mount.nfs: use nfs_error instead of fprintf in get_socket()

[nfs-utils.git] / utils / mount / network.c

diff --git a/utils/mount/network.c b/utils/mount/network.c
index a5b0b71435303b94068c6bc86c5427e7d9c71e64..af37ef62f06a9f26de7b9390f69aeb37428e53b1 100644 (file)
--- a/utils/mount/network.c
+++ b/utils/mount/network.c
@@ -158,6 +158,85 @@ int nfs_gethostbyname(const char *hostname, struct sockaddr_in *saddr)
        return 1;
 }
 
+/*
+ * Create a socket that is locally bound to a reserved or non-reserved
+ * port. For any failures, RPC_ANYSOCK is returned which will cause 
+ * the RPC code to create the socket instead. 
+ */
+static int get_socket(struct sockaddr_in *saddr, unsigned int p_prot,
+                       int resvp, int conn)
+{
+       int so, cc, type;
+       struct sockaddr_in laddr;
+       socklen_t namelen = sizeof(laddr);
+
+       type = (p_prot == IPPROTO_UDP ? SOCK_DGRAM : SOCK_STREAM);
+       if ((so = socket (AF_INET, type, p_prot)) < 0)
+               goto err_socket;
+
+       laddr.sin_family = AF_INET;
+       laddr.sin_port = 0;
+       laddr.sin_addr.s_addr = htonl(INADDR_ANY);
+       if (resvp) {
+               if (bindresvport(so, &laddr) < 0)
+                       goto err_bindresvport;
+       } else {
+               cc = bind(so, (struct sockaddr *)&laddr, namelen);
+               if (cc < 0)
+                       goto err_bind;
+       }
+       if (type == SOCK_STREAM || (conn && type == SOCK_DGRAM)) {
+               cc = connect(so, (struct sockaddr *)saddr, namelen);
+               if (cc < 0)
+                       goto err_connect;
+       }
+       return so;
+
+err_socket:
+       rpc_createerr.cf_stat = RPC_SYSTEMERROR;
+       rpc_createerr.cf_error.re_errno = errno;
+       if (verbose) {
+               nfs_error(_("%s: Unable to create %s socket: errno %d (%s)\n"),
+                       progname, p_prot == IPPROTO_UDP ? _("UDP") : _("TCP"),
+                       errno, strerror(errno));
+       }
+       return RPC_ANYSOCK;
+
+err_bindresvport:
+       rpc_createerr.cf_stat = RPC_SYSTEMERROR;
+       rpc_createerr.cf_error.re_errno = errno;
+       if (verbose) {
+               nfs_error(_("%s: Unable to bindresvport %s socket: errno %d"
+                               " (%s)\n"),
+                       progname, p_prot == IPPROTO_UDP ? _("UDP") : _("TCP"),
+                       errno, strerror(errno));
+       }
+       close(so);
+       return RPC_ANYSOCK;
+
+err_bind:
+       rpc_createerr.cf_stat = RPC_SYSTEMERROR;
+       rpc_createerr.cf_error.re_errno = errno;
+       if (verbose) {
+               nfs_error(_("%s: Unable to bind to %s socket: errno %d (%s)\n"),
+                       progname, p_prot == IPPROTO_UDP ? _("UDP") : _("TCP"),
+                       errno, strerror(errno));
+       }
+       close(so);
+       return RPC_ANYSOCK;
+
+err_connect:
+       rpc_createerr.cf_stat = RPC_SYSTEMERROR;
+       rpc_createerr.cf_error.re_errno = errno;
+       if (verbose) {
+               nfs_error(_("%s: Unable to connect to %s:%d, errno %d (%s)\n"),
+                       progname, inet_ntoa(saddr->sin_addr),
+                       ntohs(saddr->sin_port), errno, strerror(errno));
+       }
+       close(so);
+       return RPC_ANYSOCK;
+}
+
 /*
  * getport() is very similar to pmap_getport() with the exception that
  * this version tries to use an ephemeral port, since reserved ports are