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-rw-r--r--Modules/getaddrinfo.c884
1 files changed, 442 insertions, 442 deletions
diff --git a/Modules/getaddrinfo.c b/Modules/getaddrinfo.c
index 5bcec2b..a3ca30a 100644
--- a/Modules/getaddrinfo.c
+++ b/Modules/getaddrinfo.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
* GAI_ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -73,52 +73,52 @@ static struct in6_addr faith_prefix = IN6ADDR_GAI_ANY_INIT;
static const char in_addrany[] = { 0, 0, 0, 0 };
static const char in6_addrany[] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
-static const char in_loopback[] = { 127, 0, 0, 1 };
+static const char in_loopback[] = { 127, 0, 0, 1 };
static const char in6_loopback[] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
};
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 gai_afd {
- int a_af;
- int a_addrlen;
- int a_socklen;
- int a_off;
- const char *a_addrany;
- const char *a_loopback;
+ int a_af;
+ int a_addrlen;
+ int a_socklen;
+ int a_off;
+ const char *a_addrany;
+ const char *a_loopback;
} gai_afdl [] = {
#ifdef ENABLE_IPV6
#define N_INET6 0
- {PF_INET6, sizeof(struct in6_addr),
- sizeof(struct sockaddr_in6),
- offsetof(struct sockaddr_in6, sin6_addr),
- in6_addrany, in6_loopback},
+ {PF_INET6, sizeof(struct in6_addr),
+ sizeof(struct sockaddr_in6),
+ offsetof(struct sockaddr_in6, sin6_addr),
+ in6_addrany, in6_loopback},
#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),
- in_addrany, in_loopback},
- {0, 0, 0, 0, NULL, NULL},
+ {PF_INET, sizeof(struct in_addr),
+ sizeof(struct sockaddr_in),
+ offsetof(struct sockaddr_in, sin_addr),
+ in_addrany, in_loopback},
+ {0, 0, 0, 0, NULL, NULL},
};
#ifdef ENABLE_IPV6
-#define PTON_MAX 16
+#define PTON_MAX 16
#else
-#define PTON_MAX 4
+#define PTON_MAX 4
#endif
#ifndef IN_MULTICAST
-#define IN_MULTICAST(i) (((i) & 0xf0000000U) == 0xe0000000U)
+#define IN_MULTICAST(i) (((i) & 0xf0000000U) == 0xe0000000U)
#endif
#ifndef IN_EXPERIMENTAL
@@ -126,73 +126,73 @@ static struct gai_afd {
#endif
#ifndef IN_LOOPBACKNET
-#define IN_LOOPBACKNET 127
+#define IN_LOOPBACKNET 127
#endif
static int get_name(const char *, struct gai_afd *,
- struct addrinfo **, char *, struct addrinfo *,
- int);
+ struct addrinfo **, char *, struct addrinfo *,
+ int);
static int get_addr(const char *, int, struct addrinfo **,
- struct addrinfo *, int);
+ struct addrinfo *, int);
static int str_isnumber(const char *);
-
+
static char *ai_errlist[] = {
- "success.",
- "address family for hostname not supported.", /* EAI_ADDRFAMILY */
- "temporary failure in name resolution.", /* EAI_AGAIN */
- "invalid value for ai_flags.", /* EAI_BADFLAGS */
- "non-recoverable failure in name resolution.", /* EAI_FAIL */
- "ai_family not supported.", /* EAI_FAMILY */
- "memory allocation failure.", /* EAI_MEMORY */
- "no address associated with hostname.", /* EAI_NODATA */
- "hostname nor servname provided, or not known.",/* EAI_NONAME */
- "servname not supported for ai_socktype.", /* EAI_SERVICE */
- "ai_socktype not supported.", /* EAI_SOCKTYPE */
