Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

LinuxÖÐerrnoʹÓÃ

µ±linuxÖеÄC apiº¯Êý·¢ÉúÒ쳣ʱ,Ò»°ã»á½«errno±äÁ¿(Ðèinclude
errno.h)¸³Ò»¸öÕûÊýÖµ,²»Í¬µÄÖµ±íʾ²»Í¬µÄº¬Òå,¿ÉÒÔͨ¹ý²é¿´¸ÃÖµÍÆ²â³ö´íµÄÔ­Òò£¬ÔÚʵ¼Ê±à³ÌÖÐÓÃÕâÒ»Õнâ¾öÁ˲»ÉÙÔ­±¾¿´À´ÄªÃûÆäÃîµÄÎÊÌâ¡£µ«ÊÇ
errnoÊÇÒ»¸öÊý×Ö£¬´ú±íµÄ¾ßÌ庬Ò廹Ҫµ½errno.hÖÐÈ¥ÔĶÁºê¶¨Ò壬¶øÃ¿´Î²éÔÄÊÇÒ»¼þºÜ·±ËöµÄÊÂÇé¡£ÓÐÏÂÃæ¼¸ÖÖ·½·¨¿ÉÒÔ·½±ãµÄµÃµ½´íÎóÐÅÏ¢
(1)void perror(const char *s)
º¯Êý˵Ã÷
perror ( )ÓÃÀ´½«ÉÏÒ»¸öº¯Êý·¢Éú´íÎóµÄÔ­ÒòÊä³öµ½±ê×¼´íÎó(stderr),²ÎÊýs ËùÖ¸µÄ×Ö·û´®»áÏÈ´òÓ¡³ö,ºóÃæÔÙ¼ÓÉÏ´íÎóÔ­Òò ×Ö·û´®¡£´Ë´íÎóÔ­ÒòÒÀÕÕÈ«¾Ö±äÁ¿ errno µÄÖµÀ´¾ö¶¨ÒªÊä³öµÄ×Ö·û´®¡£
(2) char *strerror(int errno)
½«´íÎó´úÂëת»»Îª×Ö·û´®´íÎóÐÅÏ¢,¿ÉÒÔ½«¸Ã×Ö·û´®ºÍÆäËüµÄÐÅÏ¢×éºÏÊä³öµ½Óû§½çÃæÀýÈç
fprintf(stderr,"error in CreateProcess %s, Process ID %d ",strerror(errno),processID)
×¢£º¼ÙÉèprocessIDÊÇÒ»¸öÒѾ­»ñÈ¡Á˵ÄÕûÐÎID
(3)printf("%m", errno);
ÁíÍâ²»ÊÇËùÓеĵط½·¢Éú´íÎóµÄʱºò¶¼¿ÉÒÔͨ¹ýerror»ñÈ¡´íÎó´úÂ룬ÀýÈçÏÂÃæµÄ´úÂë¶Î
/*×¢£ºÏÂÃæµÄÍ·ÎļþʹÓÃ""¶øÃ»ÓÐÖ±½ÓʹÓüâÀ¨ºÅÊÇÒòΪ²©¿Í´ó°ÍÖмâÀ¨ºÅµ±×÷html·ûºÅ£¬ËùÒÔÆäÄÚ²¿µÄÍ·ÎļþÃû×ֻᱻֱ½ÓºöÂÔ*/
#include"stdio.h"
#include "stdlib.h"
#include "errno.h"
#include "netdb.h"
#include "sys/types.h"
#include "netinet/in.h"
int main (int argc, char *argv[])
{
struct hostent *h;
if (argc != 2)
{
fprintf (stderr ,"usage: getip address\n");
exit(1);
}
/* È¡µÃÖ÷»úÐÅÏ¢ */
if((h=gethostbyname(argv[1])) == NULL)
{
/* Èç¹ûgethostbyname ʧ°Ü£¬Ôò¸ø³ö´íÎóÐÅÏ¢ */
herror(“gethostbyname”);
exit(1);
}
/* ÁÐÓ¡³ÌÐòÈ¡µÃµÄÐÅÏ¢ */
printf(“Host name : %s\n”, h->h_name);
printf(“IP Address : %s\n”, inet_ntoa (*((struct in_addr *)h->h_addr))£©;
return 0;
}
/*************************************/
ͨ¹ýÉÏÃæµÄ´úÂë¿ÉÒÔ¿´µ½£ºÊ¹ÓÃgethostbyname()º¯Êý£¬Äã²»ÄÜʹÓÃperror()À´Êä³ö´íÎóÐÅÏ¢£¨ÒòΪ´íÎó´úÂë´æ´¢ÔÚ h_errno Öжø²»ÊÇerrno ÖС£ËùÒÔ£¬ÄãÐèÒªµ÷ÓÃherror()º¯Êý¡£
Äã
¼òµ¥µÄ´«¸øgethostbyname() Ò»¸ö»úÆ÷Ãû£¨&ldq


