Do not use __progname directly (except in [gs]etprogname(3)).

Also, make an internal _getprogname() that is used only inside
libc. For libc, getprogname(3) is a weak symbol in case a
function of the same name is defined in userland.

1 files changed, 6 insertions, 2 deletions

diff --git a/lib/libc/gen/getprogname.c b/lib/libc/gen/getprogname.c
index b0a8dec..fd51d13 100644
--- a/lib/libc/gen/getprogname.c
+++ b/lib/libc/gen/getprogname.c
@@ -1,12 +1,16 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
+#include "namespace.h"
 #include <stdlib.h>
+#include "un-namespace.h"
 
-extern const char *__progname;
+#include "libc_private.h"
+
+__weak_reference(_getprogname, getprogname);
 
 const char *
-getprogname(void)
+_getprogname(void)
 {
 
 	return (__progname);