newlib-2.1.0

git-svn-id: svn://kolibrios.org@4921 a494cfbc-eb01-0410-851d-a64ba20cac60
2014-05-10 22:12:19 +00:00
parent 914e67bd24
commit 7315bb05c0
204 changed files with 10781 additions and 3986 deletions
--- a/contrib/sdk/sources/newlib/libc/sys/open.c
+++ b/contrib/sdk/sources/newlib/libc/sys/open.c
@@ -0,0 +1,104 @@
+/* open.c -- open a file.
+ *
+ * Copyright (c) 1995 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/kos_io.h>
+#include "glue.h"
+#include "io.h"
+
+#undef erro
+extern int errno;
+
+int open (const char * filename, int flags, ...)
+{
+    __io_handle *ioh;
+    fileinfo_t   info;
+    int iomode, rwmode, offset;
+    int hid;
+    int err;
+
+    hid = __io_alloc();
+    if(hid < 0)
+    {
+        errno = EMFILE;
+        return (-1);
+    };
+
+//    path = getfullpath(name);
+
+    err = get_fileinfo(filename, &info);
+
+    if( flags & O_EXCL &&
+        flags & O_CREAT )
+    {
+        if( !err )
+        {
+            errno = EEXIST;
+            return (-1);
+        };
+    }
+
+    if( err )
+    {
+        if(flags & O_CREAT)
+            err=create_file(filename);
+        if( err )
+        {
+            errno = EACCES;
+            return -1;
+        };
+    };
+
+    if( flags & O_TRUNC )
+        set_file_size(filename, 0);
+
+    ioh = &__io_tab[hid];
+
+    rwmode = flags & ( O_RDONLY | O_WRONLY | O_RDWR );
+
+    iomode = 0;
+    offset = 0;
+
+    if( rwmode == O_RDWR )
+        iomode |= _READ | _WRITE;
+    else if( rwmode == O_RDONLY)
+        iomode |= _READ;
+    else if( rwmode == O_WRONLY)
+        iomode |= _WRITE;
+
+    if( flags & O_APPEND )
+    {
+        iomode |= _APPEND;
+        offset = info.size;
+    };
+
+    if( flags & (O_BINARY|O_TEXT) )
+    {
+        if( flags & O_BINARY )
+            iomode |= _BINARY;
+    } else
+        iomode |= _BINARY;
+
+    ioh->name   = strdup(filename);
+    ioh->offset = offset;
+    ioh->mode   = iomode;
+    ioh->read   = read_file;
+    ioh->write  = write_file;
+
+    return hid;
+};
+
+