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                ## pututline ## 將utmp 記錄寫入文件 ### 相關函數 ### getutent,getutid,getutline ### 表頭文件 ### ``` #include<utmp.h> ``` ### 定義函數 ### ``` void pututline(struct utmp *ut); ``` ### 函數說明 ### pututline()用來將參數ut的utmp結構記錄到utmp文件中。此函數會先用getutid()來取得正確的寫入位置,如果沒有找到相符的記錄則會加入到utmp文件尾,utmp結構請參考getutent()。 ### 附加說明 ### 需要有寫入/var/run/utmp 的權限 ### 范例 ### ``` #include<utmp.h> main() { struct utmp ut; ut.ut_type =USER_PROCESS; ut.ut_pid=getpid(); strcpy(ut.ut_user,”kids”); strcpy(ut.ut_line,”pts/1”); strcpy(ut.ut_host,”www.gnu.org”); pututline(&ut); } ``` ### 執行 ### ``` /*執行范例后用指令who -l 觀察*/ root pts/0 dec9 19:20 kids pts/1 dec12 10:31(www.gnu.org) root pts/2 dec12 13:33 ```
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