diplodocus.org Git - nmh/blob - uip/ali.c

   1 /* ali.c -- list nmh mail aliases
   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/addrsbr.h>
  10 #include <h/aliasbr.h>
  11 #include <h/mts.h>
  12 #include "h/done.h"
  13 #include <h/utils.h>
  14
  15 #define ALI_SWITCHES \
  16     X("alias aliasfile", 0, ALIASW) \
  17     X("noalias", 0, NALIASW) \
  18     X("list", 0, LISTSW) \
  19     X("nolist", 0, NLISTSW) \
  20     X("user", 0, USERSW) \
  21     X("nouser", 0, NUSERSW) \
  22     X("version", 0, VERSIONSW) \
  23     X("help", 0, HELPSW) \
  24
  25 #define X(sw, minchars, id) id,
  26 DEFINE_SWITCH_ENUM(ALI);
  27 #undef X
  28
  29 #define X(sw, minchars, id) { sw, minchars, id },
  30 DEFINE_SWITCH_ARRAY(ALI, switches);
  31 #undef X
  32
  33 static int pos = 1;
  34
  35 extern struct aka *akahead;
  36
  37 /*
  38  * prototypes
  39  */
  40 static void print_aka (char *, bool, int);
  41 static void print_usr (char *, bool);
  42
  43
  44 int
  45 main (int argc, char **argv)
  46 {
  47     int i, vecp = 0;
  48     bool inverted, list, noalias;
  49     char *cp, **ap, **argp, buf[BUFSIZ];
  50     /* Really only need to allocate for argc-1, but must allocate at least 1,
  51        so go ahead and allocate for argc char pointers. */
  52     char **vec = mh_xmalloc (argc * sizeof (char *)), **arguments;
  53     struct aka *ak;
  54
  55     if (nmh_init(argv[0], true, true)) { return 1; }
  56
  57     mts_init ();
  58     arguments = getarguments (invo_name, argc, argv, 1);
  59     argp = arguments;
  60
  61     inverted = list = noalias = false;
  62     while ((cp = *argp++)) {
  63         if (*cp == '-') {
  64             switch (smatch (++cp, switches)) {
  65                 case AMBIGSW:
  66                     ambigsw (cp, switches);
  67                     done (1);
  68                 case UNKWNSW:
  69                     die("-%s unknown", cp);
  70
  71                 case HELPSW:
  72                     snprintf (buf, sizeof(buf), "%s [switches] aliases ...",
  73                         invo_name);
  74                     print_help (buf, switches, 1);
  75                     done (0);
  76                 case VERSIONSW:
  77                     print_version (invo_name);
  78                     done (0);
  79
  80                 case ALIASW:
  81                     if (!(cp = *argp++) || *cp == '-')
  82                         die("missing argument to %s", argp[-2]);
  83                     if ((i = alias (cp)) != AK_OK)
  84                         die("aliasing error in %s - %s", cp, akerror (i));
  85                     continue;
  86                 case NALIASW:
  87                     noalias = true;
  88                     continue;
  89
  90                 case LISTSW:
  91                     list = true;
  92                     continue;
  93                 case NLISTSW:
  94                     list = false;
  95                     continue;
  96
  97                 case USERSW:
  98                     inverted = true;
  99                     continue;
 100                 case NUSERSW:
 101                     inverted = false;
 102                     continue;
 103             }
 104         }
 105
 106         if (vecp < argc) {
 107             vec[vecp++] = cp;
 108         } else {
 109             /* Should never happen, but try to protect against code changes
 110                that could allow it. */
 111             die("too many arguments");
 112         }
 113     }
 114
 115     if (!noalias) {
 116         /* allow Aliasfile: profile entry */
 117         if ((cp = context_find ("Aliasfile"))) {
 118             char *dp = NULL;
 119
 120             for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++)
 121                 if ((i = alias (*ap)) != AK_OK)
 122                     die("aliasing error in %s - %s", *ap, akerror (i));
 123             free(dp);
 124         }
 125         alias (AliasFile);
 126     }
 127
 128     /*
 129      * If -user is specified
 130      */
 131     if (inverted) {
 132         if (vecp == 0)
 133             die("usage: %s -user addresses ...  (you forgot the addresses)",
 134                    invo_name);
 135
 136         for (i = 0; i < vecp; i++)
 137             print_usr (vec[i], list);
 138     } else {
 139         if (vecp) {
 140             /* print specified aliases */
 141             for (i = 0; i < vecp; i++)
 142                 print_aka (akvalue (vec[i]), list, 0);
 143         } else {
 144             /* print them all */
 145             for (ak = akahead; ak; ak = ak->ak_next) {
 146                 char *res;
 147
 148                 printf ("%s: ", ak->ak_name);
 149                 pos += strlen (ak->ak_name) + 1;
 150                 res = akresult(ak);
 151                 print_aka(res, list, pos);
 152                 free(res);
 153             }
 154         }
 155     }
 156
 157     free (vec);
 158     done (0);
 159     return 1;
 160 }
 161
 162 static void
 163 print_aka (char *p, bool list, int margin)
 164 {
 165     char c;
 166
 167     if (p == NULL) {
 168         puts("<empty>");
 169         return;
 170     }
 171
 172     while ((c = *p++)) {
 173         switch (c) {
 174             case ',':
 175                 if (*p) {
 176                     if (list)
 177                         printf ("\n%*s", margin, "");
 178                     else {
 179                         if (pos >= 68) {
 180                             fputs(",\n ", stdout);
 181                             pos = 2;
 182                         } else {
 183                             fputs(", ", stdout);
 184                             pos += 2;
 185                         }
 186                     }
 187                 }
 188
 189             case 0:
 190                 break;
 191
 192             default:
 193                 pos++;
 194                 putchar (c);
 195         }
 196     }
 197
 198     putchar ('\n');
 199     pos = 1;
 200 }
 201
 202 static void
 203 print_usr (char *s, bool list)
 204 {
 205     char *cp, *pp, *vp;
 206     struct aka *ak;
 207     struct mailname *mp, *np;
 208
 209     if ((pp = getname (s)) == NULL)
 210         die("no address in \"%s\"", s);
 211     if ((mp = getm (pp, NULL, 0, NULL, 0)) == NULL)
 212         die("bad address \"%s\"", s);
 213     while (getname (""))
 214         continue;
 215
 216     vp = NULL;
 217     for (ak = akahead; ak; ak = ak->ak_next) {
 218         pp = akresult (ak);
 219         while ((cp = getname (pp))) {
 220             if ((np = getm (cp, NULL, 0, NULL, 0)) == NULL)
 221                 continue;
 222             if (!strcasecmp (FENDNULL(mp->m_host),
 223                              FENDNULL(np->m_host))  &&
 224                 !strcasecmp (FENDNULL(mp->m_mbox),
 225                              FENDNULL(np->m_mbox))) {
 226                 vp = vp ? add (ak->ak_name, add (",", vp))
 227                     : getcpy (ak->ak_name);
 228                 mnfree (np);
 229                 while (getname (""))
 230                     continue;
 231                 break;
 232             }
 233             mnfree (np);
 234         }
 235     }
 236     mnfree (mp);
 237
 238     print_aka (vp ? vp : s, list, 0);
 239
 240     free(vp);
 241 }