示例#1
0
/*
 * Handle the case in which we have the directory object but not its table.
 * It is called when we try to lookup an item and get back a NIS_NOSUCHTABLE.
 * On master, table should always exist; missing due to a mkdir failure
 *	master: create table & return (item) not found
 *	master & readonly: return system error
 * On replica: indicates we have not seen directory's update yet.
 *	replica: add to pinglist and return NIS_NOT_ME
 *	replica & readonly: return NIS_NOT_ME
 */
nis_error
recover_from_no_table(nis_object* d_obj, nis_name dirname)
{
	if (we_serve(&(d_obj->DI_data), MASTER_ONLY)) {
		if (readonly)
			return (NIS_TRYAGAIN);
		else {
			/* create table */
			nis_error status;

			if ((status = db_create(dirname, &tbl_prototype)) !=
			    NIS_SUCCESS) {
				syslog(LOG_ERR,
					"Unable to create table %s: %s.",
					dirname, nis_sperrno(status));
				return (status);
			} else
				return (NIS_SUCCESS);
		}
	} else {
		/* replica */
		if (!readonly) /* force update */
			add_pingitem(d_obj, time(0), &upd_list);
		return (NIS_NOT_ME);
	}
}
示例#2
0
char *
nis_sperror_r (const nis_error status, const char *label,
	       char *buffer, size_t buflen)
{
  if (snprintf (buffer, buflen, "%s: %s", label, nis_sperrno (status))
      >= buflen)
    {
      __set_errno (ERANGE);
      return NULL;
    }

  return buffer;
}
示例#3
0
void
__nis_print_result(nis_result *res)
{
	(void) fprintf(__nis_debug_file,
		"status=%s, %d object%s, [z=%d, d=%d, a=%d, c=%d]\n",
		nis_sperrno(res->status),
		res->objects.objects_len,
		res->objects.objects_len == 1 ? "" : "s",
		res->zticks,
		res->dticks,
		res->aticks,
		res->cticks);
}
示例#4
0
int
nisplus_reload(mnt_map *m, char *map, void (*fn) ())
{
  int error = 0;
  struct nis_callback_data data;
  nis_result *result;
  char *org;		/* if map does not have ".org_dir" then append it */
  nis_name map_name;
  size_t l;

  org = strstr(map, NISPLUS_ORGDIR);
  if (org == NULL)
    org = NISPLUS_ORGDIR;
  else
    org = "";

  /* make some room for the NIS map_name */
  l = strlen(map) + sizeof(NISPLUS_ORGDIR);
  map_name = xmalloc(l);
  if (map_name == NULL) {
    plog(XLOG_ERROR, "Unable to create map_name %s: %s",
	 map, strerror(ENOMEM));
    return ENOMEM;
  }
  xsnprintf(map_name, l, "%s%s", map, org);

  data.ncd_m = m;
  data.ncd_map = map_name;
  data.ncd_fn = fn;

  dlog("NISplus reload for %s", map);

  result = nis_list(map_name,
		    EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH,
		    (int (*)()) nisplus_callback,
		    &data);

  /* free off the NIS map_name */
  XFREE(map_name);

  if (result->status != NIS_SUCCESS && result->status != NIS_CBRESULTS)
    error = 1;

  if (error)
    plog(XLOG_ERROR, "error grabbing nisplus map of %s: %s",
	 map,
	 nis_sperrno(result->status));

  nis_freeresult(result);
  return error;
}
示例#5
0
文件: nis_print.c 项目: Xilinx/eglibc
void
nis_print_result (const nis_result *res)
{
  unsigned int i;

  printf (_("Status            : %s\n"), nis_sperrno (NIS_RES_STATUS (res)));
  printf (_("Number of objects : %u\n"), res->objects.objects_len);

  for (i = 0; i < res->objects.objects_len; i++)
    {
      printf (_("Object #%d:\n"), i);
      nis_print_object (&res->objects.objects_val[i]);
    }
}
示例#6
0
/* Check that someone else don't have the same auth information already */
static
nis_error
auth_exists(char *princname, char *auth_name, char *auth_type, char *domain)
{
	char sname[NIS_MAXNAMELEN+MAXHOSTNAMELEN+64];
	nis_result	*res;
	nis_error status;
	char *foundprinc;

