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