#include <unistd.h>
#include <stdio.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>
#include <stdlib.h>
void printdir(char *dir, int depth)
{
DIR *dp;
struct dirent *entry;
struct stat statbuf;
if((dp=opendir(dir))==NULL) {
fprintf(stderr,"cannot open directory: %s\n", dir);
return ;
}
chdir(dir);
while((entry=readdir(dp))!=NULL) {
lstat(entry->d_name,&statbuf);
if(S_ISDIR(statbuf.st_mode)) {
if(strcmp(".",entry->d_name)==0 || strcmp("..",entry->d_name)==0)
continue;
printf("%*s%s/\n",depth,"",entry->d_name);
printdir(entry->d_name,depth+4);
}
else
printf("%*s%s\n",depth,"",entry->d_name);
}
chdir("..");
closedir(dp);
}
int main(int argc, char* argv[])
{
char *topdir=".";
if(argc>=2)
topdir=argv[1];
printf("Directory scan of %s:\n", topdir);
printdir(topdir,0);
printf("done.\n");
exit(0);
}
포멧 스트링에서 %*s = depth,"" 인데.. depth 만큼 공백출력이 *임-ㅁ-
