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/context_find.h"
  10 #include "sbr/brkstring.h"
  11 #include "sbr/ambigsw.h"
  12 #include "sbr/path.h"
  13 #include "sbr/print_version.h"
  14 #include "sbr/print_help.h"
  15 #include "sbr/error.h"
  16 #include "h/done.h"
  17 #include "h/utils.h"
  18 #include "h/signals.h"
  19 #include "sbr/m_maildir.h"
  20 #include "sbr/m_mktemp.h"
  21
  22 #ifndef CYRUS_SASL
  23 # define SASLminc(a) (a)
  24 #else /* CYRUS_SASL */
  25 # define SASLminc(a)  0
  26 #endif /* CYRUS_SASL */
  27
  28 #ifndef TLS_SUPPORT
  29 # define TLSminc(a)  (a)
  30 #else /* TLS_SUPPORT */
  31 # define TLSminc(a)   0
  32 #endif /* TLS_SUPPORT */
  33
  34 #define WHOM_SWITCHES \
  35     X("alias aliasfile", 0, ALIASW) \
  36     X("check", 0, CHKSW) \
  37     X("nocheck", 0, NOCHKSW) \
  38     X("draft", 0, DRAFTSW) \
  39     X("draftfolder +folder", 6, DFOLDSW) \
  40     X("draftmessage msg", 6, DMSGSW) \
  41     X("nodraftfolder", 0, NDFLDSW) \
  42     X("version", 0, VERSIONSW) \
  43     X("help", 0, HELPSW) \
  44     X("client host", -6, CLIESW) \
  45     X("server host", 0, SERVSW) \
  46     X("snoop", 0, SNOOPSW) \
  47     X("sasl", SASLminc(4), SASLSW) \
  48     X("saslmech mechanism", SASLminc(-5), SASLMECHSW) \
  49     X("user username", SASLminc(-4), USERSW) \
  50     X("port server port name/number", 4, PORTSW) \
  51     X("tls", TLSminc(-3), TLSSW) \
  52     X("initialtls", TLSminc(-10), INITTLSSW) \
  53     X("notls", TLSminc(-5), NTLSSW) \
  54     X("mts smtp|sendmail/smtp|sendmail/pipe", 0, MTSSW) \
  55
  56 #define X(sw, minchars, id) id,
  57 DEFINE_SWITCH_ENUM(WHOM);
  58 #undef X
  59
  60 #define X(sw, minchars, id) { sw, minchars, id },
  61 DEFINE_SWITCH_ARRAY(WHOM, switches);
  62 #undef X
  63
  64
  65 int
  66 main (int argc, char **argv)
  67 {
  68     pid_t child_id = OK;
  69     int status, isdf = 0;
  70     int vecp = 0;
  71     bool distsw;
  72     char *cp, *dfolder = NULL, *dmsg = NULL;
  73     char *msg = NULL, **ap, **argp, backup[BUFSIZ];
  74     char buf[BUFSIZ], **arguments, *vec[MAXARGS];
  75
  76     if (nmh_init(argv[0], true, false)) { return 1; }
  77
  78     arguments = getarguments (invo_name, argc, argv, 1);
  79     argp = arguments;
  80
  81     vec[vecp++] = invo_name;
  82     vec[vecp++] = "-whom";
  83     vec[vecp++] = "-library";
  84     vec[vecp++] = mh_xstrdup(m_maildir(""));
  85
  86     if ((cp = context_find ("credentials"))) {
  87         /* post doesn't read context so need to pass credentials. */
  88         vec[vecp++] = "-credentials";
  89         vec[vecp++] = cp;
  90     }
  91
  92     /* Don't need to feed fileproc or mhlproc to post because
  93        it doesn't use them when used for whom. */
  94
  95     while ((cp = *argp++)) {
  96         if (*cp == '-') {
  97             switch (smatch (++cp, switches)) {
  98                 case AMBIGSW:
  99                     ambigsw (cp, switches);
 100                     done (1);
 101                 case UNKWNSW:
 102                     die("-%s unknown", cp);
 103
 104                 case HELPSW:
 105                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
 106                     print_help (buf, switches, 1);
 107                     done (0);
 108                 case VERSIONSW:
 109                     print_version(invo_name);
 110                     done (0);
 111
 112                 case CHKSW:
 113                 case NOCHKSW:
