diff options
Diffstat (limited to 'nss/getXXent_r.c')
| -rw-r--r-- | nss/getXXent_r.c | 88 |
1 files changed, 61 insertions, 27 deletions
diff --git a/nss/getXXent_r.c b/nss/getXXent_r.c index 1d06a94..52e2136 100644 --- a/nss/getXXent_r.c +++ b/nss/getXXent_r.c @@ -1,21 +1,21 @@ /* Copyright (C) 1996 Free Software Foundation, Inc. -This file is part of the GNU C Library. -Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. -The GNU C Library is free software; you can redistribute it and/or -modify it under the terms of the GNU Library General Public License as -published by the Free Software Foundation; either version 2 of the -License, or (at your option) any later version. + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. -The GNU C Library 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 -Library General Public License for more details. + The GNU C Library 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 + Library General Public License for more details. -You should have received a copy of the GNU Library General Public -License along with the GNU C Library; see the file COPYING.LIB. If -not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ #include <libc-lock.h> @@ -48,17 +48,17 @@ Boston, MA 02111-1307, USA. */ /* To make the real sources a bit prettier. */ #define REENTRANT_GETNAME APPEND_R (GETFUNC_NAME) -#define APPEND_R(name) APPEND_R1 (name) -#define APPEND_R1(name) name##_r -#define INTERNAL(name) INTERNAL1 (name) -#define INTERNAL1(name) __##name +#define APPEND_R(Name) CONCAT2_2 (Name, _r) +#define INTERNAL(Name) CONCAT2_2 (__, Name) +#define CONCAT2_1(Pre, Post) CONCAT2_2 (Pre, Post) +#define CONCAT2_2(Pre, Post) Pre##Post #define SETFUNC_NAME_STRING STRINGIZE (SETFUNC_NAME) #define GETFUNC_NAME_STRING STRINGIZE (REENTRANT_GETNAME) #define ENDFUNC_NAME_STRING STRINGIZE (ENDFUNC_NAME) #define DATABASE_NAME_STRING STRINGIZE (DATABASE_NAME) -#define STRINGIZE(name) STRINGIZE1 (name) -#define STRINGIZE1(name) #name +#define STRINGIZE(Name) STRINGIZE1 (Name) +#define STRINGIZE1(Name) #Name #define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup) #define CONCAT3_1(Pre, Name, Post) CONCAT3_2 (Pre, Name, Post) @@ -74,9 +74,13 @@ Boston, MA 02111-1307, USA. */ #endif /* Some databases take the `stayopen' flag. */ -#ifndef STAYOPEN -#define STAYOPEN void -#define STAYOPEN_VAR +#ifdef STAYOPEN +# define STAYOPEN_TMP CONCAT2_1 (STAYOPEN, _tmp) +# define STAYOPEN_TMPVAR CONCAT2_1 (STAYOPEN_VAR, _tmp) +#else +# define STAYOPEN void +# define STAYOPEN_VAR +# define STAYOPEN_TMPVAR #endif /* Prototype for the setXXXent functions we use here. */ @@ -95,6 +99,13 @@ static service_user *nip; /* Remember the first service_entry, it's always the same. */ static service_user *startp; +#ifdef STAYOPEN_TMP +/* We need to remember the last `stayopen' flag given by the user + since the `setent' function is only called for the first available + service. */ +static STAYOPEN_TMP; +#endif + /* Protect above variable against multiple uses at the same time. */ __libc_lock_define_initialized (static, lock) @@ -143,15 +154,21 @@ SETFUNC_NAME (STAYOPEN) __libc_lock_lock (lock); - /* Cycle through all the services and run their setXXent functions. */ + /* Cycle through the services and run their `setXXent' functions until + we find an available service. */ no_more = setup ((void **) &fct, SETFUNC_NAME_STRING, 1); while (! no_more) { - /* Ignore status, we force check in __NSS_NEXT. */ - (void) (*fct) (STAYOPEN_VAR); + enum nss_status status = (*fct) (STAYOPEN_VAR); - no_more = __nss_next (&nip, SETFUNC_NAME_STRING, (void **) &fct, 0, 1); + no_more = __nss_next (&nip, SETFUNC_NAME_STRING, (void **) &fct, + status, 1); } + nip = NULL; + +#ifdef STAYOPEN_TMP + STAYOPEN_TMPVAR = STAYOPEN_VAR; +#endif __libc_lock_unlock (lock); } @@ -182,6 +199,7 @@ ENDFUNC_NAME (void) no_more = __nss_next (&nip, ENDFUNC_NAME_STRING, (void **) &fct, 0, 1); } + nip = NULL; __libc_lock_unlock (lock); } @@ -214,10 +232,26 @@ INTERNAL (REENTRANT_GETNAME) (LOOKUP_TYPE *resbuf, char *buffer, size_t buflen, no_more = setup ((void **) &fct, GETFUNC_NAME_STRING, 0); while (! no_more) { + service_user *current_nip = nip; + status = (*fct) (resbuf, buffer, buflen H_ERRNO_VAR); no_more = __nss_next (&nip, GETFUNC_NAME_STRING, (void **) &fct, status, 0); + + if (! no_more && current_nip != nip) + /* Call the `setXXent' function. This wasn't done before. */ + do + { + set_function *sfct; + + no_more = __nss_lookup (&nip, SETFUNC_NAME_STRING, + (void **) &sfct); + + if (! no_more) + status = (*sfct) (STAYOPEN_TMPVAR); + } + while (! no_more && status != NSS_STATUS_SUCCESS); } __libc_lock_unlock (lock); |