make int values always 4-aligned in fs image

1 files changed, 8 insertions, 0 deletions

diff --git a/makefs.c b/makefs.c
index 7d5b148..24d8f6c 100644
--- a/makefs.c
+++ b/makefs.c
@@ -38,6 +38,10 @@ int main(int argc, char **argv)
       if (printf("%s", argv[i]) != name_size)
 	errx(-1, "error writing to stdout");
 
+      for (int j = 0; (j + (name_size & 0b11)) & 0b11; j++)
+	if (putchar('\0'))
+	  errx(-1, "error writing to stdout");	  
+      
       if (fwrite(&file_size, 4, 1, stdout) != 1)
 	errx(-1, "error writing to stdout");
 
@@ -60,6 +64,10 @@ int main(int argc, char **argv)
 	  if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus))
 	    exit(-1);
 	}
+
+      for (int j = 0; (j + (file_size & 0b11)) & 0b11; j++)
+	if (putchar('\0'))
+	  errx(-1, "error writing to stdout");	  
     }
   
   return 0;