Ïà¹ØÎĵµ£º

LinuxÄÚºËÅäÖÃÎĵµ(make menuconfig)

Ò»¡¢ÒýÑÔ£º
    ±¾ÎĵµµÄÄÚÈݴ󲿷ÝÄÚÈݶ¼ÊÇ´ÓÍøÉÏÊÕ¼¯¶øÀ´£¬È»ºóÅäºÏһЩеĽØÍ¼£¨Äں˰汾£ºV2.4.19£©¡£ÔÚÿһÅäÖÃÏîºó»áÓÐÒ»¸öÑ¡ÔñÖ¸ÄϵIJ¿·Ý£¬ÓÃÀ´Ö¸µ¼´ó¼ÒÔõôÑù¸ù¾Ý×Ô¼ºµÄÇé¿öÀ´×öÏàÓ¦µÄÑ¡Ôñ£»»¹ÓÐÔÚÿһ¸ö´óÏîºÍÎĵµµÄ×îºó»áÓÐÒ»¸ö¾­Ñé̸£¬ËüÊÇһЩ¸ßÊÖÃÇÔÚÓ¦¶ÔÎÊÌâºÍ´¦ÀíÌØÓÐÓ²¼þʱµÄһЩ¾­Ñ飨Õâ¸ö»¹µ ......

linux oracleËõС»Ø¹ö±í¿Õ¼ä´óСundotbs01.dbf


http://hi.baidu.com/lu_xinzhong/blog/item/4ff92b1725dec505c83d6d09.html
»Ø¹ö±í¿Õ¼ä´óС
-- ´´½¨Ò»¸öеÄС¿Õ¼äµÄUNDO TABLESPACE
Create UNDO TABLESPACE UNDOTBS2 DATAFILE '/u01/app/oracle/oradata/orcl/UNDOTBS02.DBF' SIZE 100M REUSE AUTOEXTEND ON;
-- ÉèÖÃеıí¿Õ¼äΪϵͳUNDO_TABLESPACE
Alter SYSTE ......

LinuxÍøÖ·¾«Ñ¡

¹úÍâ
¡¡¡¡http://lwn.net/
¡¡¡¡http://www.tldp.org/
¡¡¡¡https://rhn.redhat.com/
¡¡¡¡http://www.justlinux.com/
¡¡¡¡http://www.linuxtoday.com/
¡¡¡¡http://www.linuxquestions.org/
¡¡¡¡http://www.fokus.gmd.de/linux/
¡¡¡¡http://www.linux-tutorial.info/
¡¡¡¡http://www.freebsdforums.org/forums/
¡¡¡¡ ......

Linux ÃüÁîÐÐ

LinuxÌṩÁË´óÁ¿µÄÃüÁÀûÓÃËü¿ÉÒÔÓÐЧµØÍê³É´óÁ¿µÄ¹¤×÷£¬Èç´ÅÅ̲Ù×÷¡¢Îļþ´æÈ¡¡¢Ä¿Â¼²Ù×÷¡¢½ø³Ì¹ÜÀí¡¢ÎļþȨÏÞÉ趨µÈ¡£ËùÒÔ£¬ÔÚLinuxϵͳÉϹ¤×÷Àë²»¿ªÊ¹ÓÃϵͳÌṩµÄÃüÁî¡£ÒªÏëÕæÕýÀí½âLinuxϵͳ£¬¾Í±ØÐë´ÓLinuxÃüÁîѧÆð£¬Í¨¹ý»ù´¡µÄÃüÁîѧϰ¿ÉÒÔ½øÒ»²½Àí½âLinuxϵͳ¡£
²»Í¬Linux·¢ÐаæµÄÃüÁîÊýÁ¿²»Ò»Ñù£¬µ«Linux·¢ÐÐ°æ± ......

LinuxϵͳÉϼÜÉèVSFTP·þÎñÆ÷ʵÀý½âÎö

     
ʵÑé»·¾³£ºAS4×îС»¯°²×°
ʵÑéÄ¿±ê£º¼ÜÉèVSFTP·þÎñÆ÷
Õâ´ÎÎÒÃÇÀ´Ñ§Ï°LinuxϵͳÖÐµÄ vsftp·þÎñÆ÷µÄÅäÖá£
ÏÂÃæÎÒÃÇ¿ªÊ¼ÁË£¡Ê×ÏÈÎÒÃǰ²×°vsftp·þÎñÆ÷¶ËµÄÈí¼þ¡£
vsftpd·þÎñÆ÷µÄ°²×°ÎļþλÓÚµÚ1ÕŰ²×°¹âÅÌÖС£
ʹÓÃrpmÃüÃû¿É˳Àû°²×°¸ÃÈí¼þ°ü¡£
# rpm -ivh vsftpd-2.0.1-5.i386.r ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