Import sources from 2011-03-30 iso image

1 files changed, 27 insertions, 0 deletions

diff --git a/sys/src/ape/lib/ap/plan9/getpgrp.c b/sys/src/ape/lib/ap/plan9/getpgrp.c
new file mode 100755
index 000000000..310028784
--- /dev/null
+++ b/sys/src/ape/lib/ap/plan9/getpgrp.c
@@ -0,0 +1,27 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include "sys9.h"
+#include "lib.h"
+
+pid_t
+getpgrp(void)
+{
+	int n, f, pid;
+	char pgrpbuf[15], fname[30];
+
+	pid = getpid();
+	sprintf(fname, "/proc/%d/noteid", pid);
+	f = open(fname, 0);
+	n = read(f, pgrpbuf, sizeof pgrpbuf);
+	if(n < 0)
+		_syserrno();
+	else
+		n = atoi(pgrpbuf);
+	close(f);
+	return n;
+}