* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
- * $Id$
***************************************************************************/
-#include "setup.h"
+#include "curl_setup.h"
-#include <string.h>
-#include <errno.h>
-
-#define _REENTRANT
-
-#if defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__)
-#include <malloc.h>
-#else
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h> /* required for free() prototypes */
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h> /* for the close() proto */
-#endif
-#ifdef VMS
+#ifdef __VMS
#include <in.h>
#include <inet.h>
-#include <stdlib.h>
-#endif
#endif
-#ifdef HAVE_SETJMP_H
-#include <setjmp.h>
-#endif
-
-#ifdef WIN32
+#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
-#if (defined(NETWARE) && defined(__NOVELL_LIBC__))
-#undef in_addr_t
-#define in_addr_t unsigned long
-#endif
-
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "share.h"
#include "strerror.h"
#include "url.h"
+#include "inet_pton.h"
#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
-#if defined(HAVE_INET_NTOA_R) && !defined(HAVE_INET_NTOA_R_DECL)
-#include "inet_ntoa_r.h"
-#endif
-
-#include "memory.h"
+#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
* Only for plain-ipv4 builds
**********************************************************************/
#ifdef CURLRES_IPV4 /* plain ipv4 code coming up */
-
-/*
- * This is a function for freeing name information in a protocol independent
- * way.
- */
-void Curl_freeaddrinfo(Curl_addrinfo *ai)
-{
- Curl_addrinfo *next;
-
- /* walk over the list and free all entries */
- while(ai) {
- next = ai->ai_next;
- free(ai);
- ai = next;
- }
-}
-
/*
* Curl_ipvalid() checks what CURL_IPRESOLVE_* requirements that might've
* been set and returns TRUE if they are OK.
*/
-bool Curl_ipvalid(struct SessionHandle *data)
+bool Curl_ipvalid(struct connectdata *conn)
{
- if(data->set.ip_version == CURL_IPRESOLVE_V6)
+ if(conn->ip_version == CURL_IPRESOLVE_V6)
/* an ipv6 address was requested and we can't get/use one */
return FALSE;
return TRUE; /* OK, proceed */
}
-struct namebuf {
- struct hostent hostentry;
- char *h_addr_list[2];
- struct in_addr addrentry;
- char h_name[16]; /* 123.123.123.123 = 15 letters is maximum */
-};
-
-/*
- * Curl_ip2addr() takes a 32bit ipv4 internet address as input parameter
- * together with a pointer to the string version of the address, and it
- * returns a Curl_addrinfo chain filled in correctly with information for this
- * address/host.
- *
- * The input parameters ARE NOT checked for validity but they are expected
- * to have been checked already when this is called.
- */
-Curl_addrinfo *Curl_ip2addr(in_addr_t num, char *hostname, int port)
-{
- Curl_addrinfo *ai;
- struct hostent *h;
- struct in_addr *addrentry;
- struct namebuf buffer;
- struct namebuf *buf = &buffer;
-
- h = &buf->hostentry;
- h->h_addr_list = &buf->h_addr_list[0];
- addrentry = &buf->addrentry;
- addrentry->s_addr = num;
- h->h_addr_list[0] = (char*)addrentry;
- h->h_addr_list[1] = NULL;
- h->h_addrtype = AF_INET;
- h->h_length = sizeof(*addrentry);
- h->h_name = &buf->h_name[0];
- h->h_aliases = NULL;
-
- /* Now store the dotted version of the address */
- snprintf(h->h_name, 16, "%s", hostname);
-
- ai = Curl_he2ai(h, port);
-
- return ai;
-}
-
-#ifdef CURLRES_SYNCH /* the functions below are for synchronous resolves */
+#ifdef CURLRES_SYNCH
/*
* Curl_getaddrinfo() - the ipv4 synchronous version.
*
- * The original code to this function was once stolen from the Dancer source
- * code, written by Bjorn Reese, it has since been patched and modified
- * considerably.
+ * The original code to this function was from the Dancer source code, written
+ * by Bjorn Reese, it has since been patched and modified considerably.
