system.c

См. документацию.

 
#include <io/status_loggers.h>
#include "mem/vmm.h"
#include "io/ports.h"
 
// FIXME: These variables gets rewritten to address 0 when
//        user types 'cd /' in shell
char* whoami    = "root";           
char* hostname  = "oem";            
char* syspath   = "/";              
char* getSysPath(){
    return syspath;
}
 
void setSysPath(char* path){
    kfree(syspath);
    
    syspath = (char*)kmalloc(sizeof(char) * (strlen(path) + 1));
    
    memset(syspath,0,strlen(path)+1);
    memcpy(syspath,path,strlen(path));
    
    // syspath[strlen(path)-1] = 0;
}
 
void reboot() {
    qemu_log("REBOOT");
 
    uint8_t good = 0x02;
 
    while (good & 0x02)
        good = inb(0x64);
    outb(0x64, 0xFE);
    
    __asm__ volatile("hlt");
}
 
void shutdown(){
    qemu_log("SHUTDOWN");
    outw(0xB004, 0x2000);
    outw(0x604,  0x2000);
    outw(0x4004, 0x3400);
}
 
char* getUserName(){
    return whoami;
}
 
char* setUserName(char* new_name){
    kfree(whoami);
 
    size_t len = strlen(new_name) + 1;
    
    whoami = kcalloc(len, 1);
    
    memcpy(whoami, new_name, strlen(new_name));
 
    whoami[len] = 0;
    
    return whoami;
}
 
char* getHostname(){
    return hostname;
}
 
char* setHostname(char* new_name){
    if (strlen(new_name) < 2){
        tty_error("[ОШИБКА] Имя устройства должно быть больше 2 символов");
        return hostname;
    }
    
    kfree(hostname);
 
    hostname = (char*)kmalloc(sizeof(char)*(strlen(new_name)+1));
    
    memset(hostname,0,strlen(new_name)+1);
    memcpy(hostname, new_name, strlen(new_name));
    
    // hostname[strlen(new)-1] = 0;
    return hostname;
}