Import sources from 2011-03-30 iso image

1 files changed, 26 insertions, 0 deletions

diff --git a/sys/src/libc/9sys/putenv.c b/sys/src/libc/9sys/putenv.c
new file mode 100755
index 000000000..de2389482
--- /dev/null
+++ b/sys/src/libc/9sys/putenv.c
@@ -0,0 +1,26 @@
+#include <u.h>
+#include <libc.h>
+
+int
+putenv(char *name, char *val)
+{
+	int f;
+	char ename[100];
+	long s;
+
+	if(strchr(name, '/') != nil)
+		return -1;
+	snprint(ename, sizeof ename, "/env/%s", name);
+	if(strcmp(ename+5, name) != 0)
+		return -1;
+	f = create(ename, OWRITE, 0664);
+	if(f < 0)
+		return -1;
+	s = strlen(val);
+	if(write(f, val, s) != s){
+		close(f);
+		return -1;
+	}
+	close(f);
+	return 0;
+}