-const char jbsockets_rcs[] = "$Id: jbsockets.c,v 1.141 2017/05/25 11:17:29 fabiankeil Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/jbsockets.c,v $
*
* Purpose : Contains wrappers for system-specific sockets code,
- * so that the rest of Junkbuster can be more
+ * so that the rest of Privoxy can be more
* OS-independent. Contains #ifdefs to make this work
* on many platforms.
*
* Copyright : Written by and Copyright (C) 2001-2017 the
- * Privoxy team. http://www.privoxy.org/
+ * Privoxy team. https://www.privoxy.org/
*
* Based on the Internet Junkbuster originally written
* by and Copyright (C) 1997 Anonymous Coders and
#else
-#ifndef __OS2__
#include <unistd.h>
-#endif
#include <sys/time.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#ifndef __BEOS__
#include <netinet/tcp.h>
-#ifndef __OS2__
#include <arpa/inet.h>
-#endif
#else
#include <socket.h>
#endif
-#if defined(__EMX__) || defined (__OS2__)
-#include <sys/select.h> /* OS/2/EMX needs a little help with select */
-#ifdef __OS2__
-#include <nerrno.h>
-#endif
-#endif
-
#endif
#ifdef HAVE_POLL
#define AI_NUMERICSERV 0
#endif
-const char jbsockets_h_rcs[] = JBSOCKETS_H_VERSION;
-
/*
* Maximum number of gethostbyname(_r) retries in case of
* soft errors (TRY_AGAIN).
*/
#define MAX_DNS_RETRIES 10
-#define MAX_LISTEN_BACKLOG 128
-
#ifdef HAVE_RFC2553
static jb_socket rfc2553_connect_to(const char *host, int portnum, struct client_state *csp);
#else
*
* Function : set_no_delay_flag
*
- * Description : Disables TCP coalescence for the given socket.
+ * Description : Disables the Nagle algorithm (TCP send coalescence)
+ * for the given socket.
*
* Parameters :
* 1 : fd = The file descriptor to operate on
fd_set wfds;
struct timeval timeout;
#endif
-#if !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__)
+#if !defined(_WIN32) && !defined(__BEOS__)
int flags;
#endif
int connect_failed;
/*
- * XXX: Initializeing it here is only necessary
+ * XXX: Initializing it here is only necessary
* because not all situations are properly
* covered yet.
*/
{
log_error(LOG_LEVEL_INFO,
"Can not resolve %s: %s", host, gai_strerror(retval));
- /* XXX: Should find a better way to propagate this error. */
- errno = EINVAL;
csp->error_message = strdup(gai_strerror(retval));
csp->http->host_ip_addr_str = strdup("unknown");
+ /* XXX: Should find a better way to propagate this error. */
+ errno = EINVAL;
return(JB_INVALID_SOCKET);
}
if (block_acl(dst, csp))
{
-#ifdef __OS2__
- socket_error = errno = SOCEPERM;
-#else
socket_error = errno = EPERM;
-#endif
continue;
}
#endif /* def FEATURE_ACL */
set_no_delay_flag(fd);
-#if !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__)
+#if !defined(_WIN32) && !defined(__BEOS__)
if ((flags = fcntl(fd, F_GETFL, 0)) != -1)
{
flags |= O_NDELAY;
fcntl(fd, F_SETFL, flags);
}
-#endif /* !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__) */
+#endif /* !defined(_WIN32) && !defined(__BEOS__) */
connect_failed = 0;
while (connect(fd, rp->ai_addr, rp->ai_addrlen) == JB_INVALID_SOCKET)
{
-#ifdef __OS2__
- errno = sock_errno();
-#endif /* __OS2__ */
-
#ifdef _WIN32
if (errno == WSAEINPROGRESS)
#else /* ifndef _WIN32 */
if (errno == EINPROGRESS)
-#endif /* ndef _WIN32 || __OS2__ */
+#endif /* ndef _WIN32 */
{
break;
}
continue;
}
-#if !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__)
+#if !defined(_WIN32) && !defined(__BEOS__)
if (flags != -1)
{
flags &= ~O_NDELAY;
fcntl(fd, F_SETFL, flags);
}
-#endif /* !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__) */
+#endif /* !defined(_WIN32) && !defined(__BEOS__) */
#ifdef HAVE_POLL
- poll_fd[0].fd = fd;
- poll_fd[0].events = POLLOUT;
+ poll_fd[0].fd = fd;
+ poll_fd[0].events = POLLOUT;
- if (poll(poll_fd, 1, 30000) > 0)
+ retval = poll(poll_fd, 1, 30000);
+ if (retval == 0)
+ {
+ if (rp->ai_next != NULL)
+ {
+ /* Log this now as we'll try another address next */
+ log_error(LOG_LEVEL_CONNECT,
+ "Could not connect to [%s]:%s: Operation timed out.",
+ csp->http->host_ip_addr_str, service);
+ }
+ else
+ {
+ /*
+ * This is the last address, don't log this now
+ * as it would result in a duplicated log message.
