[TrouSerS-tech] big-endian patch

[Wyllys I. <Wyllys.Ingersoll@Sun.COM>]

The following patch enables trousers to work correctly on a big-endian system
(such as SPARC).  Currently, the system.data file is incorrectly interpreted
on big-endian platforms.

--- src/tcs/ps/ps_utils.c.old   Wed Aug  5 11:44:32 2009
+++ src/tcs/ps/ps_utils.c       Wed Aug  5 11:51:15 2009
@@ -14,6 +14,9 @@
  #include <unistd.h>
  #include <sys/types.h>
  #include <sys/stat.h>
+#ifdef SOLARIS
+#include <sys/byteorder.h>
+#endif
  #include <fcntl.h>
  #include <string.h>
  #include <limits.h>
@@ -160,6 +163,9 @@
                         return -1;
                 }

+#if defined (_BIG_ENDIAN)
+                num_keys = BSWAP_32(num_keys);
+#endif
                 if ((rc = write_data(fd, &num_keys, sizeof(UINT32)))) {
                         LogError("%s", __FUNCTION__);
                         return rc;
@@ -168,6 +174,10 @@
                 /* return the offset */
                 return (TSSPS_NUM_KEYS_OFFSET + sizeof(UINT32));
         }
+#if defined (_BIG_ENDIAN)
+        else
+                num_keys = BSWAP_32(num_keys);
+#endif

         /* if there is a hole in the file we can write to, find it */
         offset = find_write_offset(pub_data_size, blob_size, vendor_data_size);
@@ -187,7 +197,9 @@
                         LogError("lseek: %s", strerror(errno));
                         return -1;
                 }
-
+#if defined(_BIG_ENDIAN)
+                num_keys = BSWAP_32(num_keys);
+#endif
                 if ((rc = write_data(fd, &num_keys, sizeof(UINT32)))) {
                         LogError("%s", __FUNCTION__);
                         return rc;
@@ -274,6 +286,9 @@
         } else if ((unsigned)rc < sizeof(UINT32)) {
                 num_keys = 0;
         }
+#if defined(_BIG_ENDIAN)
+        num_keys = BSWAP_32(num_keys);
+#endif

         return num_keys;
  }
@@ -403,6 +418,9 @@
                         LogError("%s", __FUNCTION__);
                         goto err_exit;
                 }
+#if defined(_BIG_ENDIAN)
+                tmp->pub_data_size = BSWAP_16(tmp->pub_data_size);
+#endif

                 DBG_ASSERT(tmp->pub_data_size <= 2048 && tmp->pub_data_size > 0);

@@ -411,7 +429,9 @@
                         LogError("%s", __FUNCTION__);
                         goto err_exit;
                 }
-
+#if defined(_BIG_ENDIAN)
+                tmp->blob_size = BSWAP_16(tmp->blob_size);
+#endif
                 DBG_ASSERT(tmp->blob_size <= 4096 && tmp->blob_size > 0);

                 /* vendor data size */
@@ -419,6 +439,9 @@
                         LogError("%s", __FUNCTION__);
                         goto err_exit;
                 }
+#if defined(_BIG_ENDIAN)
+                tmp->vendor_data_size = BSWAP_32(tmp->vendor_data_size);
+#endif

                 /* cache flags */
                 if ((rc = read_data(fd, &tmp->flags, sizeof(UINT16)))) {
@@ -425,6 +448,9 @@
                         LogError("%s", __FUNCTION__);
                         goto err_exit;
                 }
+#if defined(_BIG_ENDIAN)
+                tmp->flags = BSWAP_16(tmp->flags);
+#endif

  #ifdef TSS_DEBUG
                 if (tmp->flags & CACHE_FLAG_VALID)