glibc/db2/common/db_appinit.c
Ulrich Drepper 92f1da4da0 Update.
1997-08-10 19:17  Philip Blundell  <Philip.Blundell@pobox.com>

	* nss/nss_db/db-XXX.c: Include <db_185.h> not <db.h>.  Somebody
	should update this to use the new db API.
	* nss/nss_db/db-netgrp.c: Likewise.
	* nss/nss_db/db-alias.c: Likewise.
	* db2/Makefile: Makefile for db-2.x in glibc.

1997-08-27 21:20  Ulrich Drepper  <drepper@cygnus.com>

	* csu/Makefile (before-compile): New goal.  Make sure abi-tag.h
	is generated.
	[$(elf)=yes] (asm-CPPFLAGS): Make sure abi-tag.h file can be found.

	* Makeconfig [$(build-omitfp)=yes] (CFLAGS-.o): Add
	-D__USE_STRING_INLINES.
	* string/string.f: Move strnlen optimization after inclusion of
	<bits/string.h>.  Include <bits/string.h> only if __USE_STRING_INLINES
	is defined.
	* sysdeps/generic/memcpy.c: Undef memcpy to allow macro of this name
	in <bits/string.h>.
	* sysdeps/generic/memset.c: Likewise.
	* sysdeps/i386/string.h: i386 optimized string functions.
	* sysdeps/i386/i486string.h: i486+ optimized string functions.

