Re: [PATCH]fix bugs and compiling warnings in libgssglue

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On 13-01-23 01:21 PM, Steve Dickson wrote:

On 21/01/13 15:59, Yao Zhao wrote:
On 12-10-19 10:20 AM, Steve Dickson wrote:
On 19/10/12 08:26, J. Bruce Fields wrote:
Steve, is it you that maintains libgssglue now?
Yes, I do. Thanks for the ping. I did miss this...
Hi Steve,

Just want to follow up whether these are fixed?
Yes they were... in libgssglue-0.5
Thanks Steve!
Could you give me a link where to find it? I couldn't find it at
http://www.citi.umich.edu/projects/nfsv4/linux/libgssglue/

thanks,
yao
steved.

thanks,
yao
steved.

--b.

On Mon, Sep 17, 2012 at 03:07:52PM -0400, Yao Zhao wrote:
Hi,

The 4 attached patches fixed a couple of warnings and bug found when
compiling libgssglue.

thanks,
yao
--- a/src/g_canon_name.c
+++ b/src/g_canon_name.c
fix the bug:
g_canon_name.c:125:5: warning: passing argument 2 of '__gss_copy_namebuf' from incompatible pointer type [enabled by default]

the 2nd argument of __gss_copy_namebuf should be address of *gss_buffer_t, \
but a *gss_buffer_t is assigned.

what __gss_copy_namebuf does is to alloc memory for a gss_buffer_desc and \
copy from src and return its address.

if following code failed, gss_release_name will free \
union_canon_name->external_name.value if it is not NULL.

OM_uint32 __gss_copy_namebuf(src, dest)
      gss_buffer_t   src;
      gss_buffer_t   *dest;

typedef struct gss_union_name_t {
     gss_mechanism        gss_mech;
     gss_OID            name_type;
     gss_buffer_desc        external_name;
     /*
      * These last two fields are only filled in for mechanism
      * names.
      */
     gss_OID            mech_type;
     gss_name_t        mech_name;
} gss_union_name_desc, *gss_union_name_t;

typedef struct gss_buffer_desc_struct {
        size_t length;
        void FAR *value;
} gss_buffer_desc, FAR *gss_buffer_t;

Upstream-Status: Pending
Signed-off-by: Yao Zhao <yao.zhao@xxxxxxxxxxxxx>

@@ -121,11 +121,17 @@ gss_canonicalize_name (OM_uint32 *minor_
         union_canon_name->mech_name = mech_name;
   -    status = __gss_copy_namebuf(&union_input_name->external_name,
-                &union_canon_name->external_name);
-    if (status != GSS_S_COMPLETE)
-    goto failure;
+    union_canon_name->external_name.value = (void*) malloc(
+                      union_input_name->external_name.length + 1);
+    if (!union_canon_name->external_name.value)
+        goto failure;
   +    memcpy(union_canon_name->external_name.value,
+           union_input_name->external_name.value,
+           union_input_name->external_name.length);
+    union_canon_name->external_name.length =
+                      union_input_name->external_name.length;
+
       if (union_input_name->name_type != GSS_C_NO_OID) {
       status = generic_gss_copy_oid(minor_status,
                         union_input_name->name_type,
diff --git a/src/g_initialize.c b/src1/g_initialize.c
index 82fcce1..200f173 100644
--- a/src/g_initialize.c
+++ b/src/g_initialize.c

Fix the warning for getuid, geteuid
g_initialize.c: In function 'linux_initialize':
g_initialize.c:275:5: warning: implicit declaration of function 'getuid' [-Wimplicit-function-declaration]
g_initialize.c:275:5: warning: implicit declaration of function 'geteuid' [-Wimplicit-function-declaration]

Upstream-Status: Pending
Signed-off-by: Yao Zhao <yao.zhao@xxxxxxxxxxxxx>

@@ -29,6 +29,8 @@
   #include "mglueP.h"
   #include <stdlib.h>
   +#include <unistd.h>   /*getuid, geteuid */
+#include <sys/types.h>
   #include <stdio.h>
   #include <string.h>
   #include <ctype.h>
--- a/src/g_inq_cred.c
+++ b/src/g_inq_cred.c
1) add free if malloc failed for (*mechanisms)->elements
2) g_inq_cred.c: In function 'gss_inquire_cred':
g_inq_cred.c:161:8: warning: passing argument 3 of 'generic_gss_copy_oid' from incompatible pointer type [enabled by default]

Upstream-Status: Pending
Signed-off-by: Yao Zhao <yao.zhao@xxxxxxxxxxxxx>

@@ -152,13 +152,15 @@ gss_OID_set *        mechanisms;
                    union_cred->count);
       if ((*mechanisms)->elements == NULL) {
           *minor_status = ENOMEM;
+        free(*mechanisms);
+        *mechanisms = GSS_C_NO_OID_SET;
           return (GSS_S_FAILURE);
       }
         for (i=0; i < union_cred->count; i++) {
-        status = generic_gss_copy_oid(minor_status,
+        status = generic_gss_add_oid_set_member(minor_status,
                             &union_cred->mechs_array[i],
-                      &((*mechanisms)->elements[i]));
+                      mechanisms);
           if (status != GSS_S_COMPLETE)
               break;
       }
--- a/src/mglueP.h
+++ b/src/mglueP.h
fix the warning:
warning: implicit declaration of function 'generic_gss_copy_oid_set' [-Wimplicit-function-declaration]

Upstream-Status: Pending
Signed-off-by: Yao Zhao <yao.zhao@xxxxxxxxxxxxx>

@@ -447,6 +447,12 @@ OM_uint32 generic_gss_copy_oid
           gss_OID *        /* new_oid */
           );
   +OM_uint32 generic_gss_copy_oid_set
+       (OM_uint32 *minor_status,    /* minor_status */
+        const gss_OID_set_desc * const oidset,    /* oid */
+        gss_OID_set *new_oidset            /* new_oid */
+       );
+
   OM_uint32 generic_gss_create_empty_oid_set
          (OM_uint32 *,    /* minor_status */
           gss_OID_set *    /* oid_set */

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