plan9port

commit d72054aa270d6f3d539e830ef9892138a255872a
parent 49fda441d2d22ec646d02a5159e7f52ab457b314
Author: rsc <devnull@localhost>
Date:   Fri, 23 Apr 2004 03:50:19 +0000

add this

Diffstat:
M
src/lib9/mkfile
 | 
1
+
A
src/lib9/sysname.c
 | 
23
+++++++++++++++++++++++

2 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/src/lib9/mkfile b/src/lib9/mkfile
@@ -139,6 +139,7 @@ LIB9OFILES=\
 	sleep.$O\
 	strecpy.$O\
 	sysfatal.$O\
+	sysname.$O\
 	tas-$OBJTYPE.$O\
 	time.$O\
 	tokenize.$O\
diff --git a/src/lib9/sysname.c b/src/lib9/sysname.c
@@ -0,0 +1,23 @@
+#include <u.h>
+#include <libc.h>
+
+char*
+sysname(void)
+{
+	char buf[300], *p, *q;
+
+	if((q = getenv("sysname")) == nil){
+		if(gethostname(buf, sizeof buf) < 0)
+			goto err;
+		buf[sizeof buf-1] = 0;
+		q = strdup(buf);
+		if(q == nil)
+			goto err;
+	}
+	if((p = strchr(q, '.')) != nil)
+		*p = 0;
+	return q;
+
+err:
+	return "gnot";
+}