misc: remove support for curl_off_t < 8 bytes

Closes #10597

configure.ac

@@ -3472,17 +3472,8 @@ AC_CHECK_TYPE(long long,
    longlong="yes"
 )
 
-
 if test ${ac_cv_sizeof_curl_off_t} -lt 8; then
-  AC_ARG_WITH(n64-deprecated,dnl
-AS_HELP_STRING([--with-n64-deprecated],[confirm you realize support for systems without 64 bit data types is going away]),
-  if test X"$withval" != Xno; then
-    OPT_N64_AWARE=$withval
-  fi
-)
-  if test -z "$OPT_N64_AWARE"; then
-    AC_MSG_ERROR([support for systems without 64 bit curl_off_t is deprecated, use --with-n64-deprecated until then])
-  fi
+  AC_MSG_ERROR([64 bit curl_off_t is required])
 fi
 
 # check for ssize_t

docs/DEPRECATE.md

@@ -6,27 +6,6 @@ email the
 as soon as possible and explain to us why this is a problem for you and
 how your use case cannot be satisfied properly using a workaround.
 
-## Support for systems without 64 bit data types
-
-curl will *require* support for a 64 bit data type (like `long long` or an
-alternative) to build. These days, few systems are used where no such type is
-around, so it is increasingly unnecessary to spend effort and time on
-maintaining this support. Also, supporting 32 bit values for some of those
-fields is complicated and hard to test.
-
-Adding this requirement will make the code simpler, easier to maintain and the
-test coverage better. It is a low price too, since virtually no users are
-still building curl on such systems.
-
-`long long` was not a standard type until C99, but has been supported by C89
-compilers since the 1990s.
-
-Starting in 8.0.0 (March 2023), the plan is to drop support.
-
-Starting in 7.86.0, building curl with configure requires the additional flag
-`--with-n64-deprecated` if the `curl_off_t` type on your system is smaller
-than 8 bytes, in an attempt to highlight these plans to affected users.
-
 ## NSS
 
 We remove support for building curl with the NSS TLS library in August 2023.
@@ -77,3 +56,4 @@ curl will remove the support for space-separated names in July 2024.
  - axTLS
  - PolarSSL
  - NPN
+ - Support for systems without 64 bit data types

lib/curl_setup.h

@@ -441,8 +441,8 @@
 #  endif
 #endif
 
-#if (SIZEOF_CURL_OFF_T == 4)
-#  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFF)
+#if (SIZEOF_CURL_OFF_T < 8)
+#error "too small curl_off_t"
 #else
    /* assume SIZEOF_CURL_OFF_T == 8 */
 #  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFFFFFFFFFF)

lib/progress.c

@@ -87,8 +87,6 @@ static char *max5data(curl_off_t bytes, char *max5)
               CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE,
               (bytes%ONE_MEGABYTE) / (ONE_MEGABYTE/CURL_OFF_T_C(10)) );
 
-#if (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 */
     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
@@ -111,15 +109,8 @@ static char *max5data(curl_off_t bytes, char *max5)
     /* up to 10000PB, display without decimal: XXXXP */
     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "P", bytes/ONE_PETABYTE);
 
-    /* 16384 petabytes (16 exabytes) is the maximum a 64 bit unsigned number
-       can hold, but our data type is signed so 8192PB will be the maximum. */
-
-#else
-
-  else
-    msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
-
-#endif
+  /* 16384 petabytes (16 exabytes) is the maximum a 64 bit unsigned number can
+     hold, but our data type is signed so 8192PB will be the maximum. */
 
   return max5;
 }

lib/smb.c

@@ -25,8 +25,7 @@
 
 #include "curl_setup.h"
 
-#if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE) &&  \
-  (SIZEOF_CURL_OFF_T > 4)
+#if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE)
 
 #define BUILDING_CURL_SMB_C
 

lib/version.c

@@ -357,8 +357,7 @@ static const char * const protocols[] = {
 #ifdef USE_SSH
   "sftp",
 #endif
-#if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE) && \
-   (SIZEOF_CURL_OFF_T > 4)
+#if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE)
   "smb",
 #  ifdef USE_SSL
   "smbs",

src/tool_cb_prg.c

@@ -116,8 +116,8 @@ static void fly(struct ProgressData *bar, bool moved)
 
 #define MAX_BARLENGTH 256
 
-#if (SIZEOF_CURL_OFF_T == 4)
-#  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFF)
+#if (SIZEOF_CURL_OFF_T < 8)
+#error "too small curl_off_t"
 #else
    /* assume SIZEOF_CURL_OFF_T == 8 */
 #  define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFFFFFFFFFF)

src/tool_filetime.c

@@ -39,7 +39,7 @@ curl_off_t getfiletime(const char *filename, struct GlobalConfig *global)
 /* Windows stat() may attempt to adjust the unix GMT file time by a daylight
    saving time offset and since it's GMT that is bad behavior. When we have
    access to a 64-bit type we can bypass stat and get the times directly. */
-#if defined(WIN32) && (SIZEOF_CURL_OFF_T >= 8)
+#if defined(WIN32)
   HANDLE hfile;
   TCHAR *tchar_filename = curlx_convert_UTF8_to_tchar((char *)filename);
 
