8.204. rsh

Bug Fixes

BZ#749283

Previously, the rshd daemon performed redundant calls of the setpwent() and endpwent() functions. As a consequence, rshd queried Network Information Security (NIS) servers on every remote shell (rsh) access. With this update, these redundant calls have been removed and rshd no longer contacts NIS servers unnecessarily.

BZ#802367

Prior to this update, the maximum number of command line arguments for the rsh application was not limited. However, the volume of data buffer allocated to the arguments is always finite. Consequently, rshd terminated unexpectedly when it attempted to allocate the buffer to commands with a vast number of arguments. This update implements a limit for command-line arguments in rsh, and the described rshd crash no longer occurs.

BZ#1098955

Previously, the pam_close_session() function was not called when a remote copy (rcp) connection completed. As a consequence, the PAM session did not terminate correctly. With this update, pam_close_session() is called and the PAM session terminates as intended.

BZ#1094360

Prior to this update, the rsh application was optimized through strict aliasing rules, even though it is not a performance-sensitive application. As a consequence, the GNU compiler collection (GCC) generated warning messages about breaking the strict-aliasing rules, despite correct functionality being the priority for rsh. With this update, strict aliasing has been disabled for rsh. Therefore, GCC now ignores the strict aliasing rules and no longer interrupts rsh processes with warning messages. However, this may also lead to a slight decrease in performance.