_PUBLIC_ NSS_STATUS _nss_winbind_getpwuid_r(uid_t uid, struct passwd *result,
char *buffer, size_t buflen, int *errnop)
{
NSS_STATUS ret;
static struct winbindd_response response;
struct winbindd_request request;
static int keep_response=0;
#ifdef DEBUG_NSS
fprintf(stderr, "[%5d]: getpwuid %d\n", getpid(), (unsigned int)uid);
#endif
/* If our static buffer needs to be expanded we are called again */
if (!keep_response) {
/* Call for the first time */
ZERO_STRUCT(response);
ZERO_STRUCT(request);
request.data.uid = uid;
ret = winbindd_request(WINBINDD_GETPWUID, &request, &response);
if (ret == NSS_STATUS_SUCCESS) {
ret = fill_pwent(result, &response.data.pw,
&buffer, &buflen);
if (ret == NSS_STATUS_TRYAGAIN) {
keep_response = True;
*errnop = errno = ERANGE;
goto done;
}
}
} else {
/* We've been called again */
ret = fill_pwent(result, &response.data.pw, &buffer, &buflen);
if (ret == NSS_STATUS_TRYAGAIN) {
keep_response = True;
*errnop = errno = ERANGE;
goto done;
}
keep_response = False;
*errnop = errno = 0;
}
free_response(&response);
done:
#ifdef DEBUG_NSS
fprintf(stderr, "[%5d]: getpwuid %d returns %s (%d)\n", getpid(),
(unsigned int)uid, nss_err_str(ret), ret);
#endif
return ret;
}
NSS_STATUS
_nss_winbind_getpwnam_r(const char *name, struct passwd *result, char *buffer,
size_t buflen, int *errnop)
{
NSS_STATUS ret;
static struct winbindd_response response;
struct winbindd_request request;
static int keep_response;
#ifdef DEBUG_NSS
fprintf(stderr, "[%5d]: getpwnam %s\n", getpid(), name);
#endif
/* If our static buffer needs to be expanded we are called again */
if (!keep_response) {
/* Call for the first time */
ZERO_STRUCT(response);
ZERO_STRUCT(request);
strncpy(request.data.username, name,
sizeof(request.data.username) - 1);
request.data.username
[sizeof(request.data.username) - 1] = '\0';
ret = winbindd_request(WINBINDD_GETPWNAM, &request, &response);
if (ret == NSS_STATUS_SUCCESS) {
ret = fill_pwent(result, &response.data.pw, &buffer,
&buflen);
if (ret == NSS_STATUS_TRYAGAIN) {
keep_response = True;
*errnop = errno = ERANGE;
return ret;
}
}
} else {
/* We've been called again */
ret = fill_pwent(result, &response.data.pw, &buffer, &buflen);
if (ret == NSS_STATUS_TRYAGAIN) {
keep_response = True;
*errnop = errno = ERANGE;
return ret;
}
keep_response = False;
*errnop = errno = 0;
}
free_response(&response);
return ret;
}
NSS_STATUS
_nss_winbind_getpwuid_r(uid_t uid, struct passwd *result, char *buffer,
size_t buflen, int *errnop)
{
NSS_STATUS ret;
static struct winbindd_response response;
struct winbindd_request request;
static int keep_response=0;
/* If our static buffer needs to be expanded we are called again */
if (!keep_response) {
/* Call for the first time */
ZERO_STRUCT(response);
ZERO_STRUCT(request);
request.data.uid = uid;
ret = winbindd_request(WINBINDD_GETPWUID, &request, &response);
if (ret == NSS_STATUS_SUCCESS) {
ret = fill_pwent(result, &response.data.pw,
&buffer, &buflen);
if (ret == NSS_STATUS_TRYAGAIN) {
keep_response = True;
*errnop = errno = ERANGE;
return ret;
}
}
} else {
/* We've been called again */
ret = fill_pwent(result, &response.data.pw, &buffer, &buflen);
if (ret == NSS_STATUS_TRYAGAIN) {
keep_response = True;
*errnop = errno = ERANGE;
return ret;
}
keep_response = False;
*errnop = errno = 0;
}
free_response(&response);
return ret;
}
/* take a username and return a filled struct passwd */
static struct passwd *wb_aix_getpwnam(const char *name)
{
struct winbindd_response response;
struct winbindd_request request;
NSS_STATUS ret;
struct passwd *pwd;
if (*name == WB_AIX_ENCODED) {
return wb_aix_getpwuid(decode_id(name));
}
logit("getpwnam '%s'\n", name);
ZERO_STRUCT(response);
ZERO_STRUCT(request);
STRCPY_RETNULL(request.data.username, name);
