Add getprogname() and setprogname() to ease slackers^porters' work.

Man page adapted from FreeBSD and NetBSD.

Bump libc minor now (there will be more upcoming changes).

input from tedu@
get it in deraadt@

1 files changed, 33 insertions, 0 deletions

diff --git a/lib/libc/gen/setprogname.c b/lib/libc/gen/setprogname.c
new file mode 100644
index 00000000000..c8625f0498a
--- /dev/null
+++ b/lib/libc/gen/setprogname.c
@@ -0,0 +1,33 @@
+/* $OpenBSD: setprogname.c,v 1.1 2013/05/31 20:59:24 ajacoutot Exp $ */
+/*
+ * Copyright (c) 2013 Antoine Jacoutot <ajacoutot@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+extern const char *__progname;
+
+void
+setprogname(const char *progname)
+{
+	const char *tmpn;
+
+	tmpn = strrchr(progname, '/');
+	if (tmpn == NULL)
+		__progname = progname;
+	else
+		tmpn + 1;
+}