screensaver для кассы : УКМ-4

/etc/rc3.d/@S99local

./usr/local/ss

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

int get_result(char *cmd)
{
        char ret='\0';
        FILE *f=popen(cmd,"r");
        if (f==NULL) return ret;
        ret=fgetc(f);
        fclose(f);
        return ret;
}

int main (int argc, char **argv)
{
        char c;
        char cmd[30];
        char sec[3];

        close(STDIN_FILENO);
        close(STDOUT_FILENO);
        close(STDERR_FILENO);

        strcpy(cmd,"setterm -blank ");
        if (argc==2)
                strcpy(sec,argv[1]);
        else
                strcpy(sec,"5");
        strcat(cmd,sec);
        strcat(cmd," > /dev/tty0");

        pid_t pid=fork();

        if (pid==0)
        {
                for (;;)
                {
                        c=get_result("/bin/ps -A | grep ukmclient");
                        if ((c!='\0')&&(c!=-1))
                        {
                                sleep(120);
                                system(cmd);
                                break;
                        }
                        sleep(1);
                }
                exit(0);
        }
	return 0;
}