获取可执行文件的全路径和所属目录

主要代码：

int GetCurFilePath(char *lpOut)					// get full path of the executable file
{
	char chPath[BUFSIZ] = {0};
 	int nRetVal = readlink("/proc/self/exe", chPath, sizeof(chPath)); // get full path of the current-executable file
	if(nRetVal < 0)
	{
		strcpy(lpOut, ".");
		return -1;
	}
	else
	{
		strcpy(lpOut, chPath);
		return 0;
	}
}

int GetCurDir(char *lpOutDir)						// get directory-path of current executable-file
{
	char	chPath[BUFSIZ] = { 0 };
	if( GetCurFilePath(chPath) < 0 )
		return - 1;
	dirname(chPath);									// dirname will change value of "chPath"(contain result)
	strcpy(lpOutDir, chPath);						// copy result to out-param

	return 0;
}

上面的BUFSIZ是库函数中定义的宏，值为8192

可能需要的头文件有：

#include <unistd.h> ： readlink
#include <string.h> ：strcpy ...
#include <libgen.h> ：dirname