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Fixed bug #48034 (PHP crashes when script is 8192 (8KB) bytes long)

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Dmitry Stogov
2009-04-28 07:13:43 +00:00
parent c29da1f499
commit d2a9e7bbea
1 changed files with 11 additions and 2 deletions
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main/main.c
+11 -2
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@@ -89,6 +89,13 @@
#include "SAPI.h"
#include "rfc1867.h"
#if HAVE_SYS_MMAN_H
# include <sys/mman.h>
# ifndef PAGE_SIZE
# define PAGE_SIZE 4096
# endif
#endif
/* }}} */
PHPAPI int (*php_register_internal_extensions_func)(TSRMLS_D) = php_register_internal_extensions;
@@ -1237,8 +1244,10 @@ PHPAPI int php_stream_open_for_zend_ex(const char *filename, zend_file_handle *h
handle->handle.stream.isatty = 0;
/* can we mmap immeadiately? */
memset(&handle->handle.stream.mmap, 0, sizeof(handle->handle.stream.mmap));
len = php_zend_stream_fsizer(stream TSRMLS_CC) + ZEND_MMAP_AHEAD;
if (php_stream_mmap_possible(stream)
len = php_zend_stream_fsizer(stream TSRMLS_CC);
if (len != 0
&& ((len - 1) % PAGE_SIZE) <= PAGE_SIZE - ZEND_MMAP_AHEAD
&& php_stream_mmap_possible(stream)
&& (p = php_stream_mmap_range(stream, 0, len, PHP_STREAM_MAP_MODE_SHARED_READONLY, &mapped_len)) != NULL) {
handle->handle.stream.closer = php_zend_stream_mmap_closer;
handle->handle.stream.mmap.buf = p;