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 "distsbr.h"
  10 #include "sbr/getarguments.h"
  11 #include "sbr/smatch.h"
  12 #include "sbr/closefds.h"
  13 #include "sbr/m_draft.h"
  14 #include "sbr/context_find.h"
  15 #include "sbr/brkstring.h"
  16 #include "sbr/ambigsw.h"
  17 #include "sbr/path.h"
  18 #include "sbr/print_version.h"
  19 #include "sbr/print_help.h"
  20 #include "sbr/error.h"
  21 #include "h/done.h"
  22 #include "h/utils.h"
  23 #include "h/signals.h"
  24 #include "sbr/m_maildir.h"
  25 #include "sbr/m_mktemp.h"
  26
  27 #ifndef CYRUS_SASL
  28 # define SASLminc(a) (a)
  29 #else /* CYRUS_SASL */
  30 # define SASLminc(a)  0
  31 #endif /* CYRUS_SASL */
  32
  33 #ifndef TLS_SUPPORT
  34 # define TLSminc(a)  (a)
  35 #else /* TLS_SUPPORT */
  36 # define TLSminc(a)   0
  37 #endif /* TLS_SUPPORT */
  38
  39 #define WHOM_SWITCHES \
  40     X("alias aliasfile", 0, ALIASW) \
  41     X("check", 0, CHKSW) \
  42     X("nocheck", 0, NOCHKSW) \
  43     X("draft", 0, DRAFTSW) \
  44     X("draftfolder +folder", 6, DFOLDSW) \
  45     X("draftmessage msg", 6, DMSGSW) \
  46     X("nodraftfolder", 0, NDFLDSW) \
  47     X("version", 0, VERSIONSW) \
  48     X("help", 0, HELPSW) \
  49     X("client host", -6, CLIESW) \
  50     X("server host", 0, SERVSW) \
  51     X("snoop", 0, SNOOPSW) \
  52     X("sasl", SASLminc(4), SASLSW) \
  53     X("saslmech mechanism", SASLminc(-5), SASLMECHSW) \
  54     X("user username", SASLminc(-4), USERSW) \
  55     X("port server port name/number", 4, PORTSW) \
  56     X("tls", TLSminc(-3), TLSSW) \
  57     X("initialtls", TLSminc(-10), INITTLSSW) \
  58     X("notls", TLSminc(-5), NTLSSW) \
  59     X("mts smtp|sendmail/smtp|sendmail/pipe", 0, MTSSW) \
  60
  61 #define X(sw, minchars, id) id,
  62 DEFINE_SWITCH_ENUM(WHOM);
  63 #undef X
  64
  65 #define X(sw, minchars, id) { sw, minchars, id },
  66 DEFINE_SWITCH_ARRAY(WHOM, switches);
  67 #undef X
  68
  69
  70 int
  71 main (int argc, char **argv)
  72 {
  73     pid_t child_id = OK;
  74     int status, isdf = 0;
  75     int vecp = 0;
  76     bool distsw;
  77     char *cp, *dfolder = NULL, *dmsg = NULL;
  78     char *msg = NULL, **ap, **argp, backup[BUFSIZ];
  79     char buf[BUFSIZ], **arguments, *vec[MAXARGS];
  80
  81     if (nmh_init(argv[0], true, false)) { return 1; }
  82
  83     arguments = getarguments (invo_name, argc, argv, 1);
  84     argp = arguments;
  85
  86     vec[vecp++] = invo_name;
  87     vec[vecp++] = "-whom";
  88     vec[vecp++] = "-library";
  89     vec[vecp++] = mh_xstrdup(m_maildir(""));
  90
  91     if ((cp = context_find ("credentials"))) {
  92         /* post doesn't read context so need to pass credentials. */
  93         vec[vecp++] = "-credentials";
  94         vec[vecp++] = cp;
  95     }
  96
  97     /* Don't need to feed fileproc or mhlproc to post because
  98        it doesn't use them when used for whom. */
  99
 100     while ((cp = *argp++)) {
 101         if (*cp == '-') {
 102             switch (smatch (++cp, switches)) {
 103                 case AMBIGSW:
 104                     ambigsw (cp, switches);
 105                     done (1);
 106                 case UNKWNSW:
 107                     die("-%s unknown", cp);
 108
 109                 case HELPSW:
 110                     snprintf (buf, sizeof(buf), "%s [switches] [file]", invo_name);
 111                     print_help (buf, switches, 1);
 112                     done (0);
 113                 case VERSIONSW:
 114                     print_version(invo_name);
 115                     done (0);
