`ls`: unbreak things heavily.

src/ls.c

@@ -55,7 +55,7 @@ Available arguments:
 }*/
 
 static int cmp(const void *a, const void *b) {
-  return strcmp(*(char **)a, *(char **)b);
+  return strcmp(*(char * const *)a, *(char * const *)b);
 }
 
 static int listDirs(char *thatpath, bool specpath, bool colour, bool showdot,
@@ -80,23 +80,29 @@ static int listDirs(char *thatpath, bool specpath, bool colour, bool showdot,
     printf("couldn't open '%s'. perhaps the path doesn't exist?\n", wd);
     return 1;
   }
-  int relen = sizeof(char);
+  int n=0;
-  char **words = malloc(relen);
+  while ((dp = readdir(dirp)) != NULL) {
+    if (!startsWithChar(dp->d_name, '.') || showdot == true) {
+      n++;
+    }
+  }
+  printf("%i\n",n);
+  rewinddir(dirp);
+  char *words[n];
   int count = 0;
+  int length = 0;
   while ((dp = readdir(dirp)) != NULL) {
     char *dirname = dp->d_name;
     if (!startsWithChar(dirname, '.') || showdot == true) {
-      relen = relen + strlen(dirname) +
+      words[count] = (char*)malloc(strlen(dirname)+1);
-              3; // 3 is so fucking arbitrary, but it works
+	  strncpy(words[count],dirname,strlen(dirname));
-      words = realloc(words, relen);
+	  count++;
-      words[count] = malloc(strlen(dirname) + 3);
+	  length+=strlen(dirname)+1;
-      words[count] = dirname;
-      count++;
     }
   }
   free(dirp);
   free(dp);
-  qsort(words, count - 1, sizeof(words), cmp);
+  qsort(words, n, sizeof(char*), cmp);
   char oldwd[PATH_MAX];
   strcpy(oldwd, wd);
   int currLen = 0;
@@ -132,7 +138,6 @@ static int listDirs(char *thatpath, bool specpath, bool colour, bool showdot,
       }
     }
   }
-  free(words);
   printf("\n");
   return 0;
 }