From 869a2ccbbf1601b25652fc96dff2ba94ad408712 Mon Sep 17 00:00:00 2001 From: Jeffrey Altman Date: Mon, 12 Feb 2007 14:54:28 +0000 Subject: hack to permit GetEnvironmentVariable usage without requiring getenv() conversion Windows has a major flaw when it comes to the use of getenv/putenv. getenv/putenv do not modify the actual environment of the process. Instead, they modify a copy of the environment block at the time the C Runtime Library was initialized for the current module. In other words, the C Runtime Library environment block for the executable is not the same as the C Runtime Library environment block for the krb5_32.dll library, etc. This results in problems when a process wants to set the default ccache name outside the krb5_context. The krb5_context default ccname disappears when the context is destroyed. gss_acquire_cred() suffers from the creation and destruction of krb5_contexts and therefore the krb5_context default ccname cannot be used to set a default ccname. Instead, the process environment must be used. In order to modify the process environment, SetEnvironmentVariable() must be used. However, this does not result in the C Runtime Library environment blocks being updated. putenv() does not see the definition of "KRB5CCNAME". This patch modifies get_os_ccname() for Windows to check GetEnvironmentVariable() before checking the registry. This hack will work as long as there is no "KRB5CCNAME" variable in the C Runtime Library environment block. The long term solution is to replace all calls to getenv and putenv with GetEnvironmentVariable/SetEnvironmentVariable for Windows. ticket: new tags: pullup git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@19154 dc483132-0cff-0310-8789-dd5450dbe970 --- src/lib/krb5/os/ccdefname.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/lib/krb5/os/ccdefname.c b/src/lib/krb5/os/ccdefname.c index 4a9d184cd..e5059a5e6 100644 --- a/src/lib/krb5/os/ccdefname.c +++ b/src/lib/krb5/os/ccdefname.c @@ -148,6 +148,15 @@ static krb5_error_code get_from_os(char *name_buf, int name_size) char *prefix = krb5_cc_dfl_ops->prefix; int size; char *p; + DWORD gle; + + SetLastError(0); + GetEnvironmentVariable(KRB5_ENV_CCNAME, name_buf, name_size); + gle = GetLastError(); + if (gle == 0) + return 0; + else if (gle != ERROR_ENVVAR_NOT_FOUND) + return ENOMEM; if (get_from_registry(HKEY_CURRENT_USER, name_buf, name_size) != 0) -- cgit
path: root/lib_m68k/time.c
blob: 7eaea5e7f77deddffede0a00cd5cdc03c4c45e5b (plain) 
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