	* Makefile (subdirs): Change db to db2.
	* shlib-versions: Bump libdb verion number to 3.
	* include/db.h: Include from db2 directory.
	* include/db_185.h: New file.
	* sysdeps/i386/Makefile [$(subdirs)=db2] (CPPFLAGS): Add macros
	to provide spinlock information for db2.
	* sysdeps/m68k/m68020/Makefile: New file.  Likewise.
	* sysdeps/sparc/Makefile: New file.  Likewise.
	* sysdeps/unix/sysv/linux/Makefile [$(subdirs)=db2] (CPPFLAGS):
	Add -DHAVE_LLSEEK.
	* db2/config.h: Hand-edited config file for db2 in glibc.
	* db2/compat.h: New file from db-2.3.4.
	* db2/db.h: Likewise.
	* db2/db_185.h: Likewise.
	* db2/db_int.h: Likewise.
	* db2/makedb.c: Likewise.
	* db2/btree/bt_close.c: Likewise.
	* db2/btree/bt_compare.c: Likewise.
	* db2/btree/bt_conv.c: Likewise.
	* db2/btree/bt_cursor.c: Likewise.
	* db2/btree/bt_delete.c: Likewise.
	* db2/btree/bt_open.c: Likewise.
	* db2/btree/bt_page.c: Likewise.
	* db2/btree/bt_put.c: Likewise.
	* db2/btree/bt_rec.c: Likewise.
	* db2/btree/bt_recno.c: Likewise.
	* db2/btree/btree_auto.c: Likewise.
	* db2/btree/bt_rsearch.c: Likewise.
	* db2/btree/bt_search.c: Likewise.
	* db2/btree/bt_split.c: Likewise.
	* db2/btree/bt_stat.c: Likewise.
	* db2/btree/btree.src: Likewise.
	* db2/common/db_appinit.c: Likewise.
	* db2/common/db_err.c: Likewise.
	* db2/common/db_byteorder.c: Likewise.
	* db2/common/db_apprec.c: Likewise.
	* db2/common/db_salloc.c: Likewise.
	* db2/common/db_log2.c: Likewise.
	* db2/common/db_region.c: Likewise.
	* db2/common/db_shash.c: Likewise.
	* db2/db/db.c: Likewise.
	* db2/db/db.src: Likewise.
	* db2/db/db_conv.c: Likewise.
	* db2/db/db_dispatch.c: Likewise.
	* db2/db/db_dup.c: Likewise.
	* db2/db/db_overflow.c: Likewise.
	* db2/db/db_pr.c: Likewise.
	* db2/db/db_rec.c: Likewise.
	* db2/db/db_ret.c: Likewise.
	* db2/db/db_thread.c: Likewise.
	* db2/db/db_auto.c: Likewise.
	* db2/db185/db185.c: Likewise.
	* db2/db185/db185_int.h: Likewise.
	* db2/dbm/dbm.c: Likewise.
	* db2/hash/hash.c: Likewise.
	* db2/hash/hash.src: Likewise.
	* db2/hash/hash_page.c: Likewise.
	* db2/hash/hash_conv.c: Likewise.
	* db2/hash/hash_debug.c: Likewise.
	* db2/hash/hash_stat.c: Likewise.
	* db2/hash/hash_rec.c: Likewise.
	* db2/hash/hash_dup.c: Likewise.
	* db2/hash/hash_func.c: Likewise.
	* db2/hash/hash_auto.c: Likewise.
	* db2/include/mp.h: Likewise.
	* db2/include/btree.h: Likewise.
	* db2/include/db.h.src: Likewise.
	* db2/include/db_int.h.src: Likewise.
	* db2/include/db_shash.h: Likewise.
	* db2/include/db_swap.h: Likewise.
	* db2/include/db_185.h.src: Likewise.
	* db2/include/txn.h: Likewise.
	* db2/include/db_am.h: Likewise.
	* db2/include/shqueue.h: Likewise.
	* db2/include/hash.h: Likewise.
	* db2/include/db_dispatch.h: Likewise.
	* db2/include/lock.h: Likewise.
	* db2/include/db_page.h: Likewise.
	* db2/include/log.h: Likewise.
	* db2/include/db_auto.h: Likewise.
	* db2/include/btree_auto.h: Likewise.
	* db2/include/hash_auto.h: Likewise.
	* db2/include/log_auto.h: Likewise.
	* db2/include/txn_auto.h: Likewise.
	* db2/include/db_ext.h: Likewise.
	* db2/include/btree_ext.h: Likewise.
	* db2/include/clib_ext.h: Likewise.
	* db2/include/common_ext.h: Likewise.
	* db2/include/hash_ext.h: Likewise.
	* db2/include/lock_ext.h: Likewise.
	* db2/include/log_ext.h: Likewise.
	* db2/include/mp_ext.h: Likewise.
	* db2/include/mutex_ext.h: Likewise.
	* db2/include/os_ext.h: Likewise.
	* db2/include/txn_ext.h: Likewise.
	* db2/include/cxx_int.h: Likewise.
	* db2/include/db_cxx.h: Likewise.
	* db2/include/queue.h: Likewise.
	* db2/lock/lock.c: Likewise.
	* db2/lock/lock_conflict.c: Likewise.
	* db2/lock/lock_util.c: Likewise.
	* db2/lock/lock_deadlock.c: Likewise.
	* db2/log/log.c: Likewise.
	* db2/log/log_get.c: Likewise.
	* db2/log/log.src: Likewise.
	* db2/log/log_compare.c: Likewise.
	* db2/log/log_put.c: Likewise.
	* db2/log/log_rec.c: Likewise.
	* db2/log/log_archive.c: Likewise.
	* db2/log/log_register.c: Likewise.
	* db2/log/log_auto.c: Likewise.
	* db2/log/log_findckp.c: Likewise.
	* db2/mp/mp_bh.c: Likewise.
	* db2/mp/mp_fget.c: Likewise.
	* db2/mp/mp_fopen.c: Likewise.
	* db2/mp/mp_fput.c: Likewise.
	* db2/mp/mp_fset.c: Likewise.
	* db2/mp/mp_open.c: Likewise.
	* db2/mp/mp_region.c: Likewise.
	* db2/mp/mp_pr.c: Likewise.
	* db2/mp/mp_sync.c: Likewise.
	* db2/mutex/68020.gcc: Likewise.
	* db2/mutex/mutex.c: Likewise.
	* db2/mutex/README: Likewise.
	* db2/mutex/x86.gcc: Likewise.
	* db2/mutex/sparc.gcc: Likewise.
	* db2/mutex/uts4.cc.s: Likewise.
	* db2/mutex/alpha.dec: Likewise.
	* db2/mutex/alpha.gcc: Likewise.
	* db2/mutex/parisc.gcc: Likewise.
	* db2/mutex/parisc.hp: Likewise.
	* db2/os/db_os_abs.c: Likewise.
	* db2/os/db_os_dir.c: Likewise.
	* db2/os/db_os_fid.c: Likewise.
	* db2/os/db_os_lseek.c: Likewise.
	* db2/os/db_os_mmap.c: Likewise.
	* db2/os/db_os_open.c: Likewise.
	* db2/os/db_os_rw.c: Likewise.
	* db2/os/db_os_sleep.c: Likewise.
	* db2/os/db_os_stat.c: Likewise.
	* db2/os/db_os_unlink.c: Likewise.
	* db2/txn/txn.c: Likewise.
	* db2/txn/txn.src: Likewise.
	* db2/txn/txn_rec.c: Likewise.
	* db2/txn/txn_auto.c: Likewise.
	* db2/clib/getlong.c: Likewise.
	* db2/progs/db_archive/db_archive.c: Likewise.
	* db2/progs/db_checkpoint/db_checkpoint.c: Likewise.
	* db2/progs/db_deadlock/db_deadlock.c: Likewise.
	* db2/progs/db_dump/db_dump.c: Likewise.
	* db2/progs/db_dump185/db_dump185.c: Likewise.
	* db2/progs/db_load/db_load.c: Likewise.
	* db2/progs/db_printlog/db_printlog.c: Likewise.
	* db2/progs/db_recover/db_recover.c: Likewise.
	* db2/progs/db_stat/db_stat.c: Likewise.

