*
* 06-Oct-2007 : Various fixes to allow the build on MinGW
*
- * Squid CVS $Id: getaddrinfo.c,v 1.1 2007/12/14 05:03:26 amosjeffries Exp $
+ * Squid CVS $Id$
*
* Original License and code follows.
*/
#include "inet_pton.h"
static struct addrinfo *
-dup_addrinfo (struct addrinfo *info, void *addr, size_t addrlen)
-{
- struct addrinfo *ret;
-
- ret = malloc (sizeof (struct addrinfo));
- if (ret == NULL)
- return NULL;
- memcpy (ret, info, sizeof (struct addrinfo));
- ret->ai_addr = malloc (addrlen);
- if (ret->ai_addr == NULL)
- {
- free (ret);
- return NULL;
+ dup_addrinfo (struct addrinfo *info, void *addr, size_t addrlen) {
+ struct addrinfo *ret;
+
+ ret = malloc (sizeof (struct addrinfo));
+ if (ret == NULL)
+ return NULL;
+ memcpy (ret, info, sizeof (struct addrinfo));
+ ret->ai_addr = malloc (addrlen);
+ if (ret->ai_addr == NULL) {
+ free (ret);
+ return NULL;
}
- memcpy (ret->ai_addr, addr, addrlen);
- ret->ai_addrlen = addrlen;
- return ret;
+ memcpy (ret->ai_addr, addr, addrlen);
+ ret->ai_addrlen = addrlen;
+ return ret;
}
int
xgetaddrinfo (const char *nodename, const char *servname,
- const struct addrinfo *hints, struct addrinfo **res)
+ const struct addrinfo *hints, struct addrinfo **res)
{
- struct hostent *hp;
- struct servent *servent;
- const char *socktype;
- int port;
- struct addrinfo hint, result;
- struct addrinfo *ai, *sai, *eai;
- char **addrs;
-
- if (servname == NULL && nodename == NULL)
- return EAI_NONAME;
-
- memset (&result, 0, sizeof result);
-
- /* default for hints */
- if (hints == NULL)
- {
- memset (&hint, 0, sizeof hint);
- hint.ai_family = PF_UNSPEC;
- hints = &hint;
+ struct hostent *hp;
+ struct servent *servent;
+ const char *socktype;
+ int port;
+ struct addrinfo hint, result;
+ struct addrinfo *ai, *sai, *eai;
+ char **addrs;
+
+ if (servname == NULL && nodename == NULL)
+ return EAI_NONAME;
+
+ memset (&result, 0, sizeof result);
+
+ /* default for hints */
+ if (hints == NULL) {
+ memset (&hint, 0, sizeof hint);
+ hint.ai_family = PF_UNSPEC;
+ hints = &hint;
}
- if (servname == NULL)
- port = 0;
- else {
- /* check for tcp or udp sockets only */
- if (hints->ai_socktype == SOCK_STREAM)
- socktype = "tcp";
- else if (hints->ai_socktype == SOCK_DGRAM)
- socktype = "udp";
- else
- return EAI_SERVICE;
- result.ai_socktype = hints->ai_socktype;
-
- /* Note: maintain port in host byte order to make debugging easier */
- if (isdigit (*servname))
- port = strtol (servname, NULL, 10);
- else if ((servent = getservbyname (servname, socktype)) != NULL)
- port = ntohs (servent->s_port);
- else
- return EAI_NONAME;
- }
-
- /* if nodename == NULL refer to the local host for a client or any
- for a server */
- if (nodename == NULL)
- {
- struct sockaddr_in sin;
-
- /* check protocol family is PF_UNSPEC or PF_INET - could try harder
- for IPv6 but that's more code than I'm prepared to write */
- if (hints->ai_family == PF_UNSPEC || hints->ai_family == PF_INET)
- result.ai_family = AF_INET;
- else
- return EAI_FAMILY;
-
- sin.sin_family = result.ai_family;
- sin.sin_port = htons (port);
- if (hints->ai_flags & AI_PASSIVE)
- sin.sin_addr.s_addr = htonl (INADDR_ANY);
- else
- sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- /* Duplicate result and addr and return */
- *res = dup_addrinfo (&result, &sin, sizeof sin);
- return (*res == NULL) ? EAI_MEMORY : 0;
+ if (servname == NULL)
+ port = 0;
+ else {
+ /* check for tcp or udp sockets only */
+ if (hints->ai_socktype == SOCK_STREAM)
+ socktype = "tcp";
