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Commit 06c45a8d authored by Jason Edmeades's avatar Jason Edmeades Committed by Alexandre Julliard
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msi: Correct the setting of environment variables.

Contrary to the MSDN, you can 'create only' whilst using a previous value (ie +-variable and [~];value). This breaks the install of an application I was debugging who uses that throughout for all their variables. In addition whilst adding some tests I've also cleaned up invalid prefix syntax handling and semicolon removal if the original string is empty.
parent bfe9e6d7
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Showing with 73 additions and 8 deletions
dlls/msi/action.c
View file @ 06c45a8d
......@@ -4924,17 +4924,31 @@ static LONG env_set_flags( LPCWSTR *name, LPCWSTR *value, DWORD *flags )
LPCWSTR ptr = *value;
if (!strncmpW(ptr, prefix, prefix_len))
{
if (ptr[prefix_len] == szSemiColon[0])
{
*flags |= ENV_MOD_APPEND;
*value += lstrlenW(prefix);
}
else
{
*value = NULL;
}
}
else if (lstrlenW(*value) >= prefix_len)
{
ptr += lstrlenW(ptr) - prefix_len;
if (!lstrcmpW(ptr, prefix))
{
if ((ptr-1) > *value && *(ptr-1) == szSemiColon[0])
{
*flags |= ENV_MOD_PREFIX;
/* the "[~]" will be removed by deformat_string */;
}
else
{
*value = NULL;
}
}
}
}
......@@ -4979,7 +4993,7 @@ static UINT ITERATE_WriteEnvironmentString( MSIRECORD *rec, LPVOID param )
TRACE("name %s value %s\n", debugstr_w(name), debugstr_w(value));
res = env_set_flags(&name, &value, &flags);
if (res != ERROR_SUCCESS)
if (res != ERROR_SUCCESS || !value)
goto done;
if (value && !deformat_string(package, value, &deformatted))
......@@ -5025,6 +5039,9 @@ static UINT ITERATE_WriteEnvironmentString( MSIRECORD *rec, LPVOID param )
goto done;
}
/* If we are appending but the string was empty, strip ; */
if ((flags & ENV_MOD_APPEND) && (value[0] == szSemiColon[0])) value++;
size = (lstrlenW(value) + 1) * sizeof(WCHAR);
newval = strdupW(value);
if (!newval)
......@@ -5035,7 +5052,8 @@ static UINT ITERATE_WriteEnvironmentString( MSIRECORD *rec, LPVOID param )
}
else
{
if (flags & ENV_ACT_SETABSENT)
/* Contrary to MSDN, +-variable to [~];path works */
if (flags & ENV_ACT_SETABSENT && !(flags & ENV_MOD_MASK))
{
res = ERROR_SUCCESS;
goto done;
......@@ -5065,7 +5083,7 @@ static UINT ITERATE_WriteEnvironmentString( MSIRECORD *rec, LPVOID param )
int multiplier = 0;
if (flags & ENV_MOD_APPEND) multiplier++;
if (flags & ENV_MOD_PREFIX) multiplier++;
mod_size = (lstrlenW(value) + 1) * multiplier;
mod_size = lstrlenW(value) * multiplier;
size += mod_size * sizeof(WCHAR);
}
......@@ -5080,15 +5098,13 @@ static UINT ITERATE_WriteEnvironmentString( MSIRECORD *rec, LPVOID param )
if (flags & ENV_MOD_PREFIX)
{
lstrcpyW(newval, value);
lstrcatW(newval, szSemiColon);
ptr = newval + lstrlenW(value) + 1;
ptr = newval + lstrlenW(value);
}
lstrcpyW(ptr, data);
if (flags & ENV_MOD_APPEND)
{
lstrcatW(newval, szSemiColon);
lstrcatW(newval, value);
}
}
......
