该程序测试相应终端的 ctrl - c 中断和终端的控制等
/**
* testsignal.c
*/
#include<stdio.h>
#include<signal.h>
#include<termios.h>
#include<fcntl.h>
void ctrl_c_hander();
void set_cr_mode();
void reset_mode(int flag);
int main(int ac,char *av[])
{
int counts=0,i=0;
reset_mode(0);
set_cr_mode();
signal(SIGINT,ctrl_c_hander);
while(1)
{
counts++;
printf("loop");
for(i=counts;i>0;i--)
printf("!");
printf("\n");
if(ac==2)
{
//if(atoi(av[1][0])==counts)
// exit(1);
}
sleep(1);
}
reset_mode(1);
}
void ctrl_c_hander()
{
puts("do you want exit.(y/n)\n");
if(tolower(getchar())=='y')
{
reset_mode(1);
exit(1);
}
return;
}
void set_cr_mode()
{
struct termios setting;
tcgetattr(0,&setting);
setting.c_lflag &= ~ICANON;
setting.c_lflag &= ~ECHO;
setting.c_cc[VMIN]=1;
tcsetattr(0,TCSANOW,&setting);
}
void reset_mode(int flag)
{
static struct termios info;
//static int termflag;
static int does;
if(flag==0)
{
tcgetattr(0,&info);
// termflag=fcntl(0,F_GETFL);
does=1;
}
else if(does==1)
{
// fcntl(0,F_SETFL,termflag);
tcsetattr(0,TCSANOW,&info);
}
}
来源:https://www.cnblogs.com/ringwang/archive/2009/04/05/1429871.html