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