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Diffstat (limited to 'gl/getaddrinfo.c')
-rw-r--r--gl/getaddrinfo.c174
1 files changed, 89 insertions, 85 deletions
diff --git a/gl/getaddrinfo.c b/gl/getaddrinfo.c
index f09cf9ee..6aa676c8 100644
--- a/gl/getaddrinfo.c
+++ b/gl/getaddrinfo.c
@@ -1,6 +1,5 @@
/* Get address information (partial implementation).
- Copyright (C) 1997, 2001, 2002, 2004, 2005, 2006, 2007, 2008 Free Software
- Foundation, Inc.
+ Copyright (C) 1997, 2001-2002, 2004-2010 Free Software Foundation, Inc.
Contributed by Simon Josefsson <simon@josefsson.org>.
This program is free software; you can redistribute it and/or modify
@@ -19,6 +18,10 @@
#include <config.h>
+/* Don't use __attribute__ __nonnull__ in this compilation unit. Otherwise gcc
+ optimizes away the sa == NULL test below. */
+#define _GL_ARG_NONNULL(params)
+
#include <netdb.h>
#if HAVE_NETINET_IN_H
@@ -58,12 +61,12 @@
#ifdef WIN32_NATIVE
typedef int (WSAAPI *getaddrinfo_func) (const char*, const char*,
- const struct addrinfo*,
- struct addrinfo**);
+ const struct addrinfo*,
+ struct addrinfo**);
typedef void (WSAAPI *freeaddrinfo_func) (struct addrinfo*);
typedef int (WSAAPI *getnameinfo_func) (const struct sockaddr*,
- socklen_t, char*, DWORD,
- char*, DWORD, int);
+ socklen_t, char*, DWORD,
+ char*, DWORD, int);
static getaddrinfo_func getaddrinfo_ptr = NULL;
static freeaddrinfo_func freeaddrinfo_ptr = NULL;
@@ -123,9 +126,9 @@ validate_family (int family)
socket addresses. */
int
getaddrinfo (const char *restrict nodename,
- const char *restrict servname,
- const struct addrinfo *restrict hints,
- struct addrinfo **restrict res)
+ const char *restrict servname,
+ const struct addrinfo *restrict hints,
+ struct addrinfo **restrict res)
{
struct addrinfo *tmp;
int port = 0;
@@ -165,7 +168,7 @@ getaddrinfo (const char *restrict nodename,
if (!nodename)
{
if (!(hints->ai_flags & AI_PASSIVE))
- return EAI_NONAME;
+ return EAI_NONAME;
#ifdef HAVE_IPV6
nodename = (hints->ai_family == AF_INET6) ? "::" : "0.0.0.0";
@@ -178,24 +181,24 @@ getaddrinfo (const char *restrict nodename,
{
struct servent *se = NULL;
const char *proto =
- (hints && hints->ai_socktype == SOCK_DGRAM) ? "udp" : "tcp";
+ (hints && hints->ai_socktype == SOCK_DGRAM) ? "udp" : "tcp";
if (hints == NULL || !(hints->ai_flags & AI_NUMERICSERV))
- /* FIXME: Use getservbyname_r if available. */
- se = getservbyname (servname, proto);
+ /* FIXME: Use getservbyname_r if available. */
+ se = getservbyname (servname, proto);
if (!se)
- {
- char *c;
- if (!(*servname >= '0' && *servname <= '9'))
- return EAI_NONAME;
- port = strtoul (servname, &c, 10);
- if (*c || port > 0xffff)
- return EAI_NONAME;
- port = htons (port);
- }
+ {
+ char *c;
+ if (!(*servname >= '0' && *servname <= '9'))
+ return EAI_NONAME;
+ port = strtoul (servname, &c, 10);
+ if (*c || port > 0xffff)
+ return EAI_NONAME;
+ port = htons (port);
+ }
else
- port = se->s_port;
+ port = se->s_port;
}
/* FIXME: Use gethostbyname_r if available. */
@@ -230,23 +233,23 @@ getaddrinfo (const char *restrict nodename,
#if HAVE_IPV6
case PF_INET6:
{
- struct v6_pair *p = storage;
- struct sockaddr_in6 *sinp = &p->sockaddr_in6;
- tmp = &p->addrinfo;
+ struct v6_pair *p = storage;
+ struct sockaddr_in6 *sinp = &p->sockaddr_in6;
+ tmp = &p->addrinfo;
- if (port)
- sinp->sin6_port = port;
+ if (port)
+ sinp->sin6_port = port;
- if (he->h_length != sizeof (sinp->sin6_addr))
- {
- free (storage);
- return EAI_SYSTEM; /* FIXME: Better return code? Set errno? */
- }
+ if (he->h_length != sizeof (sinp->sin6_addr))
+ {
+ free (storage);
+ return EAI_SYSTEM; /* FIXME: Better return code? Set errno? */
+ }
- memcpy (&sinp->sin6_addr, he->h_addr_list[0], sizeof sinp->sin6_addr);
+ memcpy (&sinp->sin6_addr, he->h_addr_list[0], sizeof sinp->sin6_addr);
- tmp->ai_addr = (struct sockaddr *) sinp;
