zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/stdio/_fopen.c b/ap/build/uClibc/libc/stdio/_fopen.c
new file mode 100644
index 0000000..5bc61cf
--- /dev/null
+++ b/ap/build/uClibc/libc/stdio/_fopen.c
@@ -0,0 +1,233 @@
+/* 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"
+
+
+/*
+ * Cases:
+ * fopen64 : filename != NULL, stream == NULL, filedes == -2
+ * fopen : filename != NULL, stream == NULL, filedes == -1
+ * freopen : filename != NULL, stream != NULL, filedes == -1
+ * fdopen : filename == NULL, stream == NULL, filedes valid
+ *
+ * fsfopen : filename != NULL, stream != NULL, filedes == -1
+ */
+
+#if (O_ACCMODE != 3) || (O_RDONLY != 0) || (O_WRONLY != 1) || (O_RDWR != 2)
+#error Assumption violated - mode constants
+#endif
+
+#ifndef O_LARGEFILE
+#define O_LARGEFILE 0
+#endif
+
+/* Internal function -- reentrant (locks open file list) */
+
+FILE attribute_hidden *_stdio_fopen(intptr_t fname_or_mode,
+ register const char * __restrict mode,
+ register FILE * __restrict stream, int filedes)
+{
+ __mode_t open_mode;
+ int i;
+
+ /* Parse the specified mode. */
+ open_mode = O_RDONLY;
+ if (*mode != 'r') { /* Not read... */
+ open_mode = (O_WRONLY | O_CREAT | O_TRUNC);
+ if (*mode != 'w') { /* Not write (create or truncate)... */
+ open_mode = (O_WRONLY | O_CREAT | O_APPEND);
+ if (*mode != 'a') { /* Not write (create or append)... */
+ DO_EINVAL:
+ __set_errno(EINVAL); /* So illegal mode. */
+ if (stream) {
+ FREE_STREAM:
+ assert(!(stream->__modeflags & __FLAG_FREEBUF));
+ __STDIO_STREAM_FREE_FILE(stream);
+ }
+ return NULL;
+ }
+ }
+ }
+
+ if ((mode[1] == 'b')) { /* Binary mode (NO-OP currently). */
+ ++mode;
+ }
+
+ if (mode[1] == '+') { /* Read and Write. */
+ ++mode;
+ open_mode |= (O_RDONLY | O_WRONLY);
+ open_mode += (O_RDWR - (O_RDONLY | O_WRONLY));
+ }
+
+#ifdef __UCLIBC_MJN3_ONLY__
+#warning CONSIDER: Implement glibc ccs option to bind a codeset?
+#warning CONSIDER: Implement glibc mmap option for readonly files?
+#warning CONSIDER: Implement a text mode using custom read/write funcs?
+#endif
+#if defined(__UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE__) || defined(__UCLIBC_HAS_FOPEN_LARGEFILE_MODE__) || \
+ defined(__UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE__)
+
+ while (*++mode) {
+# ifdef __UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE__
+ if (*mode == 'x') { /* Open exclusive (a glibc extension). */
+ open_mode |= O_EXCL;
+ continue;
+ }
+# endif
+# ifdef __UCLIBC_HAS_FOPEN_LARGEFILE_MODE__
+ if (*mode == 'F') { /* Open as large file (uClibc extension). */
+ open_mode |= O_LARGEFILE;
+ continue;
+ }
+# endif
+# ifdef __UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE__
+ if (*mode == 'e') { /* Close on exec (a glibc extension). */
+ open_mode |= O_CLOEXEC;
+ continue;
+ }
+# endif
+ }
+
+#endif
+
+ if (!stream) { /* Need to allocate a FILE (not freopen). */
+ if ((stream = malloc(sizeof(FILE))) == NULL) {
+ return stream;
+ }
+ stream->__modeflags = __FLAG_FREEFILE;
+#ifdef __STDIO_BUFFERS
+ stream->__bufstart = NULL; /* We allocate a buffer below. */
+#endif
+#ifdef __UCLIBC_HAS_THREADS__
+ /* We only initialize the mutex in the non-freopen case. */
+ /* stream->__user_locking = _stdio_user_locking; */
+ STDIO_INIT_MUTEX(stream->__lock);
+#endif
+ }
+
+#ifdef __UCLIBC_MJN3_ONLY__
+#warning TODO: Verify fdopen append behavior of glibc.
+#endif
+
+ if (filedes >= 0) { /* Handle fdopen trickery. */
+ stream->__filedes = filedes;
+ /* NOTE: it is insufficient to just check R/W/RW agreement.
+ * We must also check largefile compatibility if applicable.
+ * Also, if append mode is desired for fdopen but O_APPEND isn't
+ * currently set, then set it as recommended by SUSv3. However,
+ * if append mode is not specified for fdopen but O_APPEND is set,
+ * leave it set (glibc compat). */
+ i = (open_mode & (O_ACCMODE|O_LARGEFILE)) + 1;
+
+ /* NOTE: fopencookie needs changing if the basic check changes! */
+ if ((i & ((int)fname_or_mode + 1)) != i) /* Basic agreement? */
+ goto DO_EINVAL;
+ if ((open_mode & ~(__mode_t)fname_or_mode) & O_APPEND) {
+ if (fcntl(filedes, F_SETFL, O_APPEND)) /* Need O_APPEND. */
+ goto DO_EINVAL;
+ }
+ /* For later... to reflect largefile setting in stream flags. */
+ __STDIO_WHEN_LFS( open_mode |= (((__mode_t) fname_or_mode)
+ & O_LARGEFILE) );
+ } else {
+ __STDIO_WHEN_LFS( if (filedes < -1) open_mode |= O_LARGEFILE );
+ if ((stream->__filedes = open(((const char *) fname_or_mode),
+ open_mode, 0666)) < 0) {
+ goto FREE_STREAM;
+ }
+ }
+
+ stream->__modeflags &= __FLAG_FREEFILE;
+/* stream->__modeflags &= ~(__FLAG_READONLY|__FLAG_WRITEONLY); */
+
+ stream->__modeflags |= /* Note: Makes assumptions about flag vals! */
+#if (O_APPEND != __FLAG_APPEND) || ((O_LARGEFILE != __FLAG_LARGEFILE) && (O_LARGEFILE != 0))
+# if (O_APPEND != __FLAG_APPEND)
+ ((open_mode & O_APPEND) ? __FLAG_APPEND : 0) |
+# else
+ (open_mode & O_APPEND) |
+# endif
+# if (O_LARGEFILE != __FLAG_LARGEFILE) && (O_LARGEFILE != 0)
+ ((open_mode & O_LARGEFILE) ? __FLAG_LARGEFILE : 0) |
+# else
+ (open_mode & O_LARGEFILE) |
+# endif
+#else
+ (open_mode & (O_APPEND|O_LARGEFILE)) | /* i386 linux and elks */
+#endif
+ ((((open_mode & O_ACCMODE) + 1) ^ 0x03) * __FLAG_WRITEONLY);
+
+#ifdef __STDIO_BUFFERS
+ if (stream->__filedes != INT_MAX) {
+ /* NB: fopencookie uses bogus filedes == INT_MAX,
+ * avoiding isatty() in that case.
+ */
+ i = errno; /* preserve errno against isatty call. */
+ if (isatty(stream->__filedes))
+ stream->__modeflags |= __FLAG_LBF;
+ __set_errno(i);
+ }
+
+ if (!stream->__bufstart) {
+ if ((stream->__bufstart = malloc(BUFSIZ)) != NULL) {
+ stream->__bufend = stream->__bufstart + BUFSIZ;
+ stream->__modeflags |= __FLAG_FREEBUF;
+ } else {
+# if __STDIO_BUILTIN_BUF_SIZE > 0
+ stream->__bufstart = stream->__builtinbuf;
+ stream->__bufend = stream->__builtinbuf + sizeof(stream->__builtinbuf);
+# else /* __STDIO_BUILTIN_BUF_SIZE > 0 */
+ stream->__bufend = stream->__bufstart;
+# endif /* __STDIO_BUILTIN_BUF_SIZE > 0 */
+ }
+ }
+
+ __STDIO_STREAM_DISABLE_GETC(stream);
+ __STDIO_STREAM_DISABLE_PUTC(stream);
+ __STDIO_STREAM_INIT_BUFREAD_BUFPOS(stream);
+#endif
+
+ __STDIO_STREAM_RESET_GCS(stream);
+
+#ifdef __UCLIBC_HAS_WCHAR__
+ stream->__ungot_width[0] = 0;
+#endif
+#ifdef __STDIO_MBSTATE
+ __INIT_MBSTATE(&(stream->__state));
+#endif
+
+#ifdef __UCLIBC_HAS_THREADS__
+ /* Even in the freopen case, we reset the user locking flag. */
+ stream->__user_locking = _stdio_user_locking;
+ /* STDIO_INIT_MUTEX(stream->__lock); */
+#endif
+
+#ifdef __STDIO_HAS_OPENLIST
+#if defined(__UCLIBC_HAS_THREADS__) && defined(__STDIO_BUFFERS)
+ if (!(stream->__modeflags & __FLAG_FREEFILE))
+ {
+ /* An freopen call so the file was never removed from the list. */
+ }
+ else
+#endif
+ {
+ /* We have to lock the del mutex in case another thread wants to fclose()
+ * the last file. */
+ __STDIO_THREADLOCK_OPENLIST_DEL;
+ __STDIO_THREADLOCK_OPENLIST_ADD;
+ stream->__nextopen = _stdio_openlist; /* New files are inserted at */
+ _stdio_openlist = stream; /* the head of the list. */
+ __STDIO_THREADUNLOCK_OPENLIST_ADD;
+ __STDIO_THREADUNLOCK_OPENLIST_DEL;
+ }
+#endif
+
+ __STDIO_STREAM_VALIDATE(stream);
+
+ return stream;
+}