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/smatch.h"
  10 #include "sbr/getcpy.h"
  11 #include "sbr/context_find.h"
  12 #include "sbr/brkstring.h"
  13 #include "sbr/ambigsw.h"
  14 #include "sbr/print_version.h"
  15 #include "sbr/print_help.h"
  16 #include "sbr/error.h"
  17 #include "h/addrsbr.h"
  18 #include "h/aliasbr.h"
  19 #include "h/mts.h"
  20 #include "h/done.h"
  21 #include "h/utils.h"
  22
  23 #define ALI_SWITCHES \
  24     X("alias aliasfile", 0, ALIASW) \
  25     X("noalias", 0, NALIASW) \
  26     X("list", 0, LISTSW) \
  27     X("nolist", 0, NLISTSW) \
  28     X("user", 0, USERSW) \
  29     X("nouser", 0, NUSERSW) \
  30     X("version", 0, VERSIONSW) \
  31     X("help", 0, HELPSW) \
  32
  33 #define X(sw, minchars, id) id,
  34 DEFINE_SWITCH_ENUM(ALI);
  35 #undef X
  36
  37 #define X(sw, minchars, id) { sw, minchars, id },
  38 DEFINE_SWITCH_ARRAY(ALI, switches);
  39 #undef X
  40
  41 static int pos = 1;
  42
  43 extern struct aka *akahead;
  44
  45 /*
  46  * prototypes
  47  */
  48 static void print_aka (char *, bool, int);
  49 static void print_usr (char *, bool);
  50
  51
  52 int
  53 main (int argc, char **argv)
  54 {
  55     int i, vecp = 0;
  56     bool inverted, list, noalias;
  57     char *cp, **ap, **argp, buf[BUFSIZ];
  58     /* Really only need to allocate for argc-1, but must allocate at least 1,
  59        so go ahead and allocate for argc char pointers. */
  60     char **vec = mh_xmalloc (argc * sizeof (char *)), **arguments;
  61     struct aka *ak;
  62
  63     if (nmh_init(argv[0], true, true)) { return 1; }
  64
  65     mts_init ();
  66     arguments = getarguments (invo_name, argc, argv, 1);
  67     argp = arguments;
  68
  69     inverted = list = noalias = false;
  70     while ((cp = *argp++)) {
  71         if (*cp == '-') {
  72             switch (smatch (++cp, switches)) {
  73                 case AMBIGSW:
  74                     ambigsw (cp, switches);
  75                     done (1);
  76                 case UNKWNSW:
  77                     die("-%s unknown", cp);
  78
  79                 case HELPSW:
  80                     snprintf (buf, sizeof(buf), "%s [switches] aliases ...",
  81                         invo_name);
  82                     print_help (buf, switches, 1);
  83                     done (0);
  84                 case VERSIONSW:
  85                     print_version (invo_name);
  86                     done (0);
  87
  88                 case ALIASW:
  89                     if (!(cp = *argp++) || *cp == '-')
  90                         die("missing argument to %s", argp[-2]);
  91                     if ((i = alias (cp)) != AK_OK)
  92                         die("aliasing error in %s - %s", cp, akerror (i));
  93                     continue;
  94                 case NALIASW:
  95                     noalias = true;
  96                     continue;
  97
  98                 case LISTSW:
  99                     list = true;
 100                     continue;
 101                 case NLISTSW:
 102                     list = false;
 103                     continue;
 104
 105                 case USERSW:
 106                     inverted = true;
 107                     continue;
 108                 case NUSERSW:
 109                     inverted = false;
 110                     continue;
 111             }
 112         }
 113
 114         if (vecp < argc) {
 115             vec[vecp++] = cp;
 116         } else {
 117             /* Should never happen, but try to protect against code changes
 118                that could allow it. */
 119             die("too many arguments");
 120         }
 121     }
 122
 123     if (!noalias) {
 124         /* allow Aliasfile: profile entry */
 125         if ((cp = context_find ("Aliasfile"))) {
 126             char *dp = NULL;
 127
 128             for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++)
 129                 if ((i = alias (*ap)) != AK_OK)
 130                     die("aliasing error in %s - %s", *ap, akerror (i));
 131             free(dp);
 132         }
 133         alias (AliasFile);
 134     }
 135
 136     /*
 137      * If -user is specified
 138      */
 139     if (inverted) {
 140         if (vecp == 0)
 141             die("usage: %s -user addresses ...  (you forgot the addresses)",
 142                    invo_name);
 143
 144         for (i = 0; i < vecp; i++)
 145             print_usr (vec[i], list);
 146     } else {
 147         if (vecp) {
 148             /* print specified aliases */
 149             for (i = 0; i < vecp; i++)
 150                 print_aka (akvalue (vec[i]), list, 0);
 151         } else {
 152             /* print them all */
 153             for (ak = akahead; ak; ak = ak->ak_next) {
 154                 char *res;
 155
 156                 printf ("%s: ", ak->ak_name);
 157                 pos += strlen (ak->ak_name) + 1;
 158                 res = akresult(ak);
 159                 print_aka(res, list, pos);
 160                 free(res);
 161             }
 162         }
 163     }
 164
 165     free (vec);
 166     done (0);
 167     return 1;
 168 }
 169
 170 static void
 171 print_aka (char *p, bool list, int margin)
 172 {
 173     char c;
 174
 175     if (p == NULL) {
 176         puts("<empty>");
 177         return;
 178     }
 179
 180     while ((c = *p++)) {
 181         switch (c) {
 182             case ',':
 183                 if (*p) {
 184                     if (list)
 185                         printf ("\n%*s", margin, "");
 186                     else {
 187                         if (pos >= 68) {
 188                             fputs(",\n ", stdout);
 189                             pos = 2;
 190                         } else {
 191                             fputs(", ", stdout);
 192                             pos += 2;
 193                         }
 194                     }
 195                 }
 196
 197             case 0:
 198                 break;
 199
 200             default:
 201                 pos++;
 202                 putchar (c);
 203         }
 204     }
 205
 206     putchar ('\n');
 207     pos = 1;
 208 }
 209
 210 static void
 211 print_usr (char *s, bool list)
 212 {
 213     char *cp, *pp, *vp;
 214     struct aka *ak;
 215     struct mailname *mp, *np;
 216
 217     if ((pp = getname (s)) == NULL)
 218         die("no address in \"%s\"", s);
 219     if ((mp = getm (pp, NULL, 0, NULL, 0)) == NULL)
 220         die("bad address \"%s\"", s);
 221     while (getname (""))
 222         continue;
 223
 224     vp = NULL;
 225     for (ak = akahead; ak; ak = ak->ak_next) {
 226         pp = akresult (ak);
 227         while ((cp = getname (pp))) {
 228             if ((np = getm (cp, NULL, 0, NULL, 0)) == NULL)
 229                 continue;
 230             if (!strcasecmp (FENDNULL(mp->m_host),
 231                              FENDNULL(np->m_host))  &&
 232                 !strcasecmp (FENDNULL(mp->m_mbox),
 233                              FENDNULL(np->m_mbox))) {
 234                 vp = vp ? add (ak->ak_name, add (",", vp))
 235                     : getcpy (ak->ak_name);
 236                 mnfree (np);
 237                 while (getname (""))
 238                     continue;
 239                 break;
 240             }
 241             mnfree (np);
 242         }
 243     }
 244     mnfree (mp);
 245
 246     print_aka (vp ? vp : s, list, 0);
 247
 248     free(vp);
 249 }