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https://github.com/chatmail/core.git
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406 lines
15 KiB
Rust
406 lines
15 KiB
Rust
use crate::types::*;
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/*
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Copyright (c) 2010 Serge A. Zaitsev
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/* *
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* JSON type identifier. Basic types are:
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* o Object
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* o Array
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* o String
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* o Other primitive: number, boolean (true/false) or null
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*/
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pub type jsmntype_t = libc::c_uint;
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pub const JSMN_PRIMITIVE: jsmntype_t = 4;
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pub const JSMN_STRING: jsmntype_t = 3;
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pub const JSMN_ARRAY: jsmntype_t = 2;
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pub const JSMN_OBJECT: jsmntype_t = 1;
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pub const JSMN_UNDEFINED: jsmntype_t = 0;
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pub type jsmnerr = libc::c_int;
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/* The string is not a full JSON packet, more bytes expected */
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pub const JSMN_ERROR_PART: jsmnerr = -3;
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/* Invalid character inside JSON string */
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pub const JSMN_ERROR_INVAL: jsmnerr = -2;
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/* Not enough tokens were provided */
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pub const JSMN_ERROR_NOMEM: jsmnerr = -1;
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/* *
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* JSON token description.
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* type type (object, array, string etc.)
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* start start position in JSON data string
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* end end position in JSON data string
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*/
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#[derive(Copy, Clone)]
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#[repr(C)]
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pub struct jsmntok_t {
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pub type_0: jsmntype_t,
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pub start: libc::c_int,
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pub end: libc::c_int,
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pub size: libc::c_int,
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}
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/* *
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* JSON parser. Contains an array of token blocks available. Also stores
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* the string being parsed now and current position in that string
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*/
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#[derive(Copy, Clone)]
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#[repr(C)]
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pub struct jsmn_parser {
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pub pos: libc::c_uint,
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pub toknext: libc::c_uint,
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pub toksuper: libc::c_int,
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}
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/* *
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* Create JSON parser over an array of tokens
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*/
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pub unsafe fn jsmn_init(mut parser: *mut jsmn_parser) {
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(*parser).pos = 0i32 as libc::c_uint;
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(*parser).toknext = 0i32 as libc::c_uint;
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(*parser).toksuper = -1i32;
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}
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/* *
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* Run JSON parser. It parses a JSON data string into and array of tokens, each describing
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* a single JSON object.
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*/
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pub unsafe fn jsmn_parse(
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mut parser: *mut jsmn_parser,
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mut js: *const libc::c_char,
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mut len: size_t,
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mut tokens: *mut jsmntok_t,
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mut num_tokens: libc::c_uint,
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) -> libc::c_int {
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let mut r: libc::c_int;
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let mut i: libc::c_int;
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let mut token: *mut jsmntok_t;
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let mut count: libc::c_int = (*parser).toknext as libc::c_int;
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while (*parser).pos < len as libc::c_uint
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&& *js.offset((*parser).pos as isize) as libc::c_int != '\u{0}' as i32
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{
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let mut c: libc::c_char;
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let mut type_0: jsmntype_t;
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c = *js.offset((*parser).pos as isize);
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match c as libc::c_int {
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123 | 91 => {
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count += 1;
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if !tokens.is_null() {
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token = jsmn_alloc_token(parser, tokens, num_tokens as size_t);
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if token.is_null() {
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return JSMN_ERROR_NOMEM as libc::c_int;
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}
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if (*parser).toksuper != -1i32 {
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let ref mut fresh0 = (*tokens.offset((*parser).toksuper as isize)).size;
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*fresh0 += 1
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}
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(*token).type_0 = (if c as libc::c_int == '{' as i32 {
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JSMN_OBJECT as libc::c_int
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} else {
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JSMN_ARRAY as libc::c_int
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}) as jsmntype_t;
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(*token).start = (*parser).pos as libc::c_int;
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(*parser).toksuper =
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(*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int
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}
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}
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125 | 93 => {
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if !tokens.is_null() {
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type_0 = (if c as libc::c_int == '}' as i32 {
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JSMN_OBJECT as libc::c_int
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} else {
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JSMN_ARRAY as libc::c_int
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}) as jsmntype_t;
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i = (*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int;
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while i >= 0i32 {
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token = &mut *tokens.offset(i as isize) as *mut jsmntok_t;
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if (*token).start != -1i32 && (*token).end == -1i32 {
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if (*token).type_0 as libc::c_uint != type_0 as libc::c_uint {
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return JSMN_ERROR_INVAL as libc::c_int;
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}
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(*parser).toksuper = -1i32;
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(*token).end =
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(*parser).pos.wrapping_add(1i32 as libc::c_uint) as libc::c_int;
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break;
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} else {
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i -= 1
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}
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}
