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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-13 10:37:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-13 10:37:30 -0700 |
| commit | 2897c684d1d5140e0e0302e73660c7cb97981b27 (patch) | |
| tree | 8132776c20aeaa8ec6703ea782afd44ffc76e3ce /fs/nfs/dns_resolve.c | |
| parent | c029b55af7d6b02b993e8a5add78d062da7a3940 (diff) | |
| parent | 3f43231230664c23f4a7513232171dcb6ce9f068 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
[NFS] Set CONFIG_KEYS when CONFIG_NFS_USE_KERNEL_DNS is set
AFS: Implement an autocell mount capability [ver #2]
DNS: If the DNS server returns an error, allow that to be cached [ver #2]
NFS: Use kernel DNS resolver [ver #2]
cifs: update README to include details about 'fsc' option
Diffstat (limited to 'fs/nfs/dns_resolve.c')
| -rw-r--r-- | fs/nfs/dns_resolve.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c index 76fd235d002..dba50a5625d 100644 --- a/fs/nfs/dns_resolve.c +++ b/fs/nfs/dns_resolve.c @@ -6,6 +6,29 @@ * Resolves DNS hostnames into valid ip addresses */ +#ifdef CONFIG_NFS_USE_KERNEL_DNS + +#include <linux/sunrpc/clnt.h> +#include <linux/dns_resolver.h> + +ssize_t nfs_dns_resolve_name(char *name, size_t namelen, + struct sockaddr *sa, size_t salen) +{ + ssize_t ret; + char *ip_addr = NULL; + int ip_len; + + ip_len = dns_query(NULL, name, namelen, NULL, &ip_addr, NULL); + if (ip_len > 0) + ret = rpc_pton(ip_addr, ip_len, sa, salen); + else + ret = -ESRCH; + kfree(ip_addr); + return ret; +} + +#else + #include <linux/hash.h> #include <linux/string.h> #include <linux/kmod.h> @@ -346,3 +369,4 @@ void nfs_dns_resolver_destroy(void) nfs_cache_unregister(&nfs_dns_resolve); } +#endif |