libexport.a: export_find() should handle address parsing errors From: Chuck Lever An address mask parsing error can cause client_init(), and therefore client_dup(), to make our process exit suddenly. Soon we want to add more complex address parsing in client_init(), so we need this interface to be a little more robust. Since export_find() can return NULL in some cases, it can handle NULL returns from its subroutines if an address parsing error occurs, or if memory is exhausted. Allow for client_dup() to return NULL instead of exiting sideways. Signed-off-by: Chuck Lever Signed-off-by: Steve Dickson --- support/export/export.c | 4 ++++ 1 file changed, 4 insertions(+) --- nfs-utils-1.2.1.orig/support/export/export.c +++ nfs-utils-1.2.1/support/export/export.c @@ -129,6 +129,10 @@ export_dup(nfs_export *exp, struct hoste if (exp->m_export.e_hostname) new->m_export.e_hostname = xstrdup(exp->m_export.e_hostname); clp = client_dup(exp->m_client, hp); + if (clp == NULL) { + export_free(new); + return NULL; + } clp->m_count++; new->m_client = clp; new->m_mayexport = exp->m_mayexport;