	* libio/stdio.h [__cplusplus] (__STDIO_INLINE): Define as inline.

	* po/de.po, po/sv.po: Update from 2.0.5 translations.

	* sysdeps/unix/sysv/linux/netinet/tcp.h: Pretty print.

	* sunrpc/rpc/xdr.h (XDR): Don't define argument of x_destroy callback
	as const.
	* sunrpc/xdr_mem.c (xdrmem_destroy): Don't define argument as const.
	* sunrpx/xdr_rec.c (xdrrec_destroy): Likewise.
	* sunrpx/xdr_stdio.c (xdrstdio_destroy): Likewise.

1997-08-27 18:47  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/if_index.c: Include <errno.h>.
	Reported by Benjamin Kosnik <bkoz@cygnus.com>.

1997-08-27 02:27  Roland McGrath  <roland@baalperazim.frob.com>

	* abi-tags: New file.
	* csu/Makefile (distribute): Remove abi-tag.h.
	($(objpfx)abi-tag.h): New target.
	* Makefile (distribute): Add abi-tags.
	* sysdeps/unix/sysv/linux/abi-tag.h: File removed.
	* sysdeps/mach/hurd/abi-tag.h: File removed.
	* sysdeps/stub/abi-tag.h: File removed.

1997-08-25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/make-syscalls.sh: Change output so that it
	generates compilation rules only for the currently selected object
	suffixes.

1997-08-25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/dl-machine.h (RTLD_START): Switch back to previous
	section to avoid confusing the compiler.
	* sysdeps/alpha/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/i386/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/mips/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/mips/mips64/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise.

	* sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use a GOT
	relocation instead of a constant to avoid text relocation.
	(ELF_MACHINE_BEFORE_RTLD_RELOC): Removed.
	(RTLD_START): Declare global labels as functions and add size
	directive.

1997-08-25 17:01  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/bits/select.h: Correct assembler versions to work even
	for descriptors >= 32.

	* stdlib/alloca.h: Don't define alloca to __alloca since if gcc
	is used __alloca is not defined to __builtin_alloca and so might
	not be available.
	Reported by Uwe Ohse <uwe@ohse.de>.

	* sysdeps/unix/sysv/linux/sys/sysmacros.h: Define macros in a special
	way if gcc is not used and so dev_t is an array.
	Reported by Uwe Ohse <uwe@ohse.de>.

1997-08-23  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/libc.texinfo: Reorder chapters to match logical order.

1997-08-25 12:22  Ulrich Drepper  <drepper@cygnus.com>

	* sunrpc/rpc/xdr.h: Change name of parameters in prototypes of
	xdr_reference, xdrmem_create, and xdrstdio_create because of clash
	with g++ internal symbols.
	Patch by Sudish Joseph <sj@eng.mindspring.net>.

