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Diffstat (limited to 'hesiod/nss_hesiod/hesiod-pwd.c')
-rw-r--r--hesiod/nss_hesiod/hesiod-pwd.c150
1 files changed, 150 insertions, 0 deletions
diff --git a/hesiod/nss_hesiod/hesiod-pwd.c b/hesiod/nss_hesiod/hesiod-pwd.c
new file mode 100644
index 0000000000..bb2a4c8785
--- /dev/null
+++ b/hesiod/nss_hesiod/hesiod-pwd.c
@@ -0,0 +1,150 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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 <bits/libc-lock.h>
+#include <errno.h>
+#include <hesiod.h>
+#include <nss.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Get the declaration of the parser function. */
+#define ENTNAME pwent
+#define STRUCTURE passwd
+#define EXTERN_PARSER
+#include <nss/nss_files/files-parse.c>
+
+/* Locks the static variables in this file. */
+__libc_lock_define_initialized (static, lock);
+
+static void *context = NULL;
+
+static enum nss_status
+internal_setpwent (void)
+{
+ if (!context)
+ {
+ if (hesiod_init (&context) == -1)
+ return NSS_STATUS_UNAVAIL;
+ }
+
+ return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_hesiod_setpwent (void)
+{
+ enum nss_status status;
+
+ __libc_lock_lock (lock);
+
+ status = internal_setpwent ();
+
+ __libc_lock_unlock (lock);
+
+ return status;
+}
+
+enum nss_status
+_nss_hesiod_endpwent (void)
+{
+ __libc_lock_lock (lock);
+
+ if (context)
+ {
+ hesiod_end (context);
+ context = NULL;
+ }
+
+ __libc_lock_unlock (lock);
+
+ return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+lookup (const char *name, const char *type, struct passwd *pwd,
+ char *buffer, size_t buflen)
+{
+ enum nss_status status;
+ struct parser_data *data = (void *) buffer;
+ size_t linebuflen;
+ char **list;
+ int parse_res;
+
+ status = internal_setpwent ();
+ if (status != NSS_STATUS_SUCCESS)
+ return status;
+
+ list = hesiod_resolve (context, name, type);
+ if (list == NULL)
+ return errno == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
+
+ linebuflen = buffer + buflen - data->linebuffer;
+ if (linebuflen < strlen (*list) + 1)
+ {
+ hesiod_free_list (context, list);
+ __set_errno (ERANGE);
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ strcpy (data->linebuffer, *list);
+ hesiod_free_list (context, list);
+
+ parse_res = _nss_files_parse_pwent (buffer, pwd, data, buflen);
+ if (parse_res < 1)
+ return parse_res == -1 ? NSS_STATUS_TRYAGAIN : NSS_STATUS_NOTFOUND;
+
+ return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_hesiod_getpwnam_r (const char *name, struct passwd *pwd,
+ char *buffer, size_t buflen)
+{
+ enum nss_status status;
+
+ __libc_lock_lock (lock);
+
+ status = lookup (name, "passwd", pwd, buffer, buflen);
+
+ __libc_lock_unlock (lock);
+
+ return status;
+}
+
+enum nss_status
+_nss_hesiod_getpwuid_r (uid_t uid, struct passwd *pwd,
+ char *buffer, size_t buflen)
+{
+ enum nss_status status = NSS_STATUS_UNAVAIL;
+ char uidstr[21]; /* We will probably never have a gid_t with more
+ than 64 bits. */
+
+ snprintf (uidstr, sizeof uidstr, "%d", uid);
+
+ __libc_lock_lock (lock);
+
+ status = lookup (uidstr, "uid", pwd, buffer, buflen);
+
+ __libc_lock_unlock (lock);
+
+ return status;
+}