kolibrios/programs/system/shell/modules/module_program_console.c

#include "../program_console.h"


int program_console(int pid) {
    char name[32];
    char *buffer;
    char *buf1k;
    int result;
    int i;
    char command;
    int size;
    int is_end;

    itoa(pid, name);
    strcat(name, "-SHELL");

    buffer = NULL;
    buf1k = NULL;

    for (i = 0; i < 30;  i++) {
        result = kol_buffer_open(name, SHM_OPEN | SHM_WRITE, 0, &buffer);
        if (buffer != NULL)
            break;

        kol_sleep(2);
    }

    if (buffer == NULL)
        return 0;
    else
        size = result;

    is_end = 0;
    for (;;) {
        command = *(buffer);
    
        switch (command) {
            case SC_EXIT:
                *buffer = SC_OK;
                is_end = 1;
                break;
            
            case SC_OK:
                kol_sleep(5);
                break;

            case SC_CLS:
                con_cls();
                *buffer = SC_OK;
                break;
                
            case SC_PUTC:
                printf("%c", *(buffer+1));
                *buffer = SC_OK;
                break;

            case SC_PUTS:
                printf("%s", buffer+1 );
                *buffer = SC_OK;
                break;
                    
            case SC_GETC:
                *(buffer+1) = (char) getch() ;
                *buffer = SC_OK;
                break;	

            case SC_GETS:
                gets(buffer+1, size-2);
                *buffer = SC_OK;
                break;	
        
            case SC_PID:
                buf1k=malloc(1024);
                kol_process_info(-1, buf1k);
                memcpy(buffer+1, buf1k+30, sizeof(unsigned));
                *buffer = SC_OK;
                free(buf1k);
                break;
                
            case SC_PING:
                *buffer = SC_OK;
                break;
                
            default:
                printf (CON_APP_ERROR);
                return 0;
        };
        if (is_end) {
            printf("\n\r");
            return 1;
        }
    } // for end
    return 9;
}