freetdm: fix license path to use sngss7 path limits

         do not use strcpy, use ftdm_set_string which is safer
         do not use strcpy when snprintf is safer and cleaner

libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_main.h

@@ -51,7 +51,6 @@
 
 /* DEFINES ********************************************************************/
 #define MAX_NAME_LEN			25
-#define MAX_PATH				4096
 
 #define MAX_CIC_LENGTH			5
 #define MAX_CIC_MAP_LENGTH		1000 
@@ -411,8 +410,8 @@ typedef struct sng_relay {
 typedef struct sng_ss7_cfg {
 	uint32_t			spc;
 	uint32_t			procId;
-	char				license[MAX_PATH];
-	char				signature[MAX_PATH];
+	char				license[MAX_SNGSS7_PATH];
+	char				signature[MAX_SNGSS7_PATH];
 	uint32_t			transparent_iam_max_size;
 	uint32_t			flags;
 	sng_relay_t			relay[MAX_RELAY_CHANNELS+1];

libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_xml.c

@@ -472,9 +472,8 @@ static int ftmod_ss7_parse_sng_gen(ftdm_conf_node_t *sng_gen)
 		/**********************************************************************/
 		} else if (!strcasecmp(parm->var, "license")) {
 		/**********************************************************************/
-			strcpy(g_ftdm_sngss7_data.cfg.license, parm->val);
-			strcpy(g_ftdm_sngss7_data.cfg.signature, parm->val);
-			strcat(g_ftdm_sngss7_data.cfg.signature, ".sig");
+			ftdm_set_string(g_ftdm_sngss7_data.cfg.license, parm->val);
+			snprintf(g_ftdm_sngss7_data.cfg.signature, sizeof(g_ftdm_sngss7_data.cfg.signature), "%s.sig", parm->val);
 			SS7_DEBUG("Found license file = %s\n", g_ftdm_sngss7_data.cfg.license);
 			SS7_DEBUG("Found signature file = %s\n", g_ftdm_sngss7_data.cfg.signature);	
 		/**********************************************************************/