unleashed-firmware/lib/mjs/common/cs_file.c
Nikolay Minaylov 0154018363
[FL-3579, FL-3601, FL-3714] JavaScript runner (#3286)
* FBT: cdefines to env, libs order
* API: strtod, modf, itoa, calloc
* Apps: elk js
* Apps: mjs
* JS: scripts as assets
* mjs: composite resolver
* mjs: stack trace
* ELK JS example removed
* MJS thread, MJS lib modified to support script interruption
* JS console UI
* Module system, BadUSB bindings rework
* JS notifications, simple dialog, BadUSB demo
* Custom dialogs, dialog demo
* MJS as system library, some dirty hacks to make it compile
* Plugin-based js modules
* js_uart(BadUART) module
* js_uart: support for byte array arguments
* Script icon and various fixes
* File browser: multiple extensions filter, running js scripts from app loader
* Running js scripts from archive browser
* JS Runner as system app
* Example scripts moved to /ext/apps/Scripts
* JS bytecode listing generation
* MJS builtin printf cleanup
* JS examples cleanup
* mbedtls version fix
* Unused lib cleanup
* Making PVS happy & TODOs cleanup
* TODOs cleanup #2
* MJS: initial typed arrays support
* JS: fix mem leak in uart destructor

Co-authored-by: SG <who.just.the.doctor@gmail.com>
Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2024-02-12 15:54:32 +07:00

65 lines
1.8 KiB
C

/*
* Copyright (c) 2014-2018 Cesanta Software Limited
* All rights reserved
*
* Licensed under the Apache License, Version 2.0 (the ""License"");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an ""AS IS"" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "cs_file.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef CS_MMAP
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#endif
#ifdef CS_MMAP
char* cs_read_file(const char* path, size_t* size) WEAK;
char* cs_read_file(const char* path, size_t* size) {
FILE* fp;
char* data = NULL;
if((fp = fopen(path, "rb")) == NULL) {
} else if(fseek(fp, 0, SEEK_END) != 0) {
fclose(fp);
} else {
*size = ftell(fp);
data = (char*)malloc(*size + 1);
if(data != NULL) {
fseek(fp, 0, SEEK_SET); /* Some platforms might not have rewind(), Oo */
if(fread(data, 1, *size, fp) != *size) {
free(data);
return NULL;
}
data[*size] = '\0';
}
fclose(fp);
}
return data;
}
char* cs_mmap_file(const char* path, size_t* size) WEAK;
char* cs_mmap_file(const char* path, size_t* size) {
char* r;
int fd = open(path, O_RDONLY, 0);
struct stat st;
if(fd < 0) return NULL;
fstat(fd, &st);
*size = (size_t)st.st_size;
r = (char*)mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if(r == MAP_FAILED) return NULL;
return r;
}
#endif