mirror of
https://github.com/php/php-src.git
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184 lines
5.8 KiB
C
184 lines
5.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP HTML Embedded Scripting Language Version 3.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997,1998 PHP Development Team (See Credits file) |
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+----------------------------------------------------------------------+
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| This program is free software; you can redistribute it and/or modify |
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| it under the terms of one of the following licenses: |
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| A) the GNU General Public License as published by the Free Software |
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| Foundation; either version 2 of the License, or (at your option) |
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| any later version. |
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| |
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| B) the PHP License as published by the PHP Development Team and |
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| included in the distribution in the file: LICENSE |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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| |
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| You should have received a copy of both licenses referred to here. |
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| If you did not, or have any questions about PHP licensing, please |
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| contact core@php.net. |
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+----------------------------------------------------------------------+
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| Authors: Brian Schaffner <brian@tool.net> |
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| Shane Caraveo <shane@caraveo.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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#include "php.h"
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#include "dl.h"
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#include "php_globals.h"
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#if HAVE_LIBDL
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#include <stdlib.h>
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#include <stdio.h>
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#ifndef RTLD_LAZY
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# define RTLD_LAZY 1 /* Solaris 1, FreeBSD's (2.1.7.1 and older) */
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#endif
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#if HAVE_STRING_H
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#include <string.h>
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#else
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#include <strings.h>
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#endif
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#if MSVC5
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#include "win32/param.h"
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#include "win32/winutil.h"
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#else
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#include <sys/param.h>
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#endif
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function_entry dl_functions[] = {
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{"dl", dl, NULL},
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{NULL, NULL, NULL}
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};
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php3_module_entry dl_module_entry = {
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"PHP_DL", dl_functions, NULL, NULL, NULL, NULL, php3_info_dl, STANDARD_MODULE_PROPERTIES
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};
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#endif
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/* {{{ proto int dl(string extension_filename)
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Load a PHP extension at runtime */
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void dl(INTERNAL_FUNCTION_PARAMETERS)
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{
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pval *file;
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PLS_FETCH();
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/* obtain arguments */
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if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &file) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string(file);
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if (!PG(enable_dl)) {
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php3_error(E_ERROR, "Dynamically loaded extentions aren't enabled.");
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} else if (PG(safe_mode)) {
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php3_error(E_ERROR, "Dynamically loaded extensions aren't allowed when running in SAFE MODE.");
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} else {
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php3_dl(file,MODULE_TEMPORARY,return_value);
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}
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}
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/* }}} */
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#if HAVE_LIBDL
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void php3_dl(pval *file,int type,pval *return_value)
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{
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void *handle;
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char libpath[MAXPATHLEN + 1];
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php3_module_entry *module_entry,*tmp;
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php3_module_entry *(*get_module)(void);
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PLS_FETCH();
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if (cfg_get_string("extension_dir",&PG(extension_dir))==SUCCESS && PG(extension_dir)){
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int extension_dir_len = strlen(PG(extension_dir));
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if (PG(extension_dir)[extension_dir_len-1]=='/' || PG(extension_dir)[extension_dir_len-1]=='\\') {
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sprintf(libpath,"%s%s",PG(extension_dir),file->value.str.val); /* SAFE */
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} else {
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sprintf(libpath,"%s/%s",PG(extension_dir),file->value.str.val); /* SAFE */
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}
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} else {
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sprintf(libpath,"%s",file->value.str.val); /* SAFE */
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}
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/* load dynamic symbol */
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handle = dlopen(libpath, RTLD_LAZY);
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if (!handle) {
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#if MSVC5
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php3_error(E_ERROR,"Unable to load dynamic library '%s'<br>\n%s",libpath,php3_win_err());
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#else
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php3_error(E_ERROR,"Unable to load dynamic library '%s' - %s",libpath,dlerror());
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#endif
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RETURN_FALSE;
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}
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get_module = (php3_module_entry *(*)(void)) dlsym(handle, "get_module");
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if (!get_module) {
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dlclose(handle);
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php3_error(E_CORE_WARNING,"Invalid library (maybe not a PHP3 library) '%s' ",file->value.str.val);
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RETURN_FALSE;
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}
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module_entry = get_module();
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module_entry->type = type;
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module_entry->module_number = zend_next_free_module();
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if (module_entry->module_startup_func) {
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if (module_entry->module_startup_func(type, module_entry->module_number)==FAILURE) {
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php3_error(E_CORE_WARNING,"%s: Unable to initialize module",module_entry->name);
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dlclose(handle);
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RETURN_FALSE;
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}
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}
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zend_register_module(module_entry);
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if (module_entry->request_startup_func) {
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if (module_entry->request_startup_func(type, module_entry->module_number)) {
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php3_error(E_CORE_WARNING,"%s: Unable to initialize module",module_entry->name);
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dlclose(handle);
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RETURN_FALSE;
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}
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}
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/* update the .request_started property... */
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if (_php3_hash_find(&module_registry,module_entry->name,strlen(module_entry->name)+1,(void **) &tmp)==FAILURE) {
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php3_error(E_ERROR,"%s: Loaded module got lost",module_entry->name);
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RETURN_FALSE;
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}
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tmp->request_started=1;
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tmp->handle = handle;
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RETURN_TRUE;
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}
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void php3_info_dl(void)
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{
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PUTS("Dynamic Library support enabled.\n");
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}
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#else
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void php3_dl(pval *file,int type,pval *return_value)
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{
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php3_error(E_WARNING,"Cannot dynamically load %s - dynamic modules are not supported",file->value.str.val);
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RETURN_FALSE;
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}
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#endif
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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