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author | Ken Raeburn <raeburn@mit.edu> | 2008-07-21 20:59:24 +0000 |
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committer | Ken Raeburn <raeburn@mit.edu> | 2008-07-21 20:59:24 +0000 |
commit | aeb3688ce0a80b53d907863fa1a0611ac1340915 (patch) | |
tree | b3d9a9d31d907121bf1a51c35f185ec76d4b5dda /src/lib/krb5/ccache/ccdefault.c | |
parent | 7b9e92de0dba2bdedc861fd19cacf08a3805461c (diff) | |
download | krb5-aeb3688ce0a80b53d907863fa1a0611ac1340915.tar.gz krb5-aeb3688ce0a80b53d907863fa1a0611ac1340915.tar.xz krb5-aeb3688ce0a80b53d907863fa1a0611ac1340915.zip |
Another check for null return from krb5_cc_default_name
ticket: 5980
git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@20561 dc483132-0cff-0310-8789-dd5450dbe970
Diffstat (limited to 'src/lib/krb5/ccache/ccdefault.c')
-rw-r--r-- | src/lib/krb5/ccache/ccdefault.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/src/lib/krb5/ccache/ccdefault.c b/src/lib/krb5/ccache/ccdefault.c index c44a4771d3..db308b8ec5 100644 --- a/src/lib/krb5/ccache/ccdefault.c +++ b/src/lib/krb5/ccache/ccdefault.c @@ -1,7 +1,7 @@ /* * lib/krb5/ccache/ccdefault.c * - * Copyright 1990, 2007 by the Massachusetts Institute of Technology. + * Copyright 1990, 2007, 2008 by the Massachusetts Institute of Technology. * All Rights Reserved. * * Export of this software from the United States of America may @@ -45,22 +45,30 @@ static HANDLE hLeashDLL = INVALID_HANDLE_VALUE; krb5_error_code KRB5_CALLCONV krb5_cc_default(krb5_context context, krb5_ccache *ccache) { - krb5_os_context os_ctx; + const char *default_name; if (!context || context->magic != KV5M_CONTEXT) return KV5M_CONTEXT; + + default_name = krb5_cc_default_name(context); + if (default_name == NULL) { + /* Could be a bogus context, or an allocation failure, or + other things. Unfortunately the API doesn't allow us + to find out any specifics. */ + return KRB5_FCC_INTERNAL; + } - os_ctx = &context->os_context; - - return krb5_cc_resolve(context, krb5_cc_default_name(context), ccache); + return krb5_cc_resolve(context, default_name, ccache); } -/* This is the internal function which opens the default ccache. On platforms supporting - the login library's automatic popup dialog to get tickets, this function also updated the - library's internal view of the current principal associated with this cache. - - All krb5 and GSS functions which need to open a cache to get a tgt to obtain service tickets - should call this function, not krb5_cc_default() */ +/* This is the internal function which opens the default ccache. On + platforms supporting the login library's automatic popup dialog to + get tickets, this function also updated the library's internal view + of the current principal associated with this cache. + + All krb5 and GSS functions which need to open a cache to get a tgt + to obtain service tickets should call this function, not + krb5_cc_default(). */ krb5_error_code KRB5_CALLCONV krb5int_cc_default(krb5_context context, krb5_ccache *ccache) |