initial import of DBA

1 files changed, 190 insertions, 0 deletions

diff --git a/ext/dba/dba_dbm.c b/ext/dba/dba_dbm.c
new file mode 100644
index 0000000000..5858e8e610
--- /dev/null
+++ b/ext/dba/dba_dbm.c
@@ -0,0 +1,190 @@
+/*
+   +----------------------------------------------------------------------+
+   | PHP HTML Embedded Scripting Language Version 3.0                     |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1999 PHP Development Team (See Credits file)           |
+   +----------------------------------------------------------------------+
+   | This program is free software; you can redistribute it and/or modify |
+   | it under the terms of one of the following licenses:                 |
+   |                                                                      |
+   |  A) the GNU General Public License as published by the Free Software |
+   |     Foundation; either version 2 of the License, or (at your option) |
+   |     any later version.                                               |
+   |                                                                      |
+   |  B) the PHP License as published by the PHP Development Team and     |
+   |     included in the distribution in the file: LICENSE                |
+   |                                                                      |
+   | 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 both licenses referred to here.   |
+   | If you did not, or have any questions about PHP licensing, please    |
+   | contact core@php.net.                                                |
+   +----------------------------------------------------------------------+
+   | Authors: Sascha Schumann <sas@schell.de>                             |
+   +----------------------------------------------------------------------+
+ */
+
+/* $Id$ */
+
+#include "php.h"
+
+#if DBA_DBM
+#include "php3_dbm.h"
+
+#include <dbm.h>
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define DBM_DATA dba_dbm_data *dba = info->dbf
+#define DBM_GKEY datum gkey; gkey.dptr = (char *) key; gkey.dsize = keylen
+
+#ifndef PATH_MAX
+#define PATH_MAX 255
+#endif
+
+#define TRUNC_IT(extension, mode) \
+	snprintf(buf, PATH_MAX, "%s" extension, info->path); \
+	buf[PATH_MAX] = '\0'; \
+	if((fd = open(buf, O_CREAT | mode | O_WRONLY, filemode)) == -1) \
+		return FAILURE; \
+	close(fd);
+
+
+typedef struct {
+	datum nextkey;
+} dba_dbm_data;
+
+DBA_OPEN_FUNC(dbm)
+{
+	int fd;
+	int filemode = 0644;
+
+	if(info->argc > 0) {
+		convert_to_long(info->argv[0]);
+		filemode = info->argv[0]->value.lval;
+	}
+	
+	if(info->mode == DBA_TRUNC) {
+		char buf[PATH_MAX + 1];
+
+		/* dbm/ndbm original */
+		TRUNC_IT(".pag", O_TRUNC);
+		TRUNC_IT(".dir", O_TRUNC);
+	}
+
+	if(info->mode == DBA_CREAT) {
+		char buf[PATH_MAX + 1];
+
+		TRUNC_IT(".pag", 0);
+		TRUNC_IT(".dir", 0);
+	}
+
+	if(dbminit((char *) info->path) == -1) {
+		return FAILURE;
+	}
+
+	info->dbf = calloc(sizeof(dba_dbm_data), 1);
+	return SUCCESS;
+}
+
+DBA_CLOSE_FUNC(dbm)
+{
+	free(info->dbf);
+	dbmclose();
+}
+
+DBA_FETCH_FUNC(dbm)
+{
+	datum gval;
+	char *new = NULL;
+
+	DBM_GKEY;
+	gval = fetch(gkey);
+	if(gval.dptr) {
+		if(newlen) *newlen = gval.dsize;
+		new = estrndup(gval.dptr, gval.dsize);
+	}
+	return new;
+}
+
+DBA_UPDATE_FUNC(dbm)
+{
+	datum gval;
+
+	DBM_GKEY;
+	gval.dptr = (char *) val;
+	gval.dsize = vallen;
+	
+	return (store(gkey, gval) == -1 ? FAILURE : SUCCESS);
+}
+
+DBA_EXISTS_FUNC(dbm)
+{
+	datum gval;
+	DBM_GKEY;
+	
+	gval = fetch(gkey);
+	if(gval.dptr) {
+		return SUCCESS;
+	}
+	return FAILURE;
+}
+
+DBA_DELETE_FUNC(dbm)
+{
+	DBM_GKEY;
+	return(delete(gkey) == -1 ? FAILURE : SUCCESS);
+}
+
+DBA_FIRSTKEY_FUNC(dbm)
+{
+	DBM_DATA;
+	datum gkey;
+	char *key = NULL;
+
+	gkey = firstkey();
+	if(gkey.dptr) {
+		if(newlen) *newlen = gkey.dsize;
+		key = estrndup(gkey.dptr, gkey.dsize);
+		dba->nextkey = gkey;
+	} else
+		dba->nextkey.dptr = NULL;
+	return key;
+}
+
+DBA_NEXTKEY_FUNC(dbm)
+{
+	DBM_DATA;
+	datum gkey;
+	char *nkey = NULL;
+	
+	if(!dba->nextkey.dptr) return NULL;
+	
+	gkey = nextkey(dba->nextkey);
+	if(gkey.dptr) {
+		if(newlen) *newlen = gkey.dsize;
+		nkey = estrndup(gkey.dptr, gkey.dsize);
+		dba->nextkey = gkey;
+	} else
+		dba->nextkey.dptr = NULL;
+	return nkey;
+}
+
+DBA_OPTIMIZE_FUNC(dbm)
+{
+	/* dummy */
+	return SUCCESS;
+}
+
+DBA_SYNC_FUNC(dbm)
+{
+	return SUCCESS;
+}
+
+#endif