php-src/Zend/zend_ini.c

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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
2014-01-03 11:08:10 +08:00
| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
2001-12-11 23:16:21 +08:00
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
2001-12-11 23:16:21 +08:00
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "zend.h"
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#include "zend_qsort.h"
#include "zend_API.h"
#include "zend_ini.h"
#include "zend_alloc.h"
#include "zend_operators.h"
#include "zend_strtod.h"
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static HashTable *registered_zend_ini_directives;
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#define NO_VALUE_PLAINTEXT "no value"
#define NO_VALUE_HTML "<i>no value</i>"
/*
* hash_apply functions
*/
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static int zend_remove_ini_entries(zval *el, void *arg) /* {{{ */
{
zend_ini_entry *ini_entry = (zend_ini_entry *)Z_PTR_P(el);
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int module_number = *(int *)arg;
if (ini_entry->module_number == module_number) {
return 1;
} else {
return 0;
}
}
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/* }}} */
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static int zend_restore_ini_entry_cb(zend_ini_entry *ini_entry, int stage) /* {{{ */
{
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int result = FAILURE;
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if (ini_entry->modified) {
if (ini_entry->on_modify) {
zend_try {
/* even if on_modify bails out, we have to continue on with restoring,
since there can be allocated variables that would be freed on MM shutdown
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and would lead to memory corruption later ini entry is modified again */
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result = ini_entry->on_modify(ini_entry, ini_entry->orig_value, ini_entry->mh_arg1, ini_entry->mh_arg2, ini_entry->mh_arg3, stage);
} zend_end_try();
}
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if (stage == ZEND_INI_STAGE_RUNTIME && result == FAILURE) {
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/* runtime failure is OK */
return 1;
}
if (ini_entry->value != ini_entry->orig_value) {
zend_string_release(ini_entry->value);
}
ini_entry->value = ini_entry->orig_value;
ini_entry->modifiable = ini_entry->orig_modifiable;
ini_entry->modified = 0;
ini_entry->orig_value = NULL;
ini_entry->orig_modifiable = 0;
}
return 0;
}
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/* }}} */
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static int zend_restore_ini_entry_wrapper(zval *el) /* {{{ */
{
zend_ini_entry *ini_entry = (zend_ini_entry *)Z_PTR_P(el);
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zend_restore_ini_entry_cb(ini_entry, ZEND_INI_STAGE_DEACTIVATE);
return 1;
}
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/* }}} */
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static void free_ini_entry(zval *zv) /* {{{ */
{
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zend_ini_entry *entry = (zend_ini_entry*)Z_PTR_P(zv);
zend_string_release(entry->name);
if (entry->value) {
zend_string_release(entry->value);
}
if (entry->orig_value) {
zend_string_release(entry->orig_value);
}
free(entry);
}
/* }}} */
/*
* Startup / shutdown
*/
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ZEND_API int zend_ini_startup(void) /* {{{ */
{
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registered_zend_ini_directives = (HashTable *) malloc(sizeof(HashTable));
EG(ini_directives) = registered_zend_ini_directives;
EG(modified_ini_directives) = NULL;
EG(error_reporting_ini_entry) = NULL;
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zend_hash_init_ex(registered_zend_ini_directives, 128, NULL, free_ini_entry, 1, 0);
return SUCCESS;
}
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/* }}} */
ZEND_API int zend_ini_shutdown(HashTable *ini_directives) /* {{{ */
{
zend_hash_destroy(ini_directives);
free(ini_directives);
return SUCCESS;
}
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/* }}} */
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ZEND_API int zend_ini_global_shutdown(void) /* {{{ */
{
zend_hash_destroy(registered_zend_ini_directives);
free(registered_zend_ini_directives);
return SUCCESS;
}
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/* }}} */
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ZEND_API int zend_ini_deactivate(void) /* {{{ */
{
if (EG(modified_ini_directives)) {
