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 "sbr/ambigsw.h"
  10 #include "sbr/path.h"
  11 #include "sbr/print_version.h"
  12 #include "sbr/print_help.h"
  13 #include "sbr/error.h"
  14 #include "h/done.h"
  15 #include "h/utils.h"
  16 #include "h/signals.h"
  17 #include "sbr/m_maildir.h"
  18 #include "sbr/m_mktemp.h"
  19
  20 #ifndef CYRUS_SASL
  21 # define SASLminc(a) (a)
  22 #else /* CYRUS_SASL */
  23 # define SASLminc(a)  0
  24 #endif /* CYRUS_SASL */
  25
  26 #ifndef TLS_SUPPORT
  27 # define TLSminc(a)  (a)
  28 #else /* TLS_SUPPORT */
  29 # define TLSminc(a)   0
  30 #endif /* TLS_SUPPORT */
  31
  32 #define WHOM_SWITCHES \
  33     X("alias aliasfile", 0, ALIASW) \
  34     X("check", 0, CHKSW) \
  35     X("nocheck", 0, NOCHKSW) \
  36     X("draft", 0, DRAFTSW) \
  37     X("draftfolder +folder", 6, DFOLDSW) \
  38     X("draftmessage msg", 6, DMSGSW) \
  39     X("nodraftfolder", 0, NDFLDSW) \
  40     X("version", 0, VERSIONSW) \
  41     X("help", 0, HELPSW) \
  42     X("client host", -6, CLIESW) \
  43     X("server host", 0, SERVSW) \
  44     X("snoop", 0, SNOOPSW) \
  45     X("sasl", SASLminc(4), SASLSW) \
  46     X("saslmech mechanism", SASLminc(-5), SASLMECHSW) \
  47     X("user username", SASLminc(-4), USERSW) \
  48     X("port server port name/number", 4, PORTSW) \
  49     X("tls", TLSminc(-3), TLSSW) \
  50     X("initialtls", TLSminc(-10), INITTLSSW) \
  51     X("notls", TLSminc(-5), NTLSSW) \
  52     X("mts smtp|sendmail/smtp|sendmail/pipe", 0, MTSSW) \
  53
  54 #define X(sw, minchars, id) id,
  55 DEFINE_SWITCH_ENUM(WHOM);
  56 #undef X
  57
  58 #define X(sw, minchars, id) { sw, minchars, id },
  59 DEFINE_SWITCH_ARRAY(WHOM, switches);
  60 #undef X
  61
  62
  63 int
  64 main (int argc, char **argv)
  65 {
  66     pid_t child_id = OK;
  67     int status, isdf = 0;
  68     int vecp = 0;
  69     bool distsw;
  70     char *cp, *dfolder = NULL, *dmsg = NULL;
  71     char *msg = NULL, **ap, **argp, backup[BUFSIZ];
  72     char buf[BUFSIZ], **arguments, *vec[MAXARGS];
  73
  74     if (nmh_init(argv[0], true, false)) { return 1; }
  75
  76     arguments = getarguments (invo_name, argc, argv, 1);
  77     argp = arguments;
  78
  79     vec[vecp++] = invo_name;
  80     vec[vecp++] = "-whom";
  81     vec[vecp++] = "-library";
  82     vec[vecp++] = mh_xstrdup(m_maildir(""));
  83
  84     if ((cp = context_find ("credentials"))) {
  85         /* post doesn't read context so need to pass credentials. */
  86         vec[vecp++] = "-credentials";
  87         vec[vecp++] = cp;
  88     }
  89
  90     /* Don't need to feed fileproc or mhlproc to post because
  91        it doesn't use them when used for whom. */
  92
  93     while ((cp = *argp++)) {
  94         if (*cp == '-') {
  95             switch (smatch (++cp, switches)) {
  96                 case AMBIGSW:
  97                     ambigsw (cp, switches);
  98                     done (1);
  99                 case UNKWNSW:
 100                     die("-%s unknown", cp);
 101
 102                 case HELPSW:
 103                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
 104                     print_help (buf, switches, 1);
 105                     done (0);
 106                 case VERSIONSW:
 107                     print_version(invo_name);
 108                     done (0);
 109
 110                 case CHKSW:
 111                 case NOCHKSW:
 112                 case SNOOPSW:
 113                 case SASLSW:
 114                 case TLSSW:
 115                 case INITTLSSW:
 116                 case NTLSSW:
 117                     vec[vecp++] = --cp;
 118                     continue;
 119
 120                 case DRAFTSW:
 121                     msg = draft;
 122                     continue;
 123
 124                 case DFOLDSW:
 125                     if (dfolder)
 126                         die("only one draft folder at a time!");
 127                     if (!(cp = *argp++) || *cp == '-')
 128                         die("missing argument to %s", argp[-2]);
 129                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 130                             *cp != '@' ? TFOLDER : TSUBCWF);
 131                     continue;
 132                 case DMSGSW:
 133                     if (dmsg)
 134                         die("only one draft message at a time!");
 135                     if (!(dmsg = *argp++) || *dmsg == '-')
 136                         die("missing argument to %s", argp[-2]);
 137                     continue;
 138                 case NDFLDSW:
 139                     dfolder = NULL;
 140                     isdf = NOTOK;
 141                     continue;
 142
 143                 case ALIASW:
 144                 case CLIESW:
 145                 case SERVSW:
 146                 case USERSW:
 147                 case PORTSW:
 148                 case SASLMECHSW:
 149                 case MTSSW:
 150                     vec[vecp++] = --cp;
 151                     if (!(cp = *argp++) || *cp == '-')
 152                         die("missing argument to %s", argp[-2]);
 153                     vec[vecp++] = cp;
 154                     continue;
 155             }
 156         }
 157         if (msg)
 158             die("only one draft at a time!");
 159         vec[vecp++] = msg = cp;
 160     }
 161
 162     /* allow Aliasfile: profile entry */
 163     if ((cp = context_find ("Aliasfile"))) {
 164         char *dp = NULL;
 165
 166         for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++) {
 167             vec[vecp++] = "-alias";
 168             vec[vecp++] = *ap;
 169         }
 170     }
 171
 172     if (msg == NULL) {
 173             cp  = mh_xstrdup(m_draft(dfolder, dmsg, 1, &isdf));
 174         msg = vec[vecp++] = cp;
 175     }
 176
 177     distsw = (cp = getenv("mhdist")) && *cp && atoi(cp) &&
 178         (cp = getenv("mhaltmsg")) && *cp;
 179     if (distsw) {
 180         if (distout (msg, cp, backup) == NOTOK)
 181             done (1);
 182         vec[vecp++] = "-dist";
 183     }
 184     vec[vecp] = NULL;
 185
 186     closefds (3);
 187
 188     if (distsw) {
 189         if ((child_id = fork()) == -1)
 190             adios("fork", "failed:");
 191
 192         if (child_id) {
 193             SIGNAL (SIGHUP, SIG_IGN);
 194             SIGNAL (SIGINT, SIG_IGN);
 195             SIGNAL (SIGQUIT, SIG_IGN);
 196             SIGNAL (SIGTERM, SIG_IGN);
 197
 198             status = pidwait(child_id, OK);
 199
 200             (void) m_unlink (msg);
 201             if (rename (backup, msg) == NOTOK)
 202                 adios (msg, "unable to rename %s to", backup);
 203             done (status);
 204         }
 205     }
 206
 207     /* Either the child, or no fork occurred. */
 208     execvp (postproc, vec);
 209     fprintf (stderr, "unable to exec ");
 210     perror (postproc);
 211     _exit(1);
 212 }