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34 lines
552 B
34 lines
552 B
#include <stdio.h>
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#include <stdlib.h>
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#include "fun.h"
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void eval(char *cmdline);
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void sigint_handler();
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pid_t getpid(void);
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pid_t main_proc_pid;
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int main()
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{
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char cmdline[MAXLINE];
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main_proc_pid = getpid();
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signal(SIGINT, sigint_handler);
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while(1)
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{
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printf("COMMAND->");
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fflush(stdin);
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fgets(cmdline, MAXLINE, stdin);
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eval(cmdline);
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history(cmdline);
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}
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return 0;
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}
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void sigint_handler()
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{
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pid_t pid = getpid();
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if(pid != main_proc_pid)
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{
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exit(0);
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}
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}
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