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