- "system error returned in errno.", /* EAI_SYSTEM */
- "invalid value for hints.", /* EAI_BADHINTS */
- "resolved protocol is unknown.", /* EAI_PROTOCOL */
- "unknown error.", /* EAI_MAX */
+ "success.",
+ "address family for hostname not supported.", /* EAI_ADDRFAMILY */
+ "temporary failure in name resolution.", /* EAI_AGAIN */
+ "invalid value for ai_flags.", /* EAI_BADFLAGS */
+ "non-recoverable failure in name resolution.", /* EAI_FAIL */
+ "ai_family not supported.", /* EAI_FAMILY */
+ "memory allocation failure.", /* EAI_MEMORY */
+ "no address associated with hostname.", /* EAI_NODATA */
+ "hostname nor servname provided, or not known.",/* EAI_NONAME */
+ "servname not supported for ai_socktype.", /* EAI_SERVICE */
+ "ai_socktype not supported.", /* EAI_SOCKTYPE */
+ "system error returned in errno.", /* EAI_SYSTEM */
+ "invalid value for hints.", /* EAI_BADHINTS */
+ "resolved protocol is unknown.", /* EAI_PROTOCOL */
+ "unknown error.", /* EAI_MAX */
};
#define GET_CANONNAME(ai, str) \
if (pai->ai_flags & AI_CANONNAME) {\
- if (((ai)->ai_canonname = (char *)malloc(strlen(str) + 1)) != NULL) {\
- strcpy((ai)->ai_canonname, (str));\
- } else {\
- error = EAI_MEMORY;\
- goto free;\
- }\
+ if (((ai)->ai_canonname = (char *)malloc(strlen(str) + 1)) != NULL) {\
+ strcpy((ai)->ai_canonname, (str));\
+ } else {\
+ error = EAI_MEMORY;\
+ goto free;\
+ }\
}
#ifdef HAVE_SOCKADDR_SA_LEN
#define GET_AI(ai, gai_afd, addr, port) {\
- char *p;\
- if (((ai) = (struct addrinfo *)malloc(sizeof(struct addrinfo) +\
- ((gai_afd)->a_socklen)))\
- == NULL) goto free;\
- memcpy(ai, pai, sizeof(struct addrinfo));\
- (ai)->ai_addr = (struct sockaddr *)((ai) + 1);\
- memset((ai)->ai_addr, 0, (gai_afd)->a_socklen);\
- (ai)->ai_addr->sa_len = (ai)->ai_addrlen = (gai_afd)->a_socklen;\
- (ai)->ai_addr->sa_family = (ai)->ai_family = (gai_afd)->a_af;\
- ((struct sockinet *)(ai)->ai_addr)->si_port = port;\
- p = (char *)((ai)->ai_addr);\
- memcpy(p + (gai_afd)->a_off, (addr), (gai_afd)->a_addrlen);\
+ char *p;\
+ if (((ai) = (struct addrinfo *)malloc(sizeof(struct addrinfo) +\
+ ((gai_afd)->a_socklen)))\
+ == NULL) goto free;\
+ memcpy(ai, pai, sizeof(struct addrinfo));\
+ (ai)->ai_addr = (struct sockaddr *)((ai) + 1);\
+ memset((ai)->ai_addr, 0, (gai_afd)->a_socklen);\
+ (ai)->ai_addr->sa_len = (ai)->ai_addrlen = (gai_afd)->a_socklen;\
+ (ai)->ai_addr->sa_family = (ai)->ai_family = (gai_afd)->a_af;\
+ ((struct sockinet *)(ai)->ai_addr)->si_port = port;\
+ p = (char *)((ai)->ai_addr);\
+ memcpy(p + (gai_afd)->a_off, (addr), (gai_afd)->a_addrlen);\
}
#else
#define GET_AI(ai, gai_afd, addr, port) {\
- char *p;\
- if (((ai) = (struct addrinfo *)malloc(sizeof(struct addrinfo) +\
- ((gai_afd)->a_socklen)))\
- == NULL) goto free;\
- memcpy(ai, pai, sizeof(struct addrinfo));\
- (ai)->ai_addr = (struct sockaddr *)((ai) + 1);\
- memset((ai)->ai_addr, 0, (gai_afd)->a_socklen);\
- (ai)->ai_addrlen = (gai_afd)->a_socklen;\
- (ai)->ai_addr->sa_family = (ai)->ai_family = (gai_afd)->a_af;\
- ((struct sockinet *)(ai)->ai_addr)->si_port = port;\
- p = (char *)((ai)->ai_addr);\