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if i == -1i32 {
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return JSMN_ERROR_INVAL as libc::c_int;
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}
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while i >= 0i32 {
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token = &mut *tokens.offset(i as isize) as *mut jsmntok_t;
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if (*token).start != -1i32 && (*token).end == -1i32 {
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(*parser).toksuper = i;
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break;
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} else {
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i -= 1
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}
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}
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}
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}
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34 => {
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r = jsmn_parse_string(parser, js, len, tokens, num_tokens as size_t);
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if r < 0i32 {
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return r;
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}
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count += 1;
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if (*parser).toksuper != -1i32 && !tokens.is_null() {
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let ref mut fresh1 = (*tokens.offset((*parser).toksuper as isize)).size;
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*fresh1 += 1
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}
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}
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9 | 13 | 10 | 32 => {}
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58 => {
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(*parser).toksuper =
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(*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int
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}
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44 => {
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if !tokens.is_null()
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&& (*parser).toksuper != -1i32
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&& (*tokens.offset((*parser).toksuper as isize)).type_0 as libc::c_uint
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!= JSMN_ARRAY as libc::c_int as libc::c_uint
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&& (*tokens.offset((*parser).toksuper as isize)).type_0 as libc::c_uint
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!= JSMN_OBJECT as libc::c_int as libc::c_uint
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{
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i = (*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int;
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while i >= 0i32 {
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if (*tokens.offset(i as isize)).type_0 as libc::c_uint
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== JSMN_ARRAY as libc::c_int as libc::c_uint
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|| (*tokens.offset(i as isize)).type_0 as libc::c_uint
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== JSMN_OBJECT as libc::c_int as libc::c_uint
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{
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if (*tokens.offset(i as isize)).start != -1i32
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&& (*tokens.offset(i as isize)).end == -1i32
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{
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(*parser).toksuper = i;
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break;
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}
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}
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i -= 1
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}
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}
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}
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_ => {
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r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens as size_t);
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if r < 0i32 {
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return r;
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}
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count += 1;
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if (*parser).toksuper != -1i32 && !tokens.is_null() {
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let ref mut fresh2 = (*tokens.offset((*parser).toksuper as isize)).size;
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*fresh2 += 1
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}
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}
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}
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(*parser).pos = (*parser).pos.wrapping_add(1)
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}
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if !tokens.is_null() {
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i = (*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int;
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while i >= 0i32 {
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if (*tokens.offset(i as isize)).start != -1i32
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&& (*tokens.offset(i as isize)).end == -1i32
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{
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return JSMN_ERROR_PART as libc::c_int;
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}
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i -= 1
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}
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}
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count
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}
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/* *
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* Fills next available token with JSON primitive.
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*/
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unsafe fn jsmn_parse_primitive(
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mut parser: *mut jsmn_parser,
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mut js: *const libc::c_char,
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mut len: size_t,
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mut tokens: *mut jsmntok_t,
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mut num_tokens: size_t,
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) -> libc::c_int {
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let mut token: *mut jsmntok_t;
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let mut start: libc::c_int;
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start = (*parser).pos as libc::c_int;
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while (*parser).pos < len as libc::c_uint
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&& *js.offset((*parser).pos as isize) as libc::c_int != '\u{0}' as i32
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{
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match *js.offset((*parser).pos as isize) as libc::c_int {
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58 | 9 | 13 | 10 | 32 | 44 | 93 | 125 => {
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break;
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}
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_ => {}
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}
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if (*js.offset((*parser).pos as isize) as libc::c_int) < 32i32
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|| *js.offset((*parser).pos as isize) as libc::c_int >= 127i32
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{
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(*parser).pos = start as libc::c_uint;
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return JSMN_ERROR_INVAL as libc::c_int;
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}
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(*parser).pos = (*parser).pos.wrapping_add(1)
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}
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if tokens.is_null() {
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(*parser).pos = (*parser).pos.wrapping_sub(1);
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return 0i32;
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}
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token = jsmn_alloc_token(parser, tokens, num_tokens);
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if token.is_null() {
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(*parser).pos = start as libc::c_uint;
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return JSMN_ERROR_NOMEM as libc::c_int;
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}
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jsmn_fill_token(token, JSMN_PRIMITIVE, start, (*parser).pos as libc::c_int);
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(*parser).pos = (*parser).pos.wrapping_sub(1);
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0
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}
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/* *
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* Fills token type and boundaries.
