diff options
Diffstat (limited to 'sysdeps/posix/getaddrinfo.c')
| -rw-r--r-- | sysdeps/posix/getaddrinfo.c | 75 |
1 files changed, 57 insertions, 18 deletions
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c index 4bb80c8..be36c6a 100644 --- a/sysdeps/posix/getaddrinfo.c +++ b/sysdeps/posix/getaddrinfo.c @@ -42,20 +42,19 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. /* This software is Copyright 1996 by Craig Metz, All Rights Reserved. */ -/* getaddrinfo() v1.13 */ - -#include <sys/types.h> +#include <assert.h> +#include <errno.h> +#include <netdb.h> +#include <stdio.h> #include <stdlib.h> +#include <string.h> #include <unistd.h> +#include <arpa/inet.h> #include <sys/socket.h> -#include <stdio.h> -#include <string.h> -#include <sys/utsname.h> -#include <sys/un.h> #include <netinet/in.h> -#include <netdb.h> -#include <errno.h> -#include <arpa/inet.h> +#include <sys/types.h> +#include <sys/un.h> +#include <sys/utsname.h> #define GAIH_OKIFUNSPEC 0x0100 #define GAIH_EAI ~(GAIH_OKIFUNSPEC) @@ -85,6 +84,7 @@ struct gaih_addrtuple struct gaih_addrtuple *next; int family; char addr[16]; + uint32_t scopeid; }; struct gaih_typeproto @@ -370,6 +370,7 @@ gaih_inet (const char *name, const struct gaih_service *service, at = __alloca (sizeof (struct gaih_addrtuple)); at->family = AF_UNSPEC; + at->scopeid = 0; at->next = NULL; if (inet_pton (AF_INET, name, at->addr) > 0) @@ -380,12 +381,48 @@ gaih_inet (const char *name, const struct gaih_service *service, return -EAI_ADDRFAMILY; } - if (at->family == AF_UNSPEC && inet_pton (AF_INET6, name, at->addr) > 0) + if (at->family == AF_UNSPEC) { - if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET6) - at->family = AF_INET6; - else - return -EAI_ADDRFAMILY; + char *namebuf = strdupa (name); + char *scope_delim; + + scope_delim = strchr (namebuf, SCOPE_DELIMITER); + if (scope_delim != NULL) + *scope_delim = '\0'; + + if (inet_pton (AF_INET6, namebuf, at->addr) > 0) + { + int try_numericscope = 0; + + if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET6) + at->family = AF_INET6; + else + return -EAI_ADDRFAMILY; + + if (scope_delim != NULL) + { + int try_numericscope = 0; + if (IN6_IS_ADDR_LINKLOCAL (at->addr) + || IN6_IS_ADDR_MC_LINKLOCAL (at->addr)) + { + at->scopeid = if_nametoindex (scope_delim + 1); + if (at->scopeid == 0) + try_numericscope = 1; + } + else + try_numericscope = 1; + + if (try_numericscope != 0) + { + char *end; + assert (sizeof (uint32_t) <= sizeof (unsigned long)); + at->scopeid = (uint32_t) strtoul (scope_delim + 1, &end, + 10); + if (*end != '\0') + return GAIH_OKIFUNSPEC | -EAI_NONAME; + } + } + } } if (at->family == AF_UNSPEC && (req->ai_flags & AI_NUMERICHOST) == 0) @@ -519,10 +556,9 @@ gaih_inet (const char *name, const struct gaih_service *service, (*pai)->ai_addrlen = socklen; (*pai)->ai_addr = (void *) (*pai) + sizeof(struct addrinfo); #if SALEN - ((struct sockaddr_in *) (*pai)->ai_addr)->sin_len = i; + (*pai)->ai_addr->sa_len = socklen; #endif /* SALEN */ - ((struct sockaddr_in *) (*pai)->ai_addr)->sin_family = at2->family; - ((struct sockaddr_in *) (*pai)->ai_addr)->sin_port = st2->port; + (*pai)->ai_addr->sa_family = at2->family; if (at2->family == AF_INET6) { @@ -532,6 +568,8 @@ gaih_inet (const char *name, const struct gaih_service *service, sin6p->sin6_flowinfo = 0; memcpy (&sin6p->sin6_addr, at2->addr, sizeof (struct in6_addr)); + sin6p->sin6_port = st2->port; + sin6p->sin6_scope_id = at2->scopeid; } else { @@ -539,6 +577,7 @@ gaih_inet (const char *name, const struct gaih_service *service, (struct sockaddr_in *) (*pai)->ai_addr; memcpy (&sinp->sin_addr, at2->addr, sizeof (struct in_addr)); + sinp->sin_port = st2->port; memset (sinp->sin_zero, '\0', sizeof (sinp->sin_zero)); } |