diff options
| -rw-r--r-- | man2/ioperm.2 | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/man2/ioperm.2 b/man2/ioperm.2 index 91d081c09d..6171e1c870 100644 --- a/man2/ioperm.2 +++ b/man2/ioperm.2 @@ -63,11 +63,9 @@ system call had to be used (with a argument of 3). Since Linux 2.6.8, 65,536 I/O ports can be specified. -Permissions are not inherited by the child created by -.BR fork (2); -following a +Permissions are inherited by the child created by .BR fork (2) -the child must turn on those permissions that it needs. +(but see NOTES). Permissions are preserved across .BR execve (2); this is useful for giving port access permissions to unprivileged @@ -107,6 +105,10 @@ The .I /proc/ioports file shows the I/O ports that are currently allocated on the system. +Before Linux 2.4, +permissions were not inherited by a child created by +.BR fork (2). + Glibc has an .BR ioperm () prototype both in |