7.6.1-pre3

win32 systems

CHANGES

@@ -5,6 +5,104 @@
                              \___|\___/|_| \_\_____|
 
                                History of Changes
+
+
+Daniel (7 February 2001)
+- SM found a flaw in the response reading function for FTP that could make
+  libcurl not get out of the loop properly when it should, if libcurl got -1
+  returned when reading the socket.
+
+- I found a similar mistake in http.c when using a proxy and reading the
+  results from the proxy connection.
+
+Daniel (6 February 2001)
+- A friendly person named "SM" (nntp at iname.com) pointed out that the VC
+  makefile in src/ needed the libpath set for the debug build to work.
+
+- Daniel Gehriger stepped in to assist with the VC++ stuff Robert Weaver
+  brought up yesterday.
+
+Daniel (5 February 2001)
+- Jun-ichiro itojun Hagino brought a big patch that brings IPv6-awareness to
+  a bunch of different areas within libcurl.
+
+- Robert Weaver told me about the problems the MS VC++ 6.0 compiler has with
+  the 'static' keyword on a number of libcurl functions. I might need to add a
+  patch that redefines static when libcurl is compiled with that compiler.
+  How do I know when VC++ compiles, anyone?
+
+Daniel (4 February 2001)
+- curl_getinfo() was extended with two new options:
+  CURLINFO_CONTENT_LENGTH_DOWNLOAD and CURLINFO_CONTENT_LENGTH_UPLOAD. They
+  return the full assumed content length of the transfer in the given
+  direction. The CURLINFO_CONTENT_LENGTH_DOWNLOAD will be the Content-Length:
+  size of a HTTP download. Added descriptions to the man page as well. This
+  was done after discussions with Bob Schader.
+
+Daniel (3 February 2001)
+- Ingo Ralf Blum provided another fix that makes curl build under the more
+  recent cygwin installations. It seems they've changed the preset defines to
+  not include WIN32 anymore.
+
+Version 7.6.1-pre2
+
+Daniel (31 January 2001)
+- Curl_read() and curl_read() now return a ssize_t for the size, as it had to
+  be able to return -1. The telnet support crashed due to this and there was a
+  possibility to weird behaviour all over. Linus Nielsen Feltzing helped me
+  find this.
+
+- Added a configure.in check for a working getaddrinfo() if IPv6 is requested.
+  I also made the configure script feature --enable-debug which sets a couple
+  of compiler options when used. It assumes gcc.
+
+Daniel (30 January 2001)
+- I finally took a stab at the long-term FIXME item I've had on myself, and
+  now libcurl will properly work when doing a HTTP range-request that follows
+  a Location:. Previously that would make libcurl fail saying that the server
+  doesn't seem to support range requests.
+
+Daniel (29 January 2001)
+- I added a test case for the HTTP PUT resume thing (test case 33).
+
+Version 7.6.1-pre1
+
+Daniel (29 January 2001)
+- Yet another Content-Range change. Ok now? Bob Schader checks from his end 
+  and it works for him.
+
+Daniel (27 January 2001)
+- So the HTTP PUT resume fix wasn't good. There should appearantly be a
+  Content-Range header when resuming a PUT.
+
+- I noticed I broke the download-check that verifies that a resumed HTTP
+  download is actually resumed. It got broke because my new 'httpreq' field
+  in the main curl struct. I should get slapped. I added a test case for
+  this now, so I won't be able to ruin this again without noticing.
+
+- Added a test case for content-length verifying when downloading HTTP.
+
+- Made the progress meter title say if the transfer is being transfered. It
+  makes the output slightly better for resumes.
+
+- When dealing with Location: and HTTP return codes, libcurl will not attempt
+  to follow the spirit of RFC2616 better. It means that when POSTing to a
+  URL that is being following to a second place, the standard will judge on
+  what to do. All HTTP codes except 303 and 305 will cause curl to make a
+  second POST operation. 303 will make a GET and 305 is not yet supported.
+
+  I also wrote two test cases for this POST/GET/Location stuff.
+
+Version 7.6
+
+Daniel (26 January 2001)
+- Lots of mails back and forth with Bob Schader finally made me add a small
+  piece of code in the HTTP engine so that HTTP upload resume works. You can
+  now do an operation like 'curl -T file -C <offset> <URL>' and curl will PUT
+  the ending part of the file starting at given offet to the specified URL.
+
+Version 7.6-pre4
+
 Daniel (25 January 2001)
 - I took hold of Rick Jones' question why we don't use recv() and send() for
   reading/writing to the sockets and I've now modified the sread() and

acconfig.h

@@ -39,3 +39,7 @@
 
 /* Define if you want to enable IPv6 support */
 #undef ENABLE_IPV6
+
+/* Define this to 'int' if ssize_t is not an available typedefed type */
+#undef ssize_t
+

config-win32.h

@@ -23,6 +23,9 @@
 /* Define to `unsigned' if <sys/types.h> doesn't define.  */
 /* #undef size_t */
 
+/* Define this to 'int' if ssize_t is not an available typedefed type */
+#define ssize_t int
+
 /* Define if you have the ANSI C header files.  */
 #define STDC_HEADERS 1
 

configure.in

@@ -26,6 +26,66 @@ dnl The install stuff has already been taken care of by the automake stuff
 dnl AC_PROG_INSTALL
 AC_PROG_MAKE_SET
 
+dnl ************************************************************
+dnl lame option to switch on debug options
+dnl
+AC_MSG_CHECKING([whether to enable debug options])
+AC_ARG_ENABLE(debug,
+[  --enable-debug		Enable pedantic debug options
+  --disable-debug		Disable debug options],
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       ;;
+  *)   AC_MSG_RESULT(yes)
+
+    CPPFLAGS="$CPPFLAGS -DMALLOCDEBUG"
+    CFLAGS="-Wall -pedantic -g" 
+       ;;
+  esac ],
+       AC_MSG_RESULT(no)
+)
+
+
+dnl
+dnl check for working getaddrinfo()
+dnl
+AC_DEFUN(CURL_CHECK_WORKING_GETADDRINFO,[
+  AC_CACHE_CHECK(for working getaddrinfo, ac_cv_working_getaddrinfo,[
+  AC_TRY_RUN( [
+#include <netdb.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+void main(void) {
+    struct addrinfo hints, *ai;
+    int error;
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    error = getaddrinfo("127.0.0.1", "8080", &hints, &ai);
+    if (error) {
+        exit(1);
+    }
+    else {
+        exit(0);
+    }
+}
+],[
+  ac_cv_working_getaddrinfo="yes"
+],[
+  ac_cv_working_getaddrinfo="no"
+],[
+  ac_cv_working_getaddrinfo="yes"
+])])
+if test "$ac_cv_working_getaddrinfo" = "yes"; then
+  AC_DEFINE(HAVE_GETADDRINFO, 1, [Define if getaddrinfo exists and works])
+  AC_DEFINE(ENABLE_IPV6, 1, [Define if you want to enable IPv6 support])
+fi
+])
+
+
 AC_DEFUN(CURL_CHECK_LOCALTIME_R,
 [
   dnl check for a few thread-safe functions
@@ -251,7 +311,6 @@ AC_ARG_ENABLE(ipv6,
        ipv6=no
        ;;
   *)   AC_MSG_RESULT(yes)
-       AC_DEFINE(ENABLE_IPV6)
        ipv6=yes
        ;;
   esac ],
@@ -268,7 +327,6 @@ main()
 }
 ],
   AC_MSG_RESULT(yes)
-  AC_DEFINE(ENABLE_IPV6)
   ipv6=yes,
   AC_MSG_RESULT(no)
   ipv6=no,
@@ -276,6 +334,11 @@ main()
   ipv6=no
 ))
 
+if test "$ipv6" = "yes"; then
+  CURL_CHECK_WORKING_GETADDRINFO
+fi
+
+
 dnl **********************************************************************
 dnl Checks for libraries.
 dnl **********************************************************************
@@ -365,6 +428,10 @@ AC_MSG_CHECKING([if Kerberos4 support is requested])
 
 if test "$want_krb4" = yes
 then
+  if test "$ipv6" = "yes"; then
+    echo krb4 is not compatible with IPv6
+    exit 1
+  fi
   AC_MSG_RESULT(yes)
 
   dnl Check for & handle argument to --with-krb4
@@ -592,6 +659,9 @@ AC_CHECK_SIZEOF(long double, 8)
 # check for 'long long'
 AC_CHECK_SIZEOF(long long, 4)
 
+# check for ssize_t
+AC_CHECK_TYPE(ssize_t, int)
+
 dnl Get system canonical name
 AC_CANONICAL_HOST
 AC_DEFINE_UNQUOTED(OS, "${host}")
@@ -622,7 +692,8 @@ AC_CHECK_FUNCS( socket \
                 setvbuf \
                 sigaction \
                 signal \
-                getpass_r
+                getpass_r \
+                strlcat
 )
 
 dnl removed 'getpass' check on October 26, 2000

docs/FAQ

@@ -1,4 +1,4 @@
-Updated: January 22, 2001 (http://curl.haxx.se/docs/faq.shtml)
+Updated: February 2, 2001 (http://curl.haxx.se/docs/faq.shtml)
                                   _   _ ____  _     
                               ___| | | |  _ \| |    
                              / __| | | | |_) | |    
@@ -30,6 +30,7 @@ FAQ
   3.6 Does curl support javascript, ASP, XML, XHTML or HTML version Y?
   3.7 Can I use curl to delete/rename a file through FTP?
   3.8 How do I tell curl to follow HTTP redirects?
+  3.9 How do I use curl in PHP?
 
