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Make getpwnam_alloc() static to lib/username.c, and ensure all username lookups go

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through Get_Pwnam_alloc(), which is the correct wrapper function. We were using
it *some* of the time anyway, so this just makes us properly consistent.

Jeremy.

Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Oct 20 16:02:12 UTC 2010 on sn-devel-104
This commit is contained in:
Jeremy Allison 2010-10-20 08:16:23 -07:00
parent ab01d6139f
commit e1cfca1e2e
17 changed files with 97 additions and 117 deletions
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2
source3/Makefile.in
View File

@ -453,7 +453,7 @@ LIB_OBJ = $(LIBSAMBAUTIL_OBJ) $(UTIL_OBJ) $(CRYPTO_OBJ) \
lib/system.o lib/sendfile.o lib/recvfile.o lib/time.o \
lib/username.o \
../libds/common/flag_mapping.o \
lib/util_pw.o lib/access.o lib/smbrun.o \
lib/access.o lib/smbrun.o \
lib/bitmap.o lib/dprintf.o $(UTIL_REG_OBJ) \
lib/wins_srv.o \
lib/util_str.o lib/clobber.o lib/util_sid.o \

4
source3/auth/auth_util.c
View File

@ -641,7 +641,7 @@ static NTSTATUS get_guest_info3(TALLOC_CTX *mem_ctx,
struct passwd *pwd;
const char *tmp;
pwd = getpwnam_alloc(mem_ctx, guest_account);
pwd = Get_Pwnam_alloc(mem_ctx, guest_account);
if (pwd == NULL) {
DEBUG(0,("SamInfo3_for_guest: Unable to locate guest "
"account [%s]!\n", guest_account));
@ -793,7 +793,7 @@ NTSTATUS make_serverinfo_from_username(TALLOC_CTX *mem_ctx,
struct passwd *pwd;
NTSTATUS status;
pwd = getpwnam_alloc(talloc_tos(), username);
pwd = Get_Pwnam_alloc(talloc_tos(), username);
if (pwd == NULL) {
return NT_STATUS_NO_SUCH_USER;
}

2
source3/auth/server_info_sam.c
View File

@ -70,7 +70,7 @@ NTSTATUS make_server_info_sam(struct auth_serversupplied_info **server_info,
return NT_STATUS_NO_MEMORY;
}
if ( !(pwd = getpwnam_alloc(result, username)) ) {
if ( !(pwd = Get_Pwnam_alloc(result, username)) ) {
DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
pdb_get_username(sampass)));
TALLOC_FREE(result);

6
source3/auth/token_util.c
View File

@ -757,14 +757,14 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
* about the mapping of guest sid to lp_guestaccount()
* username and will return the unix_pw info for a guest
* user. Use it if it's there, else lookup the *uid details
* using getpwnam_alloc(). See bug #6291 for details. JRA.
* using Get_Pwnam_alloc(). See bug #6291 for details. JRA.
*/
/* We must always assign the *uid. */
if (sam_acct->unix_pw == NULL) {
struct passwd *pwd = getpwnam_alloc(sam_acct, *found_username );
struct passwd *pwd = Get_Pwnam_alloc(sam_acct, *found_username );
if (!pwd) {
DEBUG(10, ("getpwnam_alloc failed for %s\n",
DEBUG(10, ("Get_Pwnam_alloc failed for %s\n",
*found_username));
result = NT_STATUS_NO_SUCH_USER;
goto done;

10
source3/include/proto.h
View File

@ -1033,6 +1033,9 @@ bool nt_time_is_set(const NTTIME *nt);
/* The following definitions come from lib/username.c */
struct passwd *tcopy_passwd(TALLOC_CTX *mem_ctx, const struct passwd *from) ;
void flush_pwnam_cache(void);
struct passwd *getpwuid_alloc(TALLOC_CTX *mem_ctx, uid_t uid) ;
char *get_user_home_dir(TALLOC_CTX *mem_ctx, const char *user);
struct passwd *Get_Pwnam_alloc(TALLOC_CTX *mem_ctx, const char *user);
@ -1221,13 +1224,6 @@ NTSTATUS merge_nt_token(TALLOC_CTX *mem_ctx,
struct security_token **token_out);
bool token_sid_in_ace(const struct security_token *token, const struct security_ace *ace);
/* The following definitions come from lib/util_pw.c */
struct passwd *tcopy_passwd(TALLOC_CTX *mem_ctx, const struct passwd *from) ;
void flush_pwnam_cache(void);
struct passwd *getpwnam_alloc(TALLOC_CTX *mem_ctx, const char *name);
struct passwd *getpwuid_alloc(TALLOC_CTX *mem_ctx, uid_t uid) ;
/* The following definitions come from ..libcli/registry/util_reg.c */
const char *str_regtype(int type);