@@ -85,8 +85,7 @@ curl_off_t getfiletime(const char *filename, struct GlobalConfig *global)
   return result;
 }
 
-#if defined(HAVE_UTIME) || defined(HAVE_UTIMES) ||      \
-  (defined(WIN32) && (SIZEOF_CURL_OFF_T >= 8))
+#if defined(HAVE_UTIME) || defined(HAVE_UTIMES) || defined(WIN32)
 void setfiletime(curl_off_t filetime, const char *filename,
                  struct GlobalConfig *global)
 {
@@ -94,7 +93,7 @@ void setfiletime(curl_off_t filetime, const char *filename,
 /* Windows utime() may attempt to adjust the unix GMT file time by a daylight
    saving time offset and since it's GMT that is bad behavior. When we have
    access to a 64-bit type we can bypass utime and set the times directly. */
-#if defined(WIN32) && (SIZEOF_CURL_OFF_T >= 8)
+#if defined(WIN32)
     HANDLE hfile;
     TCHAR *tchar_filename = curlx_convert_UTF8_to_tchar((char *)filename);
 
@@ -151,5 +150,5 @@ void setfiletime(curl_off_t filetime, const char *filename,
 #endif
   }
 }
-#endif /* defined(HAVE_UTIME) || defined(HAVE_UTIMES) || \
-          (defined(WIN32) && (SIZEOF_CURL_OFF_T >= 8)) */
+#endif /* defined(HAVE_UTIME) || defined(HAVE_UTIMES) ||        \
+          defined(WIN32) */

src/tool_progress.c

@@ -53,8 +53,6 @@ static char *max5data(curl_off_t bytes, char *max5)
               CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE,
               (bytes%ONE_MEGABYTE) / (ONE_MEGABYTE/CURL_OFF_T_C(10)) );
 
-#if (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 */
     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
@@ -77,16 +75,8 @@ static char *max5data(curl_off_t bytes, char *max5)
     /* up to 10000PB, display without decimal: XXXXP */
     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "P", bytes/ONE_PETABYTE);
 
-    /* 16384 petabytes (16 exabytes) is the maximum a 64 bit unsigned number
-       can hold, but our data type is signed so 8192PB will be the maximum. */
-
-#else
-
-  else
-    msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
-
-#endif
-
+  /* 16384 petabytes (16 exabytes) is the maximum a 64 bit unsigned number can
+     hold, but our data type is signed so 8192PB will be the maximum. */
   return max5;
 }
 

tests/libtest/lib557.c

@@ -1008,118 +1008,6 @@ static int test_curl_off_t_formatting(void)
   int num_cofft_tests = 0;
   int failed = 0;
 