  4. Running Problems
   4.1 Problems connecting to SSL servers.
@@ -52,7 +53,8 @@ FAQ
   5.2 How can I receive all data into a large memory chunk?
   5.3 How do I fetch multiple files with libcurl?
   5.4 Does libcurl do Winsock initing on win32 systems?
-  5.5 Does CURLOPT_FILE work on win32 ?
+  5.5 Does CURLOPT_FILE and CURLOPT_INFILE work on win32 ?
+  5.6 What about Keep-Alive or persistant connections?
 
  6. License Issues
   6.1 I have a GPL program, can I use the libcurl library?
@@ -279,6 +281,19 @@ FAQ
 
      curl -L http://redirector.com
 
+  3.9 How do I use curl in PHP?
+
+  PHP4 has the ability to use libcurl as an internal module if built with that
+  option enabled. You then get a set of extra functions that can be used
+  within your PHP programs. You find all details about those functions in the
+  curl section in the PHP manual, see the online version at:
+
+        http://www.php.net/manual/ref.curl.php
+
+  PHP also offers the option to run a command line, and then you can of course
+  invoke the curl tool using a command line. This is the way to use curl if
+  you're using PHP3 or PHP4 built without curl module support.
+
 4. Running Problems
 
   4.1. Problems connecting to SSL servers.
@@ -310,6 +325,9 @@ FAQ
   In win32, the standard DOS shell treats the %-letter specially and you may
   need to quote the string properly when % is used in it.
 
+  Also note that if you want the literal %-letter to be part of the data you
+  pass in a POST using -d/--data you must encode it as '%25'.
+
   4.3. How can I use {, }, [ or ] to specify multiple URLs?
 
   Because those letters have a special meaning to the shell, and to be used in
@@ -473,14 +491,24 @@ FAQ
   use several different libraries and parts, and there's no reason for every
   single library to do this.
 
-  5.5 Does CURLOPT_FILE work on win32 ?
+  5.5 Does CURLOPT_FILE and CURLOPT_INFILE work on win32 ?
 
   Yes, but you cannot open a FILE * and pass the pointer to a DLL and have
-  that DLL use the FILE *. You must use CURLOPT_WRITEFUNCTION as well to set a
-  function that writes the file, even if that simply writes the data to the
-  specified FILE*.
+  that DLL use the FILE *. If you set CURLOPT_FILE you must also use
+  CURLOPT_WRITEFUNCTION as well to set a function that writes the file, even
+  if that simply writes the data to the specified FILE*. Similarly, if you use
+  CURLOPT_INFILE you must also specify CURLOPT_READFUNCTION.
 
-  (provided by Joel DeYoung)
+  (Provided by Joel DeYoung and Bob Schader)
+
+  5.6 What about Keep-Alive or persistant connections?
+
+  This is closely related to issue 5.3. Since libcurl has no real support
+  for doing multiple file transfers, there's no support for Keep-Alive or
+  persistant connections either.
+
+  This is of course subject to change as soon as libcurl gets support for
+  multiple files. Feel free to join in and make this change happen sooner!
 
 6. License Issues
 

docs/INSTALL

@@ -84,9 +84,10 @@ UNIX
 
    KNOWN PROBLEMS
 
-     If you happen to have autoconf installed, but a version older than
-     2.12 you will get into trouble. Then you can still build curl by
-     issuing these commands: (from Ralph Beckmann)
+     If you happen to have autoconf installed, but a version older than 2.12
+     you will get into trouble. Then you can still build curl by issuing these
+     commands (note that this requires curl to be built staticly): (from Ralph
+     Beckmann)
 
        ./configure [...]
        cd lib; make; cd ..
@@ -139,6 +140,14 @@ UNIX
 
        ./configure --with-krb4=/usr/athena
 
+     If your system support shared libraries, but you want to built a static
+     version only, you can disable building the shared version by using:
+
+       ./configure --disable-shared
+
+     If you're a curl developer and use gcc, you might want to enable more
+     debug options with the --enable-debug option.
+
 Win32
 =====
  

docs/INTERNALS

@@ -1,3 +1,4 @@
+                                     Updated for curl 7.6 on January 26, 2001
                                   _   _ ____  _     
                               ___| | | |  _ \| |    
                              / __| | | | |_) | |    
@@ -12,13 +13,6 @@ INTERNALS
 
  Thus, the largest amount of code and complexity is in the library part.
 
-SYMBOLS
-=======
- All symbols used internally must use a 'Curl_' prefix if they're used in more
- than a single file. Single-file symbols must be made static. Public
- (exported) symbols must use a 'curl_' prefix. (There are exceptions, but they
- are destined to be changed to follow this pattern in the future.)
-
 CVS
 ===
  All changes to the sources are committed to the CVS repository as soon as
@@ -35,10 +29,11 @@ Windows vs Unix
  There are a few differences in how to program curl the unix way compared to
  the Windows way. The four perhaps most notable details are:
 
- 1. Different function names for close(), read(), write()
+ 1. Different function names for socket operations.
 
    In curl, this is solved with defines and macros, so that the source looks
-   the same at all places except for the header file that defines them.
+   the same at all places except for the header file that defines them. The
+   macros in use are sclose(), sread() and swrite().
 
  2. Windows requires a couple of init calls for the socket stuff
 
@@ -187,6 +182,15 @@ Library
  exists in lib/getpass.c. libcurl offers a custom callback that can be used
  instead of this, but it doesn't change much to us.
 
+Library Symbols
+===============
+ 
+ All symbols used internally in libcurl must use a 'Curl_' prefix if they're
+ used in more than a single file. Single-file symbols must be made
+ static. Public (exported) symbols must use a 'curl_' prefix. (There are
+ exceptions, but they are destined to be changed to follow this pattern in the
+ future.)
+
 Return Codes and Informationals
 ===============================
 

docs/MANUAL

@@ -726,6 +726,25 @@ KERBEROS4 FTP TRANSFER
   There's no use for a password on the -u switch, but a blank one will make
   curl ask for one and you already entered the real password to kauth.
 
+TELNET
+
+  The curl telnet support is basic and very easy to use. Curl passes all data
+  passed to it on stdin to the remote server. Connect to a remote telnet
+  server using a command line similar to:
+
+        curl telnet://remote.server.com
+
+  And enter the data to pass to the server on stdin. The result will be sent
+  to stdout or to the file you specify with -o.
+
+  You might want the -N/--no-buffer option to switch off the buffered output
+  for slow connections or similar.
+
+  NOTE: the telnet protocol does not specify any way to login with a specified
+  user and password so curl can't do that automatically. To do that, you need
+  to track when the login prompt is received and send the username and
+  password accordingly.
+
 MAILING LIST
 
   We have an open mailing list to discuss curl, its development and things

docs/curl.1

@@ -788,6 +788,7 @@ If you do find bugs, mail them to curl-bug@haxx.se.
  - Loic Dachary <loic@senga.org>
  - Robert Weaver <robert.weaver@sabre.com>
  - Ingo Ralf Blum <ingoralfblum@ingoralfblum.com>
+ - Jun-ichiro itojun Hagino <itojun@iijlab.net>
 
 .SH WWW
 http://curl.haxx.se

docs/curl_easy_getinfo.3

@@ -2,7 +2,7 @@
 .\" nroff -man [file]
 .\" Written by daniel@haxx.se
 .\"
-.TH curl_easy_init 3 "22 November 2000" "Curl 7.5" "libcurl Manual"
+.TH curl_easy_init 3 "4 February 2001" "Curl 7.6.1" "libcurl Manual"
 .SH NAME
 curl_easy_getinfo - Extract information from a curl session (added in 7.4)
 .SH SYNOPSIS
@@ -81,6 +81,14 @@ than one request if FOLLOWLOCATION is true.
 Pass a pointer to a long to receive the result of the certification
 verification that was requested (using the CURLOPT_SSL_VERIFYPEER option to
 curl_easy_setopt). (Added in 7.4.2)
+.TP
+.B CURLINFO_CONTENT_LENGTH_DOWNLOAD
+Pass a pointer to a double to receive the content-length of the download.
+(Added in 7.6.1)
+.TP
+.B CURLINFO_CONTENT_LENGTH_UPLOAD
+Pass a pointer to a double to receive the specified size of the upload.
+(Added in 7.6.1)
 .PP
 
