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/*
SSSD
sss_userdel
Copyright (C) Jakub Hrozek <jhrozek@redhat.com> 2009
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 <stdio.h>
#include <stdlib.h>
#include <talloc.h>
#include <popt.h>
#include "db/sysdb.h"
#include "util/util.h"
#include "tools/tools_util.h"
struct user_del_ctx {
struct sysdb_req *sysreq;
sysdb_callback_t next_fn;
const char *username;
uid_t uid;
struct sss_domain_info *domain;
struct tools_ctx *ctx;
int error;
bool done;
};
struct fetch_user {
uid_t uid;
int error;
bool done;
};
static void getpwnam_callback(void *ptr, int error, struct ldb_result *res)
{
struct fetch_user *data = talloc_get_type(ptr, struct fetch_user);
data->done = true;
if (error) {
data->error = error;
return;
}
switch (res->count) {
case 0:
data->error = ENOENT;
break;
case 1:
data->uid = ldb_msg_find_attr_as_uint(res->msgs[0], SYSDB_UIDNUM, 0);
break;
default:
data->error = EFAULT;
break;
}
}
/* sysdb callback */
static void userdel_done(void *pvt, int error, struct ldb_result *ignore)
{
struct user_del_ctx *data = talloc_get_type(pvt, struct user_del_ctx);
data->done = true;
sysdb_transaction_done(data->sysreq, error);
if (error)
data->error = error;
}
/* sysdb_req_fn_t */
static void user_del(struct sysdb_req *req, void *pvt)
{
struct user_del_ctx *user_ctx;
int ret;
user_ctx = talloc_get_type(pvt, struct user_del_ctx);
user_ctx->sysreq = req;
ret = sysdb_delete_user_by_uid(req, "LOCAL",
user_ctx->uid,
userdel_done,
user_ctx);
if(ret != EOK)
userdel_done(user_ctx, ret, NULL);
}
int main(int argc, const char **argv)
{
int ret = EXIT_SUCCESS;
struct user_del_ctx *user_ctx = NULL;
struct tools_ctx *ctx = NULL;
struct fetch_user *fetch_ctx = NULL;
poptContext pc;
struct poptOption long_options[] = {
POPT_AUTOHELP
POPT_TABLEEND
};
debug_prg_name = argv[0];
ret = setup_db(&ctx);
if(ret != EOK) {
DEBUG(0, ("Could not set up database\n"));
ret = EXIT_FAILURE;
goto fini;
}
user_ctx = talloc_zero(NULL, struct user_del_ctx);
if (user_ctx == NULL) {
DEBUG(0, ("Could not allocate memory for user_ctx context\n"));
return ENOMEM;
}
user_ctx->ctx = ctx;
fetch_ctx = talloc_zero(ctx, struct fetch_user);
if (fetch_ctx == NULL) {
DEBUG(0, ("Could not allocate memory for fetch_user context\n"));
return ENOMEM;
}
/* parse user_ctx */
pc = poptGetContext(NULL, argc, argv, long_options, 0);
poptSetOtherOptionHelp(pc, "USERNAME");
if((ret = poptGetNextOpt(pc)) < -1) {
usage(pc, poptStrerror(ret));
ret = EXIT_FAILURE;
goto fini;
}
user_ctx->username = poptGetArg(pc);
if(user_ctx->username == NULL) {
usage(pc, "Specify user to delete\n");
ret = EXIT_FAILURE;
goto fini;
}
/* arguments processed, go on to actual work */
user_ctx->domain = btreemap_get_value(ctx->domains, "LOCAL");
if (user_ctx->domain == NULL) {
DEBUG(0, ("Could not set default values\n"));
ret = EXIT_FAILURE;
goto fini;
}
/* Look up uid for given username */
ret = sysdb_getpwnam(fetch_ctx, ctx->sysdb,
"LOCAL",
user_ctx->username,
false,
getpwnam_callback,
fetch_ctx);
if(ret != EOK) {
DEBUG(1, ("sysdb_getpwnam failed: %d\n", ret));
ret = EXIT_FAILURE;
goto fini;
}
while (!fetch_ctx->done) {
tevent_loop_once(ctx->ev);
}
if(fetch_ctx->error) {
ret = fetch_ctx->error;
switch(ret) {
case ENOENT:
DEBUG(0, ("No such user: %s\n", user_ctx->username));
break;
default:
DEBUG(0, ("sysdb_getpwnam failed: (%d) [%s]\n",
ret, strerror(ret)));
break;
}
goto fini;
}
user_ctx->uid = fetch_ctx->uid;
/* userdel */
ret = sysdb_transaction(ctx, ctx->sysdb, user_del, user_ctx);
if(ret != EOK) {
DEBUG(1, ("Could not start transaction (%d)[%s]\n", ret, strerror(ret)));
ret = EXIT_FAILURE;
goto fini;
}
while (!user_ctx->done) {
tevent_loop_once(ctx->ev);
}
if (user_ctx->error) {
ret = user_ctx->error;
DEBUG(0, ("Operation failed (%d)[%s]\n", ret, strerror(ret)));
ret = EXIT_FAILURE;
goto fini;
}
ret = EXIT_SUCCESS;
fini:
talloc_free(ctx);
talloc_free(user_ctx);
poptFreeContext(pc);
exit(ret);
}
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