dir.c

dir.c

//#include <ctype.h>
//#include <locale.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
//#include <errno.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
typedef DIR directory_type;
#define FILESEP '/'

static int
isdirectory(char *filename)
{
struct stat statbuf;
if (stat(filename, &statbuf) < 0)
  return 0;        /* In the expectation that opening as a file will fail */
return (statbuf.st_mode & S_IFMT) == S_IFDIR;
}

static directory_type *
opendirectory(char *filename)
{
return opendir(filename);
}

static char *
readdirectory(directory_type *dir)
{
for (;;)
  {
  struct dirent *dent = readdir(dir);
  if (dent == NULL) return NULL;
  if (strcmp(dent->d_name, ".") != 0 && strcmp(dent->d_name, "..") != 0)
    return dent->d_name;
  }
/* Control never reaches here */
}

static void
closedirectory(directory_type *dir)
{
closedir(dir);
}

int
main(int argc, char **argv)
{
   char buffer[1024];
    char *nextfile;
    char *pathname;
    pathname = argv[1];
    puts(argv[1]);
    if(isdirectory(pathname)) {
        puts("dir");
        directory_type *dir = opendirectory(pathname);
        if (dir == NULL) {
            puts("err");
        }
        while ((nextfile = readdirectory(dir)) != NULL)
              {
              int frc;
              puts(nextfile);
              sprintf(buffer, "%.512s%c%.128s", pathname, FILESEP, nextfile);
              puts(buffer);
              }
    } else {
        puts("file");
    }
    return 0;
}