fork/exec ...의 사용문제 ...

#include <stdio.h>
#include <stdlib.h>			//standard lib for malloc 
#include <string.h>
#include <sys/types.h>
#include <dirent.h>
#include <unistd.h>			// fork / exec 
void main(int argc, char *argv[])	//Getting argument 
{
	char *infoName = (char*)malloc(strlen(argv[1])); 	//Dynamic memory allocation.r
	strncpy(infoName, argv[1], strlen(argv[1]) );		//copied a string to fileName
 
	DIR* dp = NULL; // directory pointer
	struct dirent* entry = NULL;
 
	if ( (dp = opendir(infoName)) == NULL ){
		printf(" ERROR !! we can not open the folder ! \n");
	}
 
	while ( (entry = readdir(dp)) != NULL ){		// IF the folder is Not empty ..
		printf("%s\n", entry->d_name);			// show example 
	}
	closedir(dp);
 
 
	free(infoName);	//Memory free
}