	(void) sprintf(sname, "[auth_name=%s,auth_type=%s],%s.%s",
		auth_name, auth_type, CRED_TABLE, domain);
	if (sname[strlen(sname)-1] != '.')
		strcat(sname, ".");
	/* Don't want FOLLOW_PATH here */
	res = nis_list(sname,
		MASTER_ONLY+USE_DGRAM+NO_AUTHINFO+FOLLOW_LINKS,
		NULL, NULL);

	status = res->status;
	switch (res->status) {
	case NIS_NOTFOUND:
		break;
	case NIS_TRYAGAIN :
		(void) fprintf(stderr,
			"%s: NIS+ server busy, try again later.\n",
			program_name);
		exit(1);
	case NIS_PERMISSION :
		(void) fprintf(stderr,
		"%s: insufficient permission to look up old credentials.\n",
			program_name);
		exit(1);
	case NIS_SUCCESS:
		foundprinc = ENTRY_VAL(res->objects.objects_val, 0);
		if (nis_dir_cmp(foundprinc, princname) != SAME_NAME) {
			(void) fprintf(stderr,
	"%s: %s credentials with auth_name '%s' already belong to '%s'.\n",
			program_name, auth_type, auth_name, foundprinc);
			exit(1);
		}
		break;
	default:
		(void) fprintf(stderr,
			"%s: error looking at cred table, NIS+ error: %s\n",
			program_name, nis_sperrno(res->status));
		exit(1);
	}
	nis_freeresult(res);
	return (status);
}
示例#7
0
int
nisplus_init(mnt_map *m, char *map, time_t *tp)
{
  nis_result *result;
  char *org;		/* if map does not have ".org_dir" then append it */
  nis_name map_name;
  int error = 0;
  size_t l;

  org = strstr(map, NISPLUS_ORGDIR);
  if (org == NULL)
    org = NISPLUS_ORGDIR;
  else
    org = "";

  /* make some room for the NIS map_name */
  l = strlen(map) + sizeof(NISPLUS_ORGDIR);
  map_name = xmalloc(l);
  if (map_name == NULL) {
    plog(XLOG_ERROR,
	 "Unable to create map_name %s: %s",
	 map,
	 strerror(ENOMEM));
    return ENOMEM;
  }
  xsnprintf(map_name, l, "%s%s", map, org);

  result = nis_lookup(map_name, (EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH));

  /* free off the NIS map_name */
  XFREE(map_name);

  if (result == NULL) {
    plog(XLOG_ERROR, "NISplus init <%s>: %s", map, strerror(ENOMEM));
    return ENOMEM;
  }

  if (result->status != NIS_SUCCESS) {
    dlog("NISplus init <%s>: %s (%d)",
	 map, nis_sperrno(result->status), result->status);

    error = ENOENT;
  }

  *tp = 0;			/* no time */
  nis_freeresult(result);
  return error;
}
示例#8
0
int lookup_mount(const char *root, const char *name, int name_len, void *context)
{
    struct lookup_context *ctxt = (struct lookup_context *) context;
    char tablename[strlen(name) + strlen(ctxt->mapname) +
                   strlen(ctxt->domainname) + 20];
    nis_result *result;
    int rv;

    debug(MODPREFIX "looking up %s", name);

    sprintf(tablename, "[key=%s],%s.org_dir.%s", name, ctxt->mapname,
            ctxt->domainname);

    result = nis_list(tablename, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
    if (result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) {
        /* Try to get the "*" entry if there is one - note that we *don't*
           modify "name" so & -> the name we used, not "*" */
        sprintf(tablename, "[key=*],%s.org_dir.%s", ctxt->mapname,
                ctxt->domainname);
        result = nis_list(tablename, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
    }
    if (result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) {
        crit(MODPREFIX "lookup for %s failed: %s", name,
             nis_sperrno(result->status));
        return 1;
    }

    debug(MODPREFIX "%s -> %s", name,
          NIS_RES_OBJECT(result)->EN_data.en_cols.en_cols_val[1].ec_value.
          ec_value_val);

    rv = ctxt->parse->parse_mount(root, name, name_len,
                                  NIS_RES_OBJECT(result)->EN_data.en_cols.
                                  en_cols_val[1].ec_value.ec_value_val,
                                  ctxt->parse->context);
    return rv;
}
示例#9
0
/*
 * Try to locate a key using NIS+.
 */
int
nisplus_search(mnt_map *m, char *map, char *key, char **val, time_t *tp)
{
  nis_result *result;
  int error = 0;
  struct nisplus_search_callback_data data;
  nis_name index;
  char *org;		/* if map does not have ".org_dir" then append it */
  size_t l;

  org = strstr(map, NISPLUS_ORGDIR);
  if (org == NULL)
    org = NISPLUS_ORGDIR;
  else
    org = "";