 116
 117                 case CHKSW:
 118                 case NOCHKSW:
 119                 case SNOOPSW:
 120                 case SASLSW:
 121                 case TLSSW:
 122                 case INITTLSSW:
 123                 case NTLSSW:
 124                     vec[vecp++] = --cp;
 125                     continue;
 126
 127                 case DRAFTSW:
 128                     msg = draft;
 129                     continue;
 130
 131                 case DFOLDSW:
 132                     if (dfolder)
 133                         die("only one draft folder at a time!");
 134                     if (!(cp = *argp++) || *cp == '-')
 135                         die("missing argument to %s", argp[-2]);
 136                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 137                             *cp != '@' ? TFOLDER : TSUBCWF);
 138                     continue;
 139                 case DMSGSW:
 140                     if (dmsg)
 141                         die("only one draft message at a time!");
 142                     if (!(dmsg = *argp++) || *dmsg == '-')
 143                         die("missing argument to %s", argp[-2]);
 144                     continue;
 145                 case NDFLDSW:
 146                     dfolder = NULL;
 147                     isdf = NOTOK;
 148                     continue;
 149
 150                 case ALIASW:
 151                 case CLIESW:
 152                 case SERVSW:
 153                 case USERSW:
 154                 case PORTSW:
 155                 case SASLMECHSW:
 156                 case MTSSW:
 157                     vec[vecp++] = --cp;
 158                     if (!(cp = *argp++) || *cp == '-')
 159                         die("missing argument to %s", argp[-2]);
 160                     vec[vecp++] = cp;
 161                     continue;
 162             }
 163         }
 164         if (msg)
 165             die("only one draft at a time!");
 166         vec[vecp++] = msg = cp;
 167     }
 168
 169     /* allow Aliasfile: profile entry */
 170     if ((cp = context_find ("Aliasfile"))) {
 171         char *dp = NULL;
 172
 173         for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++) {
 174             vec[vecp++] = "-alias";
 175             vec[vecp++] = *ap;
 176         }
 177     }
 178
 179     if (msg == NULL) {
 180             cp  = mh_xstrdup(m_draft(dfolder, dmsg, 1, &isdf));
 181         msg = vec[vecp++] = cp;
 182     }
 183
 184     distsw = (cp = getenv("mhdist")) && *cp && atoi(cp) &&
 185         (cp = getenv("mhaltmsg")) && *cp;
 186     if (distsw) {
 187         if (distout (msg, cp, backup) == NOTOK)
 188             done (1);
 189         vec[vecp++] = "-dist";
 190     }
 191     vec[vecp] = NULL;
 192
 193     closefds (3);
 194
 195     if (distsw) {
 196         if ((child_id = fork()) == -1)
 197             adios("fork", "failed:");
 198
 199         if (child_id) {
 200             SIGNAL (SIGHUP, SIG_IGN);
 201             SIGNAL (SIGINT, SIG_IGN);
 202             SIGNAL (SIGQUIT, SIG_IGN);
 203             SIGNAL (SIGTERM, SIG_IGN);
 204
 205             status = pidwait(child_id, OK);
 206
 207             (void) m_unlink (msg);
 208             if (rename (backup, msg) == NOTOK)
 209                 adios (msg, "unable to rename %s to", backup);
 210             done (status);
 211         }
 212     }
 213
 214     /* Either the child, or no fork occurred. */
 215     execvp (postproc, vec);
 216     fprintf (stderr, "unable to exec ");
 217     perror (postproc);
 218     _exit(1);
 219 }