#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
ino_t get_inode(char *);
void print_path_to(ino_t);
void inum_to_name(ino_t, char*, int);
int count = 0;
char pathname[16][64];
int main()
{
print_path_to( get_inode(".") );
putchar('\n');
return 0;
}
ino_t get_inode (char* fname)
{
struct stat info;
if ( stat(fname, &info) == -1)
{
fprintf(stderr, "cannot stat ");
perror(fname);
exit(1);
}
return info.st_ino;
}
void inum_to_name (ino_t inode_to_find, char *namebuf, int buflen)
{
DIR *dir_ptr;
struct dirent *direntp;
dir_ptr = opendir(".");
if (dir_ptr == NULL)
{
perror(".");
exit(1);
}
while ( (direntp = readdir(dir_ptr) ) != NULL)
if (direntp->d_ino == inode_to_find)
{
strcpy(pathname[count], direntp->d_name);
closedir(dir_ptr);
count ++;
return;
}
fprintf(stderr,"errrrrrrr inum %d\n", inode_to_find);
exit(1);
}
void print_path_to(ino_t this_inode)
{
char its_name[BUFSIZ];
int check = 1 , i = 0;
while (check)
{
if( get_inode("..") != this_inode )
{
chdir("..");
inum_to_name(this_inode, its_name, BUFSIZ);
this_inode = get_inode(".");
}
else
check = 0;
}
for (i = count-1 ; i >= 0; i--)
{
printf("/%s", pathname[i]);
}
}