+ */
+ socket_error = ETIMEDOUT;
+ }
+ }
+ else if (retval > 0)
#else
/* wait for connection to complete */
FD_ZERO(&wfds);
fd_set wfds;
struct timeval tv[1];
#endif
-#if !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__)
+#if !defined(_WIN32) && !defined(__BEOS__)
int flags;
#endif
if (block_acl(dst, csp))
{
-#ifdef __OS2__
- errno = SOCEPERM;
-#else
errno = EPERM;
-#endif
return(JB_INVALID_SOCKET);
}
#endif /* def FEATURE_ACL */
set_no_delay_flag(fd);
-#if !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__)
+#if !defined(_WIN32) && !defined(__BEOS__)
if ((flags = fcntl(fd, F_GETFL, 0)) != -1)
{
flags |= O_NDELAY;
mark_socket_for_close_on_execute(fd);
#endif
}
-#endif /* !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__) */
+#endif /* !defined(_WIN32) && !defined(__BEOS__) */
while (connect(fd, (struct sockaddr *) & inaddr, sizeof inaddr) == JB_INVALID_SOCKET)
{
#ifdef _WIN32
if (errno == WSAEINPROGRESS)
-#elif __OS2__
- if (sock_errno() == EINPROGRESS)
#else /* ifndef _WIN32 */
if (errno == EINPROGRESS)
-#endif /* ndef _WIN32 || __OS2__ */
+#endif /* ndef _WIN32 */
{
break;
}
-#ifdef __OS2__
- if (sock_errno() != EINTR)
-#else
if (errno != EINTR)
-#endif /* __OS2__ */
{
close_socket(fd);
return(JB_INVALID_SOCKET);
}
}
-#if !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__)
+#if !defined(_WIN32) && !defined(__BEOS__)
if (flags != -1)
{
flags &= ~O_NDELAY;
fcntl(fd, F_SETFL, flags);
}
-#endif /* !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) && !defined(__OS2__) */
+#endif /* !defined(_WIN32) && !defined(__BEOS__) */
#ifdef HAVE_POLL
poll_fd[0].fd = fd;
* nonzero on error.
*
*********************************************************************/
-#ifdef AMIGA
-int write_socket(jb_socket fd, const char *buf, ssize_t len)
-#else
int write_socket(jb_socket fd, const char *buf, size_t len)
-#endif
{
if (len == 0)
{
#if defined(_WIN32)
return (send(fd, buf, (int)len, 0) != (int)len);
-#elif defined(__BEOS__) || defined(AMIGA)
+#elif defined(__BEOS__)
return (send(fd, buf, len, 0) != len);
-#elif defined(__OS2__)
- /*
- * Break the data up into SOCKET_SEND_MAX chunks for sending...
- * OS/2 seemed to complain when the chunks were too large.
- */
-#define SOCKET_SEND_MAX 65000
+#else
+ return (write(fd, buf, len) != len);
+#endif
+
+}
+
+
+/*********************************************************************
+ *
+ * Function : write_socket_delayed
+ *
+ * Description : Write the contents of buf (for n bytes) to
+ * socket fd, optionally delaying the operation.
+ *
+ * Parameters :
+ * 1 : fd = File descriptor (aka. handle) of socket to write to.
+ * 2 : buf = Pointer to data to be written.
+ * 3 : len = Length of data to be written to the socket "fd".
+ * 4 : delay = Delay in milliseconds.
+ *
+ * Returns : 0 on success (entire buffer sent).
+ * nonzero on error.
