From: Marco van Wieringen <mvw@planets.elm.net>
Date: Sat, 2 Oct 2010 08:49:35 +0000 (+0200)
Subject: Only allocate the alist for holding the xattr when we have the first complete xattr... 
X-Git-Tag: Release-5.2.1~1034
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=e059da87507e8b152af0884004638563ceb3899c;p=bacula%2Fbacula

Only allocate the alist for holding the xattr when we have the first complete xattr assembled.
Changed the code path so we always walk the same cleanup path after the bail_out label so we
don't have to code every special way of exiting the function.
---

diff --git a/bacula/src/filed/xattr.c b/bacula/src/filed/xattr.c
index a222a8b3fb..12850572ad 100644
--- a/bacula/src/filed/xattr.c
+++ b/bacula/src/filed/xattr.c
@@ -34,10 +34,10 @@
  * Currently we support the following OSes:
  *   - AIX (Extended Attributes)
  *   - Darwin (Extended Attributes)
+ *   - FreeBSD (Extended Attributes)
  *   - IRIX (Extended Attributes)
  *   - Linux (Extended Attributes)
  *   - NetBSD (Extended Attributes)
- *   - FreeBSD (Extended Attributes)
  *   - OpenBSD (Extended Attributes)
  *     (As it seems either they never implemented xattr or they are removed
  *      the support as it stated it was in version 3.1 but the current syscall
@@ -45,6 +45,7 @@
  *      might eventually support xattr on OpenBSD when they implemented them using
  *      the same interface as FreeBSD and NetBSD.
  *   - Solaris (Extended Attributes and Extensible Attributes)
+ *   - Tru64 (Extended Attributes)
  *
  *   Written by Marco van Wieringen, November MMVIII
  *
@@ -393,8 +394,6 @@ static bxattr_exit_code aix_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
    }
    xattr_list[xattr_list_len] = '\0';
 
-   xattr_value_list = New(alist(10, not_owned_by_alist));
-
    /*
     * Walk the list of extended attributes names and retrieve the data.
     * We already count the bytes needed for serializing the stream later on.
@@ -497,6 +496,10 @@ static bxattr_exit_code aix_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
          }
       }
 
+      if (xattr_value_list == NULL) {
+         xattr_value_list = New(alist(10, not_owned_by_alist));
+      }
+
       xattr_value_list->append(current_xattr);
       current_xattr = NULL;
       xattr_count++;
@@ -522,16 +525,12 @@ static bxattr_exit_code aix_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
          goto bail_out;
       }
 
-      xattr_drop_internal_table(xattr_value_list);
-
       /*
        * Send the datastream to the SD.
        */
-      return send_xattr_stream(jcr, os_default_xattr_streams[0]);
+      retval = send_xattr_stream(jcr, os_default_xattr_streams[0]);
    } else {
-      xattr_drop_internal_table(xattr_value_list);
-
-      return bxattr_exit_ok;
+      retval = bxattr_exit_ok;
    }
 
 bail_out:
@@ -630,8 +629,6 @@ static bxattr_exit_code irix_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
    POOLMEM *xattrbuf = get_memory(ATTR_MAX_VALUELEN);
    berrno be;
 
-   xattr_value_list = New(alist(10, not_owned_by_alist));
-
    for (cnt = 0; xattr_naming_spaces[cnt].name != NULL; cnt++) {
       memset(cursor, 0, sizeof(attrlist_cursor_t));
       while (1) {
@@ -734,6 +731,10 @@ static bxattr_exit_code irix_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
                goto bail_out;
             }
 
+            if (xattr_value_list == NULL) {
+               xattr_value_list = New(alist(10, not_owned_by_alist));
+            }
+
             xattr_value_list->append(current_xattr);
             current_xattr = NULL;
             xattr_count++;
@@ -763,16 +764,12 @@ static bxattr_exit_code irix_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
          goto bail_out;
       }
 
-      xattr_drop_internal_table(xattr_value_list);
-
       /*
        * Send the datastream to the SD.
        */
-      return send_xattr_stream(jcr, os_default_xattr_streams[0]);
+      retval = send_xattr_stream(jcr, os_default_xattr_streams[0]);
    } else {
-      xattr_drop_internal_table(xattr_value_list);
-
-      return bxattr_exit_ok;
+      retval = bxattr_exit_ok;
    }
 
 bail_out:
@@ -1009,8 +1006,6 @@ static bxattr_exit_code generic_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
    }
    xattr_list[xattr_list_len] = '\0';
 
-   xattr_value_list = New(alist(10, not_owned_by_alist));
-
    /*
     * Walk the list of extended attributes names and retrieve the data.
     * We already count the bytes needed for serializing the stream later on.
@@ -1131,6 +1126,10 @@ static bxattr_exit_code generic_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
          }
       }
 
+      if (xattr_value_list == NULL) {
+         xattr_value_list = New(alist(10, not_owned_by_alist));
+      }
+
       xattr_value_list->append(current_xattr);
       current_xattr = NULL;
       xattr_count++;
@@ -1156,16 +1155,12 @@ static bxattr_exit_code generic_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
          goto bail_out;
       }
 
-      xattr_drop_internal_table(xattr_value_list);
-
       /*
        * Send the datastream to the SD.
        */
-      return send_xattr_stream(jcr, os_default_xattr_streams[0]);
+      retval = send_xattr_stream(jcr, os_default_xattr_streams[0]);
    } else {
-      xattr_drop_internal_table(xattr_value_list);
-
-      return bxattr_exit_ok;
+      retval = bxattr_exit_ok;
    }
 
 bail_out:
@@ -1296,8 +1291,6 @@ static bxattr_exit_code bsd_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
    bxattr_exit_code retval = bxattr_exit_error;
    berrno be;
 
-   xattr_value_list = New(alist(10, not_owned_by_alist));
-
    /*
     * Loop over all available xattr namespaces.
     */
@@ -1518,6 +1511,10 @@ static bxattr_exit_code bsd_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
             break;
          }
 
+         if (xattr_value_list == NULL) {
+            xattr_value_list = New(alist(10, not_owned_by_alist));
+         }
+
          xattr_value_list->append(current_xattr);
          current_xattr = NULL;
          xattr_count++;
@@ -1552,16 +1549,12 @@ static bxattr_exit_code bsd_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
          goto bail_out;
       }
 
-      xattr_drop_internal_table(xattr_value_list);
-
       /*
        * Send the datastream to the SD.
        */
-      return send_xattr_stream(jcr, os_default_xattr_streams[0]);
+      retval = send_xattr_stream(jcr, os_default_xattr_streams[0]);
    } else {
-      xattr_drop_internal_table(xattr_value_list);
-
-      return bxattr_exit_ok;
+      retval = bxattr_exit_ok;
    }
 
 bail_out:
@@ -1775,9 +1768,7 @@ static bxattr_exit_code tru64_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
       break;
    }
 
-   xattr_value_list = New(alist(10, not_owned_by_alist));
-
-   /**
+   /*
     * Walk the list of extended attributes names and retrieve the data.
     * We already count the bytes needed for serializing the stream later on.
     */
@@ -1847,6 +1838,10 @@ static bxattr_exit_code tru64_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
          goto bail_out;
       }
 
+      if (xattr_value_list == NULL) {
+         xattr_value_list = New(alist(10, not_owned_by_alist));
+      }
+
       xattr_value_list->append(current_xattr);
       current_xattr = NULL;
       xattr_count++;