  /* make some room for the NIS index */
  l = sizeof('[')		/* for opening selection criteria */
    + sizeof(NISPLUS_KEY)
    + strlen(key)
    + sizeof(']')		/* for closing selection criteria */
    + sizeof(',')		/* + 1 for , separator */
    + strlen(map)
    + sizeof(NISPLUS_ORGDIR);
  index = xmalloc(l);
  if (index == NULL) {
    plog(XLOG_ERROR,
	 "Unable to create index %s: %s",
	 map,
	 strerror(ENOMEM));
    return ENOMEM;
  }
  xsnprintf(index, l, "[%s%s],%s%s", NISPLUS_KEY, key, map, org);

  data.key = key;
  data.value = NULL;

  dlog("NISplus search for %s", index);

  result = nis_list(index,
		    EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH,
		    (int (*)()) nisplus_search_callback,
		    &data);

  /* free off the NIS index */
  XFREE(index);

  if (result == NULL) {
    plog(XLOG_ERROR, "nisplus_search: %s: %s", map, strerror(ENOMEM));
    return ENOMEM;
  }

  /*
   * Do something interesting with the return code
   */
  switch (result->status) {
  case NIS_SUCCESS:
  case NIS_CBRESULTS:

    if (data.value == NULL) {
      nis_object *value = result->objects.objects_val;
      dlog("NISplus search found <nothing>");
      dlog("NISplus search for %s: %s(%d)",
	   map, nis_sperrno(result->status), result->status);

      if (value != NULL)
	data.value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1));
    }

    if (m->cfm && (m->cfm->cfm_flags & CFM_SUN_MAP_SYNTAX)) {
      *val = sun_entry2amd(key, data.value);
      XFREE(data.value);	/* strnsave malloc'ed it above */
    } else
      *val = data.value;

    if (*val) {
      error = 0;
      dlog("NISplus search found %s", *val);
    } else {
      error = ENOENT;
      dlog("NISplus search found nothing");
    }

    *tp = 0;
    break;

  case NIS_NOSUCHNAME:
    dlog("NISplus search returned %d", result->status);
    error = ENOENT;
    break;

  default:
    plog(XLOG_ERROR, "nisplus_search: %s: %s", map, nis_sperrno(result->status));
    error = EIO;
    break;
  }
  nis_freeresult(result);

  return error;
}
示例#10
0
文件: nisplus.c 项目: akissa/exim
static int
nisplus_find(void *handle, uschar *filename, uschar *query, int length,
  uschar **result, uschar **errmsg, uint *do_cache)
{
int i;
int ssize = 0;
int offset = 0;
int error_error = FAIL;
uschar *field_name = NULL;
nis_result *nrt = NULL;
nis_result *nre = NULL;
nis_object *tno, *eno;
struct entry_obj *eo;
struct table_obj *ta;
uschar *p = query + length;
uschar *yield = NULL;

do_cache = do_cache;   /* Placate picky compilers */

/* Search backwards for a colon to see if a result field name
has been given. */

while (p > query && p[-1] != ':') p--;

if (p > query)
  {
  field_name = p;
  p[-1] = 0;
  }
else p = query + length;

/* Now search backwards to find the comma that starts the
table name. */

while (p > query && p[-1] != ',') p--;
if (p <= query)
  {
  *errmsg = US"NIS+ query malformed";
  error_error = DEFER;
  goto NISPLUS_EXIT;
  }

/* Look up the data for the table, in order to get the field names,
check that we got back a table, and set up pointers so the field
names can be scanned. */

nrt = nis_lookup(CS p, EXPAND_NAME | NO_CACHE);
if (nrt->status != NIS_SUCCESS)
  {
  *errmsg = string_sprintf("NIS+ error accessing %s table: %s", p,
    nis_sperrno(nrt->status));
  if (nrt->status != NIS_NOTFOUND && nrt->status != NIS_NOSUCHTABLE)
    error_error = DEFER;
  goto NISPLUS_EXIT;
  }
tno = nrt->objects.objects_val;
if (tno->zo_data.zo_type != TABLE_OBJ)
  {
  *errmsg = string_sprintf("NIS+ error: %s is not a table", p);
  goto NISPLUS_EXIT;
  }
ta = &(tno->zo_data.objdata_u.ta_data);

