2 files changed, 25 insertions, 0 deletions
diff --git a/src/commonlib/bsd/include/commonlib/bsd/string.h b/src/commonlib/bsd/include/commonlib/bsd/string.h
index 8e8b896e7e..5c97c65cae 100644
--- a/src/commonlib/bsd/include/commonlib/bsd/string.h
+++ b/src/commonlib/bsd/include/commonlib/bsd/string.h
@@ -8,6 +8,8 @@
 
 size_t strlen(const char *src);
 size_t strnlen(const char *str, size_t maxlen);
+char *strcat(char *dst, const char *src);
+char *strncat(char *dst, const char *src, size_t n);
 
 unsigned int skip_atoi(char **ptr);
 
diff --git a/src/commonlib/bsd/string.c b/src/commonlib/bsd/string.c
index a9dce39e8d..16cd4b5e1d 100644
--- a/src/commonlib/bsd/string.c
+++ b/src/commonlib/bsd/string.c
@@ -23,6 +23,29 @@ size_t strnlen(const char *str, size_t maxlen)
 	return ptr - str - 1;
 }
 
+char *strcat(char *dst, const char *src)
+{
+	char *ptr = dst + strlen(dst);
+
+	while (*src)
+		*ptr++ = *src++;
+
+	*ptr = '\0';
+	return dst;
+}
+
+char *strncat(char *dst, const char *src, size_t n)
+{
+	char *ptr = dst + strlen(dst);
+
+	/* Not using strncpy() because '\0' may not be appended. */
+	while (n-- > 0 && *src)
+		*ptr++ = *src++;
+
+	*ptr = '\0';
+	return dst;
+}
+
 unsigned int skip_atoi(char **ptr)
 {
 	unsigned int result = 0;