assgn6/filewatch.c

   1 #include <unistd.h>
   2 #include <stdio.h>
   3 #include <dirent.h>
   4 #include <errno.h>
   5
   6 int main(int argc, char *argv[]) {
   7
   8     char *lex_path;
   9     DIR  *path;
  10     struct dirent *dent;
  11
  12     extern int errno;
  13
  14     if(argc == 1)
  15         lex_path = "./";
  16
  17     else if(argc == 2)
  18         lex_path = argv[1];
  19
  20     else {
  21
  22         printf("inappropriate number of args.\n");
  23         return 1;
  24     }
  25
  26     if(!(path = opendir(path))) {
  27
  28         if(errno == EACCES)
  29             printf("improper permissions to read dir.\n");
  30
  31         else if(errno == ENOENT)
  32             printf("given directory does not exist.\n");
  33
  34         else if(errno == ENFILE)
  35             printf("we're out of fd's.\n");
  36
  37         else if(errno == ENOTDIR)
  38             printf("argument is not a directory.\n");
  39
  40         else
  41             printf("an unspecified error occurred.\n");
  42
  43         return errno;
  44     }
  45
  46     if((dent = readdir(path)) != NULL) {
  47
  48         if(
  49     }
  50
  51     return 0;
  52 }