	* elf/dl-deps.c: Implement handling of DT_FILTER.
1997-08-27 20:26:10 +00:00

788 lines
18 KiB
C

/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996, 1997
* Sleepycat Software. All rights reserved.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)db_appinit.c 10.27 (Sleepycat) 8/23/97";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
#include <sys/param.h>
#include <sys/stat.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#endif
#include "db_int.h"
#include "shqueue.h"
#include "db_page.h"
#include "btree.h"
#include "hash.h"
#include "log.h"
#include "txn.h"
#include "clib_ext.h"
#include "common_ext.h"
static int __db_home __P((DB_ENV *, const char *, int));
static int __db_parse __P((DB_ENV *, char *));
static int __db_tmp_dir __P((DB_ENV *, int));
static int __db_tmp_open __P((DB_ENV *, char *, int *));
/*
* db_version --
* Return verision information.
*/
const char *
db_version(majverp, minverp, patchp)
int *majverp, *minverp, *patchp;
{
if (majverp != NULL)
*majverp = DB_VERSION_MAJOR;
if (minverp != NULL)
*minverp = DB_VERSION_MINOR;
if (patchp != NULL)
*patchp = DB_VERSION_PATCH;
return (DB_VERSION_STRING);
}
/*
* db_appinit --
* Initialize the application environment.
*/
int
db_appinit(db_home, db_config, dbenv, flags)
const char *db_home;
char * const *db_config;
DB_ENV *dbenv;
int flags;
{
FILE *fp;
int i_lock, i_log, i_mpool, i_txn, ret;
char *lp, **p, buf[MAXPATHLEN * 2];
/* Validate arguments. */
if (dbenv == NULL)
return (EINVAL);
#ifdef HAVE_SPINLOCKS
#define OKFLAGS \
(DB_CREATE | DB_NOMMAP | DB_THREAD | DB_INIT_LOCK | DB_INIT_LOG | \
DB_INIT_MPOOL | DB_INIT_TXN | DB_MPOOL_PRIVATE | DB_RECOVER | \
DB_RECOVER_FATAL | DB_TXN_NOSYNC | DB_USE_ENVIRON | DB_USE_ENVIRON_ROOT)
#else
#define OKFLAGS \
(DB_CREATE | DB_NOMMAP | DB_INIT_LOCK | DB_INIT_LOG | \
DB_INIT_MPOOL | DB_INIT_TXN | DB_MPOOL_PRIVATE | DB_RECOVER | \
DB_RECOVER_FATAL | DB_TXN_NOSYNC | DB_USE_ENVIRON | DB_USE_ENVIRON_ROOT)
#endif
if ((ret = __db_fchk(dbenv, "db_appinit", flags, OKFLAGS)) != 0)
return (ret);
#define RECOVERY_FLAGS (DB_CREATE | DB_INIT_TXN | DB_INIT_LOG)
if (LF_ISSET(DB_RECOVER | DB_RECOVER_FATAL) &&
LF_ISSET(RECOVERY_FLAGS) != RECOVERY_FLAGS)
return (__db_ferr(dbenv, "db_appinit", 1));
fp = NULL;
i_lock = i_log = i_mpool = i_txn = 0;
/* Set the database home. */
if ((ret = __db_home(dbenv, db_home, flags)) != 0)
goto err;
/* Parse the config array. */
for (p = (char **)db_config; p != NULL && *p != NULL; ++p)
if ((ret = __db_parse(dbenv, *p)) != 0)
goto err;
/* Parse the config file. */
if (dbenv->db_home != NULL) {
(void)snprintf(buf,
sizeof(buf), "%s/DB_CONFIG", dbenv->db_home);
if ((fp = fopen(buf, "r")) != NULL) {
while (fgets(buf, sizeof(buf), fp) != NULL) {
if ((lp = strchr(buf, '\n')) != NULL)
*lp = '\0';
if ((ret = __db_parse(dbenv, buf)) != 0)
goto err;
}
(void)fclose(fp);
}
}
/* Set up the tmp directory path. */
if (dbenv->db_tmp_dir == NULL &&
(ret = __db_tmp_dir(dbenv, flags)) != 0)
goto err;
/* Indicate that the path names have been set. */
F_SET(dbenv, DB_APP_INIT);
/*
* If we are doing recovery, remove all the regions.
*/
if (LF_ISSET(DB_RECOVER | DB_RECOVER_FATAL)) {
/* Remove all the old shared memory regions. */
if ((ret = log_unlink(NULL, 1 /* force */, dbenv)) != 0)
goto err;
if ((ret = memp_unlink(NULL, 1 /* force */, dbenv)) != 0)
goto err;
if ((ret = lock_unlink(NULL, 1 /* force */, dbenv)) != 0)
goto err;
