X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=jbsockets.c;h=bcbd81837960712c7ab3a2af4f3b84218459b3fa;hp=a7a96b026db0033a151b18acb8ed394d048a83f2;hb=a26c085560f76d156994fd2fbcceaba58e14917b;hpb=00619c0638290f3bf3b9993afd5be7a61fc6749c

diff --git a/jbsockets.c b/jbsockets.c
index a7a96b02..bcbd8183 100644
--- a/jbsockets.c
+++ b/jbsockets.c
@@ -1,4 +1,4 @@
-const char jbsockets_rcs[] = "$Id: jbsockets.c,v 1.2 2001/05/17 23:01:01 oes Exp $";
+const char jbsockets_rcs[] = "$Id: jbsockets.c,v 1.9 2001/06/07 23:06:09 jongfoster Exp $";
 /*********************************************************************
  *
  * File        :  $Source: /cvsroot/ijbswa/current/jbsockets.c,v $
@@ -35,6 +35,29 @@ const char jbsockets_rcs[] = "$Id: jbsockets.c,v 1.2 2001/05/17 23:01:01 oes Exp
  *
  * Revisions   :
  *    $Log: jbsockets.c,v $
+ *    Revision 1.9  2001/06/07 23:06:09  jongfoster
+ *    The host parameter to connect_to() is now const.
+ *
+ *    Revision 1.8  2001/06/03 19:12:07  oes
+ *    filled comment
+ *
+ *    Revision 1.7  2001/05/28 16:14:00  jongfoster
+ *    Fixing bug in LOG_LEVEL_LOG
+ *
+ *    Revision 1.6  2001/05/26 17:28:32  jongfoster
+ *    Fixed LOG_LEVEL_LOG
+ *
+ *    Revision 1.5  2001/05/26 15:26:15  jongfoster
+ *    ACL feature now provides more security by immediately dropping
+ *    connections from untrusted hosts.
+ *
+ *    Revision 1.4  2001/05/26 00:37:42  jongfoster
+ *    Cosmetic indentation correction.
+ *
+ *    Revision 1.3  2001/05/25 21:57:54  jongfoster
+ *    Now gives a warning under Windows if you try to bind
+ *    it to a port that's already in use.
+ *
  *    Revision 1.2  2001/05/17 23:01:01  oes
  *     - Cleaned CRLF's from the sources and related files
  *
@@ -81,6 +104,7 @@ const char jbsockets_rcs[] = "$Id: jbsockets.c,v 1.2 2001/05/17 23:01:01 oes Exp
 #include "project.h"
 #include "jbsockets.h"
 #include "filters.h"
+#include "errlog.h"
 
 const char jbsockets_h_rcs[] = JBSOCKETS_H_VERSION;
 
@@ -101,7 +125,7 @@ const char jbsockets_h_rcs[] = JBSOCKETS_H_VERSION;
  * Returns     :  -1 => failure, else it is the socket file descriptor.
  *
  *********************************************************************/
-int connect_to(char *host, int portnum, struct client_state *csp)
+int connect_to(const char *host, int portnum, struct client_state *csp)
 {
    struct sockaddr_in inaddr;
    int   fd, addr;
@@ -112,24 +136,22 @@ int connect_to(char *host, int portnum, struct client_state *csp)
 #endif /* !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) */
 
 #ifdef ACL_FILES
-   struct access_control_addr src[1], dst[1];
+   struct access_control_addr dst[1];
 #endif /* def ACL_FILES */
 
    memset((char *)&inaddr, 0, sizeof inaddr);
 
    if ((addr = resolve_hostname_to_ip(host)) == -1)
    {
+	   csp->http->host_ip_addr_str = strdup("unknown");
       return(-1);
    }
 
 #ifdef ACL_FILES
-   src->addr = csp->ip_addr_long;
-   src->port = 0;
-
    dst->addr = ntohl(addr);
    dst->port = portnum;
 
-   if (block_acl(src, dst, csp))
+   if (block_acl(dst, csp))
    {
       errno = EPERM;
       return(-1);
@@ -138,6 +160,7 @@ int connect_to(char *host, int portnum, struct client_state *csp)
 
    inaddr.sin_addr.s_addr = addr;
    inaddr.sin_family      = AF_INET;
+   csp->http->host_ip_addr_str = strdup(inet_ntoa(inaddr.sin_addr));
 
    if (sizeof(inaddr.sin_port) == sizeof(short))
    {
@@ -222,17 +245,19 @@ int connect_to(char *host, int portnum, struct client_state *csp)
  *          2  :  buf = pointer to data to be written.
  *          3  :  len = length of data to be written to the socket "fd".
  *
- * Returns     :  Win32: If no error occurs, returns the total number of
+ * Returns     :  Win32 & Unix: If no error occurs, returns the total number of
  *                bytes sent, which can be less than the number
  *                indicated by len. Otherwise, returns (-1).
- *                Unix: ??? (Please fill me in!)
  *
  *********************************************************************/
 int write_socket(int fd, const char *buf, int len)
 {
-   if (len <= 0) return(0);
+   if (len <= 0)
+   {
+      return(0);
+   }
 
-   /* if (DEBUG(LOG)) fwrite(buf, n, 1, logfp); */
+   log_error(LOG_LEVEL_LOG, "%N", len, buf);
 
 #if defined(_WIN32) || defined(__BEOS__) || defined(AMIGA)
    return( send(fd, buf, len, 0));
@@ -408,9 +433,13 @@ int bind_port(const char *hostnam, int portnum)
  *********************************************************************/
 int accept_connection(struct client_state * csp, int fd)
 {
-   struct sockaddr raddr;
+   struct sockaddr raddr, laddr;
    struct sockaddr_in *rap = (struct sockaddr_in *) &raddr;
-   int   afd, raddrlen;
+   struct sockaddr_in *lap = (struct sockaddr_in *) &laddr;
+   struct hostent *host = NULL;
+   int   afd, raddrlen, laddrlen;
+   extern int h_errno;
+   char *p;
 
    raddrlen = sizeof raddr;
    do
@@ -423,6 +452,25 @@ int accept_connection(struct client_state * csp, int fd)
       return 0;
    }
 
+   /* 
+    * Determine the IP-Adress that the client used to reach us
+    * and the hostname associated with that address
+    */
+   if (!getsockname(afd, &laddr, &laddrlen))
+	{
+      csp->my_ip_addr_str = strdup(inet_ntoa(lap->sin_addr));
+
+      host = gethostbyaddr(laddr.sa_data + 2, 4, AF_INET);
+      if (host == NULL)
+      {
+         log_error(LOG_LEVEL_ERROR, "Unable to get my own hostname: %s\n", hstrerror(h_errno)); 
+      }
+      else
+	   {
+         csp->my_hostname = strdup(host->h_name);
+      }
+	}
+
    csp->cfd    = afd;
    csp->ip_addr_str  = strdup(inet_ntoa(rap->sin_addr));
    csp->ip_addr_long = ntohl(rap->sin_addr.s_addr);