linux ÏÂc ³ÌÐò ¶Î´íÎó ·ÖÎö
fopen("/var/spool/cron/tmp","w+");
/////////////////////////////////////////
££i nclude <sys/types.h>
££i nclude <sys/stat.h>
££i nclude <fcntl.h>
££i nclude <unistd.h>
££i nclude <stdio.h>
££i nclude <string.h>
££i nclude <stdlib.h>
int main(){
int ret=-1;
printf("*************************************** delPolicy ***************************************************\n");
FILE *f;
f=fopen("var/spool/cron/tmp","w");
if(f==NULL)
{
printf("open tmp failed!\n");
fclose(f);
return -1;
}
printf("open two files successfully!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
fclose(f);
ret=0;
printf("*************************************** delPolicy ***************************************************\n");
return ret;
}
³öÏֶδíÎó:
ÔÒò:1:"/var/spool/cron/tmp"´íд³É"var/spool/cron/tmp"
2:ÎļþÃû²»ÄÜΪtmp¹Ø¼ü×Ö,¿ÉΪmytmp
²úÉú¶Î´íÎó¾ÍÊÇ·ÃÎÊÁË´íÎóµÄÄÚ´æ¶Î£¬Ò»°ãÊÇÄãûÓÐȨÏÞ£¬»òÕ߸ù±¾¾Í²»´æÔÚ¶ÔÓ¦µÄÎïÀíÄÚ´æ,ÓÈÆä³£¼ûµÄÊÇ·ÃÎÊ0µØÖ·.
Ò»°ãÀ´Ëµ,¶Î´íÎó¾ÍÊÇÖ¸·ÃÎʵÄÄڴ泬³öÁËϵͳËù¸øÕâ¸ö³ÌÐòµÄÄÚ´æ¿Õ¼ä£¬Í¨³£Õâ¸öÖµÊÇÓÉgdtrÀ´±£´æµÄ£¬ËüÊÇÒ»¸ö48λµÄ¼Ä´æÆ÷£¬
ÆäÖеÄ32λÊDZ£´æÓÉËüÖ¸ÏòµÄgdt±í£¬ºó13λ±£´æÏàÓ¦ÓÚgdtµÄϱ꣬×îºó3λ°üÀ¨Á˳ÌÐòÊÇ·ñÔÚÄÚ´æÖÐÒÔ¼°³ÌÐòµÄÔÚcpuÖеÄÔËÐ춱ð,
Ö¸ÏòµÄgdtÊÇÓÉÒÔ64λΪһ¸öµ¥Î»µÄ±í£¬ÔÚÕâÕűíÖоͱ£´æ×ųÌÐòÔËÐеĴúÂë¶ÎÒÔ¼°Êý¾Ý¶ÎµÄÆðʼµØÖ·,ÒÔ¼°Óë´ËÏàÓ¦µÄ¶ÎÏÞºÍÒ³Ãæ½»»»,
»¹ÓгÌÐòÔËÐ춱ð»¹ÓÐÄÚ´æÁ£¶ÈµÈµÈµÄÐÅÏ¢¡£Ò»µ©Ò»¸ö³ÌÐò·¢ÉúÁËÔ½½ç·ÃÎÊ£¬cpu¾Í»á²úÉúÏàÓ¦µÄÒì³£±£»¤£¬ÓÚÊÇsegmentation fault¾Í³öÏÖÁË.
ÔÚ±à³ÌÖÐÒÔϼ¸Àà×ö·¨ÈÝÒ×µ¼Ö¶δíÎó,»ù±¾ÊÇÊÇ´íÎóµØʹÓÃÖ¸ÕëÒýÆðµÄ
1)·ÃÎÊϵͳÊý¾ÝÇø£¬ÓÈÆäÊÇÍù ϵͳ±£»¤µÄÄÚ´æµØַдÊý¾Ý×î³£¼û¾ÍÊǸøÒ»¸öÖ¸ÕëÒÔ0µØÖ·
2)ÄÚ´æÔ½½ç(Êý×éÔ½½ç£¬±äÁ¿ÀàÐͲ»Ò»ÖµÈ) ·ÃÎʵ½²»ÊôÓÚÄãµÄÄÚ´æÇøÓò
½â¾ö·½·¨
ÎÒÃÇÔÚÓÃC/C++ÓïÑÔд³ÌÐòµÄʱºî£¬ÄÚ´æ¹ÜÀíµÄ¾ø´ó²¿·Ö¹¤×÷¶¼ÊÇÐèÒªÎÒÃÇÀ´×öµÄ¡£
ÈçºÎ¿ìËÙ¶¨Î»ÕâЩ"¶Î´íÎó"µÄÓï¾ä
1 dummy_ (void)
2&n
Ïà¹ØÎĵµ£º
Æô¶¯ÅäÖãº
/etc/init.d/rcS
# mkfs.jffs2 -r yyfs/ -o yy.jffs2 -p -l -n -e 0x8000 -m size
ÄÚºËÆô¶¯ÏÔʾ£º
unable to open an initial console.