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zend_hash_apply(EG(modified_ini_directives), zend_restore_ini_entry_wrapper);
zend_hash_destroy(EG(modified_ini_directives));
FREE_HASHTABLE(EG(modified_ini_directives));
EG(modified_ini_directives) = NULL;
}
return SUCCESS;
}
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/* }}} */
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#ifdef ZTS
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static void copy_ini_entry(zval *zv) /* {{{ */
{
zend_ini_entry *old_entry = (zend_ini_entry*)Z_PTR_P(zv);
zend_ini_entry *new_entry = pemalloc(sizeof(zend_ini_entry), 1);
Z_PTR_P(zv) = new_entry;
memcpy(new_entry, old_entry, sizeof(zend_ini_entry));
if (old_entry->name) {
new_entry->name = zend_string_init(old_entry->name->val, old_entry->name->len, 1);
}
if (old_entry->value) {
new_entry->value = zend_string_init(old_entry->value->val, old_entry->value->len, 1);
}
if (old_entry->orig_value) {
new_entry->orig_value = zend_string_init(old_entry->orig_value->val, old_entry->orig_value->len, 1);
}
}
/* }}} */
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ZEND_API int zend_copy_ini_directives(void) /* {{{ */
{
EG(modified_ini_directives) = NULL;
EG(error_reporting_ini_entry) = NULL;
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EG(ini_directives) = (HashTable *) malloc(sizeof(HashTable));
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zend_hash_init_ex(EG(ini_directives), registered_zend_ini_directives->nNumOfElements, NULL, free_ini_entry, 1, 0);
zend_hash_copy(EG(ini_directives), registered_zend_ini_directives, copy_ini_entry);
return SUCCESS;
}
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/* }}} */
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#endif
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static int ini_key_compare(const void *a, const void *b) /* {{{ */
{
const Bucket *f;
const Bucket *s;
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f = (const Bucket *) a;
s = (const Bucket *) b;
if (!f->key && !s->key) { /* both numeric */
return ZEND_NORMALIZE_BOOL(f->h - s->h);
} else if (!f->key) { /* f is numeric, s is not */
return -1;
} else if (!s->key) { /* s is numeric, f is not */
return 1;
} else { /* both strings */
return zend_binary_strcasecmp(f->key->val, f->key->len, s->key->val, s->key->len);
}
}
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/* }}} */
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ZEND_API void zend_ini_sort_entries(void) /* {{{ */
{
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zend_hash_sort(EG(ini_directives), zend_qsort, ini_key_compare, 0);
}
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/* }}} */
/*
* Registration / unregistration
*/
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ZEND_API int zend_register_ini_entries(const zend_ini_entry_def *ini_entry, int module_number) /* {{{ */
{
zend_ini_entry *p;
zval *default_value;
HashTable *directives = registered_zend_ini_directives;
#ifdef ZTS
/* if we are called during the request, eg: from dl(),
* then we should not touch the global directives table,
* and should update the per-(request|thread) version instead.
* This solves two problems: one is that ini entries for dl()'d
* extensions will now work, and the second is that updating the
* global hash here from dl() is not mutex protected and can
* lead to death.
*/
if (directives != EG(ini_directives)) {
directives = EG(ini_directives);
}
#endif
while (ini_entry->name) {
p = pemalloc(sizeof(zend_ini_entry), 1);
p->name = zend_string_init(ini_entry->name, ini_entry->name_length, 1);
p->on_modify = ini_entry->on_modify;
p->mh_arg1 = ini_entry->mh_arg1;
p->mh_arg2 = ini_entry->mh_arg2;
p->mh_arg3 = ini_entry->mh_arg3;
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p->value = NULL;
p->orig_value = NULL;
p->displayer = ini_entry->displayer;
p->modifiable = ini_entry->modifiable;
p->orig_modifiable = 0;
p->modified = 0;
p->module_number = module_number;
if (zend_hash_add_ptr(directives, p->name, (void*)p) == NULL) {
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if (p->name) {
zend_string_release(p->name);
}
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zend_unregister_ini_entries(module_number);
return FAILURE;
}
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if (((default_value = zend_get_configuration_directive(p->name)) != NULL) &&
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(!p->on_modify || p->on_modify(p, Z_STR_P(default_value), p->mh_arg1, p->mh_arg2, p->mh_arg3, ZEND_INI_STAGE_STARTUP) == SUCCESS)) {
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p->value = zend_string_copy(Z_STR_P(default_value));
} else {
p->value = ini_entry->value ?