+ else if (hints->ai_socktype == SOCK_DGRAM)
+ socktype = "udp";
+ else
+ return EAI_SERVICE;
+ result.ai_socktype = hints->ai_socktype;
+
+ /* Note: maintain port in host byte order to make debugging easier */
+ if (isdigit (*servname))
+ port = strtol (servname, NULL, 10);
+ else if ((servent = getservbyname (servname, socktype)) != NULL)
+ port = ntohs (servent->s_port);
+ else
+ return EAI_NONAME;
}
- /* If AI_NUMERIC is specified, use xinet_pton to translate numbers and
- dots notation. */
- if (hints->ai_flags & AI_NUMERICHOST)
- {
- struct sockaddr_in sin;
-
- /* check protocol family is PF_UNSPEC or PF_INET */
- if (hints->ai_family == PF_UNSPEC || hints->ai_family == PF_INET)
- result.ai_family = AF_INET;
- else
- return EAI_FAMILY;
-
- sin.sin_family = result.ai_family;
- sin.sin_port = htons (port);
- if (xinet_pton(result.ai_family, nodename, &sin.sin_addr))
- return EAI_NONAME;
- sin.sin_addr.s_addr = inet_addr (nodename);
- /* Duplicate result and addr and return */
- *res = dup_addrinfo (&result, &sin, sizeof sin);
- return (*res == NULL) ? EAI_MEMORY : 0;
+ /* if nodename == NULL refer to the local host for a client or any
+ for a server */
+ if (nodename == NULL) {
+ struct sockaddr_in sin;
+
+ /* check protocol family is PF_UNSPEC or PF_INET - could try harder
+ for IPv6 but that's more code than I'm prepared to write */
+ if (hints->ai_family == PF_UNSPEC || hints->ai_family == PF_INET)
+ result.ai_family = AF_INET;
+ else
+ return EAI_FAMILY;
+
+ sin.sin_family = result.ai_family;
+ sin.sin_port = htons (port);
+ if (hints->ai_flags & AI_PASSIVE)
+ sin.sin_addr.s_addr = htonl (INADDR_ANY);
+ else
+ sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ /* Duplicate result and addr and return */
+ *res = dup_addrinfo (&result, &sin, sizeof sin);
+ return (*res == NULL) ? EAI_MEMORY : 0;
+ }
+
+ /* If AI_NUMERIC is specified, use xinet_pton to translate numbers and
+ dots notation. */
+ if (hints->ai_flags & AI_NUMERICHOST) {
+ struct sockaddr_in sin;
+
+ /* check protocol family is PF_UNSPEC or PF_INET */
+ if (hints->ai_family == PF_UNSPEC || hints->ai_family == PF_INET)
+ result.ai_family = AF_INET;
+ else
+ return EAI_FAMILY;
+
+ sin.sin_family = result.ai_family;
+ sin.sin_port = htons (port);
+ if (xinet_pton(result.ai_family, nodename, &sin.sin_addr))
+ return EAI_NONAME;
+ sin.sin_addr.s_addr = inet_addr (nodename);
+ /* Duplicate result and addr and return */
+ *res = dup_addrinfo (&result, &sin, sizeof sin);
+ return (*res == NULL) ? EAI_MEMORY : 0;
}
- h_errno = 0;
- errno = 0;
- hp = gethostbyname(nodename);
- if (hp == NULL)
- {
+ h_errno = 0;
+ errno = 0;
+ hp = gethostbyname(nodename);
+ if (hp == NULL) {
#ifdef EAI_SYSTEM
- if (errno != 0) {
- return EAI_SYSTEM;
- }
+ if (errno != 0) {
+ return EAI_SYSTEM;
+ }
#endif
- switch (h_errno)
- {
- case HOST_NOT_FOUND: return EAI_NODATA;
- case NO_DATA: return EAI_NODATA;
+ switch (h_errno) {
+ case HOST_NOT_FOUND:
+ return EAI_NODATA;
+ case NO_DATA:
+ return EAI_NODATA;
#if defined(NO_ADDRESS) && NO_ADDRESS != NO_DATA
- case NO_ADDRESS: return EAI_NODATA;
+ case NO_ADDRESS:
+ return EAI_NODATA;
#endif
- case NO_RECOVERY: return EAI_FAIL;
- case TRY_AGAIN: return EAI_AGAIN;
- default: return EAI_FAIL;
+ case NO_RECOVERY:
+ return EAI_FAIL;
+ case TRY_AGAIN:
+ return EAI_AGAIN;
+ default:
+ return EAI_FAIL;
}
- return EAI_FAIL;
+ return EAI_FAIL;
}
- /* Check that the address family is acceptable.
- */
- switch (hp->h_addrtype)
- {
+ /* Check that the address family is acceptable.