- memcpy(p + (gai_afd)->a_off, (addr), (gai_afd)->a_addrlen);\
+ char *p;\
+ if (((ai) = (struct addrinfo *)malloc(sizeof(struct addrinfo) +\
+ ((gai_afd)->a_socklen)))\
+ == NULL) goto free;\
+ memcpy(ai, pai, sizeof(struct addrinfo));\
+ (ai)->ai_addr = (struct sockaddr *)((ai) + 1);\
+ memset((ai)->ai_addr, 0, (gai_afd)->a_socklen);\
+ (ai)->ai_addrlen = (gai_afd)->a_socklen;\
+ (ai)->ai_addr->sa_family = (ai)->ai_family = (gai_afd)->a_af;\
+ ((struct sockinet *)(ai)->ai_addr)->si_port = port;\
+ p = (char *)((ai)->ai_addr);\
+ memcpy(p + (gai_afd)->a_off, (addr), (gai_afd)->a_addrlen);\
}
#endif
@@ -201,438 +201,438 @@ if (pai->ai_flags & AI_CANONNAME) {\
char *
gai_strerror(int ecode)
{
- if (ecode < 0 || ecode > EAI_MAX)
- ecode = EAI_MAX;
- return ai_errlist[ecode];
+ if (ecode < 0 || ecode > EAI_MAX)
+ ecode = EAI_MAX;
+ return ai_errlist[ecode];
}
void
freeaddrinfo(struct addrinfo *ai)
{
- struct addrinfo *next;
-
- do {
- next = ai->ai_next;
- if (ai->ai_canonname)
- free(ai->ai_canonname);
- /* no need to free(ai->ai_addr) */
- free(ai);
- } while ((ai = next) != NULL);
+ struct addrinfo *next;
+
+ do {
+ next = ai->ai_next;
+ if (ai->ai_canonname)
+ free(ai->ai_canonname);
+ /* no need to free(ai->ai_addr) */
+ free(ai);
+ } while ((ai = next) != NULL);
}
static int
str_isnumber(const char *p)
{
- unsigned char *q = (unsigned char *)p;
- while (*q) {
- if (! isdigit(*q))
- return NO;
- q++;
- }
- return YES;
+ unsigned char *q = (unsigned char *)p;
+ while (*q) {
+ if (! isdigit(*q))
+ return NO;
+ q++;
+ }
+ return YES;
}
int
getaddrinfo(const char*hostname, const char*servname,
const struct addrinfo *hints, struct addrinfo **res)
{
- struct addrinfo sentinel;
- struct addrinfo *top = NULL;
- struct addrinfo *cur;
- int i, error = 0;
- char pton[PTON_MAX];
- struct addrinfo ai;
- struct addrinfo *pai;
- u_short port;
+ struct addrinfo sentinel;
+ struct addrinfo *top = NULL;
+ struct addrinfo *cur;
+ int i, error = 0;
+ char pton[PTON_MAX];
+ struct addrinfo ai;
+ struct addrinfo *pai;
+ u_short port;
#ifdef FAITH
- static int firsttime = 1;
-
- if (firsttime) {
- /* translator hack */
- {
- char *q = getenv("GAI");
- if (q && inet_pton(AF_INET6, q, &faith_prefix) == 1)
- translate = YES;
- }
- firsttime = 0;
- }
+ static int firsttime = 1;
+
+ if (firsttime) {
+ /* translator hack */
+ {
+ char *q = getenv("GAI");
+ if (q && inet_pton(AF_INET6, q, &faith_prefix) == 1)
+ translate = YES;
+ }
+ firsttime = 0;
+ }
#endif
- /* initialize file static vars */
- sentinel.ai_next = NULL;
- cur = &sentinel;
- pai = &ai;
- pai->ai_flags = 0;
- pai->ai_family = PF_UNSPEC;
- pai->ai_socktype = GAI_ANY;
- pai->ai_protocol = GAI_ANY;
- pai->ai_addrlen = 0;
- pai->ai_canonname = NULL;
- pai->ai_addr = NULL;
- pai->ai_next = NULL;
- port = GAI_ANY;
-
- if (hostname == NULL && servname == NULL)
- return EAI_NONAME;
- if (hints) {
- /* error check for hints */
- if (hints->ai_addrlen || hints->ai_canonname ||
- hints->ai_addr || hints->ai_next)
- ERR(EAI_BADHINTS); /* xxx */
- if (hints->ai_flags & ~AI_MASK)
- ERR(EAI_BADFLAGS);
- switch (hints->ai_family) {
- case PF_UNSPEC:
- case PF_INET:
+ /* initialize file static vars */
+ sentinel.ai_next = NULL;
+ cur = &sentinel;
+ pai = &ai;
+ pai->ai_flags = 0;
+ pai->ai_family = PF_UNSPEC;
+ pai->ai_socktype = GAI_ANY;
+ pai->ai_protocol = GAI_ANY;
+ pai->ai_addrlen = 0;
+ pai->ai_canonname = NULL;
+ pai->ai_addr = NULL;
+ pai->ai_next = NULL;
+ port = GAI_ANY;
+
+ if (hostname == NULL && servname == NULL)
+ return EAI_NONAME;
+ if (hints) {
+ /* error check for hints */
+ if (hints->ai_addrlen || hints->ai_canonname ||
+ hints->ai_addr || hints->ai_next)
+ ERR(EAI_BADHINTS); /* xxx */
+ if (hints->ai_flags & ~AI_MASK)
+ ERR(EAI_BADFLAGS);
+ switch (hints->ai_family) {
+ case PF_UNSPEC:
+ case PF_INET:
#ifdef ENABLE_IPV6
- case PF_INET6:
+ case PF_INET6:
#endif
- break;
- default:
- ERR(EAI_FAMILY);
- }
- memcpy(pai, hints, sizeof(*pai));
- switch (pai->ai_socktype) {
- case GAI_ANY:
- switch (pai->ai_protocol) {
- case GAI_ANY:
- break;
- case IPPROTO_UDP:
- pai->ai_socktype = SOCK_DGRAM;
- break;
- case IPPROTO_TCP:
- pai->ai_socktype = SOCK_STREAM;
- break;
- default:
- pai->ai_socktype = SOCK_RAW;
- break;
- }
- break;
- case SOCK_RAW:
- break;
- case SOCK_DGRAM:
- if (pai->ai_protocol != IPPROTO_UDP &&
- pai->ai_protocol != GAI_ANY)
- ERR(EAI_BADHINTS); /*xxx*/
- pai->ai_protocol = IPPROTO_UDP;
- break;
- case SOCK_STREAM:
- if (pai->ai_protocol != IPPROTO_TCP &&
- pai->ai_protocol != GAI_ANY)
- ERR(EAI_BADHINTS); /*xxx*/
- pai->ai_protocol = IPPROTO_TCP;
- break;
- default:
- ERR(EAI_SOCKTYPE);
- /* unreachable */
- }
- }
-
- /*
- * service port
- */
- if (servname) {
- if (str_isnumber(servname)) {
- if (pai->ai_socktype == GAI_ANY) {
- /* caller accept *GAI_ANY* socktype */
- pai->ai_socktype = SOCK_DGRAM;
- pai->ai_protocol = IPPROTO_UDP;
- }
- port = htons((u_short)atoi(servname));
- } else {
- struct servent *sp;
- char *proto;
-
- proto = NULL;
- switch (pai->ai_socktype) {
- case GAI_ANY:
- proto = NULL;
- break;
- case SOCK_DGRAM:
- proto = "udp";
- break;
- case SOCK_STREAM:
- proto = "tcp";
- break;
- default:
- fprintf(stderr, "panic!\n");
- break;
- }
- if ((sp = getservbyname(servname, proto)) == NULL)
- ERR(EAI_SERVICE);
- port = sp->s_port;
- if (pai->ai_socktype == GAI_ANY) {
- if (strcmp(sp->s_proto, "udp") == 0) {
- pai->ai_socktype = SOCK_DGRAM;
- pai->ai_protocol = IPPROTO_UDP;
- } else if (strcmp(sp->s_proto, "tcp") == 0) {
- pai->ai_socktype = SOCK_STREAM;
- pai->ai_protocol = IPPROTO_TCP;
- } else
- ERR(EAI_PROTOCOL); /*xxx*/
- }
- }
- }
-
- /*
- * hostname == NULL.
- * passive socket -> anyaddr (0.0.0.0 or ::)
- * non-passive socket -> localhost (127.0.0.1 or ::1)
- */
- if (hostname == NULL) {
- struct gai_afd *gai_afd;
-
- for (gai_afd = &gai_afdl[0]; gai_afd->a_af; gai_afd++) {
- if (!(pai->ai_family == PF_UNSPEC
- || pai->ai_family == gai_afd->a_af)) {
- continue;
- }
-
- if (pai->ai_flags & AI_PASSIVE) {
- GET_AI(cur->ai_next, gai_afd, gai_afd->a_addrany, port);
- /* xxx meaningless?
- * GET_CANONNAME(cur->ai_next, "anyaddr");
- */
- } else {
- GET_AI(cur->ai_next, gai_afd, gai_afd->a_loopback,
- port);
- /* xxx meaningless?