zend_string_init(ini_entry->value, ini_entry->value_length, 1) : NULL;
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if (p->on_modify) {
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p->on_modify(p, p->value, p->mh_arg1, p->mh_arg2, p->mh_arg3, ZEND_INI_STAGE_STARTUP);
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}
}
ini_entry++;
}
return SUCCESS;
}
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/* }}} */
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ZEND_API void zend_unregister_ini_entries(int module_number) /* {{{ */
{
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zend_hash_apply_with_argument(registered_zend_ini_directives, zend_remove_ini_entries, (void *) &module_number);
}
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/* }}} */
#ifdef ZTS
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static int zend_ini_refresh_cache(zval *el, void *arg) /* {{{ */
{
zend_ini_entry *p = (zend_ini_entry *)Z_PTR_P(el);
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int stage = (int)(zend_intptr_t)arg;
if (p->on_modify) {
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p->on_modify(p, p->value, p->mh_arg1, p->mh_arg2, p->mh_arg3, stage);
}
return 0;
}
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/* }}} */
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ZEND_API void zend_ini_refresh_caches(int stage) /* {{{ */
{
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zend_hash_apply_with_argument(EG(ini_directives), zend_ini_refresh_cache, (void *)(zend_intptr_t) stage);
}
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/* }}} */
#endif
ZEND_API int zend_alter_ini_entry(zend_string *name, zend_string *new_value, int modify_type, int stage) /* {{{ */
{
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return zend_alter_ini_entry_ex(name, new_value, modify_type, stage, 0);
}
/* }}} */
ZEND_API int zend_alter_ini_entry_chars(zend_string *name, const char *value, size_t value_length, int modify_type, int stage) /* {{{ */
{
int ret;
zend_string *new_value;
new_value = zend_string_init(value, value_length, stage != ZEND_INI_STAGE_RUNTIME);
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ret = zend_alter_ini_entry_ex(name, new_value, modify_type, stage, 0);
zend_string_release(new_value);
return ret;
}
/* }}} */
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ZEND_API int zend_alter_ini_entry_chars_ex(zend_string *name, const char *value, size_t value_length, int modify_type, int stage, int force_change) /* {{{ */
{
int ret;
zend_string *new_value;
new_value = zend_string_init(value, value_length, stage != ZEND_INI_STAGE_RUNTIME);
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ret = zend_alter_ini_entry_ex(name, new_value, modify_type, stage, force_change);
zend_string_release(new_value);
return ret;
}
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/* }}} */
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ZEND_API int zend_alter_ini_entry_ex(zend_string *name, zend_string *new_value, int modify_type, int stage, int force_change) /* {{{ */
{
zend_ini_entry *ini_entry;
zend_string *duplicate;
zend_bool modifiable;
zend_bool modified;
if ((ini_entry = zend_hash_find_ptr(EG(ini_directives), name)) == NULL) {
return FAILURE;
}
modifiable = ini_entry->modifiable;
modified = ini_entry->modified;
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if (stage == ZEND_INI_STAGE_ACTIVATE && modify_type == ZEND_INI_SYSTEM) {
ini_entry->modifiable = ZEND_INI_SYSTEM;
}
if (!force_change) {
if (!(ini_entry->modifiable & modify_type)) {
return FAILURE;
}
}
if (!EG(modified_ini_directives)) {
ALLOC_HASHTABLE(EG(modified_ini_directives));
zend_hash_init(EG(modified_ini_directives), 8, NULL, NULL, 0);
}
if (!modified) {
ini_entry->orig_value = ini_entry->value;
ini_entry->orig_modifiable = modifiable;
ini_entry->modified = 1;
zend_hash_add_ptr(EG(modified_ini_directives), name, ini_entry);
}
duplicate = zend_string_copy(new_value);
if (!ini_entry->on_modify
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|| ini_entry->on_modify(ini_entry, duplicate, ini_entry->mh_arg1, ini_entry->mh_arg2, ini_entry->mh_arg3, stage) == SUCCESS) {
if (modified && ini_entry->orig_value != ini_entry->value) { /* we already changed the value, free the changed value */
zend_string_release(ini_entry->value);
}
ini_entry->value = duplicate;
} else {
zend_string_release(duplicate);
return FAILURE;
}
return SUCCESS;
}
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/* }}} */
ZEND_API int zend_restore_ini_entry(zend_string *name, int stage) /* {{{ */
{
zend_ini_entry *ini_entry;
if ((ini_entry = zend_hash_find_ptr(EG(ini_directives), name)) == NULL ||
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(stage == ZEND_INI_STAGE_RUNTIME && (ini_entry->modifiable & ZEND_INI_USER) == 0)) {
return FAILURE;
}
if (EG(modified_ini_directives)) {
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if (zend_restore_ini_entry_cb(ini_entry, stage) == 0) {
zend_hash_del(EG(modified_ini_directives), name);
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} else {
return FAILURE;
}
}
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return SUCCESS;
