| /* Copyright (c) 1997 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public License as |
| published by the Free Software Foundation; either version 2 of the |
| License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with the GNU C Library; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include <errno.h> |
| #include <string.h> |
| #include <rpcsvc/nis.h> |
| |
| nis_name |
| nis_leaf_of (const_nis_name name) |
| { |
| static char result[NIS_MAXNAMELEN + 1]; |
| |
| return nis_leaf_of_r (name, result, NIS_MAXNAMELEN); |
| } |
| |
| nis_name |
| nis_leaf_of_r (const_nis_name name, char *buffer, size_t buflen) |
| { |
| size_t i = 0; |
| |
| buffer[0] = '\0'; |
| |
| while (name[i] != '.' && name[i] != '\0') |
| i++; |
| |
| if (i > buflen - 1) |
| { |
| errno = ERANGE; |
| return NULL; |
| } |
| |
| if (i > 0) |
| { |
| if ((size_t)i >= buflen) |
| { |
| errno = ERANGE; |
| return NULL; |
| } |
| strncpy (buffer, name, i); |
| buffer[i] = 0; |
| } |
| |
| return buffer; |
| } |
| |
| nis_name |
| nis_name_of (const_nis_name name) |
| { |
| static char result[NIS_MAXNAMELEN + 1]; |
| |
| return nis_name_of_r (name, result, NIS_MAXNAMELEN); |
| } |
| |
| nis_name |
| nis_name_of_r (const_nis_name name, char *buffer, size_t buflen) |
| { |
| char *local_domain; |
| int diff; |
| |
| local_domain = nis_local_directory (); |
| |
| diff = strlen (name) - strlen (local_domain); |
| if (diff <= 0) |
| return NULL; |
| |
| if (strcmp (&name[diff], local_domain) != 0) |
| return NULL; |
| |
| if ((size_t) diff >= buflen) |
| { |
| errno = ERANGE; |
| return NULL; |
| } |
| memcpy (buffer, name, diff - 1); |
| buffer[diff - 1] = '\0'; |
| |
| if (diff - 1 == 0) |
| return NULL; |
| |
| return buffer; |
| } |
| |
| static int |
| count_dots (const_nis_name str) |
| { |
| int count = 0; |
| size_t i; |
| |
| for (i = 0; i < strlen (str); ++i) |
| if (str[i] == '.') |
| ++count; |
| |
| return count; |
| } |
| |
| nis_name * |
| nis_getnames (const_nis_name name) |
| { |
| nis_name *getnames = NULL; |
| char local_domain[NIS_MAXNAMELEN + 1]; |
| char *path, *cp; |
| int count, pos, have_point; |
| |
| strncpy (local_domain, nis_local_directory (), NIS_MAXNAMELEN); |
| local_domain[NIS_MAXNAMELEN] = '\0'; |
| |
| count = 1; |
| if ((getnames = malloc ((count + 1) * sizeof (char *))) == NULL) |
| return NULL; |
| |
| /* Do we have a fully qualified NIS+ name ? If yes, give it back */ |
| if (name[strlen (name) - 1] == '.') |
| { |
| if ((getnames[0] = strdup (name)) == NULL) |
| { |
| free (getnames); |
| return NULL; |
| } |
| getnames[1] = NULL; |
| |
| return getnames; |
| } |
| |
| /* Get the search path, where we have to search "name" */ |
| path = getenv ("NIS_PATH"); |
| if (path == NULL) |
| path = strdupa ("$"); |
| else |
| path = strdupa (path); |
| |
| have_point = (strchr (name, '.') != NULL); |
| |
| pos = 0; |
| |
| cp = strtok (path, ":"); |
| while (cp) |
| { |
| if (strcmp (cp, "$") == 0) |
| { |
| char *cptr = local_domain; |
| char *tmp; |
| |
| while ((have_point && *cptr != '\0') || (count_dots (cptr) >= 2)) |
| { |
| if (pos >= count) |
| { |
| count += 5; |
| getnames = realloc (getnames, (count + 1) * sizeof (char *)); |
| } |
| tmp = malloc (strlen (cptr) + strlen (local_domain) + |
| strlen (name) + 2); |
| if (tmp == NULL) |
| return NULL; |
| |
| getnames[pos] = tmp; |
| tmp = stpcpy (tmp, name); |
| *tmp++ = '.'; |
| if (cptr[1] != '\0') |
| stpcpy (tmp, cptr); |
| else |
| ++cptr; |
| |
| ++pos; |
| |
| while (*cptr != '.' && *cptr != '\0') |
| ++cptr; |
| if (cptr[0] != '\0' && cptr[1] != '\0') |
| /* If we have only ".", don't remove the "." */ |
| ++cptr; |
| } |
| } |
| else |
| { |
| char *tmp; |
| |
| if (cp[strlen (cp) - 1] == '$') |
| { |
| char *p; |
| |
| tmp = malloc (strlen (cp) + strlen (local_domain) + |
| strlen (name) + 2); |
| if (tmp == NULL) |
| return NULL; |
| |
| p = stpcpy (tmp, name); |
| *p++ = '.'; |
| p = stpcpy (p, cp); |
| --p; |
| if (p[-1] != '.') |
| *p++ = '.'; |
| stpcpy (p, local_domain); |
| } |
| else |
| { |
| char *p; |
| |
| tmp = malloc (strlen (cp) + strlen (name) + 2); |
| if (tmp == NULL) |
| return NULL; |
| |
| p = stpcpy (tmp, name); |
| *p++ = '.'; |
| stpcpy (p, cp); |
| } |
| |
| if (pos >= count) |
| { |
| count += 5; |
| getnames = realloc (getnames, (count + 1) * sizeof (char *)); |
| if (getnames == NULL) |
| return NULL; |
| } |
| getnames[pos] = tmp; |
| ++pos; |
| } |
| cp = strtok (NULL, ":"); |
| } |
| |
| getnames[pos] = NULL; |
| |
| return getnames; |
| } |
| |
| void |
| nis_freenames (nis_name *names) |
| { |
| int i = 0; |
| |
| while (names[i] != NULL) |
| { |
| free (names[i]); |
| ++i; |
| } |
| |
| free (names); |
| } |
| |
| name_pos |
| nis_dir_cmp (const_nis_name n1, const_nis_name n2) |
| { |
| int len1, len2; |
| |
| len1 = strlen (n1); |
| len2 = strlen (n2); |
| |
| if (len1 == len2) |
| { |
| if (strcmp (n1, n2) == 0) |
| return SAME_NAME; |
| else |
| return NOT_SEQUENTIAL; |
| } |
| |
| if (len1 < len2) |
| { |
| if (n2[len2 - len1 - 1] != '.') |
| return NOT_SEQUENTIAL; |
| else if (strcmp (&n2[len2 - len1], n1) == 0) |
| return HIGHER_NAME; |
| else |
| return NOT_SEQUENTIAL; |
| } |
| else |
| { |
| if (n1[len1 - len2 - 1] != '.') |
| return NOT_SEQUENTIAL; |
| else if (strcmp (&n1[len1 - len2], n2) == 0) |
| return LOWER_NAME; |
| else |
| return NOT_SEQUENTIAL; |
| |
| } |
| } |
| |
| void |
| nis_destroy_object (nis_object *obj) |
| { |
| nis_free_object (obj); |
| } |