+ *
+ *********************************************************************/
+int write_socket_delayed(jb_socket fd, const char *buf, size_t len, unsigned int delay)
+{
+ size_t i = 0;
+
+ if (delay == 0)
+ {
+ return write_socket(fd, buf, len);
+ }
+
+ while (i < len)
{
- int send_len, send_rc = 0, i = 0;
- while ((i < len) && (send_rc != -1))
+ size_t write_length;
+ enum {MAX_WRITE_LENGTH = 10};
+
+ if ((i + MAX_WRITE_LENGTH) > len)
{
- if ((i + SOCKET_SEND_MAX) > len)
- send_len = len - i;
- else
- send_len = SOCKET_SEND_MAX;
- send_rc = send(fd,(char*)buf + i, send_len, 0);
- if (send_rc == -1)
- return 1;
- i = i + send_len;
+ write_length = len - i;
}
- return 0;
+ else
+ {
+ write_length = MAX_WRITE_LENGTH;
+ }
+
+ privoxy_millisleep(delay);
+
+ if (write_socket(fd, buf + i, write_length) != 0)
+ {
+ return 1;
+ }
+ i += write_length;
}
-#else
- return (write(fd, buf, len) != len);
-#endif
+
+ return 0;
}
#if defined(_WIN32)
ret = recv(fd, buf, len, 0);
-#elif defined(__BEOS__) || defined(AMIGA) || defined(__OS2__)
+#elif defined(__BEOS__)
ret = recv(fd, buf, (size_t)len, 0);
#else
ret = (int)read(fd, buf, (size_t)len);
memset(&timeout, 0, sizeof(timeout));
timeout.tv_sec = seconds_to_wait;
-#ifdef __OS2__
- /* Copy and pasted from jcc.c ... */
- memset(&rfds, 0, sizeof(fd_set));
-#else
FD_ZERO(&rfds);
-#endif
FD_SET(fd, &rfds);
n = select(fd+1, &rfds, NULL, NULL, &timeout);
{
#if defined(_WIN32) || defined(__BEOS__)
closesocket(fd);
-#elif defined(AMIGA)
- CloseSocket(fd);
-#elif defined(__OS2__)
- soclose(fd);
#else
close(fd);
#endif
* Parameters :
* 1 : hostnam = TCP/IP address to bind/listen to
* 2 : portnum = port to listen on
- * 3 : pfd = pointer used to return file descriptor.
+ * 3 : backlog = Listen backlog
+ * 4 : pfd = pointer used to return file descriptor.
*
* Returns : if success, returns 0 and sets *pfd.
* if failure, returns -3 if address is in use,
* -2 if address unresolvable,
* -1 otherwise
*********************************************************************/
-int bind_port(const char *hostnam, int portnum, jb_socket *pfd)
+int bind_port(const char *hostnam, int portnum, int backlog, jb_socket *pfd)
{
#ifdef HAVE_RFC2553
struct addrinfo hints;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&one, sizeof(one));
#endif /* ndef _WIN32 */
+#ifdef IP_FREEBIND
+ setsockopt(fd, IPPROTO_IP, IP_FREEBIND, (char *)&one, sizeof(one));
+#endif
+
#ifdef HAVE_RFC2553
if (bind(fd, rp->ai_addr, rp->ai_addrlen) < 0)
#else
}
#endif /* ndef HAVE_RFC2553 */
- while (listen(fd, MAX_LISTEN_BACKLOG) == -1)
+ while (listen(fd, backlog) == -1)
{
if (errno != EINTR)
{
struct sockaddr_in server;
struct hostent *host = NULL;
#endif /* HAVE_RFC2553 */
-#if defined(_WIN32) || defined(__OS2__) || defined(AMIGA)
+#if defined(_WIN32)
/* according to accept_connection() this fixes a warning. */
int s_length, s_length_provided;
#else
struct sockaddr_in client;
#endif
jb_socket afd;
-#if defined(_WIN32) || defined(__OS2__) || defined(AMIGA)
- /* Wierdness - fix a warning. */
+#if defined(_WIN32)
+ /* Weirdness - fix a warning. */
int c_length;
#else
socklen_t c_length;
#else
do
{
-#if defined(FEATURE_ACCEPT_FILTER) && defined(SO_ACCEPTFILTER)
- struct accept_filter_arg af_options;
- bzero(&af_options, sizeof(af_options));
- strlcpy(af_options.af_name, "httpready", sizeof(af_options.af_name));
- setsockopt(fd, SOL_SOCKET, SO_ACCEPTFILTER, &af_options, sizeof(af_options));
-#endif
afd = accept (fd, (struct sockaddr *) &client, &c_length);
} while (afd < 0 && errno == EINTR);
if (afd < 0)
{
log_error(LOG_LEVEL_ERROR,
"Server name (%s) and port number (%d) ASCII decimal representation"
- "don't fit into %d bytes",
+ "don't fit into %lu bytes",
host_addr, csp->config->hport[i], listen_addr_size);
return 0;
}
projects / privoxy.git / blobdiff