#include "nsswitch-internal.h"
#include "nonlocal.h"
-#define MAGIC_LOCAL_PW_BUFLEN (sysconf(_SC_GETPW_R_SIZE_MAX) + 7)
+
+enum nss_status
+_nss_nonlocal_getpwuid_r(uid_t uid, struct passwd *pwd,
+ char *buffer, size_t buflen, int *errnop);
+enum nss_status
+_nss_nonlocal_getpwnam_r(const char *name, struct passwd *pwd,
+ char *buffer, size_t buflen, int *errnop);
static service_user *
} fct;
struct passwd pwbuf;
int old_errno = errno;
- int buflen = MAGIC_LOCAL_PW_BUFLEN;
+
+ size_t buflen = sysconf(_SC_GETPW_R_SIZE_MAX);
char *buf = malloc(buflen);
if (buf == NULL) {
*errnop = ENOMEM;
nip = startp;
fct.ptr = fct_start;
do {
- status = DL_CALL_FCT(fct.l, (uid, &pwbuf, buf, buflen, errnop));
- if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE)
- break;
+ morebuf:
+ if (fct.l == _nss_nonlocal_getpwuid_r)
+ status = NSS_STATUS_NOTFOUND;
+ else
+ status = DL_CALL_FCT(fct.l, (uid, &pwbuf, buf, buflen, errnop));
+ if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE) {
+ free(buf);
+ buflen *= 2;
+ buf = malloc(buflen);
+ if (buf == NULL) {
+ *errnop = ENOMEM;
+ errno = old_errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ goto morebuf;
+ }
} while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0);
if (status == NSS_STATUS_SUCCESS) {
} fct;
struct passwd pwbuf;
int old_errno = errno;
- int buflen = MAGIC_LOCAL_PW_BUFLEN;
+
+ size_t buflen = sysconf(_SC_GETPW_R_SIZE_MAX);
char *buf = malloc(buflen);
if (buf == NULL) {
*errnop = ENOMEM;
nip = startp;
fct.ptr = fct_start;
do {
- status = DL_CALL_FCT(fct.l, (user, &pwbuf, buf, buflen, errnop));
- if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE)
- break;
+ morebuf:
+ if (fct.l == _nss_nonlocal_getpwnam_r)
+ status = NSS_STATUS_NOTFOUND;
+ else
+ status = DL_CALL_FCT(fct.l, (user, &pwbuf, buf, buflen, errnop));
+ if (status == NSS_STATUS_TRYAGAIN && *errnop == ERANGE) {
+ free(buf);
+ buflen *= 2;
+ buf = malloc(buflen);
+ if (buf == NULL) {
+ *errnop = ENOMEM;
+ errno = old_errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ goto morebuf;
+ }
} while (__nss_next(&nip, fct_name, &fct.ptr, status, 0) == 0);
if (status == NSS_STATUS_SUCCESS)
enum nss_status status;
char *nonlocal_ignore = getenv(NONLOCAL_IGNORE_ENV);
- if (buflen == MAGIC_LOCAL_PW_BUFLEN ||
- (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0'))
+ if (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0')
return NSS_STATUS_UNAVAIL;
if (pwent_nip == NULL) {
int group_errno;
char *nonlocal_ignore = getenv(NONLOCAL_IGNORE_ENV);
- if (buflen == MAGIC_LOCAL_PW_BUFLEN ||
- (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0'))
+ if (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0')
return NSS_STATUS_UNAVAIL;
nip = nss_passwd_nonlocal_database();
int group_errno;
char *nonlocal_ignore = getenv(NONLOCAL_IGNORE_ENV);
- if (buflen == MAGIC_LOCAL_PW_BUFLEN ||
- (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0'))
+ if (nonlocal_ignore != NULL && nonlocal_ignore[0] != '\0')
return NSS_STATUS_UNAVAIL;
nip = nss_passwd_nonlocal_database();