svn commit: r366688 - head/lib/libcasper/services/cap_dns
Adrian Chadd
adrian at FreeBSD.org
Tue Oct 13 22:49:44 UTC 2020
Author: adrian
Date: Tue Oct 13 22:49:43 2020
New Revision: 366688
URL: https://svnweb.freebsd.org/changeset/base/366688
Log:
[libcasper] Update cap_dns API to not trigger unused variable warnings when disabled
When compiling without casper these API calls result in unused variable warnings.
Using #defines was lovely in the past but unfortunately it triggers warnings
which can cascade into errors.
Instead, just inline with some fallthrough functions and keep things happy.
Tested:
* gcc-6 targeting mips32, with casper disabled
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D26762
Modified:
head/lib/libcasper/services/cap_dns/cap_dns.h
Modified: head/lib/libcasper/services/cap_dns/cap_dns.h
==============================================================================
--- head/lib/libcasper/services/cap_dns/cap_dns.h Tue Oct 13 22:20:03 2020 (r366687)
+++ head/lib/libcasper/services/cap_dns/cap_dns.h Tue Oct 13 22:49:43 2020 (r366688)
@@ -39,6 +39,15 @@
#include <sys/cdefs.h>
#include <sys/socket.h> /* socklen_t */
+/*
+ * Pull these in if we're just inlining calls to the underlying
+ * libc functions.
+ */
+#ifndef WITH_CASPER
+#include <sys/types.h>
+#include <netdb.h>
+#endif /* WITH_CASPER */
+
struct addrinfo;
struct hostent;
@@ -64,17 +73,62 @@ int cap_dns_family_limit(cap_channel_t *chan, const in
__END_DECLS
#else
-#define cap_gethostbyname(chan, name) gethostbyname(name)
-#define cap_gethostbyname2(chan, name, type) gethostbyname2(name, type)
-#define cap_gethostbyaddr(chan, addr, len, type) gethostbyaddr(addr, len, type)
-#define cap_getaddrinfo(chan, hostname, servname, hints, res) \
- getaddrinfo(hostname, servname, hints, res)
-#define cap_getnameinfo(chan, sa, salen, host, hostlen, serv, servlen, flags) \
- getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
+static inline struct hostent *
+cap_gethostbyname(cap_channel_t *chan __unused, const char *name)
+{
-#define cap_dns_type_limit(chan, types, ntypes) (0)
-#define cap_dns_family_limit(chan, families, nfamilies) (0)
-#endif
+ return (gethostbyname(name));
+}
+
+static inline struct hostent *
+cap_gethostbyname2(cap_channel_t *chan __unused, const char *name, int type)
+{
+
+ return (gethostbyname2(name, type));
+}
+
+static inline struct hostent *
+cap_gethostbyaddr(cap_channel_t *chan __unused, const void *addr,
+ socklen_t len, int type)
+{
+
+ return (gethostbyaddr(addr, len, type));
+}
+
+static inline int cap_getaddrinfo(cap_channel_t *chan __unused,
+ const char *hostname, const char *servname, const struct addrinfo *hints,
+ struct addrinfo **res)
+{
+
+ return (getaddrinfo(hostname, servname, hints, res));
+}
+
+static inline int cap_getnameinfo(cap_channel_t *chan __unused,
+ const struct sockaddr *sa, socklen_t salen, char *host, size_t hostlen,
+ char *serv, size_t servlen, int flags)
+{
+
+ return (getnameinfo(sa, salen, host, hostlen, serv, servlen, flags));
+}
+
+static inline int
+cap_dns_type_limit(cap_channel_t *chan __unused,
+ const char * const *types __unused,
+ size_t ntypes __unused)
+{
+
+ return (0);
+}
+
+static inline int
+cap_dns_family_limit(cap_channel_t *chan __unused,
+ const int *families __unused,
+ size_t nfamilies __unused)
+{
+
+ return (0);
+}
+#endif /* WITH_CASPER */
#endif /* !_CAP_DNS_H_ */
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