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 "sbr/getcpy.h"
  10 #include "sbr/context_find.h"
  11 #include "sbr/brkstring.h"
  12 #include "sbr/ambigsw.h"
  13 #include "sbr/print_version.h"
  14 #include "sbr/print_help.h"
  15 #include "sbr/error.h"
  16 #include "h/addrsbr.h"
  17 #include "h/aliasbr.h"
  18 #include "h/mts.h"
  19 #include "h/done.h"
  20 #include "h/utils.h"
  21
  22 #define ALI_SWITCHES \
  23     X("alias aliasfile", 0, ALIASW) \
  24     X("noalias", 0, NALIASW) \
  25     X("list", 0, LISTSW) \
  26     X("nolist", 0, NLISTSW) \
  27     X("user", 0, USERSW) \
  28     X("nouser", 0, NUSERSW) \
  29     X("version", 0, VERSIONSW) \
  30     X("help", 0, HELPSW) \
  31
  32 #define X(sw, minchars, id) id,
  33 DEFINE_SWITCH_ENUM(ALI);
  34 #undef X
  35
  36 #define X(sw, minchars, id) { sw, minchars, id },
  37 DEFINE_SWITCH_ARRAY(ALI, switches);
  38 #undef X
  39
  40 static int pos = 1;
  41
  42 extern struct aka *akahead;
  43
  44 /*
  45  * prototypes
  46  */
  47 static void print_aka (char *, bool, int);
  48 static void print_usr (char *, bool);
  49
  50
  51 int
  52 main (int argc, char **argv)
  53 {
  54     int i, vecp = 0;
  55     bool inverted, list, noalias;
  56     char *cp, **ap, **argp, buf[BUFSIZ];
  57     /* Really only need to allocate for argc-1, but must allocate at least 1,
  58        so go ahead and allocate for argc char pointers. */
  59     char **vec = mh_xmalloc (argc * sizeof (char *)), **arguments;
  60     struct aka *ak;
  61
  62     if (nmh_init(argv[0], true, true)) { return 1; }
  63
  64     mts_init ();
  65     arguments = getarguments (invo_name, argc, argv, 1);
  66     argp = arguments;
  67
  68     inverted = list = noalias = false;
  69     while ((cp = *argp++)) {
  70         if (*cp == '-') {
  71             switch (smatch (++cp, switches)) {
  72                 case AMBIGSW:
  73                     ambigsw (cp, switches);
  74                     done (1);
  75                 case UNKWNSW:
  76                     die("-%s unknown", cp);
  77
  78                 case HELPSW:
  79                     snprintf (buf, sizeof(buf), "%s [switches] aliases ...",
  80                         invo_name);
  81                     print_help (buf, switches, 1);
  82                     done (0);
  83                 case VERSIONSW:
  84                     print_version (invo_name);
  85                     done (0);
  86
  87                 case ALIASW:
  88                     if (!(cp = *argp++) || *cp == '-')
  89                         die("missing argument to %s", argp[-2]);
  90                     if ((i = alias (cp)) != AK_OK)
  91                         die("aliasing error in %s - %s", cp, akerror (i));
  92                     continue;
  93                 case NALIASW:
  94                     noalias = true;
  95                     continue;
  96
  97                 case LISTSW:
  98                     list = true;
  99                     continue;
 100                 case NLISTSW:
 101                     list = false;
 102                     continue;
 103
 104                 case USERSW:
 105                     inverted = true;
 106                     continue;
 107                 case NUSERSW:
 108                     inverted = false;
 109                     continue;
 110             }
 111         }
 112
 113         if (vecp < argc) {
 114             vec[vecp++] = cp;
 115         } else {
 116             /* Should never happen, but try to protect against code changes
 117                that could allow it. */
 118             die("too many arguments");
 119         }
 120     }
 121
 122     if (!noalias) {
 123         /* allow Aliasfile: profile entry */
 124         if ((cp = context_find ("Aliasfile"))) {
 125             char *dp = NULL;
 126
 127             for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++)
 128                 if ((i = alias (*ap)) != AK_OK)
 129                     die("aliasing error in %s - %s", *ap, akerror (i));
 130             free(dp);
 131         }
 132         alias (AliasFile);
 133     }
 134
 135     /*
 136      * If -user is specified
 137      */
 138     if (inverted) {
 139         if (vecp == 0)
 140             die("usage: %s -user addresses ...  (you forgot the addresses)",
 141                    invo_name);
 142
 143         for (i = 0; i < vecp; i++)
 144             print_usr (vec[i], list);
 145     } else {
 146         if (vecp) {
 147             /* print specified aliases */
 148             for (i = 0; i < vecp; i++)
 149                 print_aka (akvalue (vec[i]), list, 0);
 150         } else {
 151             /* print them all */
 152             for (ak = akahead; ak; ak = ak->ak_next) {
 153                 char *res;
 154
 155                 printf ("%s: ", ak->ak_name);
 156                 pos += strlen (ak->ak_name) + 1;
 157                 res = akresult(ak);
 158                 print_aka(res, list, pos);
 159                 free(res);
 160             }
 161         }
 162     }
 163
 164     free (vec);
 165     done (0);
 166     return 1;
 167 }
 168
 169 static void
 170 print_aka (char *p, bool list, int margin)
 171 {
 172     char c;
 173
 174     if (p == NULL) {
 175         puts("<empty>");
 176         return;
 177     }
 178
 179     while ((c = *p++)) {
 180         switch (c) {
 181             case ',':
 182                 if (*p) {
 183                     if (list)
 184                         printf ("\n%*s", margin, "");
 185                     else {
 186                         if (pos >= 68) {
 187                             fputs(",\n ", stdout);
 188                             pos = 2;
 189                         } else {
 190                             fputs(", ", stdout);
 191                             pos += 2;
 192                         }
 193                     }
 194                 }
 195
 196             case 0:
 197                 break;
 198
 199             default:
 200                 pos++;
 201                 putchar (c);
 202         }
 203     }
 204
 205     putchar ('\n');
 206     pos = 1;
 207 }
 208
 209 static void
 210 print_usr (char *s, bool list)
 211 {
 212     char *cp, *pp, *vp;
 213     struct aka *ak;
 214     struct mailname *mp, *np;
 215
 216     if ((pp = getname (s)) == NULL)
 217         die("no address in \"%s\"", s);
 218     if ((mp = getm (pp, NULL, 0, NULL, 0)) == NULL)
 219         die("bad address \"%s\"", s);
 220     while (getname (""))
 221         continue;
 222
 223     vp = NULL;
 224     for (ak = akahead; ak; ak = ak->ak_next) {
 225         pp = akresult (ak);
 226         while ((cp = getname (pp))) {
 227             if ((np = getm (cp, NULL, 0, NULL, 0)) == NULL)
 228                 continue;
 229             if (!strcasecmp (FENDNULL(mp->m_host),
 230                              FENDNULL(np->m_host))  &&
 231                 !strcasecmp (FENDNULL(mp->m_mbox),
 232                              FENDNULL(np->m_mbox))) {
 233                 vp = vp ? add (ak->ak_name, add (",", vp))
 234                     : getcpy (ak->ak_name);
 235                 mnfree (np);
 236                 while (getname (""))
 237                     continue;
 238                 break;
 239             }
 240             mnfree (np);
 241         }
 242     }
 243     mnfree (mp);
 244
 245     print_aka (vp ? vp : s, list, 0);
 246
 247     free(vp);
 248 }