[EDIT] FILE: php_smart_string.h

/* +----------------------------------------------------------------------+ | PHP Version 7 | +----------------------------------------------------------------------+ | Copyright (c) 1997-2018 The PHP Group | +----------------------------------------------------------------------+ | This source file is subject to version 3.01 of the PHP license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.php.net/license/3_01.txt | | If you did not receive a copy of the PHP license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@php.net so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Author: Sascha Schumann <sascha@schumann.cx> | | Xinchen Hui <laruence@php.net> | +----------------------------------------------------------------------+ */ /* $Id$ */ #ifndef PHP_SMART_STRING_H #define PHP_SMART_STRING_H #include "php_smart_string_public.h" #include <stdlib.h> #ifndef SMART_STR_USE_REALLOC #include <zend.h> #endif #define smart_string_0(x) do { \ if ((x)->c) { \ (x)->c[(x)->len] = '\0'; \ } \ } while (0) #ifndef SMART_STRING_PREALLOC #define SMART_STRING_PREALLOC 128 #endif #ifndef SMART_STRING_START_SIZE #define SMART_STRING_START_SIZE 78 #endif #ifdef SMART_STRING_USE_REALLOC #define SMART_STRING_REALLOC(a,b,c) realloc((a),(b)) #else #define SMART_STRING_REALLOC(a,b,c) perealloc((a),(b),(c)) #endif #define SMART_STRING_DO_REALLOC(d, what) \ (d)->c = (char *) SMART_STRING_REALLOC((d)->c, (d)->a + 1, (what)) #define smart_string_alloc4(d, n, what, newlen) do { \ if (!(d)->c) { \ (d)->len = 0; \ newlen = (n); \ (d)->a = newlen < SMART_STRING_START_SIZE \ ? SMART_STRING_START_SIZE \ : newlen + SMART_STRING_PREALLOC; \ SMART_STRING_DO_REALLOC(d, what); \ } else { \ if(UNEXPECTED((size_t)n > SIZE_MAX - (d)->len)) { \ zend_error(E_ERROR, "String size overflow"); \ } \ newlen = (d)->len + (n); \ if (newlen >= (d)->a) { \ (d)->a = newlen + SMART_STRING_PREALLOC; \ SMART_STRING_DO_REALLOC(d, what); \ } \ } \ } while (0) #define smart_string_alloc(d, n, what) \ smart_string_alloc4((d), (n), (what), newlen) /* wrapper */ #define smart_string_appends_ex(dest, src, what) \ smart_string_appendl_ex((dest), (src), strlen(src), (what)) #define smart_string_appends(dest, src) \ smart_string_appendl((dest), (src), strlen(src)) #define smart_string_appendc(dest, c) \ smart_string_appendc_ex((dest), (c), 0) #define smart_string_free(s) \ smart_string_free_ex((s), 0) #define smart_string_appendl(dest, src, len) \ smart_string_appendl_ex((dest), (src), (len), 0) #define smart_string_append(dest, src) \ smart_string_append_ex((dest), (src), 0) #define smart_string_append_long(dest, val) \ smart_string_append_long_ex((dest), (val), 0) #define smart_string_append_unsigned(dest, val) \ smart_string_append_unsigned_ex((dest), (val), 0) #define smart_string_appendc_ex(dest, ch, what) do { \ size_t __nl; \ smart_string_alloc4((dest), 1, (what), __nl); \ (dest)->len = __nl; \ ((unsigned char *) (dest)->c)[(dest)->len - 1] = (ch); \ } while (0) #define smart_string_free_ex(s, what) do { \ smart_string *__s = (smart_string *) (s); \ if (__s->c) { \ pefree(__s->c, what); \ __s->c = NULL; \ } \ __s->a = __s->len = 0; \ } while (0) #define smart_string_appendl_ex(dest, src, nlen, what) do { \ size_t __nl; \ smart_string *__dest = (smart_string *) (dest); \ \ smart_string_alloc4(__dest, (nlen), (what), __nl); \ memcpy(__dest->c + __dest->len, (src), (nlen)); \ __dest->len = __nl; \ } while (0) #define smart_string_append_generic_ex(dest, num, type, vartype, func) do { \ char __b[32]; \ char *__t = zend_print##func##_to_buf(__b + sizeof(__b) - 1, (num)); \ smart_string_appendl_ex((dest), __t, __b + sizeof(__b) - 1 - __t, (type)); \ } while (0) #define smart_string_append_unsigned_ex(dest, num, type) \ smart_string_append_generic_ex((dest), (num), (type), zend_ulong, _ulong) #define smart_string_append_long_ex(dest, num, type) \ smart_string_append_generic_ex((dest), (num), (type), zend_ulong, _long) #define smart_string_append_ex(dest, src, what) \ smart_string_appendl_ex((dest), ((smart_string *)(src))->c, \ ((smart_string *)(src))->len, (what)); #define smart_string_setl(dest, src, nlen) do { \ (dest)->len = (nlen); \ (dest)->a = (nlen) + 1; \ (dest)->c = (char *) (src); \ } while (0) #define smart_string_sets(dest, src) \ smart_string_setl((dest), (src), strlen(src)); #endif
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