rename patch-cmdline and add code for patching DTB files into kernel images

[openwrt/openwrt.git] / tools / patch-cmdline / src / patch-cmdline.c

diff --git a/tools/patch-cmdline/src/patch-cmdline.c b/tools/patch-cmdline/src/patch-cmdline.c
deleted file mode 100644 (file)
index 571f848..0000000
--- a/tools/patch-cmdline/src/patch-cmdline.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * patch-cmdline.c - patch the kernel command line on rb532
- *
- * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
- *
- * 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 <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <string.h>
-
-#define SEARCH_SPACE   (16 * 1024)
-#define CMDLINE_MAX            512
-
-int main(int argc, char **argv)
-{
-       int fd, found = 0, len, ret = -1;
-       char *ptr, *p;
-
-       if (argc != 3) {
-               fprintf(stderr, "Usage: %s <file> <cmdline>\n", argv[0]);
-               goto err1;
-       }
-       len = strlen(argv[2]);
-       if (len + 9 > CMDLINE_MAX) {
-               fprintf(stderr, "Command line string too long\n");
-               goto err1;
-       }
-       
-       if (((fd = open(argv[1], O_RDWR)) < 0) ||
-               (ptr = (char *) mmap(0, SEARCH_SPACE + CMDLINE_MAX, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1)) {
-               fprintf(stderr, "Could not open kernel image");
-               goto err2;
-       }
-       
-       for (p = ptr; p < (ptr + SEARCH_SPACE); p += 4) {
-               if (memcmp(p, "CMDLINE:", 8) == 0) {
-                       found = 1;
-                       p += 8;
-                       break;
-               }
-       }
-       if (!found) {
-               fprintf(stderr, "Command line marker not found!\n");
-               goto err3;
-       }
-
-       memset(p, 0, CMDLINE_MAX - 8);
-       strcpy(p, argv[2]);
-       msync(p, CMDLINE_MAX, MS_SYNC|MS_INVALIDATE);
-       ret = 0;
-
-err3:
-       munmap((void *) ptr, len);
-err2:
-       if (fd > 0)
-               close(fd);
-err1:
-       return ret;
-}