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/brkstring.h"
  10 #include "sbr/ambigsw.h"
  11 #include "sbr/path.h"
  12 #include "sbr/print_version.h"
  13 #include "sbr/print_help.h"
  14 #include "sbr/error.h"
  15 #include "h/done.h"
  16 #include "h/utils.h"
  17 #include "h/signals.h"
  18 #include "sbr/m_maildir.h"
  19 #include "sbr/m_mktemp.h"
  20
  21 #ifndef CYRUS_SASL
  22 # define SASLminc(a) (a)
  23 #else /* CYRUS_SASL */
  24 # define SASLminc(a)  0
  25 #endif /* CYRUS_SASL */
  26
  27 #ifndef TLS_SUPPORT
  28 # define TLSminc(a)  (a)
  29 #else /* TLS_SUPPORT */
  30 # define TLSminc(a)   0
  31 #endif /* TLS_SUPPORT */
  32
  33 #define WHOM_SWITCHES \
  34     X("alias aliasfile", 0, ALIASW) \
  35     X("check", 0, CHKSW) \
  36     X("nocheck", 0, NOCHKSW) \
  37     X("draft", 0, DRAFTSW) \
  38     X("draftfolder +folder", 6, DFOLDSW) \
  39     X("draftmessage msg", 6, DMSGSW) \
  40     X("nodraftfolder", 0, NDFLDSW) \
  41     X("version", 0, VERSIONSW) \
  42     X("help", 0, HELPSW) \
  43     X("client host", -6, CLIESW) \
  44     X("server host", 0, SERVSW) \
  45     X("snoop", 0, SNOOPSW) \
  46     X("sasl", SASLminc(4), SASLSW) \
  47     X("saslmech mechanism", SASLminc(-5), SASLMECHSW) \
  48     X("user username", SASLminc(-4), USERSW) \
  49     X("port server port name/number", 4, PORTSW) \
  50     X("tls", TLSminc(-3), TLSSW) \
  51     X("initialtls", TLSminc(-10), INITTLSSW) \
  52     X("notls", TLSminc(-5), NTLSSW) \
  53     X("mts smtp|sendmail/smtp|sendmail/pipe", 0, MTSSW) \
  54
  55 #define X(sw, minchars, id) id,
  56 DEFINE_SWITCH_ENUM(WHOM);
  57 #undef X
  58
  59 #define X(sw, minchars, id) { sw, minchars, id },
  60 DEFINE_SWITCH_ARRAY(WHOM, switches);
  61 #undef X
  62
  63
  64 int
  65 main (int argc, char **argv)
  66 {
  67     pid_t child_id = OK;
  68     int status, isdf = 0;
  69     int vecp = 0;
  70     bool distsw;
  71     char *cp, *dfolder = NULL, *dmsg = NULL;
  72     char *msg = NULL, **ap, **argp, backup[BUFSIZ];
  73     char buf[BUFSIZ], **arguments, *vec[MAXARGS];
  74
  75     if (nmh_init(argv[0], true, false)) { return 1; }
  76
  77     arguments = getarguments (invo_name, argc, argv, 1);
  78     argp = arguments;
  79
  80     vec[vecp++] = invo_name;
  81     vec[vecp++] = "-whom";
  82     vec[vecp++] = "-library";
  83     vec[vecp++] = mh_xstrdup(m_maildir(""));
  84
  85     if ((cp = context_find ("credentials"))) {
  86         /* post doesn't read context so need to pass credentials. */
  87         vec[vecp++] = "-credentials";
  88         vec[vecp++] = cp;
  89     }
  90
  91     /* Don't need to feed fileproc or mhlproc to post because
  92        it doesn't use them when used for whom. */
  93
  94     while ((cp = *argp++)) {
  95         if (*cp == '-') {
  96             switch (smatch (++cp, switches)) {
  97                 case AMBIGSW:
  98                     ambigsw (cp, switches);
  99                     done (1);
 100                 case UNKWNSW:
 101                     die("-%s unknown", cp);
 102
 103                 case HELPSW:
 104                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
 105                     print_help (buf, switches, 1);
 106                     done (0);
 107                 case VERSIONSW:
 108                     print_version(invo_name);
 109                     done (0);
 110
 111                 case CHKSW:
 112                 case NOCHKSW:
 113                 case SNOOPSW:
 114                 case SASLSW:
 115                 case TLSSW:
 116                 case INITTLSSW:
 117                 case NTLSSW:
 118                     vec[vecp++] = --cp;
 119                     continue;
 120
 121                 case DRAFTSW:
 122                     msg = draft;
 123                     continue;
 124
 125                 case DFOLDSW:
 126                     if (dfolder)
 127                         die("only one draft folder at a time!");
 128                     if (!(cp = *argp++) || *cp == '-')
 129                         die("missing argument to %s", argp[-2]);
 130                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 131                             *cp != '@' ? TFOLDER : TSUBCWF);
 132                     continue;
 133                 case DMSGSW:
 134                     if (dmsg)
 135                         die("only one draft message at a time!");
 136                     if (!(dmsg = *argp++) || *dmsg == '-')
 137                         die("missing argument to %s", argp[-2]);
 138                     continue;
 139                 case NDFLDSW:
 140                     dfolder = NULL;
 141                     isdf = NOTOK;
 142                     continue;
 143
 144                 case ALIASW:
 145                 case CLIESW:
 146                 case SERVSW:
 147                 case USERSW:
 148                 case PORTSW:
 149                 case SASLMECHSW:
 150                 case MTSSW:
 151                     vec[vecp++] = --cp;
 152                     if (!(cp = *argp++) || *cp == '-')
 153                         die("missing argument to %s", argp[-2]);
 154                     vec[vecp++] = cp;
 155                     continue;
 156             }
 157         }
 158         if (msg)
 159             die("only one draft at a time!");
 160         vec[vecp++] = msg = cp;
 161     }
 162
 163     /* allow Aliasfile: profile entry */
 164     if ((cp = context_find ("Aliasfile"))) {
 165         char *dp = NULL;
 166
 167         for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++) {
 168             vec[vecp++] = "-alias";
 169             vec[vecp++] = *ap;
 170         }
 171     }
 172
 173     if (msg == NULL) {
 174             cp  = mh_xstrdup(m_draft(dfolder, dmsg, 1, &isdf));
 175         msg = vec[vecp++] = cp;
 176     }
 177
 178     distsw = (cp = getenv("mhdist")) && *cp && atoi(cp) &&
 179         (cp = getenv("mhaltmsg")) && *cp;
 180     if (distsw) {
 181         if (distout (msg, cp, backup) == NOTOK)
 182             done (1);
 183         vec[vecp++] = "-dist";
 184     }
 185     vec[vecp] = NULL;
 186
 187     closefds (3);
 188
 189     if (distsw) {
 190         if ((child_id = fork()) == -1)
 191             adios("fork", "failed:");
 192
 193         if (child_id) {
 194             SIGNAL (SIGHUP, SIG_IGN);
 195             SIGNAL (SIGINT, SIG_IGN);
 196             SIGNAL (SIGQUIT, SIG_IGN);
 197             SIGNAL (SIGTERM, SIG_IGN);
 198
 199             status = pidwait(child_id, OK);
 200
 201             (void) m_unlink (msg);
 202             if (rename (backup, msg) == NOTOK)
 203                 adios (msg, "unable to rename %s to", backup);
 204             done (status);
 205         }
 206     }
 207
 208     /* Either the child, or no fork occurred. */
 209     execvp (postproc, vec);
 210     fprintf (stderr, "unable to exec ");
 211     perror (postproc);
 212     _exit(1);
 213 }