72
source3/lib/username.c
View File

@ -3,6 +3,7 @@
Username handling
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Jeremy Allison 1997-2001.
Copyright (C) Andrew Bartlett 2002
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -19,6 +20,7 @@
*/
#include "includes.h"
#include "memcache.h"
/* internal functions */
static struct passwd *uname_string_combinations(char *s, TALLOC_CTX *mem_ctx,
@ -28,6 +30,76 @@ static struct passwd *uname_string_combinations2(char *s, TALLOC_CTX *mem_ctx, i
struct passwd * (*fn) (TALLOC_CTX *mem_ctx, const char *),
int N);
static struct passwd *getpwnam_alloc(TALLOC_CTX *mem_ctx, const char *name)
{
struct passwd *pw, *for_cache;
pw = (struct passwd *)memcache_lookup_talloc(
NULL, GETPWNAM_CACHE, data_blob_string_const_null(name));
if (pw != NULL) {
return tcopy_passwd(mem_ctx, pw);
}
pw = sys_getpwnam(name);
if (pw == NULL) {
return NULL;
}
for_cache = tcopy_passwd(talloc_tos(), pw);
if (for_cache == NULL) {
return NULL;
}
memcache_add_talloc(NULL, GETPWNAM_CACHE,
data_blob_string_const_null(name), &for_cache);
return tcopy_passwd(mem_ctx, pw);
}
/****************************************************************************
talloc copy a struct passwd.
****************************************************************************/
struct passwd *tcopy_passwd(TALLOC_CTX *mem_ctx, const struct passwd *from)
{
struct passwd *ret = TALLOC_P(mem_ctx, struct passwd);
if (!ret) {
return NULL;
}
ret->pw_name = talloc_strdup(ret, from->pw_name);
ret->pw_passwd = talloc_strdup(ret, from->pw_passwd);
ret->pw_uid = from->pw_uid;
ret->pw_gid = from->pw_gid;
ret->pw_gecos = talloc_strdup(ret, from->pw_gecos);
ret->pw_dir = talloc_strdup(ret, from->pw_dir);
ret->pw_shell = talloc_strdup(ret, from->pw_shell);
return ret;
}
/****************************************************************************
Flush all cached passwd structs.
****************************************************************************/
void flush_pwnam_cache(void)
{
memcache_flush(NULL, GETPWNAM_CACHE);
}
/****************************************************************************
talloc'ed version of getpwuid.
****************************************************************************/
struct passwd *getpwuid_alloc(TALLOC_CTX *mem_ctx, uid_t uid)
{
struct passwd *temp = sys_getpwuid(uid);
if (!temp) {
return NULL;
}
return tcopy_passwd(mem_ctx, temp);
}
/****************************************************************************
Get a users home directory.
****************************************************************************/

2
source3/lib/util.c
View File

@ -1306,7 +1306,7 @@ uid_t nametouid(const char *name)
char *p;
uid_t u;
pass = getpwnam_alloc(talloc_tos(), name);
pass = Get_Pwnam_alloc(talloc_tos(), name);
if (pass) {
u = pass->pw_uid;
TALLOC_FREE(pass);

88
source3/lib/util_pw.c
View File

@ -1,88 +0,0 @@
/*
Unix SMB/CIFS implementation.
Safe versions of getpw* calls
Copyright (C) Andrew Bartlett 2002
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "memcache.h"
struct passwd *tcopy_passwd(TALLOC_CTX *mem_ctx, const struct passwd *from)
{
struct passwd *ret = TALLOC_P(mem_ctx, struct passwd);
if (!ret) {
return NULL;
}
ret->pw_name = talloc_strdup(ret, from->pw_name);
ret->pw_passwd = talloc_strdup(ret, from->pw_passwd);
ret->pw_uid = from->pw_uid;
ret->pw_gid = from->pw_gid;
ret->pw_gecos = talloc_strdup(ret, from->pw_gecos);
ret->pw_dir = talloc_strdup(ret, from->pw_dir);
ret->pw_shell = talloc_strdup(ret, from->pw_shell);
return ret;
}
void flush_pwnam_cache(void)
{
memcache_flush(NULL, GETPWNAM_CACHE);
}
struct passwd *getpwnam_alloc(TALLOC_CTX *mem_ctx, const char *name)
{
struct passwd *pw, *for_cache;
pw = (struct passwd *)memcache_lookup_talloc(
NULL, GETPWNAM_CACHE, data_blob_string_const_null(name));
if (pw != NULL) {
return tcopy_passwd(mem_ctx, pw);
}
pw = sys_getpwnam(name);
if (pw == NULL) {
return NULL;
}
for_cache = tcopy_passwd(talloc_tos(), pw);
if (for_cache == NULL) {
return NULL;
}
memcache_add_talloc(NULL, GETPWNAM_CACHE,
data_blob_string_const_null(name), &for_cache);
return tcopy_passwd(mem_ctx, pw);
}
struct passwd *getpwuid_alloc(TALLOC_CTX *mem_ctx, uid_t uid)
{
struct passwd *temp;
temp = sys_getpwuid(uid);
if (!temp) {
#if 0
if (errno == ENOMEM) {
/* what now? */
}
#endif
return NULL;
}
return tcopy_passwd(mem_ctx, temp);
}

