This new function mirrors the str2mask() function for IPv4 addresses.
This commit is in preparation to support ARGT_MSK6.
---
include/common/standard.h | 6 ++++++
src/standard.c | 22 ++++++++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/include/common/standard.h b/include/common/standard.h
index dd89203ae..461044787 100644
--- a/include/common/standard.h
+++ b/include/common/standard.h
@@ -377,6 +377,12 @@ struct sockaddr_storage *str2sa_range(const char *str,
*/
int str2mask(const char *str, struct in_addr *mask);
+/* converts <str> to a struct in6_addr containing a network mask. It can be
+ * passed in quadruplet form (ffff::ffff::) or in CIDR form (64). It returns 1
+ * if the conversion succeeds otherwise zero.
+ */
+int str2mask6(const char *str, struct in6_addr *mask);
+
/* convert <cidr> to struct in_addr <mask>. It returns 1 if the conversion
* succeeds otherwise non-zero.
*/
diff --git a/src/standard.c b/src/standard.c
index 495bae571..707e2c716 100644
--- a/src/standard.c
+++ b/src/standard.c
@@ -1028,6 +1028,28 @@ int str2mask(const char *str, struct in_addr *mask)
return 1;
}
+/* converts <str> to a struct in6_addr containing a network mask. It can be
+ * passed in quadruplet form (ffff::ffff::) or in CIDR form (64). It returns 1
+ * if the conversion succeeds otherwise zero.
+ */
+int str2mask6(const char *str, struct in6_addr *mask)
+{
+ if (strchr(str, ':') != NULL) { /* quadruplet notation */
+ if (!inet_pton(AF_INET6, str, mask))
+ return 0;
+ }
+ else { /* mask length */
+ char *err;
+ unsigned long len = strtol(str, &err, 10);
+
+ if (!*str || (err && *err) || (unsigned)len > 128)
+ return 0;
+
+ len2mask6(len, mask);
+ }
+ return 1;
+}
+
/* convert <cidr> to struct in_addr <mask>. It returns 1 if the conversion
* succeeds otherwise zero.
*/
--
2.15.1