}
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/* }}} */
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ZEND_API int zend_ini_register_displayer(char *name, uint name_length, void (*displayer)(zend_ini_entry *ini_entry, int type)) /* {{{ */
{
zend_ini_entry *ini_entry;
ini_entry = zend_hash_str_find_ptr(registered_zend_ini_directives, name, name_length);
if (ini_entry == NULL) {
return FAILURE;
}
ini_entry->displayer = displayer;
return SUCCESS;
}
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/* }}} */
/*
* Data retrieval
*/
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ZEND_API zend_long zend_ini_long(char *name, uint name_length, int orig) /* {{{ */
{
zend_ini_entry *ini_entry;
ini_entry = zend_hash_str_find_ptr(EG(ini_directives), name, name_length);
if (ini_entry) {
if (orig && ini_entry->modified) {
return (ini_entry->orig_value ? ZEND_STRTOL(ini_entry->orig_value->val, NULL, 0) : 0);
} else {
return (ini_entry->value ? ZEND_STRTOL(ini_entry->value->val, NULL, 0) : 0);
}
}
return 0;
}
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/* }}} */
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ZEND_API double zend_ini_double(char *name, uint name_length, int orig) /* {{{ */
{
zend_ini_entry *ini_entry;
ini_entry = zend_hash_str_find_ptr(EG(ini_directives), name, name_length);
if (ini_entry) {
if (orig && ini_entry->modified) {
return (double) (ini_entry->orig_value ? zend_strtod(ini_entry->orig_value->val, NULL) : 0.0);
} else {
return (double) (ini_entry->value ? zend_strtod(ini_entry->value->val, NULL) : 0.0);
}
}
return 0.0;
}
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/* }}} */
ZEND_API char *zend_ini_string_ex(char *name, uint name_length, int orig, zend_bool *exists) /* {{{ */
{
zend_ini_entry *ini_entry;
ini_entry = zend_hash_str_find_ptr(EG(ini_directives), name, name_length);
if (ini_entry) {
if (exists) {
*exists = 1;
}
if (orig && ini_entry->modified) {
return ini_entry->orig_value ? ini_entry->orig_value->val : NULL;
} else {
return ini_entry->value ? ini_entry->value->val : NULL;
}
} else {
if (exists) {
*exists = 0;
}
return NULL;
}
}
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/* }}} */
ZEND_API char *zend_ini_string(char *name, uint name_length, int orig) /* {{{ */
{
zend_bool exists = 1;
char *return_value;
return_value = zend_ini_string_ex(name, name_length, orig, &exists);
if (!exists) {
return NULL;
} else if (!return_value) {
return_value = "";
}
return return_value;
}
/* }}} */
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#if TONY_20070307
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static void zend_ini_displayer_cb(zend_ini_entry *ini_entry, int type) /* {{{ */
{
if (ini_entry->displayer) {
ini_entry->displayer(ini_entry, type);
} else {
char *display_string;
uint display_string_length;
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if (type == ZEND_INI_DISPLAY_ORIG && ini_entry->modified) {
if (ini_entry->orig_value) {
display_string = ini_entry->orig_value;
display_string_length = ini_entry->orig_value_length;
} else {
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if (zend_uv.html_errors) {
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display_string = NO_VALUE_HTML;
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display_string_length = sizeof(NO_VALUE_HTML) - 1;
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} else {
display_string = NO_VALUE_PLAINTEXT;
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display_string_length = sizeof(NO_VALUE_PLAINTEXT) - 1;
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}
}
} else if (ini_entry->value && ini_entry->value[0]) {
display_string = ini_entry->value;
display_string_length = ini_entry->value_length;
} else {
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if (zend_uv.html_errors) {
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display_string = NO_VALUE_HTML;
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display_string_length = sizeof(NO_VALUE_HTML) - 1;
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} else {
display_string = NO_VALUE_PLAINTEXT;
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display_string_length = sizeof(NO_VALUE_PLAINTEXT) - 1;
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}
}
ZEND_WRITE(display_string, display_string_length);
}
}
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/* }}} */
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#endif
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ZEND_INI_DISP(zend_ini_boolean_displayer_cb) /* {{{ */
{
int value;
zend_string *tmp_value;
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if (type == ZEND_INI_DISPLAY_ORIG && ini_entry->modified) {
tmp_value = (ini_entry->orig_value ? ini_entry->orig_value : NULL );
} else if (ini_entry->value) {
tmp_value = ini_entry->value;
} else {
tmp_value = NULL;
}
if (tmp_value) {
if (tmp_value->len == 4 && strcasecmp(tmp_value->val, "true") == 0) {
value = 1;
} else if (tmp_value->len == 3 && strcasecmp(tmp_value->val, "yes") == 0) {
value = 1;
} else if (tmp_value->len == 2 && strcasecmp(tmp_value->val, "on") == 0) {
value = 1;
