From 7213b5ebec8cd7f1955f5aa8ee4050c39cd11ed1 Mon Sep 17 00:00:00 2001
From: Derrell Lipman <derrell@samba.org>
Date: Tue, 15 May 2007 19:10:29 +0000
Subject: [PATCH] r22914: - Fixes bug 4599.  A missing <code>if</code>
 statement forced subseqeuent   attempts to set attributes to fail.

- I also noticed that missing attributes were setting an invalid return string
  by getxattr(), e.g. if there was not group, the return string had "GROUP:;"
  instead of excluding the GROUP attribute entirely as it should.  The big
  problem with the way it was, is that the string could not then be passed to
  setxattr() and parsed.
---
 examples/libsmbclient/Makefile   |  5 +++
 examples/libsmbclient/testacl2.c | 78 ++++++++++++++++++++++++++++++++++++++++
 source/libsmb/libsmbclient.c     | 12 ++++---
 3 files changed, 91 insertions(+), 4 deletions(-)
 create mode 100644 examples/libsmbclient/testacl2.c

diff --git a/examples/libsmbclient/Makefile b/examples/libsmbclient/Makefile
index ee117c9fe92..d44df77b3fb 100644
--- a/examples/libsmbclient/Makefile
+++ b/examples/libsmbclient/Makefile
@@ -17,6 +17,7 @@ LIBSMBCLIENT = ../../source/bin/libsmbclient.a -ldl -lresolv
 TESTS=	testsmbc \
 	tree \
 	testacl \
+	testacl2 \
 	testbrowse \
 	testbrowse2 \
 	teststat \
@@ -39,6 +40,10 @@ testacl: testacl.o
 	@echo Linking testacl
 	$(CC) `gtk-config --cflags` $(CFLAGS) $(LDFLAGS) -o $@ $< `gtk-config --libs` $(LIBSMBCLIENT) -lpopt
 
+testacl2: testacl2.o
+	@echo Linking testacl2
+	$(CC) `gtk-config --cflags` $(CFLAGS) $(LDFLAGS) -o $@ $< `gtk-config --libs` $(LIBSMBCLIENT) -lpopt
+
 testbrowse: testbrowse.o
 	@echo Linking testbrowse
 	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBSMBCLIENT) -lpopt
diff --git a/examples/libsmbclient/testacl2.c b/examples/libsmbclient/testacl2.c
new file mode 100644
index 00000000000..df38fe208ed
--- /dev/null
+++ b/examples/libsmbclient/testacl2.c
@@ -0,0 +1,78 @@
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <popt.h>
+#include "libsmbclient.h"
+#include "get_auth_data_fn.h"
+
+enum acl_mode
+{
+    SMB_ACL_GET,
+    SMB_ACL_SET,
+    SMB_ACL_DELETE,
+    SMB_ACL_MODIFY,
+    SMB_ACL_ADD,
+    SMB_ACL_CHOWN,
+    SMB_ACL_CHGRP
+};
+
+
+int main(int argc, const char *argv[])
+{
+    int i;
+    int opt;
+    int flags;
+    int debug = 0;
+    int numeric = 0;
+    int full_time_names = 0;
+    enum acl_mode mode = SMB_ACL_GET;
+    static char *the_acl = NULL;
+    int ret;
+    char *p;
+    char *debugstr;
+    char value[1024];
+
+    if (smbc_init(get_auth_data_fn, debug) != 0)
+    {
+        printf("Could not initialize smbc_ library\n");
+        return 1;
+    }
+
+    SMBCCTX *context = smbc_set_context(NULL);
+    smbc_option_set(context, "full_time_names", 1);
+    
+    the_acl = strdup("system.nt_sec_desc.*");
+    ret = smbc_getxattr(argv[1], the_acl, value, sizeof(value));
+    if (ret < 0)
+    {
+        printf("Could not get attributes for [%s] %d: %s\n",
+               argv[1], errno, strerror(errno));
+        return 1;
+    }
+    
+    printf("Attributes for [%s] are:\n%s\n", argv[1], value);
+
+    flags = 0;
+    debugstr = "set attributes (1st time)";
+        
+    ret = smbc_setxattr(argv[1], the_acl, value, strlen(value), flags);
+    if (ret < 0)
+    {
+        printf("Could not %s for [%s] %d: %s\n",
+               debugstr, argv[1], errno, strerror(errno));
+        return 1;
+    }
+    
+    flags = 0;
+    debugstr = "set attributes (2nd time)";
+        
+    ret = smbc_setxattr(argv[1], the_acl, value, strlen(value), flags);
+    if (ret < 0)
+    {
+        printf("Could not %s for [%s] %d: %s\n",
+               debugstr, argv[1], errno, strerror(errno));
+        return 1;
+    }
+    
+    return 0;
+}
diff --git a/source/libsmb/libsmbclient.c b/source/libsmb/libsmbclient.c
index b1f073debcc..32f195547fc 100644
--- a/source/libsmb/libsmbclient.c
+++ b/source/libsmb/libsmbclient.c
@@ -4546,7 +4546,7 @@ cacl_get(SMBCCTX *context,
                                                 return -1;
                                         }
                                         n = strlen(p);
-                                } else {
+                                } else if (sidstr[0] != '\0') {
                                         n = snprintf(buf, bufsize,
                                                      ",OWNER:%s", sidstr);
                                 }
@@ -4591,7 +4591,7 @@ cacl_get(SMBCCTX *context,
                                                 return -1;
                                         }
                                         n = strlen(p);
-                                } else {
+                                } else if (sidstr[0] != '\0') {
                                         n = snprintf(buf, bufsize,
                                                      ",GROUP:%s", sidstr);
                                 }
@@ -5317,7 +5317,9 @@ smbc_setxattr_ctx(SMBCCTX *context,
                 ipc_srv = smbc_attr_server(context, server, share,
                                            workgroup, user, password,
                                            &pol);
-                srv->no_nt_session = True;
+                if (! ipc_srv) {
+                        srv->no_nt_session = True;
+                }
         } else {
                 ipc_srv = NULL;
         }
@@ -5742,7 +5744,9 @@ smbc_removexattr_ctx(SMBCCTX *context,
                 ipc_srv = smbc_attr_server(context, server, share,
                                            workgroup, user, password,
                                            &pol);
-                srv->no_nt_session = True;
+                if (! ipc_srv) {
+                        srv->no_nt_session = True;
+                }
         } else {
                 ipc_srv = NULL;
         }
-- 
2.11.4.GIT