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[Xen-changelog] [xen-unstable] Revert 11728:30f13007be. Breaks Solaris guests.



# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxxx
# Node ID f7d65fb7299b95b8b6d3a44134a9f2af211393c6
# Parent  f8ddc9abf3ef7b8b8ab3a235f096a0ccb66efcb7
Revert 11728:30f13007be. Breaks Solaris guests.
Will need a new method for handling padded gzip files.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 tools/libxc/xc_linux_build.c |   20 ++++++++++++--------
 1 files changed, 12 insertions(+), 8 deletions(-)

diff -r f8ddc9abf3ef -r f7d65fb7299b tools/libxc/xc_linux_build.c
--- a/tools/libxc/xc_linux_build.c      Tue Oct 10 16:02:30 2006 +0100
+++ b/tools/libxc/xc_linux_build.c      Tue Oct 10 22:04:01 2006 +0100
@@ -38,7 +38,7 @@ struct initrd_info {
     enum { INITRD_none, INITRD_file, INITRD_mem } type;
     unsigned long len;
     union {
-        int fd;
+        gzFile file_handle;
         char *mem_addr;
     } u;
 };
@@ -152,7 +152,7 @@ int load_initrd(int xc_handle, domid_t d
         }
         else
         {
-            if ( read(initrd->u.fd, page, PAGE_SIZE) == -1 )
+            if ( gzread(initrd->u.file_handle, page, PAGE_SIZE) == -1 )
             {
                 PERROR("Error reading initrd image, could not");
                 return -EINVAL;
@@ -1344,16 +1344,20 @@ int xc_linux_build(int xc_handle,
 
     if ( (initrd_name != NULL) && (strlen(initrd_name) != 0) )
     {
+        initrd_info.type = INITRD_file;
+
         if ( (fd = open(initrd_name, O_RDONLY)) < 0 )
         {
             PERROR("Could not open the initial ramdisk image");
             goto error_out;
         }
 
-        initrd_info.type = INITRD_file;
-        initrd_info.u.fd = fd;
-        initrd_info.len  = lseek(fd, 0, SEEK_END);
-        lseek(fd, 0, SEEK_SET);
+        initrd_info.len = xc_get_filesz(fd);
+        if ( (initrd_info.u.file_handle = gzdopen(fd, "rb")) == NULL )
+        {
+            PERROR("Could not allocate decompression state for initrd");
+            goto error_out;
+        }
     }
 
     sts = xc_linux_build_internal(xc_handle, domid, image, image_size,
@@ -1363,8 +1367,8 @@ int xc_linux_build(int xc_handle,
 
  error_out:
     free(image);
-    if ( initrd_info.type == INITRD_file )
-        close(initrd_info.u.fd);
+    if ( initrd_info.type == INITRD_file && initrd_info.u.file_handle )
+        gzclose(initrd_info.u.file_handle);
     else if ( fd >= 0 )
         close(fd);
 

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