*
* gethostbyname_r() is the thread-safe version of the gethostbyname()
* function. When we build for plain IPv4, we attempt to use this
*
*/
Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
- char *hostname,
+ const char *hostname,
int port,
int *waitp)
{
Curl_addrinfo *ai = NULL;
+
+#ifdef CURL_DISABLE_VERBOSE_STRINGS
+ (void)conn;
+#endif
+
+ *waitp = 0; /* synchronous response only */
+
+ ai = Curl_ipv4_resolve_r(hostname, port);
+ if(!ai)
+ infof(conn->data, "Curl_ipv4_resolve_r failed for %s\n", hostname);
+
+ return ai;
+}
+#endif /* CURLRES_SYNCH */
+#endif /* CURLRES_IPV4 */
+
+#if defined(CURLRES_IPV4) && !defined(CURLRES_ARES)
+
+/*
+ * Curl_ipv4_resolve_r() - ipv4 threadsafe resolver function.
+ *
+ * This is used for both synchronous and asynchronous resolver builds,
+ * implying that only threadsafe code and function calls may be used.
+ *
+ */
+Curl_addrinfo *Curl_ipv4_resolve_r(const char *hostname,
+ int port)
+{
+#if !defined(HAVE_GETADDRINFO_THREADSAFE) && defined(HAVE_GETHOSTBYNAME_R_3)
+ int res;
+#endif
+ Curl_addrinfo *ai = NULL;
struct hostent *h = NULL;
- in_addr_t in;
- struct SessionHandle *data = conn->data;
+ struct in_addr in;
struct hostent *buf = NULL;
- (void)port; /* unused in IPv4 code */
+ if(Curl_inet_pton(AF_INET, hostname, &in) > 0)
+ /* This is a dotted IP address 123.123.123.123-style */
+ return Curl_ip2addr(AF_INET, &in, hostname, port);
- *waitp = 0; /* don't wait, we act synchronously */
+#if defined(HAVE_GETADDRINFO_THREADSAFE)
+ else {
+ struct addrinfo hints;
+ char sbuf[12];
+ char *sbufptr = NULL;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = PF_INET;
+ hints.ai_socktype = SOCK_STREAM;
+ if(port) {
+ snprintf(sbuf, sizeof(sbuf), "%d", port);
+ sbufptr = sbuf;
+ }
- in=inet_addr(hostname);
- if (in != CURL_INADDR_NONE) {
- /* This is a dotted IP address 123.123.123.123-style */
- return Curl_ip2addr(in, hostname, port);
- }
+ (void)Curl_getaddrinfo_ex(hostname, sbufptr, &hints, &ai);
-#if defined(HAVE_GETHOSTBYNAME_R)
+#elif defined(HAVE_GETHOSTBYNAME_R)
/*
* gethostbyname_r() is the preferred resolve function for many platforms.
* Since there are three different versions of it, the following code is
*/
else {
int h_errnop;
- int res=ERANGE;
- buf = (struct hostent *)calloc(CURL_HOSTENT_SIZE, 1);
+ buf = calloc(1, CURL_HOSTENT_SIZE);
if(!buf)
return NULL; /* major failure */
/*
* platforms.
*/
-#ifdef HAVE_GETHOSTBYNAME_R_5
+#if defined(HAVE_GETHOSTBYNAME_R_5)
/* Solaris, IRIX and more */
- (void)res; /* prevent compiler warning */
h = gethostbyname_r(hostname,
(struct hostent *)buf,
(char *)buf + sizeof(struct hostent),
;
}
else
-#endif /* HAVE_GETHOSTBYNAME_R_5 */
-#ifdef HAVE_GETHOSTBYNAME_R_6
+#elif defined(HAVE_GETHOSTBYNAME_R_6)
/* Linux */
- res=gethostbyname_r(hostname,
+ (void)gethostbyname_r(hostname,
(struct hostent *)buf,
(char *)buf + sizeof(struct hostent),
CURL_HOSTENT_SIZE - sizeof(struct hostent),
*/
if(!h) /* failure */
-#endif/* HAVE_GETHOSTBYNAME_R_6 */
-#ifdef HAVE_GETHOSTBYNAME_R_3
+#elif defined(HAVE_GETHOSTBYNAME_R_3)
/* AIX, Digital Unix/Tru64, HPUX 10, more? */
/* For AIX 4.3 or later, we don't use gethostbyname_r() at all, because of
(struct hostent *)buf,
(struct hostent_data *)((char *)buf +
sizeof(struct hostent)));
- h_errnop= errno; /* we don't deal with this, but set it anyway */
+ h_errnop = SOCKERRNO; /* we don't deal with this, but set it anyway */
}
else
res = -1; /* failure, too smallish buffer size */
*/
}
else
-#endif /* HAVE_GETHOSTBYNAME_R_3 */
- {
- infof(data, "gethostbyname_r(2) failed for %s\n", hostname);
+#endif /* HAVE_...BYNAME_R_5 || HAVE_...BYNAME_R_6 || HAVE_...BYNAME_R_3 */
+ {
h = NULL; /* set return code to NULL */
free(buf);
}
-#else /* HAVE_GETHOSTBYNAME_R */
+#else /* HAVE_GETADDRINFO_THREADSAFE || HAVE_GETHOSTBYNAME_R */
/*
- * Here is code for platforms that don't have gethostbyname_r() or for
- * which the gethostbyname() is the preferred() function.