 .SH RETURN VALUE

docs/curl_easy_setopt.3

@@ -2,7 +2,7 @@
 .\" nroff -man [file]
 .\" Written by daniel@haxx.se
 .\"
-.TH curl_easy_setopt 3 "28 November 2000" "Curl 7.5" "libcurl Manual"
+.TH curl_easy_setopt 3 "2 February 2001" "Curl 7.5" "libcurl Manual"
 .SH NAME
 curl_easy_setopt - Set curl easy-session options
 .SH SYNOPSIS
@@ -35,6 +35,12 @@ Data pointer to pass instead of FILE * to the file write function. Note that
 if you specify the
 .I CURLOPT_WRITEFUNCTION
 , this is the pointer you'll get as input.
+
+NOTE: If you're using libcurl as a win32 .DLL, you MUST use a
+.I CURLOPT_WRITEFUNCTION
+if you set the
+.I CURLOPT_FILE
+option.
 .TP
 .B CURLOPT_WRITEFUNCTION
 Function pointer that should use match the following prototype:
@@ -53,6 +59,12 @@ Data pointer to pass instead of FILE * to the file read function. Note that if
 you specify the
 .I CURLOPT_READFUNCTION
 , this is the pointer you'll get as input.
+
+NOTE: If you're using libcurl as a win32 .DLL, you MUST use a
+.I CURLOPT_READFUNCTION
+if you set the
+.I CURLOPT_INFILE
+option.
 .TP
 .B CURLOPT_READFUNCTION
 Function pointer that should use match the following prototype:

include/curl/curl.h

@@ -452,8 +452,8 @@ char *curl_getenv(char *variable);
 char *curl_version(void);
 
 /* This is the version number */
-#define LIBCURL_VERSION "7.6-pre4"
-#define LIBCURL_VERSION_NUM 0x070600
+#define LIBCURL_VERSION "7.6.1-pre3"
+#define LIBCURL_VERSION_NUM 0x070601
 
 /* linked-list structure for the CURLOPT_QUOTE option (and other) */
 struct curl_slist {
@@ -554,7 +554,7 @@ CURLcode curl_setopt(CURL *handle, CURLoption option, ...);
 CURLcode curl_close(CURL *curl); /* the opposite of curl_open() */
 
 CURLcode curl_read(CURLconnect *c_conn, char *buf, size_t buffersize,
-                   size_t *n);
+                   ssize_t *n);
 CURLcode curl_write(CURLconnect *c_conn, char *buf, size_t amount,
                     size_t *n);
 
@@ -676,7 +676,10 @@ typedef enum {
   CURLINFO_SSL_VERIFYRESULT = CURLINFO_LONG   + 13,
   CURLINFO_FILETIME         = CURLINFO_LONG   + 14,
 
-  CURLINFO_LASTONE          = 15
+  CURLINFO_CONTENT_LENGTH_DOWNLOAD   = CURLINFO_DOUBLE + 15,
+  CURLINFO_CONTENT_LENGTH_UPLOAD     = CURLINFO_DOUBLE + 16,
+
+  CURLINFO_LASTONE          = 17
 } CURLINFO;
 
 /*

lib/ftp.c

@@ -221,7 +221,7 @@ int Curl_GetFTPResponse(int sockfd, char *buf,
                         int *ftpcode)
 {
   int nread;
-  size_t keepon=TRUE;
+  ssize_t keepon=TRUE;
   char *ptr;
   int timeout = 3600; /* in seconds */
   struct timeval interval;
@@ -282,6 +282,8 @@ int Curl_GetFTPResponse(int sockfd, char *buf,
          */
         if(CURLE_OK != Curl_read(conn, sockfd, ptr, 1, &keepon))
           keepon = FALSE;
+        else if(keepon < 0)
+          error = SELECT_ERROR;
         else if ((*ptr == '\n') || (*ptr == '\r'))
           keepon = FALSE;
       }
@@ -564,6 +566,9 @@ CURLcode _ftp(struct connectdata *conn)
 #if defined (HAVE_INET_NTOA_R)
   char ntoa_buf[64];
 #endif
+#ifdef ENABLE_IPV6
+  struct addrinfo *ai;
+#endif
 
   struct curl_slist *qitem; /* QUOTE item */
   /* the ftp struct is already inited in ftp_connect() */
@@ -702,6 +707,178 @@ CURLcode _ftp(struct connectdata *conn)
 
   /* We have chosen to use the PORT command */
   if(data->bits.ftp_use_port) {
+#ifdef ENABLE_IPV6
+    struct addrinfo hints, *res, *ai;
+    struct sockaddr_storage ss;
+    int sslen;
+    char hbuf[NI_MAXHOST];
+    char *localaddr;
+    struct sockaddr *sa=(struct sockaddr *)&ss;
+#ifdef NI_WITHSCOPEID
+    const int niflags = NI_NUMERICHOST | NI_NUMERICSERV | NI_WITHSCOPEID;
+#else
+    const int niflags = NI_NUMERICHOST | NI_NUMERICSERV;
+#endif
+    unsigned char *ap;
+    unsigned char *pp;
+    int alen, plen;
+    char portmsgbuf[4096], tmp[4096];
+    char *p;
+    char *mode[] = { "EPRT", "LPRT", "PORT", NULL };
+    char **modep;
+
+    /*
+     * we should use Curl_if2ip?  given pickiness of recent ftpd,
+     * I believe we should use the same address as the control connection.
+     */
+    sslen = sizeof(ss);
+    if (getsockname(data->firstsocket, (struct sockaddr *)&ss, &sslen) < 0)
+      return CURLE_FTP_PORT_FAILED;
+
+    if (getnameinfo((struct sockaddr *)&ss, sslen, hbuf, sizeof(hbuf), NULL, 0,
+	niflags))
+      return CURLE_FTP_PORT_FAILED;
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = sa->sa_family;
+    /*hints.ai_family = ss.ss_family;
+      this way can be used if sockaddr_storage is properly defined, as glibc 
+      2.1.X doesn't do*/
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_flags = AI_PASSIVE;
+    if (getaddrinfo(hbuf, "0", &hints, &res))
+      return CURLE_FTP_PORT_FAILED;
+
+    portsock = -1;
+    for (ai = res; ai; ai = ai->ai_next) {
+      portsock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+      if (portsock < 0)
+	continue;
+
+      if (bind(portsock, ai->ai_addr, ai->ai_addrlen) < 0) {
+	close(portsock);
+	portsock = -1;
+	continue;
+      }
+
+      if (listen(portsock, 1) < 0) {
+	close(portsock);
+	portsock = -1;
+	continue;
+      }
+
+      break;
+    }
+    if (portsock < 0) {
+      failf(data, strerror(errno));
+      freeaddrinfo(res);
+      return CURLE_FTP_PORT_FAILED;
+    }
+
+    sslen = sizeof(ss);
+    if (getsockname(portsock, sa, &sslen) < 0) {
+      failf(data, strerror(errno));
+      freeaddrinfo(res);
+      return CURLE_FTP_PORT_FAILED;
+    }
+
+    for (modep = mode; modep && *modep; modep++) {
+      int lprtaf, eprtaf;
+
+      switch (sa->sa_family) {
+      case AF_INET:
+	ap = (char *)&((struct sockaddr_in *)&ss)->sin_addr;
+	alen = sizeof(((struct sockaddr_in *)&ss)->sin_addr);
+	pp = (char *)&((struct sockaddr_in *)&ss)->sin_port;
+	plen = sizeof(((struct sockaddr_in *)&ss)->sin_port);
+	lprtaf = 4;
+	eprtaf = 1;
+	break;
+      case AF_INET6:
+	ap = (char *)&((struct sockaddr_in6 *)&ss)->sin6_addr;
+	alen = sizeof(((struct sockaddr_in6 *)&ss)->sin6_addr);
+	pp = (char *)&((struct sockaddr_in6 *)&ss)->sin6_port;
+	plen = sizeof(((struct sockaddr_in6 *)&ss)->sin6_port);
+	lprtaf = 6;
+	eprtaf = 2;
+	break;
+      default:
+	ap = pp = NULL;
+	lprtaf = eprtaf = -1;
+	break;
+      }
+
+      if (strcmp(*modep, "EPRT") == 0) {
+	if (eprtaf < 0)
+	  continue;
+	if (getnameinfo((struct sockaddr *)&ss, sslen,
+	    portmsgbuf, sizeof(portmsgbuf), tmp, sizeof(tmp), niflags))
+	  continue;
+	/* do not transmit IPv6 scope identifier to the wire */
+	if (sa->sa_family == AF_INET6) {
+	  char *q = strchr(portmsgbuf, '%');
+	  if (q)
+	    *q = '\0';
+	}
+	ftpsendf(data->firstsocket, conn, "%s |%d|%s|%s|", *modep, eprtaf,
+	    portmsgbuf, tmp);
+      } else if (strcmp(*modep, "LPRT") == 0 || strcmp(*modep, "PORT") == 0) {
+	int i;
+
+        if (strcmp(*modep, "LPRT") == 0 && lprtaf < 0)
+	  continue;
+        if (strcmp(*modep, "PORT") == 0 && sa->sa_family != AF_INET)
+	  continue;
+
+	portmsgbuf[0] = '\0';
+        if (strcmp(*modep, "LPRT") == 0) {
+	  snprintf(tmp, sizeof(tmp), "%d,%d", lprtaf, alen);
+	  if (strlcat(portmsgbuf, tmp, sizeof(portmsgbuf)) >= sizeof(portmsgbuf)) {
+	    goto again;
+	  }
+	}
+	for (i = 0; i < alen; i++) {
+	  if (portmsgbuf[0])
+	    snprintf(tmp, sizeof(tmp), ",%u", ap[i]);
+	  else
+	    snprintf(tmp, sizeof(tmp), "%u", ap[i]);
+	  if (strlcat(portmsgbuf, tmp, sizeof(portmsgbuf)) >= sizeof(portmsgbuf)) {
+	    goto again;
+	  }
+	}
+        if (strcmp(*modep, "LPRT") == 0) {
+	  snprintf(tmp, sizeof(tmp), ",%d", plen);
+	  if (strlcat(portmsgbuf, tmp, sizeof(portmsgbuf)) >= sizeof(portmsgbuf))
+	    goto again;
+	}
+	for (i = 0; i < plen; i++) {
+	  snprintf(tmp, sizeof(tmp), ",%u", pp[i]);
+	  if (strlcat(portmsgbuf, tmp, sizeof(portmsgbuf)) >= sizeof(portmsgbuf)) {
+	    goto again;
+	  }
+	}
+	ftpsendf(data->firstsocket, conn, "%s %s", *modep, portmsgbuf);
+      }
+
+      nread = Curl_GetFTPResponse(data->firstsocket, buf, conn, &ftpcode);
+      if (nread < 0)
+	return CURLE_OPERATION_TIMEOUTED;
+
+      if (ftpcode != 200) {
+	failf(data, "Server does not grok %s", *modep);
+	continue;
+      } else
+	      break;
+again:;
+    }
+
+    if (!*modep) {
+      close(portsock);
+      freeaddrinfo(res);
+      return CURLE_FTP_PORT_FAILED;
+    }
+
+#else
     struct sockaddr_in sa;
     struct hostent *h=NULL;
     char *hostdataptr=NULL;
@@ -809,26 +986,43 @@ CURLcode _ftp(struct connectdata *conn)
       failf(data, "Server does not grok PORT, try without it!");
       return CURLE_FTP_PORT_FAILED;
     }     
+#endif /* ENABLE_IPV6 */
   }
   else { /* we use the PASV command */
+#if 0
+    char *mode[] = { "EPSV", "LPSV", "PASV", NULL };
+    int results[] = { 229, 228, 227, 0 };
+#else
+    char *mode[] = { "PASV", NULL };
+    int results[] = { 227, 0 };
+#endif
+    int modeoff;
 