- * GET_CANONNAME(cur->ai_next, "localhost");
- */
- }
- cur = cur->ai_next;
- }
- top = sentinel.ai_next;
- if (top)
- goto good;
- else
- ERR(EAI_FAMILY);
- }
-
- /* hostname as numeric name */
- for (i = 0; gai_afdl[i].a_af; i++) {
- if (inet_pton(gai_afdl[i].a_af, hostname, pton)) {
- u_long v4a;
+ break;
+ default:
+ ERR(EAI_FAMILY);
+ }
+ memcpy(pai, hints, sizeof(*pai));
+ switch (pai->ai_socktype) {
+ case GAI_ANY:
+ switch (pai->ai_protocol) {
+ case GAI_ANY:
+ break;
+ case IPPROTO_UDP:
+ pai->ai_socktype = SOCK_DGRAM;
+ break;
+ case IPPROTO_TCP:
+ pai->ai_socktype = SOCK_STREAM;
+ break;
+ default:
+ pai->ai_socktype = SOCK_RAW;
+ break;
+ }
+ break;
+ case SOCK_RAW:
+ break;
+ case SOCK_DGRAM:
+ if (pai->ai_protocol != IPPROTO_UDP &&
+ pai->ai_protocol != GAI_ANY)
+ ERR(EAI_BADHINTS); /*xxx*/
+ pai->ai_protocol = IPPROTO_UDP;
+ break;
+ case SOCK_STREAM:
+ if (pai->ai_protocol != IPPROTO_TCP &&
+ pai->ai_protocol != GAI_ANY)
+ ERR(EAI_BADHINTS); /*xxx*/
+ pai->ai_protocol = IPPROTO_TCP;
+ break;
+ default:
+ ERR(EAI_SOCKTYPE);
+ /* unreachable */
+ }
+ }
+
+ /*
+ * service port
+ */
+ if (servname) {
+ if (str_isnumber(servname)) {
+ if (pai->ai_socktype == GAI_ANY) {
+ /* caller accept *GAI_ANY* socktype */
+ pai->ai_socktype = SOCK_DGRAM;
+ pai->ai_protocol = IPPROTO_UDP;
+ }
+ port = htons((u_short)atoi(servname));
+ } else {
+ struct servent *sp;
+ char *proto;
+
+ proto = NULL;
+ switch (pai->ai_socktype) {
+ case GAI_ANY:
+ proto = NULL;
+ break;
+ case SOCK_DGRAM:
+ proto = "udp";
+ break;
+ case SOCK_STREAM:
+ proto = "tcp";
+ break;
+ default:
+ fprintf(stderr, "panic!\n");
+ break;
+ }
+ if ((sp = getservbyname(servname, proto)) == NULL)
+ ERR(EAI_SERVICE);
+ port = sp->s_port;
+ if (pai->ai_socktype == GAI_ANY) {
+ if (strcmp(sp->s_proto, "udp") == 0) {
+ pai->ai_socktype = SOCK_DGRAM;
+ pai->ai_protocol = IPPROTO_UDP;
+ } else if (strcmp(sp->s_proto, "tcp") == 0) {
+ pai->ai_socktype = SOCK_STREAM;
+ pai->ai_protocol = IPPROTO_TCP;
+ } else
+ ERR(EAI_PROTOCOL); /*xxx*/
+ }
+ }
+ }
+
+ /*
+ * hostname == NULL.
+ * passive socket -> anyaddr (0.0.0.0 or ::)
+ * non-passive socket -> localhost (127.0.0.1 or ::1)
+ */
+ if (hostname == NULL) {
+ struct gai_afd *gai_afd;
+
+ for (gai_afd = &gai_afdl[0]; gai_afd->a_af; gai_afd++) {
+ if (!(pai->ai_family == PF_UNSPEC
+ || pai->ai_family == gai_afd->a_af)) {
+ continue;
+ }
+
+ if (pai->ai_flags & AI_PASSIVE) {
+ GET_AI(cur->ai_next, gai_afd, gai_afd->a_addrany, port);
+ /* xxx meaningless?
+ * GET_CANONNAME(cur->ai_next, "anyaddr");
+ */
+ } else {
+ GET_AI(cur->ai_next, gai_afd, gai_afd->a_loopback,
+ port);
+ /* xxx meaningless?
