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/getarguments.h"
  10 #include "sbr/smatch.h"
  11 #include "sbr/getcpy.h"
  12 #include "sbr/context_find.h"
  13 #include "sbr/brkstring.h"
  14 #include "sbr/ambigsw.h"
  15 #include "sbr/print_version.h"
  16 #include "sbr/print_help.h"
  17 #include "sbr/error.h"
  18 #include "h/addrsbr.h"
  19 #include "h/aliasbr.h"
  20 #include "h/mts.h"
  21 #include "h/done.h"
  22 #include "h/utils.h"
  23
  24 #define ALI_SWITCHES \
  25     X("alias aliasfile", 0, ALIASW) \
  26     X("noalias", 0, NALIASW) \
  27     X("list", 0, LISTSW) \
  28     X("nolist", 0, NLISTSW) \
  29     X("user", 0, USERSW) \
  30     X("nouser", 0, NUSERSW) \
  31     X("version", 0, VERSIONSW) \
  32     X("help", 0, HELPSW) \
  33
  34 #define X(sw, minchars, id) id,
  35 DEFINE_SWITCH_ENUM(ALI);
  36 #undef X
  37
  38 #define X(sw, minchars, id) { sw, minchars, id },
  39 DEFINE_SWITCH_ARRAY(ALI, switches);
  40 #undef X
  41
  42 static int pos = 1;
  43
  44 extern struct aka *akahead;
  45
  46 /*
  47  * prototypes
  48  */
  49 static void print_aka (char *, bool, int);
  50 static void print_usr (char *, bool);
  51
  52
  53 int
  54 main (int argc, char **argv)
  55 {
  56     int i, vecp = 0;
  57     bool inverted, list, noalias;
  58     char *cp, **ap, **argp, buf[BUFSIZ];
  59     /* Really only need to allocate for argc-1, but must allocate at least 1,
  60        so go ahead and allocate for argc char pointers. */
  61     char **vec = mh_xmalloc (argc * sizeof (char *)), **arguments;
  62     struct aka *ak;
  63
  64     if (nmh_init(argv[0], true, true)) { return 1; }
  65
  66     mts_init ();
  67     arguments = getarguments (invo_name, argc, argv, 1);
  68     argp = arguments;
  69
  70     inverted = list = noalias = false;
  71     while ((cp = *argp++)) {
  72         if (*cp == '-') {
  73             switch (smatch (++cp, switches)) {
  74                 case AMBIGSW:
  75                     ambigsw (cp, switches);
  76                     done (1);
  77                 case UNKWNSW:
  78                     die("-%s unknown", cp);
  79
  80                 case HELPSW:
  81                     snprintf (buf, sizeof(buf), "%s [switches] aliases ...",
  82                         invo_name);
  83                     print_help (buf, switches, 1);
  84                     done (0);
  85                 case VERSIONSW:
  86                     print_version (invo_name);
  87                     done (0);
  88
  89                 case ALIASW:
  90                     if (!(cp = *argp++) || *cp == '-')
  91                         die("missing argument to %s", argp[-2]);
  92                     if ((i = alias (cp)) != AK_OK)
  93                         die("aliasing error in %s - %s", cp, akerror (i));
  94                     continue;
  95                 case NALIASW:
  96                     noalias = true;
  97                     continue;
  98
  99                 case LISTSW:
 100                     list = true;
 101                     continue;
 102                 case NLISTSW:
 103                     list = false;
 104                     continue;
 105
 106                 case USERSW:
 107                     inverted = true;
 108                     continue;
 109                 case NUSERSW:
 110                     inverted = false;
 111                     continue;
 112             }
 113         }
 114
 115         if (vecp < argc) {
 116             vec[vecp++] = cp;
 117         } else {
 118             /* Should never happen, but try to protect against code changes
 119                that could allow it. */
 120             die("too many arguments");
 121         }
 122     }
 123
 124     if (!noalias) {
 125         /* allow Aliasfile: profile entry */
 126         if ((cp = context_find ("Aliasfile"))) {
 127             char *dp = NULL;
 128
 129             for (ap = brkstring(dp = mh_xstrdup(cp), " ", "\n"); ap && *ap; ap++)
 130                 if ((i = alias (*ap)) != AK_OK)
 131                     die("aliasing error in %s - %s", *ap, akerror (i));
 132             free(dp);
 133         }
 134         alias (AliasFile);
 135     }
 136
 137     /*
 138      * If -user is specified
 139      */
 140     if (inverted) {
 141         if (vecp == 0)
 142             die("usage: %s -user addresses ...  (you forgot the addresses)",
 143                    invo_name);
 144
 145         for (i = 0; i < vecp; i++)
 146             print_usr (vec[i], list);
 147     } else {
 148         if (vecp) {
 149             /* print specified aliases */
 150             for (i = 0; i < vecp; i++)
 151                 print_aka (akvalue (vec[i]), list, 0);
 152         } else {
 153             /* print them all */
 154             for (ak = akahead; ak; ak = ak->ak_next) {
 155                 char *res;
 156
 157                 printf ("%s: ", ak->ak_name);
 158                 pos += strlen (ak->ak_name) + 1;
 159                 res = akresult(ak);
 160                 print_aka(res, list, pos);
 161                 free(res);
 162             }
 163         }
 164     }
 165
 166     free (vec);
 167     done (0);
 168     return 1;
 169 }
 170
 171 static void
 172 print_aka (char *p, bool list, int margin)
 173 {
 174     char c;
 175
 176     if (p == NULL) {
 177         puts("<empty>");
 178         return;
 179     }
 180
 181     while ((c = *p++)) {
 182         switch (c) {
 183             case ',':
 184                 if (*p) {
 185                     if (list)
 186                         printf ("\n%*s", margin, "");
 187                     else {
 188                         if (pos >= 68) {
 189                             fputs(",\n ", stdout);
 190                             pos = 2;
 191                         } else {
 192                             fputs(", ", stdout);
 193                             pos += 2;
 194                         }
 195                     }
 196                 }
 197
 198             case 0:
 199                 break;
 200
 201             default:
 202                 pos++;
 203                 putchar (c);
 204         }
 205     }
 206
 207     putchar ('\n');
 208     pos = 1;
 209 }
 210
 211 static void
 212 print_usr (char *s, bool list)
 213 {
 214     char *cp, *pp, *vp;
 215     struct aka *ak;
 216     struct mailname *mp, *np;
 217
 218     if ((pp = getname (s)) == NULL)
 219         die("no address in \"%s\"", s);
 220     if ((mp = getm (pp, NULL, 0, NULL, 0)) == NULL)
 221         die("bad address \"%s\"", s);
 222     while (getname (""))
 223         continue;
 224
 225     vp = NULL;
 226     for (ak = akahead; ak; ak = ak->ak_next) {
 227         pp = akresult (ak);
 228         while ((cp = getname (pp))) {
 229             if ((np = getm (cp, NULL, 0, NULL, 0)) == NULL)
 230                 continue;
 231             if (!strcasecmp (FENDNULL(mp->m_host),
 232                              FENDNULL(np->m_host))  &&
 233                 !strcasecmp (FENDNULL(mp->m_mbox),
 234                              FENDNULL(np->m_mbox))) {
 235                 vp = vp ? add (ak->ak_name, add (",", vp))
 236                     : getcpy (ak->ak_name);
 237                 mnfree (np);
 238                 while (getname (""))
 239                     continue;
 240                 break;
 241             }
 242             mnfree (np);
 243         }
 244     }
 245     mnfree (mp);
 246
 247     print_aka (vp ? vp : s, list, 0);
 248
 249     free(vp);
 250 }