From e5888a1ffdae813d7575f5fb02275c6bb07e5199 Mon Sep 17 00:00:00 2001 From: Taru Karttunen Date: Wed, 30 Mar 2011 15:46:40 +0300 Subject: Import sources from 2011-03-30 iso image --- sys/src/ape/lib/ap/plan9/setpgid.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100755 sys/src/ape/lib/ap/plan9/setpgid.c (limited to 'sys/src/ape/lib/ap/plan9/setpgid.c') diff --git a/sys/src/ape/lib/ap/plan9/setpgid.c b/sys/src/ape/lib/ap/plan9/setpgid.c new file mode 100755 index 000000000..dd5445085 --- /dev/null +++ b/sys/src/ape/lib/ap/plan9/setpgid.c @@ -0,0 +1,31 @@ +#include "lib.h" +#include +#include +#include +#include "sys9.h" + +int +setpgid(pid_t pid, pid_t pgid) +{ + int n, f; + char buf[50], fname[30]; + + if(pid == 0) + pid = getpid(); + if(pgid == 0) + pgid = getpgrp(); + sprintf(fname, "/proc/%d/noteid", pid); + f = open(fname, 1); + if(f < 0) { + errno = ESRCH; + return -1; + } + n = sprintf(buf, "%d", pgid); + n = write(f, buf, n); + if(n < 0) + _syserrno(); + else + n = 0; + close(f); + return n; +} -- cgit v1.2.3