Check at the write() call to work around the msdos bug in OSX actually

succeeds and throw an error if it does not.  #ifdef out the work-around
for all platforms other than OSX.  Ticket #3633. (CVS 6237)

FossilOrigin-Name: b054b569172c53f4e185e4a64f41d08784aa0f8b

manifest

@@ -1,5 +1,5 @@
-C Add\sa\sspecial\srule\sto\sthe\samalgamation\sgenerator\sto\sdeal\swith\nthe\ssqlite3OsDlSym\sfunction.\s\sTicket\s#3631.\s(CVS\s6236)
-D 2009-02-03T13:51:18
+C Check\sat\sthe\swrite()\scall\sto\swork\saround\sthe\smsdos\sbug\sin\sOSX\sactually\nsucceeds\sand\sthrow\san\serror\sif\sit\sdoes\snot.\s\s#ifdef\sout\sthe\swork-around\nfor\sall\splatforms\sother\sthan\sOSX.\s\sTicket\s#3633.\s(CVS\s6237)
+D 2009-02-03T15:27:02
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in 3871d308188cefcb7c5ab20da4c7b6aad023bc52
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -140,7 +140,7 @@ F src/os.c ed93a6b46132a602c4fd7a58142e2981c829c79d
 F src/os.h f996ab57d2035a20e63173419055608548a834c6
 F src/os_common.h 24525d8b7bce66c374dfc1810a6c9043f3359b60
 F src/os_os2.c bed77dc26e3a95ce4a204936b9a1ca6fe612fcc5
-F src/os_unix.c c74255cc1fcddc38fc3cc1dcf70c2325d3c2948e
+F src/os_unix.c f0fce3042011d462b8ae633564a5668260bd3636
 F src/os_win.c ec133f2a3c0da786995ea09ba67056af8f18cc2e
 F src/pager.c 72f4e7b3076584889ce6286cd15ff2d985325026
 F src/pager.h eccf5cdeebd79006ba7f9577dd30d8179b1430da
@@ -695,7 +695,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
 F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
-P 1ffe44e9d6b49346a75850a977953de12c127069
-R 35f24f396c22640dc5d33d1ae8df531a
+P 876f874c6e2e6e7763083e6761eedc10a4522ec9
+R 03f24e95410db9478f89a6a5008336d8
 U drh
-Z a395923455cb532eb6d33af3163637d2
+Z b153f89d67dc071f437e82912b395cd3

manifest.uuid

@@ -1 +1 @@
-876f874c6e2e6e7763083e6761eedc10a4522ec9
+b054b569172c53f4e185e4a64f41d08784aa0f8b

src/os_unix.c

@@ -43,7 +43,7 @@
 **   *  Definitions of sqlite3_vfs objects for all locking methods
 **      plus implementations of sqlite3_os_init() and sqlite3_os_end().
 **
-** $Id: os_unix.c,v 1.238 2009/01/16 23:47:42 drh Exp $
+** $Id: os_unix.c,v 1.239 2009/02/03 15:27:02 drh Exp $
 */
 #include "sqliteInt.h"
 #if SQLITE_OS_UNIX              /* This file is used on unix only */
@@ -920,6 +920,7 @@ static int findLockInfo(
     return SQLITE_IOERR;
   }
 
+#ifdef __APPLE__
   /* On OS X on an msdos filesystem, the inode number is reported
   ** incorrectly for zero-size files.  See ticket #3260.  To work
   ** around this problem (we consider it a bug in OS X, not SQLite)
@@ -931,13 +932,17 @@ static int findLockInfo(
   ** the first page of the database, no damage is done.
   */
   if( statbuf.st_size==0 ){
-    write(fd, "S", 1);
+    rc = write(fd, "S", 1);
+    if( rc!=1 ){
+      return SQLITE_IOERR;
+    }
     rc = fstat(fd, &statbuf);
     if( rc!=0 ){
       pFile->lastErrno = errno;
       return SQLITE_IOERR;
     }
   }
+#endif
 
   memset(&lockKey, 0, sizeof(lockKey));
   lockKey.fid.dev = statbuf.st_dev;