apcups plugin: constify

diff --git a/src/apcups.c b/src/apcups.c
index 29d58c3..b4bc099 100644 (file)
--- a/src/apcups.c
+++ b/src/apcups.c
@@ -220,7 +220,7 @@ static int net_recv (int *sockfd, char *buf, int buflen)
  * Returns zero on success
  * Returns non-zero on error
  */
-static int net_send (int *sockfd, char *buff, int len)
+static int net_send (int *sockfd, const char *buff, int len)
 {
        uint16_t packet_size;
 
@@ -401,7 +401,7 @@ static int apcups_config (oconfig_item_t *ci)
        return (0);
 } /* int apcups_config */
 
-static void apc_submit_generic (char *type, char *type_inst, double value)
+static void apc_submit_generic (const char *type, const char *type_inst, double value)
 {
        value_t values[1];
        value_list_t vl = VALUE_LIST_INIT;