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Diffstat (limited to 'ext/socket/getnameinfo.c')
-rw-r--r--ext/socket/getnameinfo.c280
1 files changed, 125 insertions, 155 deletions
diff --git a/ext/socket/getnameinfo.c b/ext/socket/getnameinfo.c
index 66f7e8818a..98da8c1647 100644
--- a/ext/socket/getnameinfo.c
+++ b/ext/socket/getnameinfo.c
@@ -1,7 +1,7 @@
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE 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:
@@ -13,7 +13,7 @@
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE PROJECT 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
@@ -34,15 +34,14 @@
* but INRIA implementation returns EAI_xxx defined for getaddrinfo().
*/
-#include "config.h"
+#include "ruby/config.h"
+#ifdef RUBY_EXTCONF_H
+#include RUBY_EXTCONF_H
+#endif
#include <stdio.h>
#include <sys/types.h>
#ifndef _WIN32
-#if defined(__BEOS__)
-# include <net/socket.h>
-#else
-# include <sys/socket.h>
-#endif
+#include <sys/socket.h>
#include <netinet/in.h>
#if defined(HAVE_ARPA_INET_H)
#include <arpa/inet.h>
@@ -57,6 +56,7 @@
#endif
#ifdef _WIN32
#include <winsock2.h>
+#include <ws2tcpip.h>
#define snprintf _snprintf
#endif
@@ -67,8 +67,13 @@
#include <socks.h>
#endif
+#ifndef HAVE_TYPE_SOCKLEN_T
+typedef int socklen_t;
+#endif
+
#include "addrinfo.h"
#include "sockport.h"
+#include "rubysocket.h"
#define SUCCESS 0
#define ANY 0
@@ -76,30 +81,30 @@
#define NO 0
struct sockinet {
- u_char si_len;
- u_char si_family;
- u_short si_port;
+ u_char si_len;
+ u_char si_family;
+ u_short si_port;
};
static struct afd {
- int a_af;
- int a_addrlen;
- int a_socklen;
- int a_off;
+ int a_af;
+ int a_addrlen;
+ int a_socklen;
+ int a_off;
} afdl [] = {
#ifdef INET6
#define N_INET6 0
- {PF_INET6, sizeof(struct in6_addr),
- sizeof(struct sockaddr_in6),
- offsetof(struct sockaddr_in6, sin6_addr)},
+ {PF_INET6, sizeof(struct in6_addr),
+ sizeof(struct sockaddr_in6),
+ offsetof(struct sockaddr_in6, sin6_addr)},
#define N_INET 1
#else
#define N_INET 0
#endif
- {PF_INET, sizeof(struct in_addr),
- sizeof(struct sockaddr_in),
- offsetof(struct sockaddr_in, sin_addr)},
- {0, 0, 0, 0},
+ {PF_INET, sizeof(struct in_addr),
+ sizeof(struct sockaddr_in),
+ offsetof(struct sockaddr_in, sin_addr)},
+ {0, 0, 0, 0},
};
#define ENI_NOSOCKET 0
@@ -110,156 +115,121 @@ static struct afd {
#define ENI_FAMILY 5
#define ENI_SALEN 6
-#ifndef HAVE_INET_NTOP
-static const char *
-inet_ntop(af, addr, numaddr, numaddr_len)
- int af;
- const void *addr;
- char *numaddr;
- size_t numaddr_len;
-{
-#ifdef HAVE_INET_NTOA
- struct in_addr in;
- memcpy(&in.s_addr, addr, sizeof(in.s_addr));
- snprintf(numaddr, numaddr_len, "%s", inet_ntoa(in));
-#else
- unsigned long x = ntohl(*(unsigned long*)addr);
- snprintf(numaddr, numaddr_len, "%d.%d.%d.%d",
- (int) (x>>24) & 0xff, (int) (x>>16) & 0xff,
- (int) (x>> 8) & 0xff, (int) (x>> 0) & 0xff);
-#endif
- return numaddr;
-}
-#endif
-
int
-getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
- const struct sockaddr *sa;
- size_t salen;
- char *host;
- size_t hostlen;
- char *serv;
- size_t servlen;
- int flags;
+getnameinfo(const struct sockaddr *sa, socklen_t salen, char *host, socklen_t hostlen, char *serv, socklen_t servlen, int flags)
{
- struct afd *afd;
- struct servent *sp;
- struct hostent *hp;
- u_short port;
- int family, len, i;
- char *addr, *p;
- u_long v4a;
+ struct afd *afd;
+ struct hostent *hp;
+ u_short port;
+ int family, len, i;
+ char *addr, *p;
+ u_long v4a;
#ifdef INET6
- u_char pfx;
+ u_char pfx;
#endif
- int h_error;
- char numserv[512];
- char numaddr[512];
+ int h_error;
+ char numserv[512];
+ char numaddr[512];
- if (sa == NULL)
- return ENI_NOSOCKET;
+ if (sa == NULL)
+ return ENI_NOSOCKET;
- len = SA_LEN(sa);
- if (len != salen) return ENI_SALEN;
-
- family = sa->sa_family;
- for (i = 0; afdl[i].a_af; i++)
- if (afdl[i].a_af == family) {
- afd = &afdl[i];
- goto found;
- }
- return ENI_FAMILY;
-
- found:
- if (len != afd->a_socklen) return ENI_SALEN;
-
- port = ((struct sockinet *)sa)->si_port; /* network byte order */
- addr = (char *)sa + afd->a_off;
+ if (!VALIDATE_SOCKLEN(sa, salen)) return ENI_SALEN;
+ len = salen;
+
+ family = sa->sa_family;
+ for (i = 0; afdl[i].a_af; i++)
+ if (afdl[i].a_af == family) {