- tmp->ai_addrlen = sizeof *sinp;
+ tmp->ai_addr = (struct sockaddr *) sinp;
+ tmp->ai_addrlen = sizeof *sinp;
}
break;
#endif
@@ -254,23 +257,23 @@ getaddrinfo (const char *restrict nodename,
#if HAVE_IPV4
case PF_INET:
{
- struct v4_pair *p = storage;
- struct sockaddr_in *sinp = &p->sockaddr_in;
- tmp = &p->addrinfo;
+ struct v4_pair *p = storage;
+ struct sockaddr_in *sinp = &p->sockaddr_in;
+ tmp = &p->addrinfo;
- if (port)
- sinp->sin_port = port;
+ if (port)
+ sinp->sin_port = port;
- if (he->h_length != sizeof (sinp->sin_addr))
- {
- free (storage);
- return EAI_SYSTEM; /* FIXME: Better return code? Set errno? */
- }
+ if (he->h_length != sizeof (sinp->sin_addr))
+ {
+ free (storage);
+ return EAI_SYSTEM; /* FIXME: Better return code? Set errno? */
+ }
- memcpy (&sinp->sin_addr, he->h_addr_list[0], sizeof sinp->sin_addr);
+ memcpy (&sinp->sin_addr, he->h_addr_list[0], sizeof sinp->sin_addr);
- tmp->ai_addr = (struct sockaddr *) sinp;
- tmp->ai_addrlen = sizeof *sinp;
+ tmp->ai_addr = (struct sockaddr *) sinp;
+ tmp->ai_addrlen = sizeof *sinp;
}
break;
#endif
@@ -284,16 +287,16 @@ getaddrinfo (const char *restrict nodename,
{
const char *cn;
if (he->h_name)
- cn = he->h_name;
+ cn = he->h_name;
else
- cn = nodename;
+ cn = nodename;
tmp->ai_canonname = strdup (cn);
if (!tmp->ai_canonname)
- {
- free (storage);
- return EAI_MEMORY;
- }
+ {
+ free (storage);
+ return EAI_MEMORY;
+ }
}
tmp->ai_protocol = (hints) ? hints->ai_protocol : 0;
@@ -348,15 +351,16 @@ freeaddrinfo (struct addrinfo *ai)
}
}
-int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
- char *restrict node, socklen_t nodelen,
- char *restrict service, socklen_t servicelen,
- int flags)
+int
+getnameinfo (const struct sockaddr *restrict sa, socklen_t salen,
+ char *restrict node, socklen_t nodelen,
+ char *restrict service, socklen_t servicelen,
+ int flags)
{
#ifdef WIN32_NATIVE
if (use_win32_p ())
return getnameinfo_ptr (sa, salen, node, nodelen,
- service, servicelen, flags);
+ service, servicelen, flags);
#endif
/* FIXME: Support other flags. */
@@ -373,13 +377,13 @@ int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
#if HAVE_IPV4
case AF_INET:
if (salen < sizeof (struct sockaddr_in))
- return EAI_FAMILY;
+ return EAI_FAMILY;
break;
#endif
#if HAVE_IPV6
case AF_INET6:
if (salen < sizeof (struct sockaddr_in6))
- return EAI_FAMILY;
+ return EAI_FAMILY;
break;
#endif
default:
@@ -389,28 +393,28 @@ int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
if (node && nodelen > 0 && flags & NI_NUMERICHOST)
{
switch (sa->sa_family)
- {
+ {
#if HAVE_IPV4
- case AF_INET:
- if (!inet_ntop (AF_INET,
- &(((const struct sockaddr_in *) sa)->sin_addr),
- node, nodelen))
- return EAI_SYSTEM;
- break;
+ case AF_INET:
+ if (!inet_ntop (AF_INET,
+ &(((const struct sockaddr_in *) sa)->sin_addr),
+ node, nodelen))
+ return EAI_SYSTEM;
+ break;
#endif
#if HAVE_IPV6
- case AF_INET6:
- if (!inet_ntop (AF_INET6,
- &(((const struct sockaddr_in6 *) sa)->sin6_addr),
- node, nodelen))
- return EAI_SYSTEM;
- break;
+ case AF_INET6:
+ if (!inet_ntop (AF_INET6,
+ &(((const struct sockaddr_in6 *) sa)->sin6_addr),
+ node, nodelen))
+ return EAI_SYSTEM;
+ break;
#endif
- default:
- return EAI_FAMILY;
- }
+ default:
+ return EAI_FAMILY;
+ }
}
if (service && servicelen > 0 && flags & NI_NUMERICSERV)
@@ -422,13 +426,13 @@ int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
#if HAVE_IPV6
case AF_INET6:
#endif
- {
- unsigned short int port
- = ntohs (((const struct sockaddr_in *) sa)->sin_port);
- if (servicelen <= snprintf (service, servicelen, "%u", port))
- return EAI_OVERFLOW;
- }
- break;
+ {
+ unsigned short int port
+ = ntohs (((const struct sockaddr_in *) sa)->sin_port);
+ if (servicelen <= snprintf (service, servicelen, "%u", port))
+ return EAI_OVERFLOW;
+ }
+ break;
}
return 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 04:53:37 +0000