Claudio Fontana : kernel32: Allow empty profile section and key name strings.

[Alexandre Julliard]

Module: wine
Branch: stable
Commit: 346b743bc1a009d9e290ddb0446084f94f142e8c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=346b743bc1a009d9e290ddb04...

Author: Claudio Fontana <claudio.fontana(a)linaro.org>
Date:   Fri Mar 22 23:49:28 2019 +0100

kernel32: Allow empty profile section and key name strings.

Consider "" a normal section, and fix calculation for zero
length section name string and key name string.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=8036
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=18099
Signed-off-by: Claudio Fontana <claudio.fontana(a)gmail.com>
Signed-off-by: Vijay Kiran Kamuju <infyquest(a)gmail.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>
(cherry picked from commit be678a52e163111085ab3694b6c1f3af8e4d4a4a)
Signed-off-by: Michael Stefaniuc <mstefani(a)winehq.org>

---

 dlls/kernel32/profile.c       | 40 ++++++++++++++++------------------------
 dlls/kernel32/tests/profile.c |  2 --
 2 files changed, 16 insertions(+), 26 deletions(-)

diff --git a/dlls/kernel32/profile.c b/dlls/kernel32/profile.c
index 65a8f28..027693e 100644
--- a/dlls/kernel32/profile.c
+++ b/dlls/kernel32/profile.c
@@ -500,7 +500,7 @@ static BOOL PROFILE_DeleteSection( PROFILESECTION **section, LPCWSTR name )
 {
     while (*section)
     {
-        if ((*section)->name[0] && !strcmpiW( (*section)->name, name ))
+        if (!strcmpiW( (*section)->name, name ))
         {
             PROFILESECTION *to_del = *section;
             *section = to_del->next;
@@ -524,7 +524,7 @@ static BOOL PROFILE_DeleteKey( PROFILESECTION **section,
 {
     while (*section)
     {
-        if ((*section)->name[0] && !strcmpiW( (*section)->name, section_name ))
+        if (!strcmpiW( (*section)->name, section_name ))
         {
             PROFILEKEY **key = &(*section)->key;
             while (*key)
@@ -556,7 +556,7 @@ static void PROFILE_DeleteAllKeys( LPCWSTR section_name)
     PROFILESECTION **section= &CurProfile->section;
     while (*section)
     {
-        if ((*section)->name[0] && !strcmpiW( (*section)->name, section_name ))
+        if (!strcmpiW( (*section)->name, section_name ))
         {
             PROFILEKEY **key = &(*section)->key;
             while (*key)
@@ -582,31 +582,28 @@ static PROFILEKEY *PROFILE_Find( PROFILESECTION **section, LPCWSTR section_name,
                                  LPCWSTR key_name, BOOL create, BOOL create_always )
 {
     LPCWSTR p;
-    int seclen, keylen;
+    int seclen = 0, keylen = 0;
 
     while (PROFILE_isspaceW(*section_name)) section_name++;
     if (*section_name)
+    {
         p = section_name + strlenW(section_name) - 1;
-    else
-        p = section_name;
-
-    while ((p > section_name) && PROFILE_isspaceW(*p)) p--;
-    seclen = p - section_name + 1;
+        while ((p > section_name) && PROFILE_isspaceW(*p)) p--;
+        seclen = p - section_name + 1;
+    }
 
     while (PROFILE_isspaceW(*key_name)) key_name++;
     if (*key_name)
+    {
         p = key_name + strlenW(key_name) - 1;
-    else
-        p = key_name;
-
-    while ((p > key_name) && PROFILE_isspaceW(*p)) p--;
-    keylen = p - key_name + 1;
+        while ((p > key_name) && PROFILE_isspaceW(*p)) p--;
+        keylen = p - key_name + 1;
+    }
 
     while (*section)
     {
-        if ( ((*section)->name[0])
-             && (!(strncmpiW( (*section)->name, section_name, seclen )))
-             && (((*section)->name)[seclen] == '\0') )
+        if (!strncmpiW((*section)->name, section_name, seclen) &&
+            ((*section)->name)[seclen] == '\0')
         {
             PROFILEKEY **key = &(*section)->key;
 
@@ -873,7 +870,7 @@ static INT PROFILE_GetSection( PROFILESECTION *section, LPCWSTR section_name,
 
     while (section)
     {
-        if (section->name[0] && !strcmpiW( section->name, section_name ))
+        if (!strcmpiW( section->name, section_name ))
         {
             UINT oldlen = len;
             for (key = section->key; key; key = key->next)
@@ -988,11 +985,6 @@ static INT PROFILE_GetString( LPCWSTR section, LPCWSTR key_name,
     if (!def_val) def_val = empty_strW;
     if (key_name)
     {
-	if (!key_name[0])
-        {
-            PROFILE_CopyEntry(buffer, def_val, len, TRUE);
-            return strlenW(buffer);
-        }
         key = PROFILE_Find( &CurProfile->section, section, key_name, FALSE, FALSE);
         PROFILE_CopyEntry( buffer, (key && key->value) ? key->value : def_val,
                            len, TRUE );
@@ -1002,7 +994,7 @@ static INT PROFILE_GetString( LPCWSTR section, LPCWSTR key_name,
         return strlenW( buffer );
     }
     /* no "else" here ! */
-    if (section && section[0])
+    if (section)
     {
         INT ret = PROFILE_GetSection(CurProfile->section, section, buffer, len, FALSE);
         if (!buffer[0]) /* no luck -> def_val */
diff --git a/dlls/kernel32/tests/profile.c b/dlls/kernel32/tests/profile.c
index 4dbe129..e443b25 100644
--- a/dlls/kernel32/tests/profile.c
+++ b/dlls/kernel32/tests/profile.c
@@ -153,9 +153,7 @@ static void test_profile_string(void)
 
     /* works only in unicode, ascii crashes */
     ret=GetPrivateProfileStringW(sW, emptyW, emptyW, bufW, ARRAY_SIZE(bufW), TESTFILE2W);
-    todo_wine
     ok(ret == 10, "expected 10, got %u\n", ret);
-    todo_wine
     ok(!lstrcmpW(valnokeyW,bufW), "expected %s, got %s\n",
         wine_dbgstr_w(valnokeyW), wine_dbgstr_w(bufW) );