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