-    ftpsendf(data->firstsocket, conn, "PASV");
-
+    for (modeoff = 0; mode[modeoff]; modeoff++) {
+      ftpsendf(data->firstsocket, conn, mode[modeoff]);
       nread = Curl_GetFTPResponse(data->firstsocket, buf, conn, &ftpcode);
       if(nread < 0)
 	return CURLE_OPERATION_TIMEOUTED;
 
-    if(ftpcode != 227) {
+      if (ftpcode == results[modeoff])
+	break;
+    }
+
+    if (!mode[modeoff]) {
       failf(data, "Odd return code after PASV");
       return CURLE_FTP_WEIRD_PASV_REPLY;
     }
-    else {
+    else if (strcmp(mode[modeoff], "PASV") == 0) {
       int ip[4];
       int port[2];
       unsigned short newport; /* remote port, not necessary the local one */
       unsigned short connectport; /* the local port connect() should use! */
       char newhost[32];
+#ifdef ENABLE_IPV6
+      struct addrinfo *res;
+#else
       struct hostent *he;
+#endif
       char *str=buf,*ip_addr;
       char *hostdataptr=NULL;
 
@@ -863,20 +1057,78 @@ CURLcode _ftp(struct connectdata *conn)
          * proxy again here. We already have the name info for it since the
          * previous lookup.
          */
+#ifdef ENABLE_IPV6
+        res = conn->res;
+#else
         he = conn->hp;
+#endif
         connectport =
           (unsigned short)data->port; /* we connect to the proxy's port */
       }
       else {
         /* normal, direct, ftp connection */
+#ifdef ENABLE_IPV6
+        res = Curl_getaddrinfo(data, newhost, newport);
+        if(!res)
+#else
         he = Curl_gethost(data, newhost, &hostdataptr);
-        if(!he) {
+        if(!he)
+#endif
+        {
           failf(data, "Can't resolve new host %s", newhost);
           return CURLE_FTP_CANT_GET_HOST;
         }
         connectport = newport; /* we connect to the remote port */
       }
 	
+#ifdef ENABLE_IPV6
+      data->secondarysocket = -1;
+      for (ai = res; ai; ai = ai->ai_next) {
+	/* XXX for now, we can do IPv4 only */
+	if (ai->ai_family != AF_INET)
+	  continue;
+
+	data->secondarysocket = socket(ai->ai_family, ai->ai_socktype,
+	    ai->ai_protocol);
+	if (data->secondarysocket < 0)
+	  continue;
+
+	if(data->bits.verbose) {
+	  char hbuf[NI_MAXHOST];
+	  char nbuf[NI_MAXHOST];
+	  char sbuf[NI_MAXSERV];
+#ifdef NI_WITHSCOPEID
+	  const int niflags = NI_NUMERICHOST | NI_NUMERICSERV | NI_WITHSCOPEID;
+#else
+	  const int niflags = NI_NUMERICHOST | NI_NUMERICSERV;
+#endif
+	  if (getnameinfo(res->ai_addr, res->ai_addrlen, nbuf, sizeof(nbuf),
+	      sbuf, sizeof(sbuf), niflags)) {
+	    snprintf(nbuf, sizeof(nbuf), "?");
+	    snprintf(sbuf, sizeof(sbuf), "?");
+	  }
+	  if (getnameinfo(res->ai_addr, res->ai_addrlen, hbuf, sizeof(hbuf),
+	      NULL, 0, 0)) {
+	    infof(data, "Connecting to %s port %s\n", nbuf, sbuf);
+	  } else {
+	    infof(data, "Connecting to %s (%s) port %s\n", hbuf, nbuf, sbuf);
+	  }
+	}
+
+	if (connect(data->secondarysocket, ai->ai_addr, ai->ai_addrlen) < 0) {
+	  close(data->secondarysocket);
+	  data->secondarysocket = -1;
+	  continue;
+	}
+
+	break;
+      }
+
+      if (data->secondarysocket < 0) {
+	failf(data, strerror(errno));
+        return CURLE_FTP_CANT_RECONNECT;
+      }
+#else
       data->secondarysocket = socket(AF_INET, SOCK_STREAM, 0);
 
       memset((char *) &serv_addr, '\0', sizeof(serv_addr));
@@ -971,6 +1223,7 @@ CURLcode _ftp(struct connectdata *conn)
         }
         return CURLE_FTP_CANT_RECONNECT;
       }
+#endif /*ENABLE_IPV6*/
 
       if (data->bits.tunnel_thru_httpproxy) {
         /* We want "seamless" FTP operations through HTTP proxy tunnel */
@@ -979,6 +1232,8 @@ CURLcode _ftp(struct connectdata *conn)
         if(CURLE_OK != result)
           return result;
       }
+    } else {
+      return CURLE_FTP_CANT_RECONNECT;
     }
   }
   /* we have the (new) data connection ready */

lib/getinfo.c

@@ -103,6 +103,12 @@ CURLcode curl_getinfo(CURL *curl, CURLINFO info, ...)
   case CURLINFO_SSL_VERIFYRESULT:
     *param_longp = data->ssl.certverifyresult;
     break;
+  case CURLINFO_CONTENT_LENGTH_DOWNLOAD:
+    *param_doublep = data->progress.size_dl;
+    break;
+  case CURLINFO_CONTENT_LENGTH_UPLOAD:
+    *param_doublep = data->progress.size_ul;
+    break;
   default:
     return CURLE_BAD_FUNCTION_ARGUMENT;
   }

lib/hostip.c

@@ -83,6 +83,29 @@ static char *MakeIP(unsigned long num,char *addr, int addr_len)
   return (addr);
 }
 
+#ifdef ENABLE_IPV6
+struct addrinfo *Curl_getaddrinfo(struct UrlData *data,
+			       char *hostname,
+			       int port)
+{
+  struct addrinfo hints, *res;
+  int error;
+  char sbuf[NI_MAXSERV];
+
+  memset(&hints, 0, sizeof(hints));
+  hints.ai_family = PF_UNSPEC;
+  hints.ai_socktype = SOCK_STREAM;
+  hints.ai_flags = AI_CANONNAME;
+  snprintf(sbuf, sizeof(sbuf), "%d", port);
+  error = getaddrinfo(hostname, sbuf, &hints, &res);
+  if (error) {
+    infof(data, "getaddrinfo(3) failed for %s\n", hostname);
+    return NULL;
+  }
+  return res;
+}
+#endif
+
 /* 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. */

lib/hostip.h

@@ -23,6 +23,11 @@
  * $Id$
  *****************************************************************************/
 
