Das U-Boot: Universal Boot Loader

diff --git a/board/hymod/fetch.c b/board/hymod/fetch.c
new file mode 100644 (file)
index 0000000..1511b08
--- /dev/null
+++ b/board/hymod/fetch.c
@@ -0,0 +1,142 @@
+/*
+ * (C) Copyright 2001
+ * Murray Jensen, CSIRO Manufacturing Science and Technology,
+ * <Murray.Jensen@cmst.csiro.au>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <net.h>
+
+/* imports from common/main.c */
+extern char console_buffer[CFG_CBSIZE];
+
+int
+fetch_and_parse(bd_t *bd, char *fn, ulong addr, int (*cback)(uchar *, uchar *))
+{
+    char *ethaddr;
+    uchar *fp, *efp;
+
+    while ((ethaddr = getenv("ethaddr")) == NULL || *ethaddr == '\0') {
+
+       puts("*** Ethernet address is not set\n");
+
+       for (;;) {
+           int n;
+
+           n = readline("Enter board ethernet address: ");
+
+           if (n < 0) {
+               puts("\n");
+               return (0);
+           }
+
+           if (n == 0)
+               continue;
+
+           if (n == 17) {
+               int i;
+               char *p, *q;
+               uchar ea[6];
+
+               /* see if it looks like an ethernet address */
+
+               p = console_buffer;
+
+               for (i = 0; i < 6; i++) {
+                   char term = (i == 5 ? '\0' : ':');
+
+                   ea[i] = simple_strtol(p, &q, 16);
+
+                   if ((q - p) != 2 || *q++ != term)
+                       break;
+
+                   p = q;
+               }
+
+               if (i == 6) {
+                   /* it looks ok - set it */
+                   printf("Setting ethernet address to %s\n", console_buffer);
+                   setenv("ethaddr", console_buffer);
+
+                   puts("Remember to do a 'saveenv' to make it permanent\n");
+                   break;
+               }
+           }
+
+           printf("Invalid ethernet address (%s) - please re-enter\n",
+               console_buffer);
+       }
+    }
+
+    copy_filename(BootFile, fn, sizeof (BootFile));
+    load_addr = addr;
+
+    if (NetLoop(TFTP) == 0) {
+       printf("tftp transfer of file '%s' failed\n", fn);
+       return (0);
+    }
+
+    if (NetBootFileXferSize == 0) {
+       printf("can't determine size of file '%s'\n", fn);
+       return (0);
+    }
+
+    fp = (uchar *)load_addr;
+    efp = fp + NetBootFileXferSize;
+
+    do {
+       uchar *name, *value;
+
+       if (*fp == '#' || *fp == '\n') {
+           while (fp < efp && *fp++ != '\n')
+               ;
+           continue;
+       }
+
+       name = fp;
+
+       while (fp < efp && *fp != '=')
+           if (*fp++ == '\n')
+               name = fp;
+
+       if (fp >= efp)
+           break;
+
+       *fp++ = '\0';
+
+       value = fp;
+
+       while (fp < efp && *fp != '\n')
+           fp++;
+
+       /* ok if we go off the end here */
+
+       if (fp[-1] == '\r')
+           fp[-1] = '\0';
+       *fp++ = '\0';
+
+       if ((*cback)(name, value) == 0)
+           return (0);
+
+    } while (fp < efp);
+
+    return (1);
+}