-#if (SIZEOF_CURL_OFF_T == 2)
-
-  i = 1; co_test[i].num = MPRNT_OFF_T_C(0x7FFF); co_test[i].expected = "32767";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x7FFE); co_test[i].expected = "32766";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x7FFD); co_test[i].expected = "32765";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x7F00); co_test[i].expected = "32512";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x07F0); co_test[i].expected = "2032";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x007F); co_test[i].expected = "127";
-
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x7000); co_test[i].expected = "28672";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0700); co_test[i].expected = "1792";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0070); co_test[i].expected = "112";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0007); co_test[i].expected = "7";
-
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x5000); co_test[i].expected = "20480";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0500); co_test[i].expected = "1280";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0050); co_test[i].expected = "80";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0005); co_test[i].expected = "5";
-
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0001); co_test[i].expected = "1";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0000); co_test[i].expected = "0";
-
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7FFF) -MPRNT_OFF_T_C(1); co_test[i].expected = "-32768";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7FFE) -MPRNT_OFF_T_C(1); co_test[i].expected = "-32767";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7FFD) -MPRNT_OFF_T_C(1); co_test[i].expected = "-32766";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7F00) -MPRNT_OFF_T_C(1); co_test[i].expected = "-32513";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x07F0) -MPRNT_OFF_T_C(1); co_test[i].expected = "-2033";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x007F) -MPRNT_OFF_T_C(1); co_test[i].expected = "-128";
-
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-28673";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x0700) -MPRNT_OFF_T_C(1); co_test[i].expected = "-1793";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x0070) -MPRNT_OFF_T_C(1); co_test[i].expected = "-113";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x0007) -MPRNT_OFF_T_C(1); co_test[i].expected = "-8";
-
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x5000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-20481";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x0500) -MPRNT_OFF_T_C(1); co_test[i].expected = "-1281";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x0050) -MPRNT_OFF_T_C(1); co_test[i].expected = "-81";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x0005) -MPRNT_OFF_T_C(1); co_test[i].expected = "-6";
-
-  i++; co_test[i].num =  MPRNT_OFF_T_C(0x0000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-1";
-
-  num_cofft_tests = i;
-
-#elif (SIZEOF_CURL_OFF_T == 4)
-
-  i = 1; co_test[i].num = MPRNT_OFF_T_C(0x7FFFFFFF); co_test[i].expected = "2147483647";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x7FFFFFFE); co_test[i].expected = "2147483646";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x7FFFFFFD); co_test[i].expected = "2147483645";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x7FFF0000); co_test[i].expected = "2147418112";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00007FFF); co_test[i].expected = "32767";
-
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x7F000000); co_test[i].expected = "2130706432";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x007F0000); co_test[i].expected = "8323072";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00007F00); co_test[i].expected = "32512";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x0000007F); co_test[i].expected = "127";
-
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x70000000); co_test[i].expected = "1879048192";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x07000000); co_test[i].expected = "117440512";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00700000); co_test[i].expected = "7340032";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00070000); co_test[i].expected = "458752";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00007000); co_test[i].expected = "28672";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00000700); co_test[i].expected = "1792";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00000070); co_test[i].expected = "112";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00000007); co_test[i].expected = "7";
-
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x50000000); co_test[i].expected = "1342177280";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x05000000); co_test[i].expected = "83886080";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00500000); co_test[i].expected = "5242880";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00050000); co_test[i].expected = "327680";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00005000); co_test[i].expected = "20480";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00000500); co_test[i].expected = "1280";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00000050); co_test[i].expected = "80";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00000005); co_test[i].expected = "5";
-
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00000001); co_test[i].expected = "1";
-  i++; co_test[i].num = MPRNT_OFF_T_C(0x00000000); co_test[i].expected = "0";
-
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7FFFFFFF) -MPRNT_OFF_T_C(1); co_test[i].expected = "-2147483648";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7FFFFFFE) -MPRNT_OFF_T_C(1); co_test[i].expected = "-2147483647";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7FFFFFFD) -MPRNT_OFF_T_C(1); co_test[i].expected = "-2147483646";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7FFF0000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-2147418113";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00007FFF) -MPRNT_OFF_T_C(1); co_test[i].expected = "-32768";
-
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x7F000000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-2130706433";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x007F0000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-8323073";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00007F00) -MPRNT_OFF_T_C(1); co_test[i].expected = "-32513";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x0000007F) -MPRNT_OFF_T_C(1); co_test[i].expected = "-128";
-
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x70000000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-1879048193";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x07000000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-117440513";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00700000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-7340033";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00070000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-458753";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00007000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-28673";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00000700) -MPRNT_OFF_T_C(1); co_test[i].expected = "-1793";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00000070) -MPRNT_OFF_T_C(1); co_test[i].expected = "-113";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00000007) -MPRNT_OFF_T_C(1); co_test[i].expected = "-8";
-
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x50000000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-1342177281";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x05000000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-83886081";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00500000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-5242881";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00050000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-327681";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00005000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-20481";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00000500) -MPRNT_OFF_T_C(1); co_test[i].expected = "-1281";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00000050) -MPRNT_OFF_T_C(1); co_test[i].expected = "-81";
-  i++; co_test[i].num = -MPRNT_OFF_T_C(0x00000005) -MPRNT_OFF_T_C(1); co_test[i].expected = "-6";
-
-  i++; co_test[i].num =  MPRNT_OFF_T_C(0x00000000) -MPRNT_OFF_T_C(1); co_test[i].expected = "-1";
-
-  num_cofft_tests = i;
-
-#elif (SIZEOF_CURL_OFF_T == 8)
-
   i = 1; co_test[i].num = MPRNT_OFF_T_C(0x7FFFFFFFFFFFFFFF); co_test[i].expected = "9223372036854775807";
   i++; co_test[i].num = MPRNT_OFF_T_C(0x7FFFFFFFFFFFFFFE); co_test[i].expected = "9223372036854775806";
   i++; co_test[i].num = MPRNT_OFF_T_C(0x7FFFFFFFFFFFFFFD); co_test[i].expected = "9223372036854775805";
@@ -1201,8 +1089,6 @@ static int test_curl_off_t_formatting(void)
 
   num_cofft_tests = i;
 
-#endif
-
   for(i = 1; i <= num_cofft_tests; i++) {
 
     for(j = 0; j<BUFSZ; j++)