+struct addrinfo;
+struct addrinfo *Curl_getaddrinfo(struct UrlData *data,
+                             char *hostname,
+                             int port);
+
 struct hostent *Curl_gethost(struct UrlData *data,
                              char *hostname,
                              char **bufp);

lib/http.c

@@ -214,7 +214,7 @@ CURLcode add_buffer(send_buffer *in, void *inptr, size_t size)
 static
 int GetLine(int sockfd, char *buf, struct connectdata *conn)
 {
-  size_t nread;
+  ssize_t nread;
   int read_rc=1;
   char *ptr;
   struct UrlData *data=conn->data;
@@ -226,6 +226,7 @@ int GetLine(int sockfd, char *buf, struct connectdata *conn)
       (nread<BUFSIZE) && read_rc;
       nread++, ptr++) {
     if((CURLE_OK != Curl_read(conn, sockfd, ptr, 1, &nread)) ||
+       (nread <= 0) ||
        (*ptr == '\n'))
       break;
   }
@@ -236,7 +237,7 @@ int GetLine(int sockfd, char *buf, struct connectdata *conn)
     fwrite(buf, 1, nread, data->err);
     fputs("\n", data->err);
   }
-  return nread;
+  return nread>0?nread:0;
 }
 
 
@@ -429,9 +430,6 @@ CURLcode Curl_http(struct connectdata *conn)
       }
     }
   }
-  if((data->bits.set_range) && !checkheaders(data, "Range:")) {
-    data->ptr_rangeline = aprintf("Range: bytes=%s\015\012", data->range);
-  }
   if((data->bits.http_set_referer) && !checkheaders(data, "Referer:")) {
     data->ptr_ref = aprintf("Referer: %s\015\012", data->referer);
   }
@@ -471,6 +469,92 @@ CURLcode Curl_http(struct connectdata *conn)
   if(!checkheaders(data, "Accept:"))
     http->p_accept = "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n";
 
+  if((data->bits.http_post ||
+      data->bits.http_formpost ||
+      data->bits.http_put) &&
+     data->resume_from) {
+    /**********************************************************************
+     * Resuming upload in HTTP means that we PUT or POST and that we have
+     * got a resume_from value set. The resume value has already created
+     * a Range: header that will be passed along. We need to "fast forward"
+     * the file the given number of bytes and decrease the assume upload
+     * file size before we continue this venture in the dark lands of HTTP.
+     *********************************************************************/
+   
+    if(data->resume_from < 0 ) {
+      /*
+       * This is meant to get the size of the present remote-file by itself.
+       * We don't support this now. Bail out!
+       */
+       data->resume_from = 0;
+    }
+
+    if(data->resume_from) {
+      /* do we still game? */
+      int passed=0;
+
+      /* Now, let's read off the proper amount of bytes from the
+         input. If we knew it was a proper file we could've just
+         fseek()ed but we only have a stream here */
+      do {
+        int readthisamountnow = (data->resume_from - passed);
+        int actuallyread;
+
+        if(readthisamountnow > BUFSIZE)
+          readthisamountnow = BUFSIZE;
+
+        actuallyread =
+          data->fread(data->buffer, 1, readthisamountnow, data->in);
+
+        passed += actuallyread;
+        if(actuallyread != readthisamountnow) {
+          failf(data, "Could only read %d bytes from the input\n",
+                passed);
+          return CURLE_READ_ERROR;
+        }
+      } while(passed != data->resume_from); /* loop until done */
+
+      /* now, decrease the size of the read */
+      if(data->infilesize>0) {
+        data->infilesize -= data->resume_from;
+
+        if(data->infilesize <= 0) {
+          failf(data, "File already completely uploaded\n");
+          return CURLE_PARTIAL_FILE;
+        }
+      }
+      /* we've passed, proceed as normal */
+    }
+  }
+  if(data->bits.set_range) {
+    /*
+     * A range is selected. We use different headers whether we're downloading
+     * or uploading and we always let customized headers override our internal
+     * ones if any such are specified.
+     */
+    if((data->httpreq == HTTPREQ_GET) &&
+       !checkheaders(data, "Range:")) {
+      data->ptr_rangeline = aprintf("Range: bytes=%s\r\n", data->range);
+    }
+    else if((data->httpreq != HTTPREQ_GET) &&
+            !checkheaders(data, "Content-Range:")) {
+
+      if(data->resume_from) {
+        /* This is because "resume" was selected */
+        long total_expected_size= data->resume_from + data->infilesize;
+        data->ptr_rangeline = aprintf("Content-Range: bytes %s%ld/%ld\r\n",
+                                      data->range, total_expected_size-1,
+                                      total_expected_size);
+      }
+      else {
+        /* Range was selected and then we just pass the incoming range and 
+           append total size */
+        data->ptr_rangeline = aprintf("Content-Range: bytes %s/%d\r\n",
+                                      data->range, data->infilesize);
+      }
+    }
+  }
+
   do {
     send_buffer *req_buffer;
     struct curl_slist *headers=data->headers;

lib/if2ip.h

@@ -24,7 +24,7 @@
  *****************************************************************************/
 #include "setup.h"
 
-#if ! defined(WIN32) && ! defined(__BEOS__)
+#if ! defined(WIN32) && ! defined(__BEOS__) && !defined(__CYGWIN32__)
 extern char *Curl_if2ip(char *interface, char *buf, int buf_size);
 #else
 #define Curl_if2ip(a,b,c) NULL

lib/netrc.c

@@ -27,7 +27,8 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "getenv.h"
+#include <curl/curl.h>
+
 #include "strequal.h"
 
 /* Debug this single source file with:

lib/progress.c

@@ -203,6 +203,9 @@ int Curl_pgrsUpdate(struct UrlData *data)
          even when not displayed! */
   else if(!(data->progress.flags & PGRS_HEADERS_OUT)) {
     if (!data->progress.callback) {
+      if(data->resume_from)
+        fprintf(data->err, "** Resuming transfer from byte position %d\n",
+                data->resume_from);
       fprintf(data->err,
               "  %% Total    %% Received %% Xferd  Average Speed          Time             Curr.\n"
               "                                 Dload  Upload Total    Current  Left    Speed\n");

lib/sendf.c

@@ -198,10 +198,10 @@ CURLcode Curl_client_write(struct UrlData *data,
  */
 CURLcode Curl_read(struct connectdata *conn, int sockfd,
                    char *buf, size_t buffersize,
-                   size_t *n)
+                   ssize_t *n)
 {
   struct UrlData *data = conn->data;
-  size_t nread;
+  ssize_t nread;
 
 #ifdef USE_SSLEAY
   if (data->ssl.use) {
@@ -234,7 +234,7 @@ CURLcode Curl_read(struct connectdata *conn, int sockfd,
  */
 
 CURLcode curl_read(CURLconnect *c_conn, char *buf, size_t buffersize,
-                   size_t *n)
+                   ssize_t *n)
 {
   struct connectdata *conn = (struct connectdata *)c_conn;
 

lib/sendf.h

@@ -47,7 +47,7 @@ CURLcode Curl_client_write(struct UrlData *data, int type, char *ptr,
 /* internal read-function, does plain socket, SSL and krb4 */
 CURLcode Curl_read(struct connectdata *conn, int sockfd,
                    char *buf, size_t buffersize,
-                   size_t *n);
+                   ssize_t *n);
 /* internal write-function, does plain socket, SSL and krb4 */
 CURLcode Curl_write(struct connectdata *conn, int sockfd,
                     void *mem, size_t len,

lib/strequal.c

@@ -66,3 +66,44 @@ int Curl_strnequal(const char *first, const char *second, size_t max)
 #endif
 }
 
+#ifndef HAVE_STRLCAT
+/*
+ * The strlcat() function appends the NUL-terminated string src to the end
+ * of dst. It will append at most size - strlen(dst) - 1 bytes, NUL-termi-
+ * nating the result.
+ *
+ * The strlcpy() and strlcat() functions return the total length of the
+ * string they tried to create.  For strlcpy() that means the length of src.
+ * For strlcat() that means the initial length of dst plus the length of
+ * src. While this may seem somewhat confusing it was done to make trunca-
+ * tion detection simple.
+ *
+ * 
+ */
+size_t strlcat(char *dst, const char *src, size_t siz)
+{
+  char *d = dst;
+  const char *s = src;
+  size_t n = siz;
+  size_t dlen;
+
+  /* Find the end of dst and adjust bytes left but don't go past end */
+  while (n-- != 0 && *d != '\0')
+    d++;
+  dlen = d - dst;
+  n = siz - dlen;
+
+  if (n == 0)
+    return(dlen + strlen(s));
+  while (*s != '\0') {
+    if (n != 1) {
+      *d++ = *s;
+      n--;
+    }
+    s++;
+  }
+  *d = '\0';
+
+  return(dlen + (s - src));	/* count does not include NUL */
+}
+#endif

lib/telnet.c

@@ -833,7 +833,7 @@ CURLcode Curl_telnet(struct connectdata *conn)
 
   bool keepon = TRUE;
   char *buf = data->buffer;
-  size_t nread;
+  ssize_t nread;
 
   init_telnet(data);
    
