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<hr><p align="left"><small>发信人: ylsdd (不该存在者), 信区: Linux <br>
标 题: Faint 0.0 文件 loadbbs.c <br>
发信站: BBS 水木清华站 (Tue Dec 21 20:57:11 1999) <br>
<br>
<br>
******************************************* <br>
Faint 传播准则: <br>
1. 在转载中不漏掉本段准则任何一条 <br>
2. 允许修改, 但要将修改人作为本准则最后 <br>
一条加入本准则 <br>
3. ecnegrevid ytht.dhs.org 1999.12.21 <br>
******************************************* <br>
<br>
#include <unistd.h> <br>
#include <stdio.h> <br>
#include <signal.h> <br>
#include <fcntl.h> <br>
#include <termios.h> <br>
#include <sys/types.h> <br>
#define CTRL_l 12 <br>
struct termios tsave; <br>
void scan_mode() <br>
{ struct termios tbuf; <br>
if(!isatty(0)) exit(1); <br>
if(tcgetattr(0,&tbuf)==-1) exit(1); <br>
tsave=tbuf; <br>
tbuf.c_lflag&=~(ECHO|ICANON|ISIG); <br>
tbuf.c_cc[VMIN]=tbuf.c_cc[VTIME] =0; <br>
if(tcsetattr(0,TCSANOW,&tbuf)==-1) exit(1); <br>
} <br>
void restore_mode(int i) <br>
{ tcsetattr(0,TCSANOW,&tsave); <br>
if(i>=0) exit(1); <br>
} <br>
main() <br>
{ int i, mode=0; <br>
char buf[1024], inputch; <br>
int fdw, fdr, fdlock; <br>
fd_set rdfds; <br>
<br>
fdlock=open(".lockloadbbs",O_CREAT|O_RDONLY); <br>
if(fdlock<0) exit(1); <br>
if(flock(fdlock,LOCK_EX|LOCK_NB)<0) exit(1); <br>
fdr=open("out.FIFO",O_RDONLY|O_NDELAY); <br>
fdw=open("in.FIFO",O_WRONLY); <br>
scan_mode(); <br>
(void)signal(SIGPIPE, restore_mode); <br>
inputch=CTRL_l; <br>
write(fdw,&inputch,1); <br>
while(1) <br>
{ FD_ZERO(&rdfds); <br>
FD_SET(0,&rdfds); <br>
FD_SET(fdr,&rdfds); <br>
if(select(fdr+1,&rdfds,NULL,NULL,NULL)) <br>
{ <br>
if(FD_ISSET(fdr,&rdfds)) <br>
{ i=read(fdr,buf,1024); <br>
if(i>0) write(1,buf,i); <br>
} <br>
if(FD_ISSET(0,&rdfds)) <br>
{ i=read(0,&inputch,1); <br>
if(i==1&&mode==0&&inputch==29) <br>
{ <br>
printf("\n\033[1;4m<loadbbs: press 'c' to abort, " <br>
"press any key else to continue>:\033[0m"); <br>
fflush(stdout); <br>
mode=1; <br>
} <br>
else if(i==1&&mode==0) write(fdw,&inputch,1); <br>
else if(i==1&&mode==1) <br>
{ switch(inputch) <br>
{ case 'c': printf("\033[2J\033[1;1H"); <br>
restore_mode(0); <br>
default: <br>
mode=0; <br>
inputch=CTRL_l; <br>
write(fdw,&inputch,1); <br>
} <br>
} <br>
} <br>
} <br>
} <br>
} <br>
-- <br>
</small><hr>
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