+ * GET_CANONNAME(cur->ai_next, "localhost");
+ */
+ }
+ cur = cur->ai_next;
+ }
+ top = sentinel.ai_next;
+ if (top)
+ goto good;
+ else
+ ERR(EAI_FAMILY);
+ }
+
+ /* hostname as numeric name */
+ for (i = 0; gai_afdl[i].a_af; i++) {
+ if (inet_pton(gai_afdl[i].a_af, hostname, pton)) {
+ u_long v4a;
#ifdef ENABLE_IPV6
- u_char pfx;
+ u_char pfx;
#endif
- switch (gai_afdl[i].a_af) {
- case AF_INET:
- v4a = ((struct in_addr *)pton)->s_addr;
- v4a = ntohl(v4a);
- if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
- pai->ai_flags &= ~AI_CANONNAME;
- v4a >>= IN_CLASSA_NSHIFT;
- if (v4a == 0 || v4a == IN_LOOPBACKNET)
- pai->ai_flags &= ~AI_CANONNAME;
- break;
+ switch (gai_afdl[i].a_af) {
+ case AF_INET:
+ v4a = ((struct in_addr *)pton)->s_addr;
+ v4a = ntohl(v4a);
+ if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
+ pai->ai_flags &= ~AI_CANONNAME;
+ v4a >>= IN_CLASSA_NSHIFT;
+ if (v4a == 0 || v4a == IN_LOOPBACKNET)
+ pai->ai_flags &= ~AI_CANONNAME;
+ break;
#ifdef ENABLE_IPV6
- case AF_INET6:
- pfx = ((struct in6_addr *)pton)->s6_addr8[0];
- if (pfx == 0 || pfx == 0xfe || pfx == 0xff)
- pai->ai_flags &= ~AI_CANONNAME;
- break;
+ case AF_INET6:
+ pfx = ((struct in6_addr *)pton)->s6_addr8[0];
+ if (pfx == 0 || pfx == 0xfe || pfx == 0xff)
+ pai->ai_flags &= ~AI_CANONNAME;
+ break;
#endif
- }
-
- if (pai->ai_family == gai_afdl[i].a_af ||
- pai->ai_family == PF_UNSPEC) {
- if (! (pai->ai_flags & AI_CANONNAME)) {
- GET_AI(top, &gai_afdl[i], pton, port);
- goto good;
- }
- /*
- * if AI_CANONNAME and if reverse lookup
- * fail, return ai anyway to pacify
- * calling application.
- *
- * XXX getaddrinfo() is a name->address
- * translation function, and it looks strange
- * that we do addr->name translation here.
- */
- get_name(pton, &gai_afdl[i], &top, pton, pai, port);
- goto good;
- } else
- ERR(EAI_FAMILY); /*xxx*/
- }
- }
-
- if (pai->ai_flags & AI_NUMERICHOST)
- ERR(EAI_NONAME);
-
- /* hostname as alphabetical name */
- error = get_addr(hostname, pai->ai_family, &top, pai, port);
- if (error == 0) {
- if (top) {
+ }
+
+ if (pai->ai_family == gai_afdl[i].a_af ||
+ pai->ai_family == PF_UNSPEC) {
+ if (! (pai->ai_flags & AI_CANONNAME)) {
+ GET_AI(top, &gai_afdl[i], pton, port);
+ goto good;
+ }
+ /*
+ * if AI_CANONNAME and if reverse lookup
+ * fail, return ai anyway to pacify
+ * calling application.
+ *
+ * XXX getaddrinfo() is a name->address
+ * translation function, and it looks strange
+ * that we do addr->name translation here.