if ((ret = txn_unlink(NULL, 1 /* force */, dbenv)) != 0)
goto err;
}
/* Transactions imply logging. */
if (LF_ISSET(DB_INIT_TXN))
LF_SET(DB_INIT_LOG);
/* Default permissions are 0660. */
#undef DB_DEFPERM
#define DB_DEFPERM (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP)
/* Initialize the subsystems. */
if (LF_ISSET(DB_INIT_LOCK)) {
if ((ret = lock_open(NULL,
LF_ISSET(DB_CREATE | DB_THREAD),
DB_DEFPERM, dbenv, &dbenv->lk_info)) != 0)
goto err;
i_lock = 1;
}
if (LF_ISSET(DB_INIT_LOG)) {
if ((ret = log_open(NULL,
LF_ISSET(DB_CREATE | DB_THREAD),
DB_DEFPERM, dbenv, &dbenv->lg_info)) != 0)
goto err;
i_log = 1;
}
if (LF_ISSET(DB_INIT_MPOOL)) {
if ((ret = memp_open(NULL,
LF_ISSET(DB_CREATE | DB_MPOOL_PRIVATE | DB_NOMMAP | DB_THREAD),
DB_DEFPERM, dbenv, &dbenv->mp_info)) != 0)
goto err;
i_mpool = 1;
}
if (LF_ISSET(DB_INIT_TXN)) {
if ((ret = txn_open(NULL,
LF_ISSET(DB_CREATE | DB_THREAD | DB_TXN_NOSYNC),
DB_DEFPERM, dbenv, &dbenv->tx_info)) != 0)
goto err;
i_txn = 1;
}
/* Initialize recovery. */
if (LF_ISSET(DB_INIT_TXN)) {
if ((ret = __bam_init_recover(dbenv)) != 0)
goto err;
if ((ret = __db_init_recover(dbenv)) != 0)
goto err;
if ((ret = __ham_init_recover(dbenv)) != 0)
goto err;
if ((ret = __log_init_recover(dbenv)) != 0)
goto err;
if ((ret = __txn_init_recover(dbenv)) != 0)
goto err;
}
/* Now run recovery if necessary. */
if (LF_ISSET(DB_RECOVER | DB_RECOVER_FATAL) && (ret =
__db_apprec(dbenv, LF_ISSET(DB_RECOVER | DB_RECOVER_FATAL))) != 0)
goto err;
return (ret);
err: if (fp != NULL)
(void)fclose(fp);
if (i_lock)
(void)lock_close(dbenv->lk_info);
if (i_log)
(void)log_close(dbenv->lg_info);
if (i_mpool)
(void)memp_close(dbenv->mp_info);
if (i_txn)
(void)txn_close(dbenv->tx_info);
(void)db_appexit(dbenv);
return (ret);
}
/*
* db_appexit --
* Close down the default application environment.
*/
int
db_appexit(dbenv)
DB_ENV *dbenv;
{
int ret, t_ret;
char **p;
ret = 0;
/* Close subsystems. */
if (dbenv->tx_info && (t_ret = txn_close(dbenv->tx_info)) != 0)
if (ret == 0)
ret = t_ret;
if (dbenv->mp_info && (t_ret = memp_close(dbenv->mp_info)) != 0)
if (ret == 0)
ret = t_ret;
if (dbenv->lg_info && (t_ret = log_close(dbenv->lg_info)) != 0)
if (ret == 0)
ret = t_ret;
if (dbenv->lk_info && (t_ret = lock_close(dbenv->lk_info)) != 0)
if (ret == 0)
ret = t_ret;
/* Free allocated memory. */
if (dbenv->db_home != NULL)
FREES(dbenv->db_home);
if ((p = dbenv->db_data_dir) != NULL) {
for (; *p != NULL; ++p)
FREES(*p);
FREE(dbenv->db_data_dir, dbenv->data_cnt * sizeof(char **));
}
if (dbenv->db_log_dir != NULL)
FREES(dbenv->db_log_dir);
if (dbenv->db_tmp_dir != NULL)
FREES(dbenv->db_tmp_dir);
return (ret);
}
#define DB_ADDSTR(str) { \
if ((str) != NULL) { \
/* If leading slash, start over. */ \
if (__db_abspath(str)) { \
p = start; \
slash = 0; \
} \
/* Append to the current string. */ \
len = strlen(str); \
if (slash) \
*p++ = PATH_SEPARATOR[0]; \
memcpy(p, str, len); \
p += len; \
slash = strchr(PATH_SEPARATOR, p[-1]) == NULL; \
} \
}
/*
* __db_appname --
* Given an optional DB environment, directory and file name and type
* of call, build a path based on the db_appinit(3) rules, and return
* it in allocated space.
*
* PUBLIC: int __db_appname __P((DB_ENV *,
* PUBLIC: APPNAME, const char *, const char *, int *, char **));
*/
int
__db_appname(dbenv, appname, dir, file, fdp, namep)
DB_ENV *dbenv;
APPNAME appname;
const char *dir, *file;
int *fdp;
char **namep;
{
DB_ENV etmp;
size_t len;
