linux获取程序运行路径

方法一、

char path[PATH_MAX] = 0x0;
readlink( "/proc/self/exe", path, sizeof(path));

方法二、

/*******************************************************
developer: Lucifer
use fot: get program fullname
parameter: fullname buff
           proargv argv[0]
           fullnamelength buff length
date: 2009-01-09
*******************************************************/
void getfullname( char *fullname, char *proargv, int fullnamelength)
{
        if( proargv[0] == '/')
        {
                strcpy( fullname, proargv);
        }
        else if( proargv[0] == '.')
        {
                getcwd( fullname, fullnamelength);
                strcat( fullname, proargv + 1);
        }
        else
        {
                strcpy( fullname, "error");
        }
}

int main(int argc, char *argv[])
{
        char cfgfile[256] = {0x0};
        getfullname( cfgfile, argv[0], sizeof( cfgfile)-1);

        printf( "%s\n", cfgfile);
}