/* Now look up the entry in the table, check that we got precisely one
object and that it is a table entry. */

nre = nis_list(CS query, EXPAND_NAME, NULL, NULL);
if (nre->status != NIS_SUCCESS)
  {
  *errmsg = string_sprintf("NIS+ error accessing entry %s: %s",
    query, nis_sperrno(nre->status));
  goto NISPLUS_EXIT;
  }
if (nre->objects.objects_len > 1)
  {
  *errmsg = string_sprintf("NIS+ returned more than one object for %s",
    query);
  goto NISPLUS_EXIT;
  }
else if (nre->objects.objects_len < 1)
  {
  *errmsg = string_sprintf("NIS+ returned no data for %s", query);
  goto NISPLUS_EXIT;
  }
eno = nre->objects.objects_val;
if (eno->zo_data.zo_type != ENTRY_OBJ)
  {
  *errmsg = string_sprintf("NIS+ error: %s is not an entry", query);
  goto NISPLUS_EXIT;
  }

/* Scan the columns in the entry and in the table. If a result field
was given, look for that field; otherwise concatenate all the fields
with their names. */

eo = &(eno->zo_data.objdata_u.en_data);
for (i = 0; i < eo->en_cols.en_cols_len; i++)
  {
  table_col *tc = ta->ta_cols.ta_cols_val + i;
  entry_col *ec = eo->en_cols.en_cols_val + i;
  int len = ec->ec_value.ec_value_len;
  uschar *value = US ec->ec_value.ec_value_val;

  /* The value may be NULL for a zero-length field. Turn this into an
  empty string for consistency. Remove trailing whitespace and zero
  bytes. */

  if (value == NULL) value = US""; else
    while (len > 0 && (value[len-1] == 0 || isspace(value[len-1])))
      len--;

  /* Concatenate all fields if no specific one selected */

  if (field_name == NULL)
    {
    yield = string_cat(yield, &ssize, &offset,US  tc->tc_name,
      Ustrlen(tc->tc_name));
    yield = string_cat(yield, &ssize, &offset, US"=", 1);

    /* Quote the value if it contains spaces or is empty */

    if (value[0] == 0 || Ustrchr(value, ' ') != NULL)
      {
      int j;
      yield = string_cat(yield, &ssize, &offset, US"\"", 1);
      for (j = 0; j < len; j++)
        {
        if (value[j] == '\"' || value[j] == '\\')
          yield = string_cat(yield, &ssize, &offset, US"\\", 1);
        yield = string_cat(yield, &ssize, &offset, value+j, 1);
        }
      yield = string_cat(yield, &ssize, &offset, US"\"", 1);
      }
    else yield = string_cat(yield, &ssize, &offset, value, len);

    yield = string_cat(yield, &ssize, &offset, US" ", 1);
    }

  /* When the specified field is found, grab its data and finish */

  else if (Ustrcmp(field_name, tc->tc_name) == 0)
    {
    yield = string_copyn(value, len);
    goto NISPLUS_EXIT;
    }
  }

/* Error if a field name was specified and we didn't find it; if no
field name, ensure the concatenated data is zero-terminated. */

if (field_name != NULL)
  *errmsg = string_sprintf("NIS+ field %s not found for %s", field_name,
    query);
else
  {
  yield[offset] = 0;
  store_reset(yield + offset + 1);
  }

/* Restore the colon in the query, and free result store before
finishing. */

NISPLUS_EXIT:
if (field_name != NULL) field_name[-1] = ':';
if (nrt != NULL) nis_freeresult(nrt);
if (nre != NULL) nis_freeresult(nre);

if (yield != NULL)
  {
  *result = yield;
  return OK;
  }

return error_error;      /* FAIL or DEFER */
}
示例#11
0
void
nis_lerror (const nis_error status, const char *label)
{
  syslog (LOG_ERR, "%s: %s", label, nis_sperrno (status));
}
示例#12
0
void
nis_perror (const nis_error status, const char *label)
{
  fprintf (stderr, "%s: %s\n", label, nis_sperrno (status));
}