int ret, slash, tmp_create, tmp_free;
const char *a, *b, *c;
int data_entry;
char *p, *start;
a = b = c = NULL;
data_entry = -1;
tmp_create = tmp_free = 0;
/*
* We don't return a name when creating temporary files, just an fd.
* Default to error now.
*/
if (fdp != NULL)
*fdp = -1;
if (namep != NULL)
*namep = NULL;
/*
* Absolute path names are never modified. If the file is an absolute
* path, we're done. If the directory is, simply append the file and
* return.
*/
if (file != NULL && __db_abspath(file))
return ((*namep = (char *)strdup(file)) == NULL ? ENOMEM : 0);
if (dir != NULL && __db_abspath(dir)) {
a = dir;
goto done;
}
/*
* DB_ENV DIR APPNAME RESULT
* -------------------------------------------
* null null none <tmp>/file
* null set none DIR/file
* set null none DB_HOME/file
* set set none DB_HOME/DIR/file
*
* DB_ENV FILE APPNAME RESULT
* -------------------------------------------
* null null DB_APP_DATA <tmp>/<create>
* null set DB_APP_DATA ./file
* set null DB_APP_DATA <tmp>/<create>
* set set DB_APP_DATA DB_HOME/DB_DATA_DIR/file
*
* DB_ENV DIR APPNAME RESULT
* -------------------------------------------
* null null DB_APP_LOG <tmp>/file
* null set DB_APP_LOG DIR/file
* set null DB_APP_LOG DB_HOME/DB_LOG_DIR/file
* set set DB_APP_LOG DB_HOME/DB_LOG_DIR/DIR/file
*
* DB_ENV APPNAME RESULT
* -------------------------------------------
* null DB_APP_TMP <tmp>/<create>
* set DB_APP_TMP DB_HOME/DB_TMP_DIR/<create>
*/
retry: switch (appname) {
case DB_APP_NONE:
if (dbenv == NULL || !F_ISSET(dbenv, DB_APP_INIT)) {
if (dir == NULL)
goto tmp;
a = dir;
} else {
a = dbenv->db_home;
b = dir;
}
break;
case DB_APP_DATA:
if (dir != NULL) {
__db_err(dbenv,
"DB_APP_DATA: illegal directory specification");
return (EINVAL);
}
if (file == NULL) {
tmp_create = 1;
goto tmp;
}
if (dbenv == NULL || !F_ISSET(dbenv, DB_APP_INIT))
a = PATH_DOT;
else {
a = dbenv->db_home;
if (dbenv->db_data_dir != NULL &&
(b = dbenv->db_data_dir[++data_entry]) == NULL) {
data_entry = -1;
b = dbenv->db_data_dir[0];
}
}
break;
case DB_APP_LOG:
if (dbenv == NULL || !F_ISSET(dbenv, DB_APP_INIT)) {
if (dir == NULL)
goto tmp;
a = dir;
} else {
a = dbenv->db_home;
b = dbenv->db_log_dir;
c = dir;
}
break;
case DB_APP_TMP:
if (dir != NULL || file != NULL) {
__db_err(dbenv,
"DB_APP_TMP: illegal directory or file specification");
return (EINVAL);
}
tmp_create = 1;
if (dbenv == NULL || !F_ISSET(dbenv, DB_APP_INIT))
goto tmp;
else {
a = dbenv->db_home;
b = dbenv->db_tmp_dir;
}
break;
}
/* Reference a file from the appropriate temporary directory. */
if (0) {
tmp: if (dbenv == NULL || !F_ISSET(dbenv, DB_APP_INIT)) {
memset(&etmp, 0, sizeof(etmp));
if ((ret = __db_tmp_dir(&etmp, DB_USE_ENVIRON)) != 0)
return (ret);
tmp_free = 1;
a = etmp.db_tmp_dir;
} else
a = dbenv->db_tmp_dir;
}
done: len =
(a == NULL ? 0 : strlen(a) + 1) +
(b == NULL ? 0 : strlen(b) + 1) +
(c == NULL ? 0 : strlen(c) + 1) +
(file == NULL ? 0 : strlen(file) + 1);
if ((start = (char *)malloc(len)) == NULL) {
__db_err(dbenv, "%s", strerror(ENOMEM));
if (tmp_free)
FREES(etmp.db_tmp_dir);
return (ENOMEM);
}
slash = 0;
p = start;
DB_ADDSTR(a);
DB_ADDSTR(b);
DB_ADDSTR(file);
*p = '\0';
/*
* If we're opening a data file, see if it exists. If it does,
* return it, otherwise, try and find another one to open.
*/
if (data_entry != -1 && __db_exists(start, NULL) != 0) {
FREES(start);
a = b = c = NULL;
goto retry;
}
/* Discard any space allocated to find the temp directory. */
