Initial import

1 files changed, 32 insertions, 0 deletions

diff --git a/util/strlcpy.c b/util/strlcpy.c
new file mode 100644
index 00000000..73416ae1
--- /dev/null
+++ b/util/strlcpy.c
@@ -0,0 +1,32 @@
+/* Copy src to string dst of size siz. At most siz-1 characters
+ * will be copied. Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+
+#include <string.h>
+
+int strlcpy(char *dst, const char *src, int siz)
+{
+	register char *d = dst;
+	register const char *s = src;
+	register int n = siz;
+
+	/* Copy as many bytes as will fit */
+	if (n != 0 && --n != 0) {
+		do {
+			if ((*d++ = *s++) == 0)
+				break;
+		} while (--n != 0);
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';		/* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);	/* count does not include NUL */
+}
+