ret = winbindd_request_response(NULL, WINBINDD_GETPWNAM,
&request, &response);
HANDLE_ERRORS(ret);
pwd = fill_pwent(&response.data.pw);
winbindd_free_response(&response);
logit("getpwnam gave ptr %p\n", pwd);
return pwd;
}
/* take a uid and return a filled struct passwd */
static struct passwd *wb_aix_getpwuid(uid_t uid)
{
struct winbindd_response response;
struct winbindd_request request;
NSS_STATUS ret;
struct passwd *pwd;
logit("getpwuid '%d'\n", uid);
ZERO_STRUCT(response);
ZERO_STRUCT(request);
request.data.uid = uid;
ret = winbindd_request_response(NULL, WINBINDD_GETPWUID,
&request, &response);
HANDLE_ERRORS(ret);
pwd = fill_pwent(&response.data.pw);
winbindd_free_response(&response);
logit("getpwuid gave ptr %p\n", pwd);
return pwd;
}
NSS_STATUS
_nss_winbind_getpwent_r(struct passwd *result, char *buffer,
size_t buflen, int *errnop)
{
NSS_STATUS ret;
struct winbindd_request request;
static int called_again;
#ifdef DEBUG_NSS
fprintf(stderr, "[%5d]: getpwent\n", getpid());
#endif
/* Return an entry from the cache if we have one, or if we are
called again because we exceeded our static buffer. */
if ((ndx_pw_cache < num_pw_cache) || called_again) {
goto return_result;
}
/* Else call winbindd to get a bunch of entries */
if (num_pw_cache > 0) {
free_response(&getpwent_response);
}
ZERO_STRUCT(request);
ZERO_STRUCT(getpwent_response);
request.data.num_entries = MAX_GETPWENT_USERS;
ret = winbindd_request(WINBINDD_GETPWENT, &request,
&getpwent_response);
if (ret == NSS_STATUS_SUCCESS) {
struct winbindd_pw *pw_cache;
/* Fill cache */
ndx_pw_cache = 0;
num_pw_cache = getpwent_response.data.num_entries;
/* Return a result */
return_result:
pw_cache = getpwent_response.extra_data;
/* Check data is valid */
if (pw_cache == NULL) {
return NSS_STATUS_NOTFOUND;
}
ret = fill_pwent(result, &pw_cache[ndx_pw_cache],
&buffer, &buflen);
/* Out of memory - try again */
if (ret == NSS_STATUS_TRYAGAIN) {
called_again = True;
*errnop = errno = ERANGE;
return ret;
}
*errnop = errno = 0;
called_again = False;
ndx_pw_cache++;
/* If we've finished with this lot of results free cache */
if (ndx_pw_cache == num_pw_cache) {
ndx_pw_cache = num_pw_cache = 0;
free_response(&getpwent_response);
}
}
return ret;
}
/* Return passwd struct from username */
NSS_STATUS
_nss_winbind_getpwnam_r(const char *name, struct passwd *result, char *buffer,
size_t buflen, int *errnop)
{
NSS_STATUS ret;
static struct winbindd_response response;
struct winbindd_request request;
static int keep_response;
#ifdef DEBUG_NSS
fprintf(stderr, "[%5d]: getpwnam_r %s\n", getpid(), name);
#endif
#if HAVE_PTHREAD
pthread_mutex_lock(&winbind_nss_mutex);
#endif
/* If our static buffer needs to be expanded we are called again */
if (!keep_response || strcmp(name,response.data.pw.pw_name) != 0) {
/* Call for the first time */
ZERO_STRUCT(response);
ZERO_STRUCT(request);
strncpy(request.data.username, name,
sizeof(request.data.username) - 1);
request.data.username
[sizeof(request.data.username) - 1] = '\0';
ret = winbindd_request_response(NULL, WINBINDD_GETPWNAM, &request, &response);
if (ret == NSS_STATUS_SUCCESS) {
ret = fill_pwent(result, &response.data.pw, &buffer,
&buflen);
if (ret == NSS_STATUS_TRYAGAIN) {
keep_response = true;
*errnop = errno = ERANGE;
goto done;
}
}
} else {
/* We've been called again */
ret = fill_pwent(result, &response.data.pw, &buffer, &buflen);
if (ret == NSS_STATUS_TRYAGAIN) {
keep_response = true;
*errnop = errno = ERANGE;
goto done;
}
keep_response = false;
*errnop = errno = 0;
}
winbindd_free_response(&response);
done:
#ifdef DEBUG_NSS
fprintf(stderr, "[%5d]: getpwnam %s returns %s (%d)\n", getpid(),
name, nss_err_str(ret), ret);
#endif
#if HAVE_PTHREAD
pthread_mutex_unlock(&winbind_nss_mutex);
#endif
return ret;
}
