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发信人: bstone (Live my life!), 信区: Linux
标 题: Faint 0.1 文件 cover.c
发信站: BBS 荔园晨风站 (Wed Feb 23 14:04:08 2000), 站内信件
发信人: ylsdd (1245), 信区: Linux
标 题: Faint 0.1 文件 cover.c
发信站: BBS 水木清华站 (Wed Feb 23 07:09:46 2000)
#include <sys/stat.h>
#include <unistd.h>
#include <sys/param.h>
#include <signal.h>
#include <fcntl.h>
#include <errno.h>
#include <termios.h>
#include <sys/time.h>
#include <sys/types.h>
#define TIMEIDLE 200
#define TIMEDELAY 6
int setup_daemon(void)
{ int i;
for(i=0;i<NOFILE;i++) close(i);
switch(fork())
{ case -1: return -1;
default: exit(0);
case 0:
case 0:
setsid();
switch(fork())
{ case-1:
default: exit(0);
case 0:
umask(0);
return 0;
}
}
}
main(int argc, char **argv)
{ int fdin[2], fdout[2];
int fdr0, fdw0, fdr1, fdw1, fdlock, fdlog, i, try;
time_t timenow;
struct tm *tmptr;
fd_set rdfds, exfds;
struct timeval timeout;
char buf[1024], ch;
char fnlock[40], fnin[40], fnout[40], fnlog[40];
if(argc<2) return;
if(argc<2) return;
if(sscanf(argv[1],"%d",&i)!=1) return;
if(i>99||i<0) return;
sprintf(fnlock,"ctrl/%02dcover.lock",i);
sprintf(fnin,"ctrl/%02din.fifo",i);
sprintf(fnout,"ctrl/%02dout.fifo",i);
timenow=time(NULL);
tmptr=localtime(&timenow);
sprintf(fnlog,"log/%02d%04d%02d%02d%02d%02d%02d.log",
i, tmptr->tm_year+1900, tmptr->tm_mon, tmptr->tm_mday,
tmptr->tm_hour, tmptr->tm_min, tmptr->tm_sec);
setup_daemon();
if(pipe(fdin)==-1) exit(1);
if(pipe(fdout)==-1) exit(1);
fdlock=open(fnlock,O_RDONLY|O_CREAT,S_IRUSR|S_IWUSR);
if(fdlock<0) exit(1);
if(flock(fdlock,LOCK_EX|LOCK_NB)<0) exit(1);
switch(fork())
{ case -1: exit(1);
case 0: close(fdin[1]);
dup(fdout[1]);
close(fdout[0]);
close(fdout[1]);
close(fdout[1]);
close(fdlock);
execvp(argv[2], &argv[2]);
exit(1);
default:
close(fdin[0]);
fdw0=fdin[1];
close(fdout[1]);
fdr1=fdout[0];
}
signal(SIGPIPE, SIG_IGN);
fdw1=-1;
fdr0=open(fnin,O_RDWR|O_NDELAY);
if(fdr0<0) exit(1);
fdlog=open(fnlog,O_WRONLY|O_CREAT|O_EXCL,S_IRUSR|S_IWUSR);
if(fdlog<0) exit(1);
for(i=2, ch=' ';i<argc;i++)
{ write(fdlog, argv[i], strlen(argv[i]));
write(fdlog, &ch, 1);
}
ch='\n';
ch='\n';
write(fdlog,&ch,1);
timeout.tv_sec=TIMEIDLE;
timeout.tv_usec=0;
try=1;
ch=12;
while(1)
{
if(fdw1<0&&try==1)
{ fdw1=open(fnout,O_WRONLY|O_NDELAY);
try=0;
}
FD_ZERO(&rdfds);
FD_ZERO(&exfds);
FD_SET(fdr1,&rdfds);
FD_SET(fdr1,&exfds);
FD_SET(fdr0,&rdfds);
if(select(1+((fdr0>fdr1)?fdr0:fdr1),&rdfds,NULL,&exfds,&timeout)<=0)
{ timeout.tv_sec=TIMEIDLE;
timeout.tv_usec=0;
write(fdw0,&ch,1);
write(fdw0,&ch,1);
continue;
}
if(FD_ISSET(fdr1,&rdfds))
{ i=read(fdr1,buf,1024);
if(i>0) while(write(fdlog,buf,i)<0)
{ if(errno==EINTR) continue;
else exit(1);
}
if(fdw1>=0&&i>0)
{ while(write(fdw1,buf,i)<0)
{ if(errno==EINTR) continue;
close(fdw1);
fdw1=-1;
break;
}
}
}
if(FD_ISSET(fdr1,&exfds)) exit(1);
if(FD_ISSET(fdr0,&rdfds))
{ i=read(fdr0,buf,1024);
if(i>0)
{ while(write(fdw0,buf,i)<0)
}
{ if(errno!=EINTR) exit(1);
}
timeout.tv_sec=TIMEIDLE;
timeout.tv_usec=0;
try=1;
}
}
}
}
/*----------------End of File cover.c---------------------*/
--
要是不能说糊话, 还不如死了算了
※ 来源:·BBS 水木清华站 smth.org·[FROM: 162.105.21.92]
--
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