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-rw-r--r--lib/string.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/string.c b/lib/string.c
index 1b867ac09d..a0cff8fe88 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -180,6 +180,25 @@ char * strncat(char *dest, const char *src, size_t count)
}
#endif
+#ifndef __HAVE_ARCH_STRLCAT
+/**
+ * strlcat - Append a length-limited, %NUL-terminated string to another
+ * @dest: The string to be appended to
+ * @src: The string to append to it
+ * @size: The size of @dest
+ *
+ * Compatible with *BSD: the result is always a valid NUL-terminated string that
+ * fits in the buffer (unless, of course, the buffer size is zero). It does not
+ * write past @size like strncat() does.
+ */
+size_t strlcat(char *dest, const char *src, size_t size)
+{
+ size_t len = strnlen(dest, size);
+
+ return len + strlcpy(dest + len, src, size - len);
+}
+#endif
+
#ifndef __HAVE_ARCH_STRCMP
/**
* strcmp - Compare two strings