dlls/msi/tests/install.c
View file @ 06c45a8d
......@@ -226,7 +226,36 @@ static const CHAR environment_dat[] = "Environment\tName\tValue\tComponent_\n"
"Var7\t!-MSITESTVAR7\t\tOne\n"
"Var8\t!-*MSITESTVAR8\t\tOne\n"
"Var9\t=-MSITESTVAR9\t\tOne\n"
"Var10\t=MSITESTVAR10\t\tOne\n";
"Var10\t=MSITESTVAR10\t\tOne\n"
"Var11\t+-MSITESTVAR11\t[~];1\tOne\n"
"Var12\t+-MSITESTVAR11\t[~];2\tOne\n"
"Var13\t+-MSITESTVAR12\t[~];1\tOne\n"
"Var14\t=MSITESTVAR13\t[~];1\tOne\n"
"Var15\t=MSITESTVAR13\t[~];2\tOne\n"
"Var16\t=MSITESTVAR14\t;1;\tOne\n"
"Var17\t=MSITESTVAR15\t;;1;;\tOne\n"
"Var18\t=MSITESTVAR16\t 1 \tOne\n"
"Var19\t+-MSITESTVAR17\t1\tOne\n"
"Var20\t+-MSITESTVAR17\t;;2;;[~]\tOne\n"
"Var21\t+-MSITESTVAR18\t1\tOne\n"
"Var22\t+-MSITESTVAR18\t[~];;2;;\tOne\n"
"Var23\t+-MSITESTVAR19\t1\tOne\n"
"Var24\t+-MSITESTVAR19\t[~]2\tOne\n"
"Var25\t+-MSITESTVAR20\t1\tOne\n"
"Var26\t+-MSITESTVAR20\t2[~]\tOne\n";
/* Expected results, starting from MSITESTVAR11 onwards */
static const CHAR *environment_dat_results[] = {"1;2", /*MSITESTVAR11*/
"1", /*MSITESTVAR12*/
"1;2", /*MSITESTVAR13*/
";1;", /*MSITESTVAR14*/
";;1;;", /*MSITESTVAR15*/
" 1 ", /*MSITESTVAR16*/
";;2;;1", /*MSITESTVAR17*/
"1;;2;;", /*MSITESTVAR18*/
"1", /*MSITESTVAR19*/
"1", /*MSITESTVAR20*/
NULL};
static const CHAR condition_dat[] = "Feature_\tLevel\tCondition\n"
"s38\ti2\tS255\n"
......@@ -6732,6 +6761,7 @@ static void test_envvar(void)
LONG res;
DWORD type, size;
char buffer[16];
UINT i;
if (on_win9x)
{
......@@ -6800,8 +6830,27 @@ static void test_envvar(void)
res = RegDeleteValueA(env, "MSITESTVAR10");
ok(res == ERROR_FILE_NOT_FOUND, "Expected ERROR_FILE_NOT_FOUND, got %d\n", res);
RegCloseKey(env);
i = 11;
while (environment_dat_results[(i-11)]) {
char name[20];
sprintf(name, "MSITESTVAR%d", i);
type = REG_NONE;
size = sizeof(buffer);
buffer[0] = 0;
res = RegQueryValueExA(env, name, NULL, &type, (LPBYTE)buffer, &size);
ok(res == ERROR_SUCCESS, "%d: Expected ERROR_SUCCESS, got %d\n", i, res);
ok(type == REG_SZ, "%d: Expected REG_SZ, got %u\n", i, type);
ok(!lstrcmp(buffer, environment_dat_results[(i-11)]), "%d: Expected %s, got %s\n",
i, environment_dat_results[(i-11)], buffer);
res = RegDeleteValueA(env, name);
ok(res == ERROR_SUCCESS, "%d: Expected ERROR_SUCCESS, got %d\n", i, res);
i++;
}
RegCloseKey(env);
delete_pf("msitest\\cabout\\new\\five.txt", TRUE);
delete_pf("msitest\\cabout\\new", FALSE);
delete_pf("msitest\\cabout\\four.txt", TRUE);
......
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