check return of sf_open() (and assert ai->outhandles)
check return of sf_open() (and assert ai->outhandles)

CID:22443

umlaeute/ambix,kronihias/libambix,kronihias/libambix,iem-projects/ambix,umlaeute/ambix,iem-projects/ambix,iem-projects/ambix,umlaeute/ambix