/* checkfile.c written by detour@metalshell.com
 *
 * simple function to check for a file
 *
 * http://www.metalshell.com/
 *
*/

#include <stdio.h>
#include <sys/stat.h>

int isFile(const char *fname);

int main(int argc, char *argv[]) {

  if (argc != 2) { 
    printf("Usage: %s filename\n", argv[0]); 
    exit(0);
  }

  if(isFile(argv[1])) {
    printf("%s is a file.\n", argv[1]);
  }

return 0;
}

int isFile(const char *fname) {
  struct stat sbuf;

  if (lstat(fname, &sbuf) == -1) {
    fprintf(stderr, "lstat() Failed.\n");
    return 0;
  }

  if(S_ISREG(sbuf.st_mode)) {
    return 1;
  }

return 0;
}