Three of the rtnl methods never modify the strings passed in. This
patch adds the const keyword to ensure these functions stay that way.
Signed-off-by: Richard Cochran <richardcoch...@gmail.com>
---
rtnl.c | 6 +++---
rtnl.h | 6 +++---
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/rtnl.c b/rtnl.c
index 59ed0ec..d9c76d7 100644
--- a/rtnl.c
+++ b/rtnl.c
@@ -87,7 +87,7 @@ static void rtnl_get_ts_device_callback(void *ctx, int
linkup, int ts_index)
*dst = ts_index;
}
-int rtnl_get_ts_device(char *device, char *ts_device)
+int rtnl_get_ts_device(const char *device, char *ts_device)
{
int err, fd;
int ts_index = -1;
@@ -112,7 +112,7 @@ no_info:
return err;
}
-int rtnl_link_query(int fd, char *device)
+int rtnl_link_query(int fd, const char *device)
{
struct sockaddr_nl sa;
struct msghdr msg;
@@ -227,7 +227,7 @@ static int rtnl_linkinfo_parse(int master_index, struct
rtattr *rta)
return index;
}
-int rtnl_link_status(int fd, char *device, rtnl_callback cb, void *ctx)
+int rtnl_link_status(int fd, const char *device, rtnl_callback cb, void *ctx)
{
struct rtattr *tb[IFLA_MAX+1];
struct ifinfomsg *info = NULL;
diff --git a/rtnl.h b/rtnl.h
index f877cd2..c5ea979 100644
--- a/rtnl.h
+++ b/rtnl.h
@@ -37,7 +37,7 @@ int rtnl_close(int fd);
* at least IF_NAMESIZE bytes long.
* @return Zero on success, or -1 on error.
*/
-int rtnl_get_ts_device(char *device, char *ts_device);
+int rtnl_get_ts_device(const char *device, char *ts_device);
/**
* Request the link status from the kernel.
@@ -45,7 +45,7 @@ int rtnl_get_ts_device(char *device, char *ts_device);
* @param device Interface name. Request all iface's status if set NULL.
* @return Zero on success, non-zero otherwise.
*/
-int rtnl_link_query(int fd, char *device);
+int rtnl_link_query(int fd, const char *device);
/**
* Read kernel messages looking for a link up/down events.
@@ -55,7 +55,7 @@ int rtnl_link_query(int fd, char *device);
* @param ctx Private context passed to the callback.
* @return Zero on success, non-zero otherwise.
*/
-int rtnl_link_status(int fd, char *device, rtnl_callback cb, void *ctx);
+int rtnl_link_status(int fd, const char *device, rtnl_callback cb, void *ctx);
/**
* Open a RT netlink socket for monitoring link state.
--
2.20.1
_______________________________________________
Linuxptp-devel mailing list
Linuxptp-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