+ afd = &afdl[i];
+ goto found;
+ }
+ return ENI_FAMILY;
- if (serv == NULL || servlen == 0) {
- /* what we should do? */
- } else if (flags & NI_NUMERICSERV) {
- snprintf(numserv, sizeof(numserv), "%d", ntohs(port));
- if (strlen(numserv) + 1 > servlen)
- return ENI_MEMORY;
- strcpy(serv, numserv);
- } else {
+ found:
+ if (len != afd->a_socklen) return ENI_SALEN;
+
+ port = ((struct sockinet *)sa)->si_port; /* network byte order */
+ addr = (char *)sa + afd->a_off;
+
+ if (serv == NULL || servlen == 0) {
+ /* what we should do? */
+ } else if (flags & NI_NUMERICSERV) {
+ snprintf(numserv, sizeof(numserv), "%d", ntohs(port));
+ if (strlcpy(serv, numserv, servlen) >= servlen)
+ return ENI_MEMORY;
+ } else {
#if defined(HAVE_GETSERVBYPORT)
- sp = getservbyport(port, (flags & NI_DGRAM) ? "udp" : "tcp");
- if (sp) {
- if (strlen(sp->s_name) + 1 > servlen)
- return ENI_MEMORY;
- strcpy(serv, sp->s_name);
- } else
- return ENI_NOSERVNAME;
+ struct servent *sp = getservbyport(port, (flags & NI_DGRAM) ? "udp" : "tcp");
+ if (sp) {
+ if (strlcpy(serv, sp->s_name, servlen) >= servlen)
+ return ENI_MEMORY;
+ } else
+ return ENI_NOSERVNAME;
#else
- return ENI_NOSERVNAME;
-#endif
- }
-
- switch (sa->sa_family) {
- case AF_INET:
- v4a = ntohl(((struct sockaddr_in *)sa)->sin_addr.s_addr);
- if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
- flags |= NI_NUMERICHOST;
- v4a >>= IN_CLASSA_NSHIFT;
- if (v4a == 0)
- flags |= NI_NUMERICHOST;
- break;
+ return ENI_NOSERVNAME;
+#endif
+ }
+
+ switch (sa->sa_family) {
+ case AF_INET:
+ v4a = ntohl(((struct sockaddr_in *)sa)->sin_addr.s_addr);
+ if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
+ flags |= NI_NUMERICHOST;
+ v4a >>= IN_CLASSA_NSHIFT;
+ if (v4a == 0)
+ flags |= NI_NUMERICHOST;
+ break;
#ifdef INET6
- case AF_INET6:
+ case AF_INET6:
#ifdef HAVE_ADDR8
- pfx = ((struct sockaddr_in6 *)sa)->sin6_addr.s6_addr8[0];
+ pfx = ((struct sockaddr_in6 *)sa)->sin6_addr.s6_addr8[0];
#else
- pfx = ((struct sockaddr_in6 *)sa)->sin6_addr.s6_addr[0];
-#endif
- if (pfx == 0 || pfx == 0xfe || pfx == 0xff)
- flags |= NI_NUMERICHOST;
- break;
-#endif
- }
- if (host == NULL || hostlen == 0) {
- /* what should we do? */
- } else if (flags & NI_NUMERICHOST) {
- if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
- == NULL)
- return ENI_SYSTEM;
- if (strlen(numaddr) > hostlen)
- return ENI_MEMORY;
- strcpy(host, numaddr);
- } else {
+ pfx = ((struct sockaddr_in6 *)sa)->sin6_addr.s6_addr[0];
+#endif
+ if (pfx == 0 || pfx == 0xfe || pfx == 0xff)
+ flags |= NI_NUMERICHOST;
+ break;
+#endif
+ }
+ if (host == NULL || hostlen == 0) {
+ /* what should we do? */
+ } else if (flags & NI_NUMERICHOST) {
+ if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
+ == NULL)
+ return ENI_SYSTEM;
+ if (strlcpy(host, numaddr, hostlen) >= hostlen)
+ return ENI_MEMORY;
+ } else {
#ifdef INET6
- hp = getipnodebyaddr(addr, afd->a_addrlen, afd->a_af, &h_error);
+ hp = getipnodebyaddr(addr, afd->a_addrlen, afd->a_af, &h_error);
#else
- hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af);
- h_error = h_errno;
+ hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af);
+ h_error = h_errno;
#endif
- if (hp) {
- if (flags & NI_NOFQDN) {
- p = strchr(hp->h_name, '.');
- if (p) *p = '\0';
- }
- if (strlen(hp->h_name) + 1 > hostlen) {
+ if (hp) {
+ if (flags & NI_NOFQDN) {
+ p = strchr(hp->h_name, '.');
+ if (p) *p = '\0';
+ }
+ if (strlcpy(host, hp->h_name, hostlen) >= hostlen) {
#ifdef INET6
- freehostent(hp);
+ freehostent(hp);
#endif
- return ENI_MEMORY;
- }
- strcpy(host, hp->h_name);
+ return ENI_MEMORY;
+ }
#ifdef INET6
- freehostent(hp);
-#endif
- } else {
- if (flags & NI_NAMEREQD)
- return ENI_NOHOSTNAME;
- if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
- == NULL)
- return ENI_NOHOSTNAME;
- if (strlen(numaddr) > hostlen)
- return ENI_MEMORY;
- strcpy(host, numaddr);
- }
- }
- return SUCCESS;
+ freehostent(hp);
+#endif
+ } else {
+ if (flags & NI_NAMEREQD)
+ return ENI_NOHOSTNAME;
+ if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
+ == NULL)
+ return ENI_NOHOSTNAME;
+ if (strlcpy(host, numaddr, hostlen) >= hostlen)
+ return ENI_MEMORY;
+ }
+ }
+ return SUCCESS;
}
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