4
source3/passdb/pdb_interface.c
View File

@ -352,7 +352,7 @@ static bool guest_user_info( struct samu *user )
NTSTATUS result;
const char *guestname = lp_guestaccount();
pwd = getpwnam_alloc(talloc_tos(), guestname);
pwd = Get_Pwnam_alloc(talloc_tos(), guestname);
if (pwd == NULL) {
DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n",
guestname));
@ -1546,7 +1546,7 @@ static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods,
/* Ignore the primary group SID. Honor the real Unix primary group.
The primary group SID is only of real use to Windows clients */
if ( !(pw = getpwnam_alloc(mem_ctx, username)) ) {
if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) {
return NT_STATUS_NO_SUCH_USER;
}

4
source3/passdb/pdb_smbpasswd.c
View File

@ -1198,9 +1198,9 @@ static bool build_smb_pass (struct smb_passwd *smb_pw, const struct samu *sampas
/* If the user specified a RID, make sure its able to be both stored and retreived */
if (rid == DOMAIN_RID_GUEST) {
struct passwd *passwd = getpwnam_alloc(NULL, lp_guestaccount());
struct passwd *passwd = Get_Pwnam_alloc(NULL, lp_guestaccount());
if (!passwd) {
DEBUG(0, ("Could not find guest account via getpwnam()! (%s)\n", lp_guestaccount()));
DEBUG(0, ("Could not find guest account via Get_Pwnam_alloc()! (%s)\n", lp_guestaccount()));
return False;
}
smb_pw->smb_userid=passwd->pw_uid;

2
source3/passdb/util_unixsids.c
View File

@ -64,7 +64,7 @@ bool lookup_unix_user_name(const char *name, struct dom_sid *sid)
struct passwd *pwd;
bool ret;
pwd = getpwnam_alloc(talloc_tos(), name);
pwd = Get_Pwnam_alloc(talloc_tos(), name);
if (pwd == NULL) {
return False;
}

2
source3/smbd/password.c
View File

@ -222,7 +222,7 @@ int register_homes_share(const char *username)
return result;
}
pwd = getpwnam_alloc(talloc_tos(), username);
pwd = Get_Pwnam_alloc(talloc_tos(), username);
if ((pwd == NULL) || (pwd->pw_dir[0] == '\0')) {
DEBUG(3, ("No home directory defined for user '%s'\n",

2
source3/smbd/uid.c
View File

@ -33,7 +33,7 @@ bool change_to_guest(void)
{
struct passwd *pass;
pass = getpwnam_alloc(talloc_tos(), lp_guestaccount());
pass = Get_Pwnam_alloc(talloc_tos(), lp_guestaccount());
if (!pass) {
return false;
}

2
source3/torture/pdbtest.c
View File

@ -278,7 +278,7 @@ int main(int argc, char **argv)
exit(1);
}
if ((pwd = getpwnam_alloc(ctx, unix_user)) == NULL) {
if ((pwd = Get_Pwnam_alloc(ctx, unix_user)) == NULL) {
fprintf(stderr, "Error getting user information for %s\n", unix_user);
exit(1);
}

4
source3/utils/net_sam.c
View File

@ -1856,7 +1856,7 @@ doma_done:
sid_compose(&sid, get_global_sam_sid(), DOMAIN_RID_GUEST);
pwd = getpwnam_alloc(tc, lp_guestaccount());
pwd = Get_Pwnam_alloc(tc, lp_guestaccount());
if (!pwd) {
if (domusers_gid == -1) {
@ -1927,7 +1927,7 @@ doma_done:
d_printf(_("Checking Guest's group.\n"));
pwd = getpwnam_alloc(tc, lp_guestaccount());
pwd = Get_Pwnam_alloc(tc, lp_guestaccount());
if (!pwd) {
d_fprintf(stderr,
_("Failed to find just created Guest account!\n"

4
source3/web/cgi.c
View File

@ -314,7 +314,7 @@ static void cgi_web_auth(void)
exit(0);
}
pwd = getpwnam_alloc(talloc_tos(), user);
pwd = Get_Pwnam_alloc(talloc_tos(), user);
if (!pwd) {
printf("%sCannot find user %s<br>%s\n", head, user, tail);
exit(0);
@ -369,7 +369,7 @@ static bool cgi_handle_authorization(char *line)
* Try and get the user from the UNIX password file.
*/
pass = getpwnam_alloc(talloc_tos(), user);
pass = Get_Pwnam_alloc(talloc_tos(), user);
rhost = client_name(1);
if (strequal(rhost,"UNKNOWN"))

2
source3/wscript_build
View File

@ -178,7 +178,7 @@ LIB_SRC = '''${LIBSAMBAUTIL_SRC} ${UTIL_SRC}
lib/system.c lib/sendfile.c lib/recvfile.c lib/time.c
lib/username.c
../libds/common/flag_mapping.c
lib/util_pw.c lib/access.c lib/smbrun.c
lib/access.c lib/smbrun.c
lib/bitmap.c lib/dprintf.c ${UTIL_REG_SRC}
lib/wins_srv.c
lib/util_str.c lib/clobber.c lib/util_sid.c