1 files changed, 40 insertions, 0 deletions
diff --git a/libbb/last_char_is.c b/libbb/last_char_is.c
new file mode 100644
index 0000000..4e2ee92
--- /dev/null
+++ b/libbb/last_char_is.c
@@ -0,0 +1,40 @@
+/*
+ * busybox library eXtended function
+ *
+ * Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <string.h>
+#include "libbb.h"
+
+/* Find out if the last character of a string matches the one given Don't
+ * underrun the buffer if the string length is 0.  Also avoids a possible
+ * space-hogging inline of strlen() per usage.
+ */
+char * last_char_is(const char *s, int c)
+{
+	char *sret;
+	if (!s)
+	    return NULL;
+	sret  = (char *)s+strlen(s)-1;
+	if (sret>=s && *sret == c) { 
+		return sret;
+	} else {
+		return NULL;
+	}
+}