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