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/m_draft.h"
  10 #include "sbr/context_find.h"
  11 #include "sbr/brkstring.h"
  12 #include "sbr/ambigsw.h"
  13 #include "sbr/path.h"
  14 #include "sbr/print_version.h"
  15 #include "sbr/print_help.h"
  16 #include "sbr/error.h"
  17 #include "h/done.h"
  18 #include "h/utils.h"
  19 #include "h/signals.h"
  20 #include "sbr/m_maildir.h"
  21 #include "sbr/m_mktemp.h"
  22
  23 #ifndef CYRUS_SASL
  24 # define SASLminc(a) (a)
  25 #else /* CYRUS_SASL */
  26 # define SASLminc(a)  0
  27 #endif /* CYRUS_SASL */
  28
  29 #ifndef TLS_SUPPORT
  30 # define TLSminc(a)  (a)
  31 #else /* TLS_SUPPORT */
  32 # define TLSminc(a)   0
  33 #endif /* TLS_SUPPORT */
  34
  35 #define WHOM_SWITCHES \
  36     X("alias aliasfile", 0, ALIASW) \
  37     X("check", 0, CHKSW) \
  38     X("nocheck", 0, NOCHKSW) \
  39     X("draft", 0, DRAFTSW) \
  40     X("draftfolder +folder", 6, DFOLDSW) \
  41     X("draftmessage msg", 6, DMSGSW) \
  42     X("nodraftfolder", 0, NDFLDSW) \
  43     X("version", 0, VERSIONSW) \
  44     X("help", 0, HELPSW) \
  45     X("client host", -6, CLIESW) \
  46     X("server host", 0, SERVSW) \
  47     X("snoop", 0, SNOOPSW) \
  48     X("sasl", SASLminc(4), SASLSW) \
  49     X("saslmech mechanism", SASLminc(-5), SASLMECHSW) \
  50     X("user username", SASLminc(-4), USERSW) \
  51     X("port server port name/number", 4, PORTSW) \
  52     X("tls", TLSminc(-3), TLSSW) \
  53     X("initialtls", TLSminc(-10), INITTLSSW) \
  54     X("notls", TLSminc(-5), NTLSSW) \
  55     X("mts smtp|sendmail/smtp|sendmail/pipe", 0, MTSSW) \
  56
  57 #define X(sw, minchars, id) id,
  58 DEFINE_SWITCH_ENUM(WHOM);
  59 #undef X
  60
  61 #define X(sw, minchars, id) { sw, minchars, id },
  62 DEFINE_SWITCH_ARRAY(WHOM, switches);
  63 #undef X
  64
  65
  66 int
  67 main (int argc, char **argv)
  68 {
  69     pid_t child_id = OK;
  70     int status, isdf = 0;
  71     int vecp = 0;
  72     bool distsw;
  73     char *cp, *dfolder = NULL, *dmsg = NULL;
  74     char *msg = NULL, **ap, **argp, backup[BUFSIZ];
  75     char buf[BUFSIZ], **arguments, *vec[MAXARGS];
  76
  77     if (nmh_init(argv[0], true, false)) { return 1; }
  78
  79     arguments = getarguments (invo_name, argc, argv, 1);
  80     argp = arguments;
  81
  82     vec[vecp++] = invo_name;
  83     vec[vecp++] = "-whom";
  84     vec[vecp++] = "-library";
  85     vec[vecp++] = mh_xstrdup(m_maildir(""));
  86
  87     if ((cp = context_find ("credentials"))) {
  88         /* post doesn't read context so need to pass credentials. */
  89         vec[vecp++] = "-credentials";
  90         vec[vecp++] = cp;
  91     }
  92
  93     /* Don't need to feed fileproc or mhlproc to post because
  94        it doesn't use them when used for whom. */
  95
  96     while ((cp = *argp++)) {
  97         if (*cp == '-') {
  98             switch (smatch (++cp, switches)) {
  99                 case AMBIGSW:
 100                     ambigsw (cp, switches);
 101                     done (1);
 102                 case UNKWNSW:
 103                     die("-%s unknown", cp);
 104
 105                 case HELPSW:
 106                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
 107                     print_help (buf, switches, 1);
 108                     done (0);
 109                 case VERSIONSW:
 110                     print_version(invo_name);
 111                     done (0);
 112
 113                 case CHKSW:
 114                 case NOCHKSW:
 115                 case SNOOPSW:
 116                 case SASLSW:
 117                 case TLSSW:
 118                 case INITTLSSW:
 119                 case NTLSSW:
 120                     vec[vecp++] = --cp;
 121                     continue;
 122
 123                 case DRAFTSW:
 124                     msg = draft;
 125                     continue;
 126
 127                 case DFOLDSW:
 128                     if (dfolder)
 129                         die("only one draft folder at a time!");
 130                     if (!(cp = *argp++) || *cp == '-')
 131                         die("missing argument to %s", argp[-2]);
 132                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 133                             *cp != '@' ? TFOLDER : TSUBCWF);
 134                     continue;
 135                 case DMSGSW:
 136                     if (dmsg)
 137                         die("only one draft message at a time!");
 138                     if (!(dmsg = *argp++) || *dmsg == '-')
 139                         die("missing argument to %s", argp[-2]);
 140                     continue;
 141                 case NDFLDSW:
 142                     dfolder = NULL;
 143                     isdf = NOTOK;
 144                     continue;
 145
 146                 case ALIASW:
 147                 case CLIESW:
 148                 case SERVSW:
 149                 case USERSW:
 150                 case PORTSW:
 151                 case SASLMECHSW:
 152                 case MTSSW:
 153                     vec[vecp++] = --cp;
 154                     if (!(cp = *argp++) || *cp == '-')
 155                         die("missing argument to %s", argp[-2]);
 156                     vec[vecp++] = cp;
 157                     continue;
 158             }
 159         }
 160         if (msg)
 161             die("only one draft at a time!");
 162         vec[vecp++] = msg = cp;
 163     }
 164
 165     /* allow Aliasfile: profile entry */
 166     if ((cp = context_find ("Aliasfile"))) {
 167         char *dp = NULL;
 168
 169         for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++) {
 170             vec[vecp++] = "-alias";
 171             vec[vecp++] = *ap;
 172         }
 173     }
 174
 175     if (msg == NULL) {
 176             cp  = mh_xstrdup(m_draft(dfolder, dmsg, 1, &isdf));
 177         msg = vec[vecp++] = cp;
 178     }
 179
 180     distsw = (cp = getenv("mhdist")) && *cp && atoi(cp) &&
 181         (cp = getenv("mhaltmsg")) && *cp;
 182     if (distsw) {
 183         if (distout (msg, cp, backup) == NOTOK)
 184             done (1);
 185         vec[vecp++] = "-dist";
 186     }
 187     vec[vecp] = NULL;
 188
 189     closefds (3);
 190
 191     if (distsw) {
 192         if ((child_id = fork()) == -1)
 193             adios("fork", "failed:");
 194
 195         if (child_id) {
 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             (void) m_unlink (msg);
 204             if (rename (backup, msg) == NOTOK)
 205                 adios (msg, "unable to rename %s to", backup);
 206             done (status);
 207         }
 208     }
 209
 210     /* Either the child, or no fork occurred. */
 211     execvp (postproc, vec);
 212     fprintf (stderr, "unable to exec ");
 213     perror (postproc);
 214     _exit(1);
 215 }