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} else {
value = atoi(tmp_value->val);
}
} else {
value = 0;
}
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if (value) {
ZEND_PUTS("On");
} else {
ZEND_PUTS("Off");
}
}
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/* }}} */
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ZEND_INI_DISP(zend_ini_color_displayer_cb) /* {{{ */
{
char *value;
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if (type == ZEND_INI_DISPLAY_ORIG && ini_entry->modified) {
value = ini_entry->orig_value->val;
} else if (ini_entry->value) {
value = ini_entry->value->val;
} else {
value = NULL;
}
if (value) {
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if (zend_uv.html_errors) {
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zend_printf("<font style=\"color: %s\">%s</font>", value, value);
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} else {
ZEND_PUTS(value);
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}
} else {
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if (zend_uv.html_errors) {
ZEND_PUTS(NO_VALUE_HTML);
} else {
ZEND_PUTS(NO_VALUE_PLAINTEXT);
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}
}
}
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/* }}} */
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ZEND_INI_DISP(display_link_numbers) /* {{{ */
{
char *value;
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if (type == ZEND_INI_DISPLAY_ORIG && ini_entry->modified) {
value = ini_entry->orig_value->val;
} else if (ini_entry->value) {
value = ini_entry->value->val;
} else {
value = NULL;
}
if (value) {
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if (atoi(value) == -1) {
ZEND_PUTS("Unlimited");
} else {
zend_printf("%s", value);
}
}
}
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/* }}} */
/* Standard message handlers */
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ZEND_API ZEND_INI_MH(OnUpdateBool) /* {{{ */
{
zend_bool *p;
#ifndef ZTS
char *base = (char *) mh_arg2;
#else
char *base;
base = (char *) ts_resource(*((int *) mh_arg2));
#endif
p = (zend_bool *) (base+(size_t) mh_arg1);
if (new_value->len == 2 && strcasecmp("on", new_value->val) == 0) {
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*p = (zend_bool) 1;
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}
else if (new_value->len == 3 && strcasecmp("yes", new_value->val) == 0) {
*p = (zend_bool) 1;
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}
else if (new_value->len == 4 && strcasecmp("true", new_value->val) == 0) {
*p = (zend_bool) 1;
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}
else {
*p = (zend_bool) atoi(new_value->val);
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}
return SUCCESS;
}
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/* }}} */
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ZEND_API ZEND_INI_MH(OnUpdateLong) /* {{{ */
{
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zend_long *p;
#ifndef ZTS
char *base = (char *) mh_arg2;
#else
char *base;
base = (char *) ts_resource(*((int *) mh_arg2));
#endif
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p = (zend_long *) (base+(size_t) mh_arg1);
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*p = zend_atol(new_value->val, (int)new_value->len);
return SUCCESS;
}
/* }}} */
ZEND_API ZEND_INI_MH(OnUpdateLongGEZero) /* {{{ */
{
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zend_long *p, tmp;
#ifndef ZTS
char *base = (char *) mh_arg2;
#else
char *base;
base = (char *) ts_resource(*((int *) mh_arg2));
#endif
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tmp = zend_atol(new_value->val, (int)new_value->len);
if (tmp < 0) {
return FAILURE;
}
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p = (zend_long *) (base+(size_t) mh_arg1);
*p = tmp;
return SUCCESS;
}
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/* }}} */
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ZEND_API ZEND_INI_MH(OnUpdateReal) /* {{{ */
{
double *p;
#ifndef ZTS
char *base = (char *) mh_arg2;
#else
char *base;
base = (char *) ts_resource(*((int *) mh_arg2));
#endif
p = (double *) (base+(size_t) mh_arg1);
*p = zend_strtod(new_value->val, NULL);
return SUCCESS;
}
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/* }}} */
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ZEND_API ZEND_INI_MH(OnUpdateString) /* {{{ */
{
char **p;
#ifndef ZTS
char *base = (char *) mh_arg2;
#else
char *base;
base = (char *) ts_resource(*((int *) mh_arg2));
#endif
p = (char **) (base+(size_t) mh_arg1);
*p = new_value ? new_value->val : NULL;
return SUCCESS;
}
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/* }}} */
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ZEND_API ZEND_INI_MH(OnUpdateStringUnempty) /* {{{ */
{
char **p;
#ifndef ZTS
char *base = (char *) mh_arg2;
#else
char *base;
base = (char *) ts_resource(*((int *) mh_arg2));
#endif
if (new_value && !new_value->val[0]) {
return FAILURE;
}
p = (char **) (base+(size_t) mh_arg1);
*p = new_value ? new_value->val : NULL;
return SUCCESS;
}
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/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/