Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 1 | /*********************************************************** |
| 2 | Written by: |
| 3 | Fred Gansevles <Fred.Gansevles@cs.utwente.nl> |
| 4 | Vakgroep Spa, |
| 5 | Faculteit der Informatica, |
| 6 | Universiteit Twente, |
| 7 | Enschede, |
| 8 | the Netherlands. |
| 9 | ******************************************************************/ |
| 10 | |
| 11 | /* NIS module implementation */ |
| 12 | |
| 13 | #include "allobjects.h" |
| 14 | #include "modsupport.h" |
| 15 | #include "ceval.h" |
| 16 | |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 17 | #include <sys/time.h> |
| 18 | #include <sys/types.h> |
| 19 | #include <rpc/rpc.h> |
| 20 | #include <rpcsvc/yp_prot.h> |
Guido van Rossum | 8a170cb | 1996-08-08 19:11:41 +0000 | [diff] [blame] | 21 | #include <rpcsvc/ypclnt.h> |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 22 | |
Guido van Rossum | 259552d | 1996-12-09 18:46:28 +0000 | [diff] [blame^] | 23 | #ifdef __sgi |
| 24 | /* This is missing from rpcsvc/ypclnt.h */ |
| 25 | extern int yp_get_default_domain(); |
| 26 | #endif |
| 27 | |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 28 | static object *NisError; |
| 29 | |
| 30 | static object * |
| 31 | nis_error (err) |
| 32 | int err; |
| 33 | { |
| 34 | err_setstr(NisError, yperr_string(err)); |
| 35 | return NULL; |
| 36 | } |
| 37 | |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 38 | static struct nis_map { |
| 39 | char *alias; |
| 40 | char *map; |
| 41 | } aliases [] = { |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 42 | {"passwd", "passwd.byname"}, |
| 43 | {"group", "group.byname"}, |
| 44 | {"networks", "networks.byaddr"}, |
| 45 | {"hosts", "hosts.byname"}, |
| 46 | {"protocols", "protocols.bynumber"}, |
| 47 | {"services", "services.byname"}, |
| 48 | {"aliases", "mail.aliases"}, |
| 49 | {"ethers", "ethers.byname"}, |
| 50 | {0L, 0L} |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 51 | }; |
| 52 | |
| 53 | static char * |
| 54 | nis_mapname (map) |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 55 | char *map; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 56 | { |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 57 | int i; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 58 | |
| 59 | for (i=0; aliases[i].alias != 0L; i++) |
| 60 | if (!strcmp (aliases[i].alias, map)) |
| 61 | map = aliases[i].map; |
| 62 | return map; |
| 63 | } |
| 64 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 65 | typedef int (*foreachfunc) PROTO((int, char *, int, char *, int, char *)); |
| 66 | |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 67 | static int |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 68 | nis_foreach (instatus, inkey, inkeylen, inval, invallen, indata) |
| 69 | int instatus; |
| 70 | char *inkey; |
| 71 | int inkeylen; |
| 72 | char *inval; |
| 73 | int invallen; |
| 74 | object *indata; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 75 | { |
| 76 | if (instatus == YP_TRUE) { |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 77 | object *key = newsizedstringobject(inkey, inkeylen); |
| 78 | object *val = newsizedstringobject(inval, invallen); |
| 79 | int err; |
| 80 | if (key == NULL || val == NULL) { |
| 81 | /* XXX error -- don't know how to handle */ |
| 82 | err_clear(); |
| 83 | XDECREF(key); |
| 84 | XDECREF(val); |
| 85 | return 1; |
| 86 | } |
| 87 | err = mappinginsert(indata, key, val); |
| 88 | DECREF(key); |
| 89 | DECREF(val); |
| 90 | if (err != 0) { |
| 91 | err_clear(); |
| 92 | return 1; |
| 93 | } |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 94 | return 0; |
| 95 | } |
| 96 | return 1; |
| 97 | } |
| 98 | |
| 99 | static object * |
| 100 | nis_match (self, args) |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 101 | object *self; |
| 102 | object *args; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 103 | { |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 104 | char *match; |
| 105 | char *domain; |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 106 | int keylen, len; |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 107 | char *key, *map; |
| 108 | int err; |