@@ -872,7 +872,7 @@ CURLcode Curl_telnet(struct connectdata *conn)
         }
       }
 
-      if(FD_ISSET(sockfd, &readfd))
+      if(FD_ISSET(sockfd, &readfd)) {
         Curl_read(conn, sockfd, buf, BUFSIZE - 1, &nread);
 
         /* if we receive 0 or less here, the server closed the connection and
@@ -885,7 +885,9 @@ CURLcode Curl_telnet(struct connectdata *conn)
         telrcv(data, (unsigned char *)buf, nread);
       }
     }
-  return CURLE_OK;
+  }
+  /* mark this as "no further transfer wanted" */
+  return Curl_Transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
 }
 
 

lib/transfer.c

@@ -82,7 +82,6 @@
 #include <curl/types.h>
 #include "netrc.h"
 
-#include "getenv.h"
 #include "hostip.h"
 #include "transfer.h"
 #include "sendf.h"
@@ -109,7 +108,7 @@
 CURLcode static
 _Transfer(struct connectdata *c_conn)
 {
-  size_t nread;                 /* number of bytes read */
+  ssize_t nread;                /* number of bytes read */
   int bytecount = 0;            /* total number of bytes read */
   int writebytecount = 0;       /* number of bytes written */
   long contentlength=0;         /* size of incoming data */
@@ -161,6 +160,12 @@ _Transfer(struct connectdata *c_conn)
   Curl_pgrsTime(data, TIMER_PRETRANSFER);
   Curl_speedinit(data);
 
+  if((conn->sockfd == -1) &&
+     (conn->writesockfd == -1)) {
+    /* nothing to read, nothing to write, we're already OK! */
+    return CURLE_OK;
+  }
+
   if (!conn->getheader) {
     header = FALSE;
     if(conn->size > 0)
@@ -444,17 +449,21 @@ _Transfer(struct connectdata *c_conn)
                  write a chunk of the body */
               if(conn->protocol&PROT_HTTP) {
                 /* HTTP-only checks */
-                if (data->resume_from && !content_range ) {
-                  /* we wanted to resume a download, although the server
-                     doesn't seem to support this */
-                  failf (data, "HTTP server doesn't seem to support byte ranges. Cannot resume.");
-                  return CURLE_HTTP_RANGE_ERROR;
-                }
-                else if (data->newurl) {
+                if (data->newurl) {
                   /* abort after the headers if "follow Location" is set */
                   infof (data, "Follow to new URL: %s\n", data->newurl);
                   return CURLE_OK;
                 }
+                else if (data->resume_from &&
+                         !content_range &&
+                         (data->httpreq==HTTPREQ_GET)) {
+                  /* we wanted to resume a download, although the server
+                     doesn't seem to support this and we did this with a GET
+                     (if it wasn't a GET we did a POST or PUT resume) */
+                  failf (data, "HTTP server doesn't seem to support "
+                         "byte ranges. Cannot resume.");
+                  return CURLE_HTTP_RANGE_ERROR;
+                }
                 else if(data->timecondition && !data->range) {
                   /* A time condition has been set AND no ranges have been
                      requested. This seems to be what chapter 13.3.4 of
@@ -721,13 +730,48 @@ CURLcode curl_transfer(CURL *curl)
         data->newurl = NULL; /* don't show! */
         data->bits.urlstringalloc = TRUE; /* the URL is allocated */
 
-        /* Disable both types of POSTs, since doing a second POST when
-           following isn't what anyone would want! */
-        data->bits.http_post = FALSE;
-        data->bits.http_formpost = FALSE;
-
         infof(data, "Follows Location: to new URL: '%s'\n", data->url);
 
+        /*
+         * We get here when the HTTP code is 300-399. We need to perform
+         * differently based on exactly what return code there was.
+         * Discussed on the curl mailing list and posted about on the 26th
+         * of January 2001.
+         */
+        switch(data->progress.httpcode) {
+        case 300: /* Multiple Choices */
+        case 301: /* Moved Permanently */
+        case 302: /* Found */
+        case 306: /* Not used */
+        case 307: /* Temporary Redirect */
+        default:  /* for all unknown ones */
+          /* These are explicitly mention since I've checked RFC2616 and they
+           * seem to be OK to POST to.
+           */
+          break;
+        case 303: /* See Other */
+          /* Disable both types of POSTs, since doing a second POST when
+           * following isn't what anyone would want! */
+          data->bits.http_post = FALSE;
+          data->bits.http_formpost = FALSE;
+          data->httpreq = HTTPREQ_GET; /* enfore GET request */
+          infof(data, "Disables POST\n");
+          break;
+        case 304: /* Not Modified */
+          /* 304 means we did a conditional request and it was "Not modified".
+           * We shouldn't get any Location: header in this response!
+           */
+          break;
+        case 305: /* Use Proxy */
+          /* (quote from RFC2616, section 10.3.6):
+           * "The requested resource MUST be accessed through the proxy given
+           * by the Location field. The Location field gives the URI of the
+           * proxy.  The recipient is expected to repeat this single request
+           * via the proxy. 305 responses MUST only be generated by origin
+           * servers."
+           */
+          break;
+        }
         curl_disconnect(c_connect);
         continue;
       }

lib/url.c

@@ -80,7 +80,6 @@
 #include "netrc.h"
 
 #include "formdata.h"
-#include "getenv.h"
 #include "base64.h"
 #include "ssluse.h"
 #include "hostip.h"
@@ -301,6 +300,8 @@ CURLcode curl_open(CURL **curl, char *url)
 
     data->current_speed = -1; /* init to negative == impossible */
 
+    data->httpreq = HTTPREQ_GET; /* Default HTTP request */
+
     *curl = data;
     return CURLE_OK;
   }
@@ -337,9 +338,14 @@ CURLcode curl_setopt(CURL *curl, CURLoption option, ...)
     break;
   case CURLOPT_UPLOAD:
     data->bits.upload = va_arg(param, long)?TRUE:FALSE;
+    if(data->bits.upload)
+      /* If this is HTTP, PUT is what's needed to "upload" */
+      data->httpreq = HTTPREQ_PUT;
     break;
   case CURLOPT_POST:
     data->bits.http_post = va_arg(param, long)?TRUE:FALSE;
+    if(data->bits.http_post)
+      data->httpreq = HTTPREQ_POST;
     break;
   case CURLOPT_FILETIME:
     data->bits.get_filetime = va_arg(param, long)?TRUE:FALSE;
@@ -361,19 +367,18 @@ CURLcode curl_setopt(CURL *curl, CURLoption option, ...)
     break;
   case CURLOPT_PUT:
     data->bits.http_put = va_arg(param, long)?TRUE:FALSE;
+    if(data->bits.http_put)
+      data->httpreq = HTTPREQ_PUT;
     break;
   case CURLOPT_MUTE:
     data->bits.mute = va_arg(param, long)?TRUE:FALSE;
     break;
-
   case CURLOPT_TIMECONDITION:
     data->timecondition = va_arg(param, long);
     break;
-
   case CURLOPT_TIMEVALUE:
     data->timevalue = va_arg(param, long);
     break;
-
   case CURLOPT_SSLVERSION:
     data->ssl.version = va_arg(param, long);
     break;
@@ -405,10 +410,14 @@ CURLcode curl_setopt(CURL *curl, CURLoption option, ...)
     break;
   case CURLOPT_CUSTOMREQUEST:
     data->customrequest = va_arg(param, char *);
+    if(data->customrequest)
+      data->httpreq = HTTPREQ_CUSTOM;
     break;
   case CURLOPT_HTTPPOST:
     data->httppost = va_arg(param, struct HttpPost *);
     data->bits.http_formpost = data->httppost?1:0;
+    if(data->bits.http_formpost)
+      data->httpreq = HTTPREQ_POST_FORM;
     break;
   case CURLOPT_INFILE:
     data->in = va_arg(param, FILE *);
@@ -552,8 +561,13 @@ CURLcode curl_disconnect(CURLconnect *c_connect)
 
   struct UrlData *data = conn->data;
 
+#ifdef ENABLE_IPV6
+  if(conn->res) /* host name info */
+    freeaddrinfo(conn->res);
+#else
   if(conn->hostent_buf) /* host name info */
     free(conn->hostent_buf);
+#endif
 
   if(conn->path) /* the URL path part */
     free(conn->path);
@@ -579,6 +593,9 @@ static CURLcode _connect(CURL *curl, CURLconnect **in_connect)
   struct sigaction sigact;
 #endif
   int urllen;
+#ifdef ENABLE_IPV6
+  struct addrinfo *ai;
+#endif
 
   /*************************************************************
    * Check input data
@@ -1179,13 +1196,23 @@ static CURLcode _connect(CURL *curl, CURLconnect **in_connect)
     data->port =  data->remote_port; /* it is the same port */
 