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*/
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unsafe fn jsmn_fill_token(
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mut token: *mut jsmntok_t,
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mut type_0: jsmntype_t,
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mut start: libc::c_int,
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mut end: libc::c_int,
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) {
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(*token).type_0 = type_0;
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(*token).start = start;
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(*token).end = end;
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(*token).size = 0i32;
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}
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/*
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Copyright (c) 2010 Serge A. Zaitsev
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
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|
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The above copyright notice and this permission notice shall be included in
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|
all copies or substantial portions of the Software.
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|
|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/* *
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* Allocates a fresh unused token from the token pool.
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*/
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unsafe fn jsmn_alloc_token(
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mut parser: *mut jsmn_parser,
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mut tokens: *mut jsmntok_t,
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mut num_tokens: size_t,
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) -> *mut jsmntok_t {
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let mut tok: *mut jsmntok_t;
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if (*parser).toknext as size_t >= num_tokens {
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return 0 as *mut jsmntok_t;
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}
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let fresh3 = (*parser).toknext;
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(*parser).toknext = (*parser).toknext.wrapping_add(1);
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tok = &mut *tokens.offset(fresh3 as isize) as *mut jsmntok_t;
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(*tok).end = -1i32;
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(*tok).start = (*tok).end;
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(*tok).size = 0i32;
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tok
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}
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/* *
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* Fills next token with JSON string.
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*/
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unsafe fn jsmn_parse_string(
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mut parser: *mut jsmn_parser,
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mut js: *const libc::c_char,
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mut len: size_t,
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mut tokens: *mut jsmntok_t,
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mut num_tokens: size_t,
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) -> libc::c_int {
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let mut token: *mut jsmntok_t;
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let mut start: libc::c_int = (*parser).pos as libc::c_int;
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(*parser).pos = (*parser).pos.wrapping_add(1);
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while ((*parser).pos as size_t) < len
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&& *js.offset((*parser).pos as isize) as libc::c_int != '\u{0}' as i32
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{
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let mut c: libc::c_char = *js.offset((*parser).pos as isize);
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if c as libc::c_int == '\"' as i32 {
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if tokens.is_null() {
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return 0i32;
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}
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token = jsmn_alloc_token(parser, tokens, num_tokens);
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if token.is_null() {
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(*parser).pos = start as libc::c_uint;
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return JSMN_ERROR_NOMEM as libc::c_int;
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}
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jsmn_fill_token(
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token,
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JSMN_STRING,
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start + 1i32,
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(*parser).pos as libc::c_int,
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);
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return 0i32;
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}
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if c as libc::c_int == '\\' as i32 && ((*parser).pos.wrapping_add(1) as size_t) < len {
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let mut i: libc::c_int;
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(*parser).pos = (*parser).pos.wrapping_add(1);
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match *js.offset((*parser).pos as isize) as libc::c_int {
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34 | 47 | 92 | 98 | 102 | 114 | 110 | 116 => {}
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117 => {
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(*parser).pos = (*parser).pos.wrapping_add(1);
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i = 0i32;
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while i < 4i32
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&& ((*parser).pos as size_t) < len
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&& *js.offset((*parser).pos as isize) as libc::c_int != '\u{0}' as i32
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{
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if !(*js.offset((*parser).pos as isize) as libc::c_int >= 48i32
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&& *js.offset((*parser).pos as isize) as libc::c_int <= 57i32
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|| *js.offset((*parser).pos as isize) as libc::c_int >= 65i32
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&& *js.offset((*parser).pos as isize) as libc::c_int <= 70i32
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|| *js.offset((*parser).pos as isize) as libc::c_int >= 97i32
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&& *js.offset((*parser).pos as isize) as libc::c_int <= 102i32)
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{
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(*parser).pos = start as libc::c_uint;
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return JSMN_ERROR_INVAL as libc::c_int;
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}
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(*parser).pos = (*parser).pos.wrapping_add(1);
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i += 1
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}
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(*parser).pos = (*parser).pos.wrapping_sub(1)
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}
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_ => {
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(*parser).pos = start as libc::c_uint;
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return JSMN_ERROR_INVAL as libc::c_int;
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}
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}
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}
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(*parser).pos = (*parser).pos.wrapping_add(1)
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}
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(*parser).pos = start as libc::c_uint;
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JSMN_ERROR_PART as libc::c_int
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}
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