From 65dc273d7816a0a38064e4a6294ef40b32f4dcc7 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Fri, 29 Apr 2005 13:26:31 +0000 Subject: [PATCH] First version --- src/core/resolv.c | 25 +++++++++++++++++++++++++ src/include/resolv.h | 15 +++++++++++++++ 2 files changed, 40 insertions(+) create mode 100644 src/core/resolv.c create mode 100644 src/include/resolv.h diff --git a/src/core/resolv.c b/src/core/resolv.c new file mode 100644 index 00000000..24483b83 --- /dev/null +++ b/src/core/resolv.c @@ -0,0 +1,25 @@ +#include "resolv.h" + +static struct resolver resolvers[0] __table_start(resolver); +static struct resolver resolvers_end[0] __table_end(resolver); + +/* + * Resolve a name (which may be just a dotted quad IP address) to an + * IP address. + * + */ +int resolv ( struct in_addr *address, const char *name ) { + struct resolver *resolver; + + /* Check for a dotted quad IP address first */ + if ( inet_aton ( name, address ) ) + return 1; + + /* Try any compiled-in name resolution modules */ + for ( resolver = resolvers ; resolver < resolvers_end ; resolver++ ) { + if ( resolver->resolv ( address, name ) ) + return 1; + } + + return 0; +} diff --git a/src/include/resolv.h b/src/include/resolv.h new file mode 100644 index 00000000..99e3b297 --- /dev/null +++ b/src/include/resolv.h @@ -0,0 +1,15 @@ +#ifndef RESOLV_H +#define RESOLV_H + +#include "in.h" +#include "tables.h" + +struct resolver { + int ( * resolv ) ( struct in_addr *address, const char *name ); +}; + +#define __resolver __table(resolver,01) + +extern int resolv ( struct in_addr *address, const char *name ); + +#endif /* RESOLV_H */