diff options
Diffstat (limited to 'src/lib/krb4/mk_err.c')
| -rw-r--r-- | src/lib/krb4/mk_err.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/lib/krb4/mk_err.c b/src/lib/krb4/mk_err.c index e30e299..029aa9f 100644 --- a/src/lib/krb4/mk_err.c +++ b/src/lib/krb4/mk_err.c @@ -41,6 +41,14 @@ krb_mk_err(p,e,e_string) { u_char *start; + /* Just return the buffer length if p is NULL, because writing to the + * buffer would be a bad idea. Note that this feature is a change from + * previous versions, and can therefore only be used safely in this + * source tree, where we know this function supports it. */ + if(p == NULL) { + return 2 + sizeof(e) + strlen(e_string); + } + start = p; /* Create fixed part of packet */ |