Hide *lafe_progname and provide getter/setter instead.

This factorizes some code between binaries like bsdtar, bsdcpio, and
the soon-to-be mtree.

2 files changed, 25 insertions, 2 deletions

diff --git a/libarchive_fe/err.c b/libarchive_fe/err.c
index a0173983..408c2029 100644
--- a/libarchive_fe/err.c
+++ b/libarchive_fe/err.c
@@ -44,6 +44,28 @@ static void lafe_vwarnc(int, const char *, va_list) __LA_PRINTFLIKE(2, 0);
 
 const char *lafe_progname;
 
+const char *
+lafe_getprogname(void)
+{
+
+	return lafe_progname;
+}
+
+void
+lafe_setprogname(const char *name)
+{
+	
+#if defined(_WIN32) && !defined(__CYGWIN__)
+	lafe_progname = strrchr(name, '\\');
+	if (strrchr(name, '/') > lafe_progname)
+#endif
+	lafe_progname = strrchr(name, '/');
+	if (lafe_progname != NULL)
+		lafe_progname++;
+	else
+		lafe_progname = name;
+}
+
 static void
 lafe_vwarnc(int code, const char *fmt, va_list ap)
 {
diff --git a/libarchive_fe/err.h b/libarchive_fe/err.h
index ca1af356..c351cba8 100644
--- a/libarchive_fe/err.h
+++ b/libarchive_fe/err.h
@@ -40,10 +40,11 @@
 #define	__LA_PRINTFLIKE(f,a)
 #endif
 
-extern const char *lafe_progname;
-
 void	lafe_warnc(int code, const char *fmt, ...) __LA_PRINTFLIKE(2, 3);
 void	lafe_errc(int eval, int code, const char *fmt, ...) __LA_DEAD
 		  __LA_PRINTFLIKE(3, 4);
 
+const char *	lafe_getprogname(void);
+void		lafe_setprogname(const char *);
+
 #endif