diff options
Diffstat (limited to 'man2/kill.2')
| -rw-r--r-- | man2/kill.2 | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/man2/kill.2 b/man2/kill.2 index def4a99b66..b3a6e012d2 100644 --- a/man2/kill.2 +++ b/man2/kill.2 @@ -100,7 +100,23 @@ has not yet been .BR wait (2)ed for. .SH STANDARDS -POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD. +POSIX.1-2008. +.SH HISTORY +POSIX.1-2001, SVr4, 4.3BSD. +.SS Linux notes +Across different kernel versions, Linux has enforced different rules +for the permissions required for an unprivileged process +to send a signal to another process. +.\" In the 0.* kernels things chopped and changed quite +.\" a bit - MTK, 24 Jul 02 +In Linux 1.0 to 1.2.2, a signal could be sent if the +effective user ID of the sender matched effective user ID of the target, +or the real user ID of the sender matched the real user ID of the target. +From Linux 1.2.3 until 1.3.77, a signal could be sent if the +effective user ID of the sender matched either the real or effective +user ID of the target. +The current rules, which conform to POSIX.1, were adopted +in Linux 1.3.78. .SH NOTES The only signals that can be sent to process ID 1, the .I init @@ -125,20 +141,6 @@ at least one unblocked signal must be delivered to the sending thread before the .BR kill () returns. -.SS Linux notes -Across different kernel versions, Linux has enforced different rules -for the permissions required for an unprivileged process -to send a signal to another process. -.\" In the 0.* kernels things chopped and changed quite -.\" a bit - MTK, 24 Jul 02 -In Linux 1.0 to 1.2.2, a signal could be sent if the -effective user ID of the sender matched effective user ID of the target, -or the real user ID of the sender matched the real user ID of the target. -From Linux 1.2.3 until 1.3.77, a signal could be sent if the -effective user ID of the sender matched either the real or effective -user ID of the target. -The current rules, which conform to POSIX.1, were adopted -in Linux 1.3.78. .SH BUGS In Linux 2.6 up to and including Linux 2.6.7, there was a bug that meant that when sending signals to a process group, |