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