+ */
+ get_name(pton, &gai_afdl[i], &top, pton, pai, port);
+ goto good;
+ } else
+ ERR(EAI_FAMILY); /*xxx*/
+ }
+ }
+
+ if (pai->ai_flags & AI_NUMERICHOST)
+ ERR(EAI_NONAME);
+
+ /* hostname as alphabetical name */
+ error = get_addr(hostname, pai->ai_family, &top, pai, port);
+ if (error == 0) {
+ if (top) {
good:
- *res = top;
- return SUCCESS;
- } else
- error = EAI_FAIL;
- }
+ *res = top;
+ return SUCCESS;
+ } else
+ error = EAI_FAIL;
+ }
free:
- if (top)
- freeaddrinfo(top);
+ if (top)
+ freeaddrinfo(top);
bad:
- *res = NULL;
- return error;
+ *res = NULL;
+ return error;
}
static int
get_name(addr, gai_afd, res, numaddr, pai, port0)
- const char *addr;
- struct gai_afd *gai_afd;
- struct addrinfo **res;
- char *numaddr;
- struct addrinfo *pai;
- int port0;
+ const char *addr;
+ struct gai_afd *gai_afd;
+ struct addrinfo **res;
+ char *numaddr;
+ struct addrinfo *pai;
+ int port0;
{
- u_short port = port0 & 0xffff;
- struct hostent *hp;
- struct addrinfo *cur;
- int error = 0;
+ u_short port = port0 & 0xffff;
+ struct hostent *hp;
+ struct addrinfo *cur;
+ int error = 0;
#ifdef ENABLE_IPV6
- int h_error;
+ int h_error;
#endif
-
+
#ifdef ENABLE_IPV6
- hp = getipnodebyaddr(addr, gai_afd->a_addrlen, gai_afd->a_af, &h_error);
+ hp = getipnodebyaddr(addr, gai_afd->a_addrlen, gai_afd->a_af, &h_error);
#else
- hp = gethostbyaddr(addr, gai_afd->a_addrlen, AF_INET);
+ hp = gethostbyaddr(addr, gai_afd->a_addrlen, AF_INET);
#endif
- if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
- GET_AI(cur, gai_afd, hp->h_addr_list[0], port);
- GET_CANONNAME(cur, hp->h_name);
- } else
- GET_AI(cur, gai_afd, numaddr, port);
-
+ if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
+ GET_AI(cur, gai_afd, hp->h_addr_list[0], port);
+ GET_CANONNAME(cur, hp->h_name);
+ } else
+ GET_AI(cur, gai_afd, numaddr, port);
+
#ifdef ENABLE_IPV6
- if (hp)
- freehostent(hp);
+ if (hp)
+ freehostent(hp);
#endif
- *res = cur;
- return SUCCESS;
+ *res = cur;
+ return SUCCESS;
free:
- if (cur)
- freeaddrinfo(cur);
+ if (cur)
+ freeaddrinfo(cur);
#ifdef ENABLE_IPV6
- if (hp)
- freehostent(hp);
+ if (hp)
+ freehostent(hp);
#endif
/* bad: */
- *res = NULL;
- return error;
+ *res = NULL;
+ return error;
}
static int
get_addr(hostname, af, res, pai, port0)
- const char *hostname;
- int af;
- struct addrinfo **res;
- struct addrinfo *pai;
- int port0;
+ const char *hostname;
+ int af;
+ struct addrinfo **res;
+ struct addrinfo *pai;
+ int port0;
{
- u_short port = port0 & 0xffff;
- struct addrinfo sentinel;
- struct hostent *hp;
- struct addrinfo *top, *cur;
- struct gai_afd *gai_afd;
- int i, error = 0, h_error;
- char *ap;
-
- top = NULL;
- sentinel.ai_next = NULL;
- cur = &sentinel;
+ u_short port = port0 & 0xffff;
+ struct addrinfo sentinel;
+ struct hostent *hp;
+ struct addrinfo *top, *cur;
+ struct gai_afd *gai_afd;
+ int i, error = 0, h_error;
+ char *ap;
+
+ top = NULL;
+ sentinel.ai_next = NULL;
+ cur = &sentinel;
#ifdef ENABLE_IPV6
- if (af == AF_UNSPEC) {
- hp = getipnodebyname(hostname, AF_INET6,
- AI_ADDRCONFIG|AI_ALL|AI_V4MAPPED, &h_error);
- } else
- hp = getipnodebyname(hostname, af, AI_ADDRCONFIG, &h_error);
+ if (af == AF_UNSPEC) {
+ hp = getipnodebyname(hostname, AF_INET6,
+ AI_ADDRCONFIG|AI_ALL|AI_V4MAPPED, &h_error);
+ } else
+ hp = getipnodebyname(hostname, af, AI_ADDRCONFIG, &h_error);