| 109 | object *res; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 110 | |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 111 | if (!getargs(args, "(s#s)", &key, &keylen, &map)) |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 112 | return NULL; |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 113 | if ((err = yp_get_default_domain(&domain)) != 0) |
| 114 | return nis_error(err); |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 115 | BGN_SAVE |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 116 | map = nis_mapname (map); |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 117 | err = yp_match (domain, map, key, keylen, &match, &len); |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 118 | END_SAVE |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 119 | if (err != 0) |
| 120 | return nis_error(err); |
| 121 | res = newsizedstringobject (match, len); |
| 122 | free (match); |
| 123 | return res; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | static object * |
| 127 | nis_cat (self, args) |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 128 | object *self; |
| 129 | object *args; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 130 | { |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 131 | char *domain; |
| 132 | char *map; |
| 133 | struct ypall_callback cb; |
| 134 | object *cat; |
| 135 | int err; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 136 | |
| 137 | if (!getstrarg(args, &map)) |
| 138 | return NULL; |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 139 | if ((err = yp_get_default_domain(&domain)) != 0) |
| 140 | return nis_error(err); |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 141 | cat = newdictobject (); |
| 142 | if (cat == NULL) |
| 143 | return NULL; |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 144 | cb.foreach = (foreachfunc)nis_foreach; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 145 | cb.data = (char *)cat; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 146 | BGN_SAVE |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 147 | map = nis_mapname (map); |
| 148 | err = yp_all (domain, map, &cb); |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 149 | END_SAVE |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 150 | if (err != 0) { |
| 151 | DECREF(cat); |
| 152 | return nis_error(err); |
| 153 | } |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 154 | return cat; |
| 155 | } |
| 156 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 157 | /* These should be u_long on Sun h/w but not on 64-bit h/w. |
| 158 | This is not portable to machines with 16-bit ints and no prototypes */ |
| 159 | #ifndef YPPROC_MAPLIST |
| 160 | #define YPPROC_MAPLIST 11 |
| 161 | #endif |
| 162 | #ifndef YPPROG |
| 163 | #define YPPROG 100004 |
| 164 | #endif |
| 165 | #ifndef YPVERS |
| 166 | #define YPVERS 2 |
| 167 | #endif |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 168 | |
| 169 | typedef char *domainname; |
| 170 | typedef char *mapname; |
| 171 | |
| 172 | enum nisstat { |
| 173 | NIS_TRUE = 1, |
| 174 | NIS_NOMORE = 2, |
| 175 | NIS_FALSE = 0, |
| 176 | NIS_NOMAP = -1, |
| 177 | NIS_NODOM = -2, |
| 178 | NIS_NOKEY = -3, |
| 179 | NIS_BADOP = -4, |
| 180 | NIS_BADDB = -5, |
| 181 | NIS_YPERR = -6, |
| 182 | NIS_BADARGS = -7, |
| 183 | NIS_VERS = -8 |
| 184 | }; |
| 185 | typedef enum nisstat nisstat; |
| 186 | |
| 187 | struct nismaplist { |
| 188 | mapname map; |
| 189 | struct nismaplist *next; |
| 190 | }; |
| 191 | typedef struct nismaplist nismaplist; |
| 192 | |
| 193 | struct nisresp_maplist { |
| 194 | nisstat stat; |
| 195 | nismaplist *maps; |
| 196 | }; |
| 197 | typedef struct nisresp_maplist nisresp_maplist; |
| 198 | |
| 199 | static struct timeval TIMEOUT = { 25, 0 }; |
| 200 | |
| 201 | static |
| 202 | bool_t |
| 203 | nis_xdr_domainname(xdrs, objp) |
| 204 | XDR *xdrs; |
| 205 | domainname *objp; |
| 206 | { |
| 207 | if (!xdr_string(xdrs, objp, YPMAXDOMAIN)) { |
| 208 | return (FALSE); |
| 209 | } |
| 210 | return (TRUE); |
| 211 | } |
| 212 | |
| 213 | static |
| 214 | bool_t |
| 215 | nis_xdr_mapname(xdrs, objp) |
| 216 | XDR *xdrs; |
| 217 | mapname *objp; |
| 218 | { |
| 219 | if (!xdr_string(xdrs, objp, YPMAXMAP)) { |
