source: trunk/minix/commands/simple/dirname.c@ 9

/* dirname - extract the directory name from a path     Author: Peter Holzer */

/* Dirname -- extract directory part from a path name
 *
 * Peter Holzer (hp@vmars.tuwien.ac.at)
 *
 * $Log: dirname.c,v $
 * Revision 1.1.1.1  2005/04/21 14:55:21  beng
 * Initial import of pre-3.0.1
 *
 * Revision 1.1.1.1  2005/04/20 13:33:30  beng
 * Initial import of minix 2.0.4
 *
 * Revision 1.1  1994/02/12  16:15:02  hjp
 * Initial revision
 *
 */

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

int main(int argc, char **argv)
{
  char *p;
  char *path;

  if (argc != 2) {
        fprintf(stderr, "Usage: %s path\n", argv[0]);
        return(1);
  }
  path = argv[1];
  p = path + strlen(path);
  while (p > path && p[-1] == '/') p--; /* trailing slashes */
  while (p > path && p[-1] != '/') p--; /* last component */
  while (p > path && p[-1] == '/') p--; /* trailing slashes */
  if (p == path) {
        printf(path[0] == '/' ? "/\n" : ".\n");
  } else {
        printf("%.*s\n", (int) (p - path), path);
  }
  return(0);
}