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

   1 /* whom.c -- report to whom a message would be sent
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include <h/mh.h>
   9 #include "h/done.h"
  10 #include <h/utils.h>
  11 #include <h/signals.h>
  12 #include "sbr/m_maildir.h"
  13 #include "sbr/m_mktemp.h"
  14
  15 #ifndef CYRUS_SASL
  16 # define SASLminc(a) (a)
  17 #else /* CYRUS_SASL */
  18 # define SASLminc(a)  0
  19 #endif /* CYRUS_SASL */
  20
  21 #ifndef TLS_SUPPORT
  22 # define TLSminc(a)  (a)
  23 #else /* TLS_SUPPORT */
  24 # define TLSminc(a)   0
  25 #endif /* TLS_SUPPORT */
  26
  27 #define WHOM_SWITCHES \
  28     X("alias aliasfile", 0, ALIASW) \
  29     X("check", 0, CHKSW) \
  30     X("nocheck", 0, NOCHKSW) \
  31     X("draft", 0, DRAFTSW) \
  32     X("draftfolder +folder", 6, DFOLDSW) \
  33     X("draftmessage msg", 6, DMSGSW) \
  34     X("nodraftfolder", 0, NDFLDSW) \
  35     X("version", 0, VERSIONSW) \
  36     X("help", 0, HELPSW) \
  37     X("client host", -6, CLIESW) \
  38     X("server host", 0, SERVSW) \
  39     X("snoop", 0, SNOOPSW) \
  40     X("sasl", SASLminc(4), SASLSW) \
  41     X("saslmech mechanism", SASLminc(-5), SASLMECHSW) \
  42     X("user username", SASLminc(-4), USERSW) \
  43     X("port server port name/number", 4, PORTSW) \
  44     X("tls", TLSminc(-3), TLSSW) \
  45     X("initialtls", TLSminc(-10), INITTLSSW) \
  46     X("notls", TLSminc(-5), NTLSSW) \
  47     X("mts smtp|sendmail/smtp|sendmail/pipe", 0, MTSSW) \
  48
  49 #define X(sw, minchars, id) id,
  50 DEFINE_SWITCH_ENUM(WHOM);
  51 #undef X
  52
  53 #define X(sw, minchars, id) { sw, minchars, id },
  54 DEFINE_SWITCH_ARRAY(WHOM, switches);
  55 #undef X
  56
  57
  58 int
  59 main (int argc, char **argv)
  60 {
  61     pid_t child_id = OK;
  62     int status, isdf = 0;
  63     int vecp = 0;
  64     bool distsw;
  65     char *cp, *dfolder = NULL, *dmsg = NULL;
  66     char *msg = NULL, **ap, **argp, backup[BUFSIZ];
  67     char buf[BUFSIZ], **arguments, *vec[MAXARGS];
  68
  69     if (nmh_init(argv[0], true, false)) { return 1; }
  70
  71     arguments = getarguments (invo_name, argc, argv, 1);
  72     argp = arguments;
  73
  74     vec[vecp++] = invo_name;
  75     vec[vecp++] = "-whom";
  76     vec[vecp++] = "-library";
  77     vec[vecp++] = mh_xstrdup(m_maildir(""));
  78
  79     if ((cp = context_find ("credentials"))) {
  80         /* post doesn't read context so need to pass credentials. */
  81         vec[vecp++] = "-credentials";
  82         vec[vecp++] = cp;
  83     }
  84
  85     /* Don't need to feed fileproc or mhlproc to post because
  86        it doesn't use them when used for whom. */
  87
  88     while ((cp = *argp++)) {
  89         if (*cp == '-') {
  90             switch (smatch (++cp, switches)) {
  91                 case AMBIGSW:
  92                     ambigsw (cp, switches);
  93                     done (1);
  94                 case UNKWNSW:
  95                     die("-%s unknown", cp);
  96
  97                 case HELPSW:
  98                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
  99                     print_help (buf, switches, 1);
 100                     done (0);
 101                 case VERSIONSW:
 102                     print_version(invo_name);
 103                     done (0);
 104
 105                 case CHKSW:
 106                 case NOCHKSW:
 107                 case SNOOPSW:
 108                 case SASLSW:
 109                 case TLSSW:
 110                 case INITTLSSW:
 111                 case NTLSSW:
 112                     vec[vecp++] = --cp;
 113                     continue;
 114
 115                 case DRAFTSW:
 116                     msg = draft;
 117                     continue;
 118
 119                 case DFOLDSW:
 120                     if (dfolder)
 121                         die("only one draft folder at a time!");
 122                     if (!(cp = *argp++) || *cp == '-')
 123                         die("missing argument to %s", argp[-2]);
 124                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 125                             *cp != '@' ? TFOLDER : TSUBCWF);
 126                     continue;
 127                 case DMSGSW:
 128                     if (dmsg)
 129                         die("only one draft message at a time!");
 130                     if (!(dmsg = *argp++) || *dmsg == '-')
 131                         die("missing argument to %s", argp[-2]);
 132                     continue;
 133                 case NDFLDSW:
 134                     dfolder = NULL;
 135                     isdf = NOTOK;
 136                     continue;
 137
 138                 case ALIASW:
 139                 case CLIESW:
 140                 case SERVSW:
 141                 case USERSW:
 142                 case PORTSW:
 143                 case SASLMECHSW:
 144                 case MTSSW:
 145                     vec[vecp++] = --cp;
 146                     if (!(cp = *argp++) || *cp == '-')
 147                         die("missing argument to %s", argp[-2]);
 148                     vec[vecp++] = cp;
 149                     continue;
 150             }
 151         }
 152         if (msg)
 153             die("only one draft at a time!");
 154         vec[vecp++] = msg = cp;
 155     }
 156
 157     /* allow Aliasfile: profile entry */
 158     if ((cp = context_find ("Aliasfile"))) {
 159         char *dp = NULL;
 160
 161         for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++) {
 162             vec[vecp++] = "-alias";
 163             vec[vecp++] = *ap;
 164         }
 165     }
 166
 167     if (msg == NULL) {
 168             cp  = mh_xstrdup(m_draft(dfolder, dmsg, 1, &isdf));
 169         msg = vec[vecp++] = cp;
 170     }
 171
 172     distsw = (cp = getenv("mhdist")) && *cp && atoi(cp) &&
 173         (cp = getenv("mhaltmsg")) && *cp;
 174     if (distsw) {
 175         if (distout (msg, cp, backup) == NOTOK)
 176             done (1);
 177         vec[vecp++] = "-dist";
 178     }
 179     vec[vecp] = NULL;
 180
 181     closefds (3);
 182
 183     if (distsw) {
 184         if ((child_id = fork()) == -1)
 185             adios("fork", "failed:");
 186
 187         if (child_id) {
 188             SIGNAL (SIGHUP, SIG_IGN);
 189             SIGNAL (SIGINT, SIG_IGN);
 190             SIGNAL (SIGQUIT, SIG_IGN);
 191             SIGNAL (SIGTERM, SIG_IGN);
 192
 193             status = pidwait(child_id, OK);
 194
 195             (void) m_unlink (msg);
 196             if (rename (backup, msg) == NOTOK)
 197                 adios (msg, "unable to rename %s to", backup);
 198             done (status);
 199         }
 200     }
 201
 202     /* Either the child, or no fork occurred. */
 203     execvp (postproc, vec);
 204     fprintf (stderr, "unable to exec ");
 205     perror (postproc);
 206     _exit(1);
 207 }