diff options
Diffstat (limited to 'libc/netbsd/net/getservbyport.c')
-rw-r--r-- | libc/netbsd/net/getservbyport.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libc/netbsd/net/getservbyport.c b/libc/netbsd/net/getservbyport.c new file mode 100644 index 0000000..fad7e23 --- /dev/null +++ b/libc/netbsd/net/getservbyport.c @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#include <sys/cdefs.h> +#include <netdb.h> +#include "servent.h" + +struct servent * +getservbyport(int port, const char *proto) +{ + res_static rs = __res_get_static(); + struct servent* s; + + if (rs == NULL || proto == NULL) { + errno = EINVAL; + return NULL; + } + + rs->servent_ptr = NULL; + while (1) { + struct servent* s = getservent_r(rs); + if (s == NULL) + break; + if ( s->s_port == port && !strcmp( s->s_proto, proto ) ) + return s; + } + + return NULL; +} |