+ * Here is code for platforms that don't have a thread safe
+ * getaddrinfo() nor gethostbyname_r() function or for which
+ * gethostbyname() is the preferred one.
*/
else {
- h = gethostbyname(hostname);
- if (!h)
- infof(data, "gethostbyname(2) failed for %s\n", hostname);
-#endif /*HAVE_GETHOSTBYNAME_R */
+ h = gethostbyname((void*)hostname);
+#endif /* HAVE_GETADDRINFO_THREADSAFE || HAVE_GETHOSTBYNAME_R */
}
if(h) {
ai = Curl_he2ai(h, port);
- if (h == buf) /* used a *_r() function */
- free(h);
+ if(buf) /* used a *_r() function */
+ free(buf);
}
return ai;
}
-
-#endif /* CURLRES_SYNCH */
-
-/*
- * Curl_he2ai() translates from a hostent struct to a Curl_addrinfo struct.
- * The Curl_addrinfo is meant to work like the addrinfo struct does for IPv6
- * stacks, but for all hosts and environments.
-
-struct Curl_addrinfo {
- int ai_flags;
- int ai_family;
- int ai_socktype;
- int ai_protocol;
- size_t ai_addrlen;
- struct sockaddr *ai_addr;
- char *ai_canonname;
- struct addrinfo *ai_next;
-};
-
-struct hostent {
- char *h_name; * official name of host *
- char **h_aliases; * alias list *
- int h_addrtype; * host address type *
- int h_length; * length of address *
- char **h_addr_list; * list of addresses *
-}
-#define h_addr h_addr_list[0] * for backward compatibility *
-
-*/
-
-Curl_addrinfo *Curl_he2ai(struct hostent *he, int port)
-{
- Curl_addrinfo *ai;
- Curl_addrinfo *prevai = NULL;
- Curl_addrinfo *firstai = NULL;
- struct sockaddr_in *addr;
- int i;
- struct in_addr *curr;
-
- if(!he)
- /* no input == no output! */
- return NULL;
-
- for(i=0; (curr = (struct in_addr *)he->h_addr_list[i]); i++) {
-
- ai = calloc(1, sizeof(Curl_addrinfo) + sizeof(struct sockaddr_in));
-
- if(!ai)
- break;
-
- if(!firstai)
- /* store the pointer we want to return from this function */
- firstai = ai;
-
- if(prevai)
- /* make the previous entry point to this */
- prevai->ai_next = ai;
-
- ai->ai_family = AF_INET; /* we only support this */
- ai->ai_socktype = SOCK_STREAM; /* we only support this */
- ai->ai_addrlen = sizeof(struct sockaddr_in);
- /* make the ai_addr point to the address immediately following this struct
- and use that area to store the address */
- ai->ai_addr = (struct sockaddr *) ((char*)ai + sizeof(Curl_addrinfo));
-
- /* leave the rest of the struct filled with zero */
-
- addr = (struct sockaddr_in *)ai->ai_addr; /* storage area for this info */
-
- memcpy((char *)&(addr->sin_addr), curr, sizeof(struct in_addr));
- addr->sin_family = he->h_addrtype;
- addr->sin_port = htons((unsigned short)port);
-
- prevai = ai;
- }
- return firstai;
-}
-
-#endif /* CURLRES_IPV4 */
+#endif /* defined(CURLRES_IPV4) && !defined(CURLRES_ARES) */
projects / platform / upstream / curl.git / blobdiff