| commit | c0fe5b9da9f98b83262717c0090817f1fbb3d8a0 | [log] [tgz] |
|---|---|---|
| author | Rich Felker <dalias@aerifal.cx> | Fri Jul 22 00:25:56 2011 -0400 |
| committer | Rich Felker <dalias@aerifal.cx> | Fri Jul 22 00:25:56 2011 -0400 |
| tree | af009ffeef44eb430a850edaedb0f544ce3e88d0 | |
| parent | d40e344f7b311980dfe3c165d8cbecfe04c12bd2 [diff] |
check for fd exhaustion in forkpty we cannot report failure after forking, so the idea is to ensure prior to fork that fd 0,1,2 exist. this will prevent dup2 from possibly hitting a resource limit and failing in the child process. fcntl rather than dup2 is used prior to forking to avoid race conditions.