New feature, create directory in the user home.

ykpamcfg.c

@@ -37,6 +37,8 @@
 #include <pwd.h>
 #include <string.h>
 #include <errno.h>
+#include <sys/stat.h>
+#include <sys/types.h>
 
 #include <ykpers.h>
 
@@ -136,12 +138,41 @@ do_add_hmac_chalresp(YK_KEY *yk, uint8_t slot, bool verbose, char *output_dir, i
   *exit_code = 1;
 
   p = getpwuid (getuid ());
-
+  
   if (! p) {
     fprintf (stderr, "Who am I???");
     goto out;
   }
 
+ /*
+  * Create default output directory for the user
+  */
+
+  if (!output_dir){
+      const char *pathname = p->pw_dir; 
+      char fullpath[256];
+      snprintf(fullpath, 256,"%s/.yubico",p->pw_dir);
+      struct stat st;
+
+      //check if directory exists     
+      if (stat(fullpath,&st)!=0 ){     
+	if(mkdir(fullpath, S_IRWXU)==-1){
+	  fprintf(stderr, "Failed creating directory '%s' :%s\n",
+		  fullpath, strerror(errno));
+	}
+	if(verbose){
+	  printf("Directory %s created successfully.\n", fullpath);
+	}
+      }
+      else{
+	if(!S_ISDIR(st.st_mode)){
+	  fprintf(stderr, "Destination %s already exist and is not a directory.\n",
+		  fullpath);
+	  goto out;
+	  }
+      }
+  }
+
   if (! get_user_challenge_file(yk, output_dir, p->pw_name, &fn)) {
     fprintf (stderr, "Failed getting chalresp state filename\n");
     goto out;
@@ -242,7 +273,7 @@ main(int argc, char **argv)
       goto err;
 
     if (! check_firmware_version(yk, verbose, false))
-      goto err;
+      goto err;    
 
     if (! do_add_hmac_chalresp (yk, slot, verbose, output_dir, &exit_code))
       goto err;