| 220 | return (FALSE); |
| 221 | } |
| 222 | return (TRUE); |
| 223 | } |
| 224 | |
| 225 | static |
| 226 | bool_t |
| 227 | nis_xdr_ypmaplist(xdrs, objp) |
| 228 | XDR *xdrs; |
| 229 | nismaplist *objp; |
| 230 | { |
| 231 | if (!nis_xdr_mapname(xdrs, &objp->map)) { |
| 232 | return (FALSE); |
| 233 | } |
| 234 | if (!xdr_pointer(xdrs, (char **)&objp->next, sizeof(nismaplist), nis_xdr_ypmaplist)) { |
| 235 | return (FALSE); |
| 236 | } |
| 237 | return (TRUE); |
| 238 | } |
| 239 | |
| 240 | static |
| 241 | bool_t |
| 242 | nis_xdr_ypstat(xdrs, objp) |
| 243 | XDR *xdrs; |
| 244 | nisstat *objp; |
| 245 | { |
| 246 | if (!xdr_enum(xdrs, (enum_t *)objp)) { |
| 247 | return (FALSE); |
| 248 | } |
| 249 | return (TRUE); |
| 250 | } |
| 251 | |
| 252 | |
| 253 | static |
| 254 | bool_t |
| 255 | nis_xdr_ypresp_maplist(xdrs, objp) |
| 256 | XDR *xdrs; |
| 257 | nisresp_maplist *objp; |
| 258 | { |
| 259 | if (!nis_xdr_ypstat(xdrs, &objp->stat)) { |
| 260 | return (FALSE); |
| 261 | } |
| 262 | if (!xdr_pointer(xdrs, (char **)&objp->maps, sizeof(nismaplist), nis_xdr_ypmaplist)) { |
| 263 | return (FALSE); |
| 264 | } |
| 265 | return (TRUE); |
| 266 | } |
| 267 | |
| 268 | |
| 269 | static |
| 270 | nisresp_maplist * |
| 271 | nisproc_maplist_2(argp, clnt) |
| 272 | domainname *argp; |
| 273 | CLIENT *clnt; |
| 274 | { |
| 275 | static nisresp_maplist res; |
| 276 | |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 277 | memset(&res, 0, sizeof(res)); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 278 | if (clnt_call(clnt, YPPROC_MAPLIST, nis_xdr_domainname, (caddr_t)argp, |
| 279 | nis_xdr_ypresp_maplist, (caddr_t)&res, TIMEOUT) |
| 280 | != RPC_SUCCESS) { |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 281 | return (NULL); |
| 282 | } |
| 283 | return (&res); |
| 284 | } |
| 285 | |
| 286 | static |
| 287 | nismaplist * |
| 288 | nis_maplist () |
| 289 | { |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 290 | nisresp_maplist *list; |
| 291 | char *dom; |
| 292 | CLIENT *cl, *clnt_create(); |
| 293 | char *server; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 294 | |
| 295 | yp_get_default_domain (&dom); |
| 296 | yp_master (dom, aliases[0].map, &server); |
| 297 | cl = clnt_create(server, YPPROG, YPVERS, "tcp"); |
| 298 | if (cl == NULL) { |
| 299 | clnt_pcreateerror(server); |
| 300 | return NULL; |
| 301 | } |
| 302 | list = nisproc_maplist_2 (&dom, cl); |
| 303 | if (list == NULL) |
| 304 | return NULL; |
| 305 | if (list->stat != NIS_TRUE) |
| 306 | return NULL; |
| 307 | return list->maps; |
| 308 | } |
| 309 | |
| 310 | static object * |
| 311 | nis_maps (self, args) |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 312 | object *self; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 313 | object *args; |
| 314 | { |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 315 | nismaplist *maps; |
| 316 | object *list; |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 317 | |
| 318 | if ((maps = nis_maplist ()) == NULL) |
| 319 | return NULL; |
| 320 | if ((list = newlistobject(0)) == NULL) |
| 321 | return NULL; |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 322 | for (maps = maps->next; maps; maps = maps->next) { |
| 323 | if (addlistitem (list, newstringobject (maps->map)) < 0) { |
| 324 | DECREF(list); |
| 325 | list = NULL; |
| 326 | break; |
| 327 | } |
| 328 | } |
| 329 | /* XXX Shouldn't we free the list of maps now? */ |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 330 | return list; |
| 331 | } |
| 332 | |
| 333 | static struct methodlist nis_methods[] = { |
| 334 | {"match", nis_match}, |
| 335 | {"cat", nis_cat}, |
| 336 | {"maps", nis_maps}, |
| 337 | {NULL, NULL} /* Sentinel */ |
| 338 | }; |
| 339 | |
| 340 | void |
| 341 | initnis () |
| 342 | { |
Guido van Rossum | 3562d52 | 1992-08-12 15:26:16 +0000 | [diff] [blame] | 343 | object *m, *d; |
| 344 | m = initmodule("nis", nis_methods); |
| 345 | d = getmoduledict(m); |
| 346 | NisError = newstringobject("nis.error"); |
| 347 | if (NisError == NULL || dictinsert(d, "error", NisError) != 0) |
| 348 | fatal("Cannot define nis.error"); |
Guido van Rossum | 9de7a01 | 1992-08-12 14:57:12 +0000 | [diff] [blame] | 349 | } |