if (tmp_free)
FREES(etmp.db_tmp_dir);
/* Create the file if so requested. */
if (tmp_create) {
ret = __db_tmp_open(dbenv, start, fdp);
FREES(start);
} else {
*namep = start;
ret = 0;
}
return (ret);
}
/*
* __db_home --
* Find the database home.
*/
static int
__db_home(dbenv, db_home, flags)
DB_ENV *dbenv;
const char *db_home;
int flags;
{
const char *p;
p = db_home;
/* Use the environment if it's permitted and initialized. */
#ifdef HAVE_GETUID
if (LF_ISSET(DB_USE_ENVIRON) ||
(LF_ISSET(DB_USE_ENVIRON_ROOT) && getuid() == 0)) {
#else
if (LF_ISSET(DB_USE_ENVIRON)) {
#endif
if ((p = getenv("DB_HOME")) == NULL)
p = db_home;
else if (p[0] == '\0') {
__db_err(dbenv,
"illegal DB_HOME environment variable");
return (EINVAL);
}
}
if (p == NULL)
return (0);
if ((dbenv->db_home = (char *)strdup(p)) == NULL) {
__db_err(dbenv, "%s", strerror(ENOMEM));
return (ENOMEM);
}
return (0);
}
/*
* __db_parse --
* Parse a single NAME VALUE pair.
*/
static int
__db_parse(dbenv, s)
DB_ENV *dbenv;
char *s;
{
int ret;
char *local_s, *name, *value, **p, *tp;
ret = 0;
/*
* We need to strdup the argument in case the caller passed us
* static data.
*/
if ((local_s = (char *)strdup(s)) == NULL)
return (ENOMEM);
tp = local_s;
while ((name = strsep(&tp, " \t")) != NULL && *name == '\0');
if (name == NULL)
goto illegal;
while ((value = strsep(&tp, " \t")) != NULL && *value == '\0');
if (value == NULL) {
illegal: ret = EINVAL;
__db_err(dbenv, "illegal name-value pair: %s", s);
goto err;
}
#define DATA_INIT_CNT 20 /* Start with 20 data slots. */
if (!strcmp(name, "DB_DATA_DIR")) {
if (dbenv->db_data_dir == NULL) {
if ((dbenv->db_data_dir = (char **)calloc(DATA_INIT_CNT,
sizeof(char **))) == NULL)
goto nomem;
dbenv->data_cnt = DATA_INIT_CNT;
} else if (dbenv->data_next == dbenv->data_cnt - 1) {
dbenv->data_cnt *= 2;
if ((dbenv->db_data_dir =
(char **)realloc(dbenv->db_data_dir,
dbenv->data_cnt * sizeof(char **))) == NULL)
goto nomem;
}
p = &dbenv->db_data_dir[dbenv->data_next++];
} else if (!strcmp(name, "DB_LOG_DIR")) {
if (dbenv->db_log_dir != NULL)
FREES(dbenv->db_log_dir);
p = &dbenv->db_log_dir;
} else if (!strcmp(name, "DB_TMP_DIR")) {
if (dbenv->db_tmp_dir != NULL)
FREES(dbenv->db_tmp_dir);
p = &dbenv->db_tmp_dir;
} else
goto err;
if ((*p = (char *)strdup(value)) == NULL) {
nomem: ret = ENOMEM;
__db_err(dbenv, "%s", strerror(ENOMEM));
}
err: FREES(local_s);
return (ret);
}
#ifdef macintosh
#include <TFileSpec.h>
static char *sTempFolder;
#endif
/*
* tmp --
* Set the temporary directory path.
*/
static int
__db_tmp_dir(dbenv, flags)
DB_ENV *dbenv;
int flags;
{
static const char * list[] = { /* Ordered: see db_appinit(3). */
"/var/tmp",
"/usr/tmp",
"/temp", /* WIN32. */
"/tmp",
"C:/temp", /* WIN32. */
"C:/tmp", /* WIN32. */
NULL
};
const char **lp, *p;
/* Use the environment if it's permitted and initialized. */
p = NULL;
#ifdef HAVE_GETEUID
if (LF_ISSET(DB_USE_ENVIRON) ||
(LF_ISSET(DB_USE_ENVIRON_ROOT) && getuid() == 0)) {
#else
if (LF_ISSET(DB_USE_ENVIRON)) {
#endif
if ((p = getenv("TMPDIR")) != NULL && p[0] == '\0') {
__db_err(dbenv, "illegal TMPDIR environment variable");
return (EINVAL);
}
/* WIN32 */
if (p == NULL && (p = getenv("TEMP")) != NULL && p[0] == '\0') {
__db_err(dbenv, "illegal TEMP environment variable");
return (EINVAL);
}
/* WIN32 */
if (p == NULL && (p = getenv("TMP")) != NULL && p[0] == '\0') {
__db_err(dbenv, "illegal TMP environment variable");
return (EINVAL);