     /* Connect to target host right on */
+#ifdef ENABLE_IPV6
+    conn->res = Curl_getaddrinfo(data, conn->name, data->port);
+    if(!conn->res)
+#else
     conn->hp = Curl_gethost(data, conn->name, &conn->hostent_buf);
-    if(!conn->hp) {
+    if(!conn->hp)
+#endif
+    {
       failf(data, "Couldn't resolve host '%s'", conn->name);
       return CURLE_COULDNT_RESOLVE_HOST;
     }
   }
   else {
+#ifdef ENABLE_IPV6
+    failf(data, "proxy yet to be supported");
+    return CURLE_OUT_OF_MEMORY;
+#else
     char *prox_portno;
     char *endofprot;
 
@@ -1234,9 +1261,11 @@ static CURLcode _connect(CURL *curl, CURLconnect **in_connect)
     }
 
     free(proxydup); /* free the duplicate pointer and not the modified */
+#endif
   }
   Curl_pgrsTime(data, TIMER_NAMELOOKUP);
 
+#ifndef ENABLE_IPV6
   data->firstsocket = socket(AF_INET, SOCK_STREAM, 0);
 
   memset((char *) &conn->serv_addr, '\0', sizeof(conn->serv_addr));
@@ -1244,6 +1273,7 @@ static CURLcode _connect(CURL *curl, CURLconnect **in_connect)
          conn->hp->h_addr, conn->hp->h_length);
   conn->serv_addr.sin_family = conn->hp->h_addrtype;
   conn->serv_addr.sin_port = htons(data->port);
+#endif
 
 #if !defined(WIN32)||defined(__CYGWIN32__)
   /* We don't generally like checking for OS-versions, we should make this
@@ -1256,6 +1286,7 @@ static CURLcode _connect(CURL *curl, CURLconnect **in_connect)
 #define INADDR_NONE (unsigned long) ~0
 #endif
 
+#ifndef ENABLE_IPV6
   /*************************************************************
    * Select device to bind socket to
    *************************************************************/
@@ -1364,10 +1395,31 @@ static CURLcode _connect(CURL *curl, CURLconnect **in_connect)
   } /* end of device selection support */
 #endif  /* end of HAVE_INET_NTOA */
 #endif /* end of not WIN32 */
+#endif /*ENABLE_IPV6*/
 
   /*************************************************************
    * Connect to server/proxy
    *************************************************************/
+#ifdef ENABLE_IPV6
+  data->firstsocket = -1;
+  for (ai = conn->res; ai; ai = ai->ai_next) {
+    data->firstsocket = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+    if (data->firstsocket < 0)
+      continue;
+
+    if (connect(data->firstsocket, ai->ai_addr, ai->ai_addrlen) < 0) {
+      close(data->firstsocket);
+      data->firstsocket = -1;
+      continue;
+    }
+
+    break;
+  }
+  if (data->firstsocket < 0) {
+    failf(data, strerror(errno));
+    return CURLE_COULDNT_CONNECT;
+  }
+#else
   if (connect(data->firstsocket,
               (struct sockaddr *) &(conn->serv_addr),
               sizeof(conn->serv_addr)
@@ -1416,6 +1468,7 @@ static CURLcode _connect(CURL *curl, CURLconnect **in_connect)
     }
     return CURLE_COULDNT_CONNECT;
   }
+#endif
 
   /*************************************************************
    * Proxy authentication
@@ -1463,11 +1516,31 @@ static CURLcode _connect(CURL *curl, CURLconnect **in_connect)
   conn->bytecount = 0;
   
   /* Figure out the ip-number and display the first host name it shows: */
+#ifdef ENABLE_IPV6
+  {
+    char hbuf[NI_MAXHOST];
+#ifdef NI_WITHSCOPEID
+    const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
+#else
+    const int niflags = NI_NUMERICHOST;
+#endif
+    if (getnameinfo(ai->ai_addr, ai->ai_addrlen, hbuf, sizeof(hbuf), NULL, 0,
+	niflags)) {
+      snprintf(hbuf, sizeof(hbuf), "?");
+    }
+    if (ai->ai_canonname) {
+      infof(data, "Connected to %s (%s)\n", ai->ai_canonname, hbuf);
+    } else {
+      infof(data, "Connected to %s\n", hbuf);
+    }
+  }
+#else
   {
     struct in_addr in;
     (void) memcpy(&in.s_addr, *conn->hp->h_addr_list, sizeof (in.s_addr));
     infof(data, "Connected to %s (%s)\n", conn->hp->h_name, inet_ntoa(in));
   }
+#endif
 
 #ifdef __EMX__
   /* 20000330 mgs
@@ -1499,8 +1572,13 @@ CURLcode curl_connect(CURL *curl, CURLconnect **in_connect)
     if(conn) {
       if(conn->path)
         free(conn->path);
+#ifdef ENABLE_IPV6
+      if(conn->res)
+        freeaddrinfo(conn->res);
+#else
       if(conn->hostent_buf)
         free(conn->hostent_buf);
+#endif
       free(conn);
       *in_connect=NULL;
     }

lib/urldata.h

@@ -159,9 +159,13 @@ struct connectdata {
 #define PROT_LDAP    (1<<7)
 #define PROT_FILE    (1<<8)
 
+#ifdef ENABLE_IPV6
+  struct addrinfo *res;
+#else
   char *hostent_buf; /* pointer to allocated memory for name info */
   struct hostent *hp;
   struct sockaddr_in serv_addr;
+#endif
   char proto[64];  /* store the protocol string in this buffer */
   char gname[257]; /* store the hostname in this buffer */
   char *name;      /* host name pointer to fool around with */
@@ -278,9 +282,25 @@ struct FTP {
   char *file;    /* decoded file */
 };
 
+typedef enum {
+  HTTPREQ_NONE, /* first in list */
+  HTTPREQ_GET,
+  HTTPREQ_POST,
+  HTTPREQ_POST_FORM, /* we make a difference internally */
+  HTTPREQ_PUT,
+  HTTPREQ_CUSTOM,
+  HTTPREQ_LAST /* last in list */
+} Curl_HttpReq;
+
 /* This struct is for boolean settings that define how to behave during
    this session. */
 struct Configbits {
+  /* these four request types mirror the httpreq field */
+  bool http_formpost;
+  bool http_post;
+  bool http_put;
+  bool http_get;
+
   bool get_filetime;
   bool tunnel_thru_httpproxy;
   bool ftp_append;
@@ -290,10 +310,7 @@ struct Configbits {
   bool hide_progress;
   bool http_fail_on_error;
   bool http_follow_location;
-  bool http_formpost;
   bool http_include_header;
-  bool http_post;
-  bool http_put;
   bool http_set_referer;
   bool http_auto_referer; /* set "correct" referer when following location: */
   bool httpproxy;
@@ -308,7 +325,6 @@ struct Configbits {
   bool verbose;
   bool this_is_a_follow; /* this is a followed Location: request */
   bool krb4; /* kerberos4 connection requested */
-
   bool proxystringalloc; /* the http proxy string is malloc()'ed */
   bool rangestringalloc; /* the range string is malloc()'ed */
   bool urlstringalloc;   /* the URL string is malloc()'ed */
@@ -481,6 +497,8 @@ struct UrlData {
   TimeCond timecondition; /* kind of comparison */
   time_t timevalue;       /* what time to compare with */
 
+  Curl_HttpReq httpreq; /* what kind of HTTP request (if any) is this */
+
   char *customrequest; /* http/ftp request to use */
 
   char *headerbuff; /* allocated buffer to store headers in */

src/Makefile.vc6

@@ -17,7 +17,7 @@ LINKR = link.exe /incremental:no /libpath:"../lib"
 
 ## Debug
 CCD = cl.exe /MDd /Gm /ZI /Od /D "_DEBUG" /GZ
-LINKD = link.exe /incremental:yes /debug
+LINKD = link.exe /incremental:yes /debug /libpath:"../lib"
 
 CFLAGS = /I "../include" /nologo /W3 /GX /D "WIN32" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
 LFLAGS = /nologo /out:$(PROGRAM_NAME) /subsystem:console /machine:I386

src/main.c

@@ -109,7 +109,9 @@ typedef enum {
 #define CONF_FOLLOWLOCATION (1<<23) /* use Location: Luke! */
 #define CONF_GETTEXT  (1<<24) /* use ASCII/text for transfer */
 #define CONF_HTTPPOST (1<<25) /* multipart/form-data HTTP POST */
+#if 0
 #define CONF_PUT      (1<<27) /* PUT the input file */
+#endif
 #define CONF_MUTE     (1<<28) /* force NOPROGRESS */
 
