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authorUlrich Drepper <drepper@redhat.com>1998-07-06 17:09:00 +0000
committerUlrich Drepper <drepper@redhat.com>1998-07-06 17:09:00 +0000
commit8eaaffdeedf5a34a68a785e62b181e4e5fc6cf43 (patch)
treed1c6fd49faf7237b3fa5c388885a049c46ffbad0 /nis/nss_nis
parentdd3c89f99cf911345abd1781be699a73f699aa00 (diff)
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Update.
1998-07-06 14:36 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * posix/Makefile (generated): Remove $(objpfx) from the names. 1998-07-05 Andreas Jaeger <aj@arthur.rhein-neckar.de> * stdio-common/test_rdwr.c: Use %Zu for size_t in printf format string. * libio/iofread_u.c: Include <stdio.h> for prototype. * libio/iofwrite_u.c: Likewise. 1998-07-06 Andreas Jaeger <aj@arthur.rhein-neckar.de> * db2/Versions: New file. 1998-07-04 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makefile (lib-noranlib): Don't depend on sysd-versions. ($(common-objpfx)sysd-versions): Remove rule. * Makerules ($(common-objpfx)sysd-versions): Define here instead. Pass name of Versions.def file to script and redirect output to target. Include it and make all generated version maps depend on it. * versions.awk: Print out variable definition containing all generated version maps. Print error messages to stderr. Remove temp file. 1998-07-04 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * posix/annexc.c (check_header): Terminate macro name before comparing. (get_null_defines): Allow builtin macros with parameters. (fmt, testfmt): Add -D_LIBC. * posix/Makefile: Remove bogus duplicate include directories from annexc test command. 1998-07-06 12:04 Ulrich Drepper <drepper@cygnus.com> * nis/nss_nis/nis-pwd.c (internal_nis_getpwent_r): Handle adjunct password scheme. (_nss_nis_getpwnam_r): Likewise. (_nss_nis_getpwuid_r): Likewise. 1998-07-05 Mark Kettenis <kettenis@phys.uva.nl> * libio/Versions: Move symbols whose source lives in stdio-common to ... * stdio-common/Versions: ... here. * stdio/Versions: Add missing symbols.
Diffstat (limited to 'nis/nss_nis')
-rw-r--r--nis/nss_nis/nis-pwd.c207
1 files changed, 178 insertions, 29 deletions
diff --git a/nis/nss_nis/nis-pwd.c b/nis/nss_nis/nis-pwd.c
index 296526d..b700915 100644
--- a/nis/nss_nis/nis-pwd.c
+++ b/nis/nss_nis/nis-pwd.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
@@ -82,8 +82,8 @@ internal_nis_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen,
int *errnop)
{
struct parser_data *data = (void *) buffer;
- char *domain, *result, *outkey;
- int len, keylen, parse_res;
+ char *domain;
+ int parse_res;
if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
@@ -92,7 +92,9 @@ internal_nis_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen,
do
{
enum nss_status retval;
- char *p;
+ char *result, *outkey, *result2, *p;
+ int len, keylen, len2;
+ size_t namelen;
if (new_start)
retval = yperr2nss (yp_first (domain, "passwd.byname",
@@ -109,15 +111,63 @@ internal_nis_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen,
return retval;
}
- if ((size_t) (len + 1) > buflen)
- {
- free (result);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
+ /* Check for adjunct style secret passwords. They can be
+ recognized by a password starting with "##". */
+ p = strchr (result, ':');
+ if (p != NULL /* This better should be true in all cases. */
+ && p[1] == '#' && p[2] == '#'
+ && (namelen = p - result,
+ yp_match (domain, "passwd.adjunct.byname", result, namelen,
+ &result2, &len2)) == YPERR_SUCCESS)
+ {
+ /* We found a passwd.adjunct entry. Merge encrypted
+ password therein into original result. */
+ char *encrypted = strchr (result2, ':');
+ char *endp;
+ size_t restlen;
+
+ if (encrypted != NULL
+ || (endp = strchr (++encrypted, ':')) == NULL
+ || (p = strchr (p + 1, ':')) == NULL)
+ {
+ /* Invalid format of the entry. This never should happen
+ unless the data from which the NIS table is generated is
+ wrong. We simply ignore it. */
+ free (result2);
+ goto non_adjunct;
+ }
+
+ restlen = len - (p - result);
+ if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
+ {
+ free (result2);
+ free (result);
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ __mempcpy (__mempcpy (__mempcpy (__mempcpy (buffer, result, namelen),
+ ":", 1),
+ encrypted, endp - encrypted),
+ p, restlen + 1);
+ p = buffer;
+
+ free (result2);
+ }
+ else
+ {
+ non_adjunct:
+ if ((size_t) (len + 1) > buflen)
+ {
+ free (result);
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ p = strncpy (buffer, result, len);
