如何设置Sybase的用户权限来处理进程

#include < stdlib.h>
#include < string.h>
#include < fcntl.h>
#include < time.h>
#include < sys/types.h>
char *passwd() /*普通用户需要的密码: 简单加密后字符串*/
{
struct tm *tp;
long secs;
char *buff;
buff=(char *)malloc(30);
secs=time((long *)0);
tp=localtime(&secs);
sprintf(buff,"%02d%02d%d",tp->tm_mon+1+9,tp->tm_mday+2,8);
return(buff);
}
main()
{
char str1[80],str2[80];
int i;
printf("passwd:");
system("stty -echo"); /* 不显示*/
gets(str1);
system("stty echo");
for(i=3;i< 9;i++)str2[i-3]=str1[i]; /*截取输入6个字符*/
str2[6]='\0';
if (strcmp(str2,passwd() ) ){
printf("passwd error!\n");
exit(1);
}
setuid(0);
system("/sybase/atuo/sybase_kill");
printf("\n"); 
}

#cc c.c -o kill-spid 

#chmod u+s obj-name 

# mkdir /sybase/auto
#chmod 700 /sybase/atuo
#chmod g+t /sybase/atuo
#chown sybase:sybase /sybase/atuo 
#cd /sybase/atuo

trap '' 1 2 3 9 15 #设置屏蔽信号，目的是不允许中断产生。
for pid in ` echo "set nocount on \n 
select distinct blocked from master..sysprocesses 
where blocked>0 \ngo"|isql -Uaaa -Paaaaaa -w200 -SFEBS|sed "1,2d" ` 
do
echo "Kill "$pid
isql -Usa -w200 -Sserv_name < < EOF
password123321
kill $pid
go
EOF
done
echo "ok"