+ */
+ switch (hp->h_addrtype) {
case AF_INET:
- if (!(hints->ai_family == PF_UNSPEC || hints->ai_family == PF_INET))
- return EAI_FAMILY;
- break;
+ if (!(hints->ai_family == PF_UNSPEC || hints->ai_family == PF_INET))
+ return EAI_FAMILY;
+ break;
#if USE_IPV6
case AF_INET6:
- if (!(hints->ai_family == PF_UNSPEC || hints->ai_family == PF_INET6))
- return EAI_FAMILY;
- break;
+ if (!(hints->ai_family == PF_UNSPEC || hints->ai_family == PF_INET6))
+ return EAI_FAMILY;
+ break;
#endif
default:
- return EAI_FAMILY;
+ return EAI_FAMILY;
}
- /* For each element pointed to by hp, create an element in the
- result linked list. */
- sai = eai = NULL;
- for (addrs = hp->h_addr_list; *addrs != NULL; addrs++)
- {
- struct sockaddr sa;
- size_t addrlen;
-
- if (hp->h_length < 1)
- continue;
- sa.sa_family = hp->h_addrtype;
- switch (hp->h_addrtype)
- {
+ /* For each element pointed to by hp, create an element in the
+ result linked list. */
+ sai = eai = NULL;
+ for (addrs = hp->h_addr_list; *addrs != NULL; addrs++) {
+ struct sockaddr sa;
+ size_t addrlen;
+
+ if (hp->h_length < 1)
+ continue;
+ sa.sa_family = hp->h_addrtype;
+ switch (hp->h_addrtype) {
case AF_INET:
- ((struct sockaddr_in *) &sa)->sin_port = htons (port);
- memcpy (&((struct sockaddr_in *) &sa)->sin_addr,
- *addrs, hp->h_length);
- addrlen = sizeof (struct sockaddr_in);
- break;
+ ((struct sockaddr_in *) &sa)->sin_port = htons (port);
+ memcpy (&((struct sockaddr_in *) &sa)->sin_addr,
+ *addrs, hp->h_length);
+ addrlen = sizeof (struct sockaddr_in);
+ break;
#if USE_IPV6
case AF_INET6:
#if SIN6_LEN
- ((struct sockaddr_in6 *) &sa)->sin6_len = hp->h_length;
+ ((struct sockaddr_in6 *) &sa)->sin6_len = hp->h_length;
#endif
- ((struct sockaddr_in6 *) &sa)->sin6_port = htons (port);
- memcpy (&((struct sockaddr_in6 *) &sa)->sin6_addr,
- *addrs, hp->h_length);
- addrlen = sizeof (struct sockaddr_in6);
- break;
+ ((struct sockaddr_in6 *) &sa)->sin6_port = htons (port);
+ memcpy (&((struct sockaddr_in6 *) &sa)->sin6_addr,
+ *addrs, hp->h_length);
+ addrlen = sizeof (struct sockaddr_in6);
+ break;
#endif
default:
- continue;
+ continue;
}
- result.ai_family = hp->h_addrtype;
- ai = dup_addrinfo (&result, &sa, addrlen);
- if (ai == NULL)
- {
- xfreeaddrinfo (sai);
- return EAI_MEMORY;
+ result.ai_family = hp->h_addrtype;
+ ai = dup_addrinfo (&result, &sa, addrlen);
+ if (ai == NULL) {
+ xfreeaddrinfo (sai);
+ return EAI_MEMORY;
}
- if (sai == NULL)
- sai = ai;
- else
- eai->ai_next = ai;
- eai = ai;
+ if (sai == NULL)
+ sai = ai;
+ else
+ eai->ai_next = ai;
+ eai = ai;
}
- if (sai == NULL)
- {
- return EAI_NODATA;
+ if (sai == NULL) {
+ return EAI_NODATA;
}
-
- if (hints->ai_flags & AI_CANONNAME)
- {
- sai->ai_canonname = malloc (strlen (hp->h_name) + 1);
- if (sai->ai_canonname == NULL)
- {
- xfreeaddrinfo (sai);
- return EAI_MEMORY;
+
+ if (hints->ai_flags & AI_CANONNAME) {
+ sai->ai_canonname = malloc (strlen (hp->h_name) + 1);
+ if (sai->ai_canonname == NULL) {
+ xfreeaddrinfo (sai);
+ return EAI_MEMORY;
}
- strcpy (sai->ai_canonname, hp->h_name);
+ strcpy (sai->ai_canonname, hp->h_name);
}
- *res = sai;
- return 0;
+ *res = sai;
+ return 0;
}
void
xfreeaddrinfo (struct addrinfo *ai)
{
- struct addrinfo *next;
-
- while (ai != NULL)
- {
- next = ai->ai_next;
- if (ai->ai_canonname != NULL)
- free (ai->ai_canonname);
- if (ai->ai_addr != NULL)
- free (ai->ai_addr);
- free (ai);
- ai = next;
+ struct addrinfo *next;
+
+ while (ai != NULL) {
+ next = ai->ai_next;
+ if (ai->ai_canonname != NULL)
+ free (ai->ai_canonname);
+ if (ai->ai_addr != NULL)
+ free (ai->ai_addr);
+ free (ai);
+ ai = next;
}
}
const char *
xgai_strerror (int ecode)
{
- static const char *eai_descr[] =
- {
- "no error",
- "address family for nodename 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 nodename", /* EAI_NODATA */
- "nodename 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 */
- "argument buffer overflow", /* EAI_OVERFLOW */
+ static const char *eai_descr[] = {
+ "no error",
+ "address family for nodename 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 nodename", /* EAI_NODATA */
+ "nodename 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 */
+ "argument buffer overflow", /* EAI_OVERFLOW */
};
- if (ecode < 0 || ecode > (int) (sizeof eai_descr/ sizeof eai_descr[0]))
- return "unknown error";
- return eai_descr[ecode];
+ if (ecode < 0 || ecode > (int) (sizeof eai_descr/ sizeof eai_descr[0]))
+ return "unknown error";
+ return eai_descr[ecode];
}
#endif /* HAVE_GETADDRINFO */
projects / thirdparty / squid.git / blobdiff