From 3e2487493ef28ea9e44931faffb04e89ed3aae8d Mon Sep 17 00:00:00 2001
From: Yang Tse <yangsita@gmail.com>
Date: Tue, 26 Aug 2008 01:40:19 +0000
Subject: [PATCH] Use SIZEOF_OFF_T definition from config file

---
 lib/progress.c |  2 +-
 lib/setup.h    | 26 ++++++++++++++++++++++++++
 lib/version.c  | 12 ++----------
 src/main.c     | 41 ++++++++++++++++++++++++++++++-----------
 4 files changed, 59 insertions(+), 22 deletions(-)

diff --git a/lib/progress.c b/lib/progress.c
index 939e7dbcf..1c997e04d 100644
--- a/lib/progress.c
+++ b/lib/progress.c
@@ -78,7 +78,7 @@ static char *max5data(curl_off_t bytes, char *max5)
               bytes/ONE_MEGABYTE,
              (bytes%ONE_MEGABYTE) / (ONE_MEGABYTE/CURL_OFF_T_C(10)) );
 
-#if CURL_SIZEOF_CURL_OFF_T > 4
+#if (CURL_SIZEOF_CURL_OFF_T > 4)
 
   else if(bytes < CURL_OFF_T_C(10000) * ONE_MEGABYTE)
     /* 'XXXXM' is good until we're at 10000MB or above */
diff --git a/lib/setup.h b/lib/setup.h
index 42d6d01af..4268b9bf6 100644
--- a/lib/setup.h
+++ b/lib/setup.h
@@ -302,6 +302,32 @@
 #  define struct_stat struct stat
 #endif
 
+/*
+ * Default sizeof(off_t) in case it hasn't been defined in config file.
+ */
+
+#ifndef SIZEOF_OFF_T
+#  if defined(__VMS) && (defined(__alpha) || defined(__ia64))
+#    if defined(_LARGEFILE)
+#      define SIZEOF_OFF_T 8
+#    endif
+#  elif defined(__OS400__) && defined(__ILEC400__)
+#    if defined(_LARGE_FILES)
+#      define SIZEOF_OFF_T 8
+#    endif
+#  elif defined(__MVS__) && defined(__IBMC__)
+#    if defined(_LP64) || defined(_LARGE_FILES)
+#      define SIZEOF_OFF_T 8
+#    endif
+#  elif defined(__370__) && defined(__IBMC__)
+#    if defined(_LP64) || defined(_LARGE_FILES)
+#      define SIZEOF_OFF_T 8
+#    endif
+#  else
+#    define SIZEOF_OFF_T 4
+#  endif
+#endif
+
 /* Below we define some functions. They should
    1. close a socket
 
diff --git a/lib/version.c b/lib/version.c
index 5b9ccca3d..2e8f1b410 100644
--- a/lib/version.c
+++ b/lib/version.c
@@ -190,16 +190,8 @@ static curl_version_info_data version_info = {
 #ifdef HAVE_SPNEGO
   | CURL_VERSION_SPNEGO
 #endif
-/*
- * FIXME before 7.19.0 release.
- *
- * libcurl is largefile enabled when (CURL_SIZEOF_CURL_OFF_T > 4) _AND_
- * libcurl has been built with sizeof(system off_t) > 4 or when large
- * file support is available even with sizeof(system off_t) <= 4.
- *
- * Until this is adjusted, only the (CURL_SIZEOF_CURL_OFF_T > 4) check is done.
- */
-#if (CURL_SIZEOF_CURL_OFF_T > 4)
+#if (CURL_SIZEOF_CURL_OFF_T > 4) && \
+    ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
   | CURL_VERSION_LARGEFILE
 #endif
 #if defined(CURL_DOES_CONVERSIONS)
diff --git a/src/main.c b/src/main.c
index 72a53163e..62c34cbdf 100644
--- a/src/main.c
+++ b/src/main.c
@@ -242,6 +242,32 @@ typedef enum {
 #  define struct_stat struct stat
 #endif
 
+/*
+ * Default sizeof(off_t) in case it hasn't been defined in config file.
+ */
+
+#ifndef SIZEOF_OFF_T
+#  if defined(__VMS) && (defined(__alpha) || defined(__ia64))
+#    if defined(_LARGEFILE)
+#      define SIZEOF_OFF_T 8
+#    endif
+#  elif defined(__OS400__) && defined(__ILEC400__)
+#    if defined(_LARGE_FILES)
+#      define SIZEOF_OFF_T 8
+#    endif
+#  elif defined(__MVS__) && defined(__IBMC__)
+#    if defined(_LP64) || defined(_LARGE_FILES)
+#      define SIZEOF_OFF_T 8
+#    endif
+#  elif defined(__370__) && defined(__IBMC__)
+#    if defined(_LP64) || defined(_LARGE_FILES)
+#      define SIZEOF_OFF_T 8
+#    endif
+#  else
+#    define SIZEOF_OFF_T 4
+#  endif
+#endif
+
 #ifdef CURL_DOES_CONVERSIONS
 #ifdef HAVE_ICONV
 iconv_t inbound_cd  = (iconv_t)-1;
@@ -3205,12 +3231,6 @@ struct InStruct {
 
 #define MAX_SEEK 2147483647
 
-#ifndef SIZEOF_OFF_T
-/* (Jan 11th 2008) this is a reasonably new define in the config.h so there
-   might be older handicrafted configs that don't define it properly and then
-   we assume 32bit off_t */
-#define SIZEOF_OFF_T 4
-#endif
 /*
  * my_seek() is the CURLOPT_SEEKFUNCTION we use
  */
@@ -3218,11 +3238,10 @@ static int my_seek(void *stream, curl_off_t offset, int whence)
 {
   struct InStruct *in=(struct InStruct *)stream;
 
-#if (CURL_SIZEOF_CURL_OFF_T > SIZEOF_OFF_T) && !defined(lseek)
-  /* The sizeof check following here is only interesting if curl_off_t is
-     larger than off_t, but also not on windows-like systems for which lseek
-     is a defined macro that works around the 32bit off_t-problem and thus do
-     64bit seeks correctly anyway */
+#if (CURL_SIZEOF_CURL_OFF_T > SIZEOF_OFF_T) && !defined(USE_WIN32_LARGE_FILES)
+  /* The offset check following here is only interesting if curl_off_t is
+     larger than off_t and we are not using the WIN32 large file support
+     macros that provide the support to do 64bit seeks correctly */
 
   if(offset > MAX_SEEK) {
     /* Some precaution code to work around problems with different data sizes