#else
- hp = gethostbyname(hostname);
- h_error = h_errno;
+ hp = gethostbyname(hostname);
+ h_error = h_errno;
#endif
- if (hp == NULL) {
- switch (h_error) {
- case HOST_NOT_FOUND:
- case NO_DATA:
- error = EAI_NODATA;
- break;
- case TRY_AGAIN:
- error = EAI_AGAIN;
- break;
- case NO_RECOVERY:
- default:
- error = EAI_FAIL;
- break;
- }
- goto free;
- }
-
- if ((hp->h_name == NULL) || (hp->h_name[0] == 0) ||
- (hp->h_addr_list[0] == NULL)) {
- error = EAI_FAIL;
- goto free;
- }
-
- for (i = 0; (ap = hp->h_addr_list[i]) != NULL; i++) {
- switch (af) {
+ if (hp == NULL) {
+ switch (h_error) {
+ case HOST_NOT_FOUND:
+ case NO_DATA:
+ error = EAI_NODATA;
+ break;
+ case TRY_AGAIN:
+ error = EAI_AGAIN;
+ break;
+ case NO_RECOVERY:
+ default:
+ error = EAI_FAIL;
+ break;
+ }
+ goto free;
+ }
+
+ if ((hp->h_name == NULL) || (hp->h_name[0] == 0) ||
+ (hp->h_addr_list[0] == NULL)) {
+ error = EAI_FAIL;
+ goto free;
+ }
+
+ for (i = 0; (ap = hp->h_addr_list[i]) != NULL; i++) {
+ switch (af) {
#ifdef ENABLE_IPV6
- case AF_INET6:
- gai_afd = &gai_afdl[N_INET6];
- break;
+ case AF_INET6:
+ gai_afd = &gai_afdl[N_INET6];
+ break;
#endif
#ifndef ENABLE_IPV6
- default: /* AF_UNSPEC */
+ default: /* AF_UNSPEC */
#endif
- case AF_INET:
- gai_afd = &gai_afdl[N_INET];
- break;
+ case AF_INET:
+ gai_afd = &gai_afdl[N_INET];
+ break;
#ifdef ENABLE_IPV6
- default: /* AF_UNSPEC */
- if (IN6_IS_ADDR_V4MAPPED((struct in6_addr *)ap)) {
- ap += sizeof(struct in6_addr) -
- sizeof(struct in_addr);
- gai_afd = &gai_afdl[N_INET];
- } else
- gai_afd = &gai_afdl[N_INET6];
- break;
+ default: /* AF_UNSPEC */
+ if (IN6_IS_ADDR_V4MAPPED((struct in6_addr *)ap)) {
+ ap += sizeof(struct in6_addr) -
+ sizeof(struct in_addr);
+ gai_afd = &gai_afdl[N_INET];
+ } else
+ gai_afd = &gai_afdl[N_INET6];
+ break;
#endif
- }
+ }
#ifdef FAITH
- if (translate && gai_afd->a_af == AF_INET) {
- struct in6_addr *in6;
-
- GET_AI(cur->ai_next, &gai_afdl[N_INET6], ap, port);
- in6 = &((struct sockaddr_in6 *)cur->ai_next->ai_addr)->sin6_addr;
- memcpy(&in6->s6_addr32[0], &faith_prefix,
- sizeof(struct in6_addr) - sizeof(struct in_addr));
- memcpy(&in6->s6_addr32[3], ap, sizeof(struct in_addr));
- } else
+ if (translate && gai_afd->a_af == AF_INET) {
+ struct in6_addr *in6;
+
+ GET_AI(cur->ai_next, &gai_afdl[N_INET6], ap, port);
+ in6 = &((struct sockaddr_in6 *)cur->ai_next->ai_addr)->sin6_addr;
+ memcpy(&in6->s6_addr32[0], &faith_prefix,
+ sizeof(struct in6_addr) - sizeof(struct in_addr));
+ memcpy(&in6->s6_addr32[3], ap, sizeof(struct in_addr));
+ } else
#endif /* FAITH */
- GET_AI(cur->ai_next, gai_afd, ap, port);
- if (cur == &sentinel) {
- top = cur->ai_next;
- GET_CANONNAME(top, hp->h_name);
- }
- cur = cur->ai_next;
- }
+ GET_AI(cur->ai_next, gai_afd, ap, port);
+ if (cur == &sentinel) {
+ top = cur->ai_next;
+ GET_CANONNAME(top, hp->h_name);
+ }
+ cur = cur->ai_next;
+ }
#ifdef ENABLE_IPV6
- freehostent(hp);
+ freehostent(hp);
#endif
- *res = top;
- return SUCCESS;
+ *res = top;
+ return SUCCESS;
free:
- if (top)
- freeaddrinfo(top);
+ if (top)
+ freeaddrinfo(top);
#ifdef ENABLE_IPV6
- if (hp)
- freehostent(hp);
+ if (hp)
+ freehostent(hp);
#endif
/* bad: */
- *res = NULL;
- return error;
+ *res = NULL;
+ return error;
}
generated by cgit v0.12 at 2024-11-20 07:18:15 (GMT)