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authorManuel Novoa III <mjn3@codepoet.org>2004-02-11 23:48:50 +0000
committerManuel Novoa III <mjn3@codepoet.org>2004-02-11 23:48:50 +0000
commit082e680bd54e999f2bb4eb77141958938b1e9ee9 (patch)
tree203c45b85ca608e1550d8ffc459456fc9cf0b30b /libc/stdio/ftello.c
parent17c21765b4a97c6f0b74ba8466073e5a3f97cdee (diff)
New stdio core. Should be more maintainable. Fixes a couple of bugs.
Codepaths streamlined. Improved performance for nonthreaded apps when linked with a thread-enabled libc. Minor iconv bug and some locale/thread related startup issues fixed. These showed up in getting a gcj-compiled java helloworld app running. Removed some old extension functions... _stdio_fdout and _stdio_fsfopen.
Diffstat (limited to 'libc/stdio/ftello.c')
-rw-r--r--libc/stdio/ftello.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/libc/stdio/ftello.c b/libc/stdio/ftello.c
new file mode 100644
index 000000000..7092f34cf
--- /dev/null
+++ b/libc/stdio/ftello.c
@@ -0,0 +1,61 @@
+/* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ *
+ * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details.
+ */
+
+#include "_stdio.h"
+
+#ifdef __DO_LARGEFILE
+# ifndef __UCLIBC_HAS_LFS__
+# error large file support is not enabled!
+# endif
+
+# define FTELL __ftello64
+# define OFFSET_TYPE __off64_t
+
+weak_alias(__ftello64,ftello64);
+
+#else
+
+# define FTELL ftell
+# define OFFSET_TYPE long int
+
+weak_alias(ftell,ftello);
+
+#endif
+
+OFFSET_TYPE FTELL(register FILE *stream)
+{
+#if defined(__UCLIBC_HAS_LFS__) && !defined(__DO_LARGEFILE)
+
+ __offmax_t pos = __ftello64(stream);
+
+ if ((sizeof(long) >= sizeof(__offmax_t)) || (((long) pos) == pos)) {
+ return ((long) pos);
+ } else {
+ __set_errno(EOVERFLOW);
+ return -1;
+ }
+
+#else
+
+ __offmax_t pos = 0;
+ __STDIO_AUTO_THREADLOCK_VAR;
+
+ __STDIO_AUTO_THREADLOCK(stream);
+
+ __STDIO_STREAM_VALIDATE(stream);
+
+ if ((__SEEK(stream, &pos, SEEK_CUR) < 0)
+ || (__stdio_adjust_position(stream, &pos) < 0)) {
+ pos = -1;
+ }
+
+ __STDIO_AUTO_THREADUNLOCK(stream);
+
+ return pos;
+
+#endif
+}