NAME
getsid —
get session ID
LIBRARY
library “libc”
SYNOPSIS
#include
<unistd.h>
pid_t
getsid(pid_t
pid);
DESCRIPTION
Thegetsid()
function returns the session ID of the process specified by
pid. If pid is 0, the session ID
of the calling process is returned. The session ID is defined as the process
group ID of the process that is the session leader.
ERRORS
If an error occurs, getsid() returns -1
and the global variable errno is set to indicate the
error, as follows:
- [
ESRCH] - No process can be found corresponding to that specified by pid.
SEE ALSO
STANDARDS
The getsid() function conforms to
X/Open Portability Guide Issue 4, Version 2
(“XPG4.2”).