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