service: constify function arguments

[project/mdnsd.git] / dns.h

diff --git a/dns.h b/dns.h
index b29e297..c52d842 100644 (file)
--- a/dns.h
+++ b/dns.h
@@ -64,15 +64,13 @@ struct dns_question {
        uint16_t class;
 } __attribute__((packed, aligned(2)));
 
-extern char *rdata_buffer;
+extern char rdata_buffer[MAX_DATA_LEN + 1];
 
-extern int dns_init(void);
-extern void dns_cleanup(void);
-extern void dns_send_question(struct uloop_fd *u, char *question, int type);
+extern void dns_send_question(struct uloop_fd *u, const char *question, int type);
 extern void dns_init_answer(void);
-extern void dns_add_answer(int type, uint8_t *rdata, uint16_t rdlength);
-extern void dns_send_answer(struct uloop_fd *u, char *answer);
-extern char* dns_consume_name(uint8_t *base, int blen, uint8_t **data, int *len);
+extern void dns_add_answer(int type, const uint8_t *rdata, uint16_t rdlength);
+extern void dns_send_answer(struct uloop_fd *u, const char *answer);
+extern char* dns_consume_name(const uint8_t *base, int blen, uint8_t **data, int *len);
 extern struct dns_answer* dns_consume_answer(uint8_t **data, int *len);
 extern struct dns_question* dns_consume_question(uint8_t **data, int *len);
 extern struct dns_header* dns_consume_header(uint8_t **data, int *len);