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Implement CTTY grabbing when TIOCSCTTY is missing

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AIX is missing TIOCSCTTY, so we assign us a ctty via a open of the slave
device.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
This commit is contained in:
Anton Lundin
2014-04-15 13:09:05 +02:00
committed by John Hood
parent 814a2ae55d
commit 3f38a10a2e
1 changed files with 12 additions and 2 deletions
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src/util/pty_compat.cc
+12 -2
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@@ -140,12 +140,22 @@ pid_t my_forkpty( int *amaster, char *name,
case 0: /* Child */ case 0: /* Child */
if ( setsid() < 0 ) if ( setsid() < 0 )
perror( "setsid" ); perror( "setsid" );
#ifndef _AIX #ifdef TIOCSCTTY
if ( ioctl( slave, TIOCSCTTY, NULL ) < 0 ) { if ( ioctl( slave, TIOCSCTTY, NULL ) < 0 ) {
perror( "ioctl" ); perror( "ioctl" );
return -1; return -1;
} }
#endif #else
{
int dummy_fd;
dummy_fd = open (slave_name, O_RDWR);
if (dummy_fd < 0) {
perror( "open(slave_name)" );
return -1;
}
close (dummy_fd);
}
#endif /* TIOCSCTTY */
close( master ); close( master );
dup2( slave, STDIN_FILENO ); dup2( slave, STDIN_FILENO );
dup2( slave, STDOUT_FILENO ); dup2( slave, STDOUT_FILENO );