From d2d9e83bd9bdc3a091d6b9f1ccaec012fba2f0f4 Mon Sep 17 00:00:00 2001 From: José Bollo Date: Fri, 19 Jan 2018 14:58:27 +0100 Subject: Initial commit of nss-localuser MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit `nss-localuser` is a plugin for the GNU Name Service Switch (NSS) functionality of the GNU C Library (`glibc`) providing host name resolution for *"localuser"* family of virtual hostnames. The delivered NSS service defines one virtual host of name `localuser` that resolves to an IP address of the localhost loopback that integrates user ID. Change-Id: I2a33dc23518ce3f4581f5c37df9476dbbc58f262 Signed-off-by: José Bollo --- test-localuser.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 test-localuser.c (limited to 'test-localuser.c') diff --git a/test-localuser.c b/test-localuser.c new file mode 100644 index 0000000..ed27138 --- /dev/null +++ b/test-localuser.c @@ -0,0 +1,57 @@ +/* + * Copyright 2018 IoT.bzh + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#include +#include + +void dumphostent(char *tag, char *arg, struct hostent *h) +{ + printf("\n----------------- %s %s\n", tag, arg); + if (h) { + printf("name: %s\n", h->h_name); + if (h->h_addrtype == AF_INET) + printf("ipv4: %d.%d.%d.%d\n", + (int)(unsigned char)h->h_addr_list[0][0], + (int)(unsigned char)h->h_addr_list[0][1], + (int)(unsigned char)h->h_addr_list[0][2], + (int)(unsigned char)h->h_addr_list[0][3]); + } else { + printf("NULL!\n"); + } + printf("\n"); +} + +int main(int ac, char **av) +{ + struct hostent *h; + + while (*++av) { + h = gethostbyname2(*av, AF_INET); + dumphostent("name->addr", *av, h); + + if (h) { + h = gethostbyaddr(h->h_addr_list[0], h->h_length, h->h_addrtype); + dumphostent("addr->name", *av, h); + } + } + return 0; +} + -- cgit 1.2.3-korg