 #ifndef HAVE_STRDUP
@@ -1749,7 +1751,9 @@ operate(struct Configurable *config, int argc, char *argv[])
         curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION,
                          config->conf&CONF_FOLLOWLOCATION);
         curl_easy_setopt(curl, CURLOPT_TRANSFERTEXT, config->conf&CONF_GETTEXT);
+#if 0
         curl_easy_setopt(curl, CURLOPT_PUT, config->conf&CONF_PUT);
+#endif
         curl_easy_setopt(curl, CURLOPT_MUTE, config->conf&CONF_MUTE);
         curl_easy_setopt(curl, CURLOPT_USERPWD, config->userpwd);
         curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, config->proxyuserpwd);

src/version.h

@@ -1,3 +1,3 @@
 #define CURL_NAME "curl"
-#define CURL_VERSION "7.6-pre4"
+#define CURL_VERSION "7.6.1-pre3"
 #define CURL_ID CURL_NAME " " CURL_VERSION " (" OS ") "

tests/data/Makefile.am

@@ -56,4 +56,10 @@ command26.txt  prot26.txt     command27.txt  prot27.txt \
 name26.txt     reply26.txt    name27.txt     stdout27.txt \
 command28.txt  name28.txt     prot28.txt     reply28.txt \
 command120.txt  name120.txt     prot120.txt     reply120.txt \
-command121.txt  name121.txt     prot121.txt     reply121.txt
+command121.txt  name121.txt     prot121.txt     reply121.txt \
+command29.txt  error30.txt  name30.txt  prot30.txt   reply30.txt \
+command30.txt  name29.txt   prot29.txt  reply29.txt \
+command31.txt  name32.txt  reply31.txt      reply32.txt \
+command32.txt  prot31.txt  reply310001.txt  reply320001.txt \
+name31.txt     prot32.txt  reply310002.txt  reply320002.txt \
+command33.txt  extra33.txt    name33.txt     prot33.txt     reply33.txt

tests/data/command29.txt

@@ -0,0 +1 @@
+-C 200 http://%HOSTIP:%HOSTPORT/29

tests/data/command30.txt

@@ -0,0 +1 @@
+http://%HOSTIP:%HOSTPORT/30

tests/data/command31.txt

@@ -0,0 +1,2 @@
+http://%HOSTIP:%HOSTPORT/31 -d mooo=fooo -L
+

tests/data/command32.txt

@@ -0,0 +1,2 @@
+http://%HOSTIP:%HOSTPORT/32 -d mooo=fooo -L
+

tests/data/command33.txt

@@ -0,0 +1,3 @@
+http://%HOSTIP:%HOSTPORT/33 -Tdata/extra33.txt -C 50
+
+

tests/data/error30.txt

@@ -0,0 +1 @@
+18

tests/data/extra33.txt

@@ -0,0 +1,15 @@
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678

tests/data/name29.txt

@@ -0,0 +1 @@
+HTTP download resume with Content-Length validity

tests/data/name30.txt

@@ -0,0 +1 @@
+HTTP GET uncomplete document

tests/data/name31.txt

@@ -0,0 +1 @@
+HTTP POST and follow Location: (error 301)

tests/data/name32.txt

@@ -0,0 +1 @@
+HTTP POST and follow Location: (error 303)

tests/data/name33.txt

@@ -0,0 +1 @@
+HTTP PUT resume

tests/data/prot29.txt

@@ -0,0 +1,7 @@
+GET /29 HTTP/1.0
+Range: bytes=200-
+User-Agent: curl/7.6 (i686-pc-linux-gnu) libcurl 7.6 (SSL 0.9.5) (ipv6 enabled)
+Host: 127.0.0.1:8999
+Pragma: no-cache
+Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*
+

tests/data/prot30.txt

@@ -0,0 +1,6 @@
+GET /30 HTTP/1.0
+User-Agent: curl/7.6 (i686-pc-linux-gnu) libcurl 7.6 (SSL 0.9.5) (ipv6 enabled)
+Host: 127.0.0.1:8999
+Pragma: no-cache
+Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*
+

tests/data/prot31.txt

@@ -0,0 +1,9 @@
+POST /moo/moo/moo/310002 HTTP/1.0
+User-Agent: curl/7.6 (i686-pc-linux-gnu) libcurl 7.6 (SSL 0.9.5) (ipv6 enabled)
+Host: 127.0.0.1:8999
+Pragma: no-cache
+Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*
+Content-Length: 9
+Content-Type: application/x-www-form-urlencoded
+
+mooo=fooo

tests/data/prot32.txt

@@ -0,0 +1,6 @@
+GET /moo/moo/moo/320002 HTTP/1.0
+User-Agent: curl/7.6 (i686-pc-linux-gnu) libcurl 7.6 (SSL 0.9.5) (ipv6 enabled)
+Host: 127.0.0.1:8999
+Pragma: no-cache
+Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*
+

tests/data/prot33.txt

@@ -0,0 +1,18 @@
+PUT /33 HTTP/1.0
+Content-Range: bytes 50-149/150
+User-Agent: curl/7.6 (sparc-sun-solaris2.7) libcurl 7.6-pre4 (SSL 0.9.6) (krb4 enabled)
+Host: 127.0.0.1:8999
+Pragma: no-cache
+Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*
+Content-Length: 100
+
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678
+012345678

tests/data/reply29.txt

@@ -0,0 +1,9 @@
+HTTP/1.1 200 OK
+Server: fake
+Content-Range: bytes 200-3526/3527
+Content-Length: 84
+
+
+The Content-Range header's contents above aren't really genuine for this
+content.
+

tests/data/reply30.txt

@@ -0,0 +1,7 @@
+HTTP/1.1 200 OK
+Server: fake
+Content-Length: 8400
+
+This file is a lot smaller than 8400 and thus curl should return an error
+for this.
+

tests/data/reply31.txt

@@ -0,0 +1,6 @@
+HTTP/1.1 301 Moved Permanently
+Server: fake
+Location: /moo/moo/moo/310002
+
+No contents
+

tests/data/reply310001.txt

@@ -0,0 +1,9 @@
+HTTP/1.1 301 Moved Permanently
+Server: fake
+Location: /moo/moo/moo/310002
+
+HTTP/1.1 200 Followed here fine
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+
+If this is received, the location following worked

tests/data/reply310002.txt

@@ -0,0 +1,5 @@
+HTTP/1.1 200 Followed here fine
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+
+If this is received, the location following worked

tests/data/reply32.txt

@@ -0,0 +1,7 @@
+HTTP/1.1 303 See Other
+Server: fake
+Location: /moo/moo/moo/320002
+
+This Location should be fetched with a GET!
+
+

tests/data/reply320001.txt

@@ -0,0 +1,9 @@
+HTTP/1.1 303 See Other
+Server: fake
+Location: /moo/moo/moo/320002
+
+HTTP/1.1 200 Followed here fine
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+
+If this is received, the location following worked

tests/data/reply320002.txt

@@ -0,0 +1,5 @@
+HTTP/1.1 200 Followed here fine
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+
+If this is received, the location following worked

tests/data/reply33.txt

@@ -0,0 +1,7 @@
+HTTP/1.1 303 See Other
+Server: fake
+Location: /moo/moo/moo/320002
+
+This Location should be fetched with a GET!
+
+

tests/httpserver.pl

@@ -119,7 +119,7 @@ for ( $waitedpid = 0;
                 $testnum=$1;
 
                 if($verbose) {
-                    print STDERR "sending reply $testnum\n";
+                    print STDERR "OUT: sending reply $testnum\n";
                 }
             }
             else {

tests/runtests.pl

@@ -49,6 +49,7 @@ my $memanalyze="../memanalyze.pl";
 
 my $short;
 my $verbose;
+my $debugprotocol;
 my $anyway;
 
 #######################################################################
@@ -109,7 +110,8 @@ sub runhttpserver {
     }
 
     if ($RUNNING != 1) {
-        system("perl $srcdir/httpserver.pl $HOSTPORT &");
+        my $flag=$debugprotocol?"-v ":"";
+        system("perl $srcdir/httpserver.pl $flag $HOSTPORT &");
         sleep 1; # give it a little time to start
     }
     else {
@@ -150,7 +152,8 @@ sub runftpserver {
     }
 
     if ($RUNNING != 1) {
-        system("perl $srcdir/ftpserver.pl $FTPPORT &");
+        my $flag=$debugprotocol?"-v ":"";
+        system("perl $srcdir/ftpserver.pl $flag $FTPPORT &");
         sleep 1; # give it a little time to start
     }
     else {
@@ -504,6 +507,8 @@ sub singletest {
     unlink($STDOUT);
     unlink($STDERR);
 
+    unlink("$LOGDIR/upload.$NUMBER");  # remove upload leftovers
+    unlink($CURLOUT); # remove the downloaded results
     unlink($FTPDCMD); # remove the instructions for this test
 
     if($memory_debug) {
@@ -551,6 +556,10 @@ do {
         # verbose output
         $verbose=1;
     }
+    elsif ($ARGV[0] eq "-d") {
+        # have the servers display protocol output 
+        $debugprotocol=1;
+    }
     elsif($ARGV[0] eq "-s") {
         # short output
         $short=1;
@@ -564,6 +573,7 @@ do {
         print <<EOHELP
 Usage: runtests.pl [-h][-s][-v][numbers]
   -a       continue even if a test fails
+  -d       display server debug info
   -h       this help text
   -s       short output
   -v       verbose output