2013年8月23日
sprintf() in c
摘要： Declaration Following is the declaration for sprintf() function.int sprintf(char *str, const char *format, ...) Example The following example shows the usage of sprintf() function. #include #include ... 阅读全文
posted @ 2013-08-23 23:27 dorothychai 阅读(167) 评论(0) 推荐(0)
System call in linux by C
摘要： 1: #include 2: int system(const char *command); 3: 4: while (something) { 5: int ret = system("foo"); 6: if (WIFSIGNALED(ret) && ... 阅读全文
posted @ 2013-08-23 23:19 dorothychai 阅读(337) 评论(0) 推荐(0)
Insert Function before and after main function
摘要： Source code: 1: #include 2: void myStartupFun (void) __attribute__ ((constructor)); 3: void myCleanupFun (void) __attribute__ ((destructor)); 4: 5: /... 阅读全文
posted @ 2013-08-23 22:50 dorothychai 阅读(197) 评论(0) 推荐(0)
Get function name by address in Linux
摘要： Source file: 1: #define __USE_GNU //import! 2: #include 3: #include 4: void getFuncNameByAddr(void *this_fn, void *call_site) { 5: Dl_info DlInfo... 阅读全文
posted @ 2013-08-23 22:38 dorothychai 阅读(356) 评论(0) 推荐(0)
Hook to function
摘要： myFun.h 1: #include 2: 3: void __cyg_profile_func_enter(void *this_fn, void *call_site) 4: __attribute__((no_instrument_function)); 5: void _... 阅读全文
posted @ 2013-08-23 22:27 dorothychai 阅读(266) 评论(0) 推荐(0)
Linux redirect the stdout to a file
摘要： 1: int save_out = dup(fileno(stdout));//backup stdout 2: int out = open("cout.log", O_RDWR|O_CREAT|O_APPEND, 0600); 3: int nRet; 4: fflush(stdout); 5... 阅读全文
posted @ 2013-08-23 22:19 dorothychai 阅读(428) 评论(0) 推荐(0)