 114                 case SNOOPSW:
 115                 case SASLSW:
 116                 case TLSSW:
 117                 case INITTLSSW:
 118                 case NTLSSW:
 119                     vec[vecp++] = --cp;
 120                     continue;
 121
 122                 case DRAFTSW:
 123                     msg = draft;
 124                     continue;
 125
 126                 case DFOLDSW:
 127                     if (dfolder)
 128                         die("only one draft folder at a time!");
 129                     if (!(cp = *argp++) || *cp == '-')
 130                         die("missing argument to %s", argp[-2]);
 131                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 132                             *cp != '@' ? TFOLDER : TSUBCWF);
 133                     continue;
 134                 case DMSGSW:
 135                     if (dmsg)
 136                         die("only one draft message at a time!");
 137                     if (!(dmsg = *argp++) || *dmsg == '-')
 138                         die("missing argument to %s", argp[-2]);
 139                     continue;
 140                 case NDFLDSW:
 141                     dfolder = NULL;
 142                     isdf = NOTOK;
 143                     continue;
 144
 145                 case ALIASW:
 146                 case CLIESW:
 147                 case SERVSW:
 148                 case USERSW:
 149                 case PORTSW:
 150                 case SASLMECHSW:
 151                 case MTSSW:
 152                     vec[vecp++] = --cp;
 153                     if (!(cp = *argp++) || *cp == '-')
 154                         die("missing argument to %s", argp[-2]);
 155                     vec[vecp++] = cp;
 156                     continue;
 157             }
 158         }
 159         if (msg)
 160             die("only one draft at a time!");
 161         vec[vecp++] = msg = cp;
 162     }
 163
 164     /* allow Aliasfile: profile entry */
 165     if ((cp = context_find ("Aliasfile"))) {
 166         char *dp = NULL;
 167
 168         for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++) {
 169             vec[vecp++] = "-alias";
 170             vec[vecp++] = *ap;
 171         }
 172     }
 173
 174     if (msg == NULL) {
 175             cp  = mh_xstrdup(m_draft(dfolder, dmsg, 1, &isdf));
 176         msg = vec[vecp++] = cp;
 177     }
 178
 179     distsw = (cp = getenv("mhdist")) && *cp && atoi(cp) &&
 180         (cp = getenv("mhaltmsg")) && *cp;
 181     if (distsw) {
 182         if (distout (msg, cp, backup) == NOTOK)
 183             done (1);
 184         vec[vecp++] = "-dist";
 185     }
 186     vec[vecp] = NULL;
 187
 188     closefds (3);
 189
 190     if (distsw) {
 191         if ((child_id = fork()) == -1)
 192             adios("fork", "failed:");
 193
 194         if (child_id) {
 195             SIGNAL (SIGHUP, SIG_IGN);
 196             SIGNAL (SIGINT, SIG_IGN);
 197             SIGNAL (SIGQUIT, SIG_IGN);
 198             SIGNAL (SIGTERM, SIG_IGN);
 199
 200             status = pidwait(child_id, OK);
 201
 202             (void) m_unlink (msg);
 203             if (rename (backup, msg) == NOTOK)
 204                 adios (msg, "unable to rename %s to", backup);
 205             done (status);
 206         }
 207     }
 208
 209     /* Either the child, or no fork occurred. */
 210     execvp (postproc, vec);
 211     fprintf (stderr, "unable to exec ");
 212     perror (postproc);
 213     _exit(1);
 214 }