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