '-')
 142                         adios (NULL, "missing argument to %s", argp[-2]);
 143                     vec[vecp++] = cp;
 144                     continue;
 145             }
 146         }
 147         if (msg)
 148             adios (NULL, "only one draft at a time!");
 149         else
 150             vec[vecp++] = msg = cp;
 151     }
 152
 153     /* allow Aliasfile: profile entry */
 154     if ((cp = context_find ("Aliasfile"))) {
 155         char *dp = NULL;
 156
 157         for (ap = brkstring(dp = getcpy(cp), " ", "\n"); ap && *ap; ap++) {
 158             vec[vecp++] = "-alias";
 159             vec[vecp++] = *ap;
 160         }
 161     }
 162
 163     if (msg == NULL) {
 164             cp  = getcpy (m_draft (dfolder, dmsg, 1, &isdf));
 165         msg = vec[vecp++] = cp;
 166     }
 167     if ((cp = getenv ("mhdist"))
 168             && *cp
 169             && (distsw = atoi (cp))
 170             && (cp = getenv ("mhaltmsg"))
 171             && *cp) {
 172         if (distout (msg, cp, backup) == NOTOK)
 173             done (1);
 174         vec[vecp++] = "-dist";
 175         distsw++;
 176     }
 177     vec[vecp] = NULL;
 178
 179     closefds (3);
 180
 181     if (distsw) {
 182         for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
 183             sleep (5);
 184     }
 185
 186     switch (distsw ? child_id : OK) {
 187         case NOTOK:
 188             advise (NULL, "unable to fork, so checking directly...");
 189         case OK:
 190             execvp (postproc, vec);
 191             fprintf (stderr, "unable to exec ");
 192             perror (postproc);
 193             _exit (-1);
 194
 195         default:
 196             SIGNAL (SIGHUP, SIG_IGN);
 197             SIGNAL (SIGINT, SIG_IGN);
 198             SIGNAL (SIGQUIT, SIG_IGN);
 199             SIGNAL (SIGTERM, SIG_IGN);
 200
 201             status = pidwait(child_id, OK);
 202
 203             unlink (msg);
 204             if (rename (backup, msg) == NOTOK)
 205                 adios (msg, "unable to rename %s to", backup);
 206             done (status);
 207     }
 208
 209     return 0;  /* dead code to satisfy the compiler */
 210 }