在socket編程時,會出現指定了ip,連接埠號碼,卻連不上,這是因為網路地址跟本地主機地址的字元順序不一樣導致的。在linux下提供了一些操作函數,如下: unsigned long int htonl(unsigned long int hostlong);用來將參數指定的32位hostlong 轉換成網路字元順序。 unsigned short int htons(unsigned short int hostshort);
首先引用 ULK上面的解釋 :The mm_users field stores the number of lightweight processes that share the mm_struct data structure (see the section "The clone( ), fork( ), and vfork( ) System Calls" in Chapter 3). The mm_count field is the main usage counter of
Well you should have a secondary user other than root on the system to login with. Hopefully that user is in the sudoers file and has root permissions or is a part of the wheel group?If the above criteria is met you can do the following from
Date:2009.5.7Content:UNIX環境下進階編程 Chapter1:UNIX System Overview 1、所用書籍:《UNIX環境下進階編程》(Advanced Programming in the UNIX Environment: Second Edition) 2、執行個體代碼:http://www.apuebook.com/src.tar.gz雖然提供了代碼,但是強力推薦自己在vim或者vi中敲入代碼。 3、預備知識(1)
Date:2009.5.8 FridayContent:UNIX Standardization and Implementations(Unix標準化及實現)一、部分簡稱ANIS:American National Standards Institute美國國家標準局ISO:International Organization for Standardization 國際標準組織IEC:International Electrotechnical