name.c

基于UNIX6的文件系统模拟程序

#include <string.h>
#include <stdio.h>
#include "filesys.h"

unsigned int namei(name)
char *name;
{
	int i,notfound = 1;

	for(i=0;((i<dir.size)&&(notfound));i++)
		if((!strcmp(dir.direct[i].d_name,name))&&(dir.direct[i].d_ino != 0))
			return dir.direct[i].d_ino; /*i find */
	/* not find */
	return NULL;
};


unsigned short iname(name)
char *name;
{
	int i,notfound = 1;

	for(i=0;((i<DIRNUM)&&(notfound));i++)
		if(dir.direct[i].d_ino == 0)
		{
			notfound = 0;
			break;
		}
	if(notfound)
	{
		printf("\nThe current directory is full !!\n");
		return 0;
	}
	else
	{
		strcpy(dir.direct[i].d_name,name);
		return i;
	}
}