Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 108 insertions, 0 deletions

diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c
new file mode 100644
index 000000000000..f0b888f66e05
--- /dev/null
+++ b/arch/um/drivers/fd.c
@@ -0,0 +1,108 @@
+/* 
+ * Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <termios.h>
+#include <errno.h>
+#include "user.h"
+#include "user_util.h"
+#include "chan_user.h"
+
+struct fd_chan {
+        int fd;
+        int raw;
+        struct termios tt;
+        char str[sizeof("1234567890\0")];
+};
+
+static void *fd_init(char *str, int device, struct chan_opts *opts)
+{
+        struct fd_chan *data;
+        char *end;
+        int n;
+
+        if(*str != ':'){
+                printk("fd_init : channel type 'fd' must specify a file "
+                       "descriptor\n");
+                return(NULL);
+        }
+        str++;
+        n = strtoul(str, &end, 0);
+        if((*end != '\0') || (end == str)){
+                printk("fd_init : couldn't parse file descriptor '%s'\n", str);
+                return(NULL);
+        }
+        data = um_kmalloc(sizeof(*data));
+        if(data == NULL) return(NULL);
+        *data = ((struct fd_chan) { .fd         = n,
+                                    .raw        = opts->raw });
+        return(data);
+}
+
+static int fd_open(int input, int output, int primary, void *d, char **dev_out)
+{
+        struct fd_chan *data = d;
+        int err;
+
+        if(data->raw && isatty(data->fd)){
+                CATCH_EINTR(err = tcgetattr(data->fd, &data->tt));
+                if(err)
+                        return(err);
+
+                err = raw(data->fd);
+                if(err)
+                        return(err);
+        }
+        sprintf(data->str, "%d", data->fd);
+        *dev_out = data->str;
+        return(data->fd);
+}
+
+static void fd_close(int fd, void *d)
+{
+        struct fd_chan *data = d;
+        int err;
+
+        if(data->raw && isatty(fd)){
+                CATCH_EINTR(err = tcsetattr(fd, TCSAFLUSH, &data->tt));
+                if(err)
+                        printk("Failed to restore terminal state - "
+                               "errno = %d\n", -err);
+                data->raw = 0;
+        }
+}
+
+static int fd_console_write(int fd, const char *buf, int n, void *d)
+{
+        struct fd_chan *data = d;
+
+        return(generic_console_write(fd, buf, n, &data->tt));
+}
+
+struct chan_ops fd_ops = {
+        .type           = "fd",
+        .init           = fd_init,
+        .open           = fd_open,
+        .close          = fd_close,
+        .read           = generic_read,
+        .write          = generic_write,
+        .console_write  = fd_console_write,
+        .window_size    = generic_window_size,
+        .free           = generic_free,
+        .winch          = 1,
+};
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */