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authorUlrich Drepper <drepper@redhat.com>1998-06-11 11:32:21 +0000
committerUlrich Drepper <drepper@redhat.com>1998-06-11 11:32:21 +0000
commit36ecfe5690660610f27d839f3cae31f417b33a04 (patch)
treeaaee5d534752df2acd878faa4c756126fa0c8ee6 /nss/nss_files
parentbbbad732292a78313a9f07a1240f824f72d1c32c (diff)
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Update.
1998-06-03 03:09 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/unix/sysv/linux/pread.c: Detect missing syscall, like poll(). * sysdeps/unix/sysv/linux/pread64.c: Likewise. * sysdeps/unix/sysv/linux/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/pwrite64.c: Likewise. 1998-06-03 03:09 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/Makefile: Use -G0 on the startup file; this makes it easier to undump emacs. * sysdeps/powerpc/bits/endian.h: Use more informative error message for when the endianness can't be determined. 1998-06-04 13:19 Geoff Keating <geoffk@ozemail.com.au> * nss/Makefile: Add files publickey database support. * nss/libnss_files.map: Export the required functions. * nss/nss_files/files-key.c: Implement it. * sunrpc/rpc/auth_des.h: Correct typos in comments.
Diffstat (limited to 'nss/nss_files')
-rw-r--r--nss/nss_files/files-key.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/nss/nss_files/files-key.c b/nss/nss_files/files-key.c
new file mode 100644
index 0000000..a3c1474
--- /dev/null
+++ b/nss/nss_files/files-key.c
@@ -0,0 +1,115 @@
+/* Public key file parser in nss_files module.
+ Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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 <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <netdb.h>
+#include <rpc/key_prot.h>
+#include "nsswitch.h"
+
+#define DATAFILE "/etc/publickey"
+
+/* Prototype for function in xcyrpt.c. */
+extern int xdecrypt (char *, char *);
+
+
+static enum nss_status
+search (const char *netname, char *result, int *errnop, int secret)
+{
+ FILE *stream;
+
+ stream = fopen (DATAFILE, "r");
+ if (stream == NULL)
+ return errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
+
+ for (;;)
+ {
+ char buffer[HEXKEYBYTES * 2 + KEYCHECKSUMSIZE + MAXNETNAMELEN + 17];
+ char *p;
+ char *save_ptr;
+
+ buffer[sizeof (buffer) - 1] = '\xff';
+ p = fgets (buffer, sizeof (buffer), stream);
+ if (p == NULL)
+ {
+ /* End of file or read error. */
+ *errnop = errno;
+ fclose (stream);
+ return NSS_STATUS_NOTFOUND;
+ }
+ else if (buffer[sizeof (buffer) - 1] != '\xff')
+ {
+ /* Invalid line in file? Skip remainder of line. */
+ if (buffer[sizeof (buffer) - 2] != '\0')
+ while (getc (stream) != '\n')
+ continue;
+ continue;
+ }
+
+ /* Parse line. */
+ p = __strtok_r (buffer, "# \t:\n", &save_ptr);
+ if (p == NULL) /* Skip empty and comment lines. */
+ continue;
+ if (strcmp (p, netname) != 0)
+ continue;
+
+ /* A hit! Find the field we want and return. */
+ p = __strtok_r (NULL, ":\n", &save_ptr);
+ if (p == NULL) /* malformed line? */
+ continue;
+ if (secret)
+ p = __strtok_r (NULL, ":\n", &save_ptr);
+ if (p == NULL) /* malformed line? */
+ continue;
+ strcpy (result, p);
+ return NSS_STATUS_SUCCESS;
+ }
+}
+
+enum nss_status
+_nss_files_getpublickey (const char *netname, char *pkey, int *errnop)
+{
+ return search (netname, pkey, errnop, 0);
+}
+
+enum nss_status
+_nss_files_getsecretkey (const char *netname, char *skey, char *passwd,
+ int *errnop)
+{
+ enum nss_status status;
+ char buf[HEXKEYBYTES + KEYCHECKSUMSIZE + 16];
+
+ skey[0] = 0;
+
+ status = search (netname, buf, errnop, 1);
+ if (status != NSS_STATUS_SUCCESS)
+ return status;
+
+ if (!xdecrypt (buf, passwd))
+ return NSS_STATUS_SUCCESS;
+
+ if (memcmp (buf, &(buf[HEXKEYBYTES]), KEYCHECKSUMSIZE) != 0)
+ return NSS_STATUS_SUCCESS;
+
+ buf[HEXKEYBYTES] = 0;
+ strcpy (skey, buf);
+
+ return NSS_STATUS_SUCCESS;
+}