From d0e0051c36c8eca2c7ad440a853da2c6e40bd45c Mon Sep 17 00:00:00 2001 From: Kevin Lo Date: Wed, 26 Sep 2012 09:29:48 +0000 Subject: Teach getent(1) to look up a hostname and find IPv6 addresses. PR: bin/161548 Submitted by: matthew --- getent.c | 34 ++++++++++++++++++++++------------ 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/getent.c b/getent.c index 85857d8..7424577 100644 --- a/getent.c +++ b/getent.c @@ -277,7 +277,7 @@ hostsprint(const struct hostent *he) static int hosts(int argc, char *argv[]) { - struct hostent *he; + struct hostent *he4, *he6; char addr[IN6ADDRSZ]; int i, rv; @@ -285,21 +285,31 @@ hosts(int argc, char *argv[]) assert(argv != NULL); sethostent(1); + he4 = he6 = NULL; rv = RV_OK; if (argc == 2) { - while ((he = gethostent()) != NULL) - hostsprint(he); + while ((he4 = gethostent()) != NULL) + hostsprint(he4); } else { for (i = 2; i < argc; i++) { - if (inet_pton(AF_INET6, argv[i], (void *)addr) > 0) - he = gethostbyaddr(addr, IN6ADDRSZ, AF_INET6); - else if (inet_pton(AF_INET, argv[i], (void *)addr) > 0) - he = gethostbyaddr(addr, INADDRSZ, AF_INET); - else - he = gethostbyname(argv[i]); - if (he != NULL) - hostsprint(he); - else { + if (inet_pton(AF_INET6, argv[i], (void *)addr) > 0) { + he6 = gethostbyaddr(addr, IN6ADDRSZ, AF_INET6); + if (he6 != NULL) + hostsprint(he6); + } else if (inet_pton(AF_INET, argv[i], + (void *)addr) > 0) { + he4 = gethostbyaddr(addr, INADDRSZ, AF_INET); + if (he4 != NULL) + hostsprint(he4); + } else { + he6 = gethostbyname2(argv[i], AF_INET6); + if (he6 != NULL) + hostsprint(he6); + he4 = gethostbyname(argv[i]); + if (he4 != NULL) + hostsprint(he4); + } + if ( he4 == NULL && he6 == NULL ) { rv = RV_NOTFOUND; break; } -- cgit v1.2.3-56-ge451