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