+ buffer[len] = '\0';
+ }
- p = strncpy (buffer, result, len);
- buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);
@@ -161,8 +211,9 @@ _nss_nis_getpwnam_r (const char *name, struct passwd *pwd,
{
struct parser_data *data = (void *) buffer;
enum nss_status retval;
- char *domain, *result, *p;
- int len, parse_res;
+ char *domain, *result, *result2, *p;
+ int len, len2, parse_res;
+ size_t namelen;
if (name == NULL)
{
@@ -173,8 +224,10 @@ _nss_nis_getpwnam_r (const char *name, struct passwd *pwd,
if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
+ namelen = strlen (name);
+
retval = yperr2nss (yp_match (domain, "passwd.byname", name,
- strlen (name), &result, &len));
+ namelen, &result, &len));
if (retval != NSS_STATUS_SUCCESS)
{
@@ -183,15 +236,62 @@ _nss_nis_getpwnam_r (const char *name, struct passwd *pwd,
return retval;
}
- if ((size_t) (len + 1) > buflen)
+ /* Check for adjunct style secret passwords. They can be recognized
+ by a password starting with "##". */
+ p = strchr (result, ':');
+ if (p != NULL /* This better should be true in all cases. */
+ && p[1] == '#' && p[2] == '#'
+ && yp_match (domain, "passwd.adjunct.byname", name, namelen,
+ &result2, &len2) == YPERR_SUCCESS)
{
- free (result);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
+ /* We found a passwd.adjunct entry. Merge encrypted password
+ therein into original result. */
+ char *encrypted = strchr (result2, ':');
+ char *endp;
+ size_t restlen;
+
+ if (encrypted != NULL
+ || (endp = strchr (++encrypted, ':')) == NULL
+ || (p = strchr (p + 1, ':')) == NULL)
+ {
+ /* Invalid format of the entry. This never should happen
+ unless the data from which the NIS table is generated is
+ wrong. We simply ignore it. */
+ free (result2);
+ goto non_adjunct;
+ }
+
+ restlen = len - (p - result);
+ if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
+ {
+ free (result2);
+ free (result);
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ __mempcpy (__mempcpy (__mempcpy (__mempcpy (buffer, name, namelen),
+ ":", 1),
+ encrypted, endp - encrypted),
+ p, restlen + 1);
+ p = buffer;
+
+ free (result2);
+ }
+ else
+ {
+ non_adjunct:
+ if ((size_t) (len + 1) > buflen)
+ {
+ free (result);
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ p = strncpy (buffer, result, len);
+ buffer[len] = '\0';
}
- p = strncpy (buffer, result, len);
- buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);
@@ -214,9 +314,10 @@ _nss_nis_getpwuid_r (uid_t uid, struct passwd *pwd,
{
struct parser_data *data = (void *) buffer;
enum nss_status retval;
- char *domain, *result, *p;
- int len, nlen, parse_res;
+ char *domain, *result, *p, *result2;
+ int len, nlen, parse_res, len2;
char buf[32];
+ size_t namelen;
if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
@@ -233,15 +334,63 @@ _nss_nis_getpwuid_r (uid_t uid, struct passwd *pwd,
return retval;
}
- if ((size_t) (len + 1) > buflen)
+ /* Check for adjunct style secret passwords. They can be recognized
+ by a password starting with "##". */
+ p = strchr (result, ':');
+ if (p != NULL /* This better should be true in all cases. */
+ && p[1] == '#' && p[2] == '#'
+ && (namelen = p - result,
+ yp_match (domain, "passwd.adjunct.byname", result, namelen,
+ &result2, &len2)) == YPERR_SUCCESS)
{
- free (result);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
+ /* We found a passwd.adjunct entry. Merge encrypted password
+ therein into original result. */
+ char *encrypted = strchr (result2, ':');
+ char *endp;
+ size_t restlen;
+
+ if (encrypted != NULL
+ || (endp = strchr (++encrypted, ':')) == NULL
+ || (p = strchr (p + 1, ':')) == NULL)
+ {
+ /* Invalid format of the entry. This never should happen
+ unless the data from which the NIS table is generated is
+ wrong. We simply ignore it. */
+ free (result2);
+ goto non_adjunct;
+ }
+
+ restlen = len - (p - result);
+ if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
+ {
+ free (result2);
+ free (result);
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ __mempcpy (__mempcpy (__mempcpy (__mempcpy (buffer, result, namelen),
+ ":", 1),
+ encrypted, endp - encrypted),
+ p, restlen + 1);
+ p = buffer;
+
+ free (result2);
+ }
+ else
+ {
+ non_adjunct:
+ if ((size_t) (len + 1) > buflen)
+ {
+ free (result);
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ p = strncpy (buffer, result, len);
+ buffer[len] = '\0';
}
- p = strncpy (buffer, result, len);
- buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);