½â¾ö£º
´´½¨rootfs¹ý³ÌÖУ¬ÔÚ/devĿ¼ÏÂÊÖ¶¯´´½¨ÈçϽڵ㣺
mknod -m 660 null c 1 3
mknod -m 660 console c 5 1
Taking the GNU/Linux hos ......
ת×Ô£º http://ipie.blogbus.com/logs/36730036.html
Linux¸ß¼¶È¨ÏÞ¹ÜÀí£ºACLÓ÷¨¼ò½é
2009-03-18 23:11:22 by deepblue
Ç°¶Îʱ¼ä£¬ÔÚLinuxÉÏÉèÖÃÒ»¸öĿ¼µÄ·ÃÎÊȨÏÞʱ£¬·¢ÏÖͨ¹ý¼òµ¥µÄchmod²Ù×÷²»ÄÜÂú×ã×Ô¼ºµÄÐèÇó£¬
ÎÊÌ⣺Èç¹ûÓÃrootÕʺŴ´½¨ÁËÒ»¸öĿ¼DIR£¬ÓÐA,B,C,DËÄ×éÓû§£¬ÎÒÏë¸øA×éÓû§¶ÁдִÐеÄȨÏÞ£ ......
/boot:ÕâÀï´æ·ÅµÄÊÇÆô¶¯LINUXʱʹÓõÄһЩºËÐÄÎļþ¡£
/dev:devÊÇdevice(É豸)µÄËõд¡£Õâ¸öĿ¼ÏÂÊÇËùÓÐLINUXµÄÍⲿÉ豸£¬Æ书ÄÜÀàËÆDOSϵÄ.sysºÍWinϵÄ.vxd¡£ÔÚLINUXÖÐÉ豸ºÍÎļþÊÇÓÃͬÖÖ·½·¨·ÃÎʵġ£ÀýÈç:/dev/hda´ú±íµÚÒ»¸öÎïÀíIDEÓ²ÅÌ¡£
/etc:Õâ¸öĿ¼ÓÃÀ´´æ·ÅËùÓеÄϵͳ¹ÜÀíËùÐèÒªµÄÅäÖÃÎļþºÍ×ÓĿ¼¡£
/bin:bin ......
¼ò½é
±¾ÎÄÊÇΪÁËÂú×㿪·¢ÈËÔ±µÄÐèÒª¶øдµÄ¡£ÎÒÃÇ×ܽáÁËÒ»Ì×Ö¸ÄÏ£¬ÎÞÂÛ×÷Ϊ¿ª·¢ÈËÔ±»¹ÊǹËÎÊ£¬ÕâЩָÄ϶àÄêÀ´Ò»Ö±¶¼ºÜºÃµØÖ¸µ¼×ÅÎÒÃÇ£¬ÎÒÃÇ°ÑËüÃÇ×÷Ϊ½¨ÒéÌṩ¸øÄú£¬Ï£Íû¶ÔÄúµÄ¹¤×÷ÓÐËù°ïÖú¡£ÄúÒ²Ðí²»ÔÞͬÆäÖеÄijЩָÄÏ£¬µ«ÎÒÃÇÏ£ÍûÄú»áϲ»¶ÆäÖеÄһЩ²¢ÔÚÄúµÄ±à³Ì»òÒÆÖ²ÏîÄ¿ÖÐʹÓÃËüÃÇ¡£
·ç¸ñÓëÖ¸ÄÏ
ʹÓÃÒ»ÖÖʹ´úÂë¾ß ......
9Ô¶¼¿ì½áÊøÁË£¬Ö®Ç°Ò»Ö±Ã¦µ½Ð´×Ô¼ºµÄ¶«Î÷¼ÓÉÏÉÏ°à¡£»ù±¾Ã»ÓÐʱ¼äÑо¿Ï»ã±àºÍC C++·½ÃæµÄ¸ÐÐËȤµÄ¶«Î÷¡£ÔÙÔõô˵Â9Ô»¹ÊǵÃдһƪÈö£¬ÒÔºóÿÔÂÖÁÉÙһƪ°É¡£¸ø×Ô¼º¶¨ÁË£¬Ï£Íû´ó¼Ò¼à¶½¡£ºÙºÙ£¡
ÕâƪÎÄÕ¾ÍÀ´Ì¸Ì¸Æ½³£ºÜ³£¼ûµÄHOOK¼¼Êõ£¬ÕâÀïÄØ¡£Ð´µÃ±È½Ï¼òµ¥£¬·½·¨ºÜ¶à¡£Ö»½²ÔÀí£¡Ï£Íû´óÄñÃDZðÍÂÎÒ¿ÚË®¹þ - -¡£ºÃ£¡ÇÐÈëÕ ......