}
/* Macintosh */
if (p == NULL &&
(p = getenv("TempFolder")) != NULL && p[0] == '\0') {
__db_err(dbenv,
"illegal TempFolder environment variable");
return (EINVAL);
}
}
#ifdef macintosh
/* Get the path to the temporary folder. */
if (p == NULL) {
FSSpec spec;
if (!Special2FSSpec(kTemporaryFolderType,
kOnSystemDisk, 0, &spec)) {
p = FSp2FullPath(&spec);
sTempFolder = malloc(strlen(p) + 1);
strcpy(sTempFolder, p);
p = sTempFolder;
}
}
#endif
/* Step through the list looking for a possibility. */
if (p == NULL)
for (lp = list; *lp != NULL; ++lp)
if (__db_exists(p = *lp, NULL) == 0)
break;
if (p == NULL)
return (0);
if ((dbenv->db_tmp_dir = (char *)strdup(p)) == NULL) {
__db_err(dbenv, "%s", strerror(ENOMEM));
return (ENOMEM);
}
return (0);
}
/*
* __db_tmp_open --
* Create a temporary file.
*/
static int
__db_tmp_open(dbenv, dir, fdp)
DB_ENV *dbenv;
char *dir;
int *fdp;
{
#ifdef HAVE_SIGFILLSET
sigset_t set, oset;
#endif
u_long pid;
size_t len;
int isdir, ret;
char *trv, buf[MAXPATHLEN];
/*
* Check the target directory; if you have six X's and it doesn't
* exist, this runs for a *very* long time.
*/
if ((ret = __db_exists(dir, &isdir)) != 0) {
__db_err(dbenv, "%s: %s", dir, strerror(ret));
return (ret);
}
if (!isdir) {
__db_err(dbenv, "%s: %s", dir, strerror(EINVAL));
return (EINVAL);
}
/* Build the path. */
#define DB_TRAIL "/XXXXXX"
if ((len = strlen(dir)) + sizeof(DB_TRAIL) > sizeof(buf)) {
__db_err(dbenv,
"tmp_open: %s: %s", buf, strerror(ENAMETOOLONG));
return (ENAMETOOLONG);
}
(void)strcpy(buf, dir);
(void)strcpy(buf + len, DB_TRAIL);
buf[len] = PATH_SEPARATOR[0]; /* WIN32 */
/*
* Replace the X's with the process ID. Pid should be a pid_t,
* but we use unsigned long for portability.
*/
for (pid = getpid(),
trv = buf + len + sizeof(DB_TRAIL) - 1; *--trv == 'X'; pid /= 10)
switch (pid % 10) {
case 0: *trv = '0'; break;
case 1: *trv = '1'; break;
case 2: *trv = '2'; break;
case 3: *trv = '3'; break;
case 4: *trv = '4'; break;
case 5: *trv = '5'; break;
case 6: *trv = '6'; break;
case 7: *trv = '7'; break;
case 8: *trv = '8'; break;
case 9: *trv = '9'; break;
}
++trv;
/*
* Try and open a file. We block every signal we can get our hands
* on so that, if we're interrupted at the wrong time, the temporary
* file isn't left around -- of course, if we drop core in-between
* the calls we'll hang forever, but that's probably okay. ;-}
*/
#ifdef HAVE_SIGFILLSET
(void)sigfillset(&set);
#endif
for (;;) {
#ifdef HAVE_SIGFILLSET
(void)sigprocmask(SIG_BLOCK, &set, &oset);
#endif
#define DB_TEMPOPEN DB_CREATE | DB_EXCL | DB_TEMPORARY
if ((ret = __db_fdopen(buf,
DB_TEMPOPEN, DB_TEMPOPEN, S_IRUSR | S_IWUSR, fdp)) == 0) {
#ifdef HAVE_SIGFILLSET
(void)sigprocmask(SIG_SETMASK, &oset, NULL);
#endif
return (0);
}
#ifdef HAVE_SIGFILLSET
(void)sigprocmask(SIG_SETMASK, &oset, NULL);
#endif
/*
* XXX:
* If we don't get an EEXIST error, then there's something
* seriously wrong. Unfortunately, if the implementation
* doesn't return EEXIST for O_CREAT and O_EXCL regardless
* of other possible errors, we've lost.
*/
if (ret != EEXIST) {
__db_err(dbenv,
"tmp_open: %s: %s", buf, strerror(ret));
return (ret);
}
/*
* Tricky little algorithm for backward compatibility.
* Assumes the ASCII ordering of lower-case characters.
*/
for (;;) {
if (*trv == '\0')
return (EINVAL);
if (*trv == 'z')
*trv++ = 'a';
else {
if (isdigit(*trv))
*trv = 'a';
else
++*trv;
break;
}
}
}
/* NOTREACHED */
}