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, 163 insertions, 0 deletions

diff --git a/scripts/binoffset.c b/scripts/binoffset.c
new file mode 100644
index 000000000000..591309d85518
--- /dev/null
+++ b/scripts/binoffset.c
@@ -0,0 +1,163 @@
+/***************************************************************************
+ * binoffset.c
+ * (C) 2002 Randy Dunlap <rddunlap@osdl.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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+# binoffset.c:
+# - searches a (binary) file for a specified (binary) pattern
+# - returns the offset of the located pattern or ~0 if not found
+# - exits with exit status 0 normally or non-0 if pattern is not found
+#   or any other error occurs.
+
+****************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#define VERSION         "0.1"
+#define BUF_SIZE        (16 * 1024)
+#define PAT_SIZE        100
+
+char            *progname;
+char            *inputname;
+int             inputfd;
+unsigned int    bix;                    /* buf index */
+unsigned char   patterns [PAT_SIZE] = {0}; /* byte-sized pattern array */
+int             pat_len;                /* actual number of pattern bytes */
+unsigned char   *madr;                  /* mmap address */
+size_t          filesize;
+int             num_matches = 0;
+off_t           firstloc = 0;
+
+void usage (void)
+{
+        fprintf (stderr, "%s ver. %s\n", progname, VERSION);
+        fprintf (stderr, "usage:  %s filename pattern_bytes\n",
+                        progname);
+        fprintf (stderr, "        [prints location of pattern_bytes in file]\n");
+        exit (1);
+}
+
+void get_pattern (int pat_count, char *pats [])
+{
+        int ix, err, tmp;
+
+#ifdef DEBUG
+        fprintf (stderr,"get_pattern: count = %d\n", pat_count);
+        for (ix = 0; ix < pat_count; ix++)
+                fprintf (stderr, "  pat # %d:  [%s]\n", ix, pats[ix]);
+#endif
+
+        for (ix = 0; ix < pat_count; ix++) {
+                tmp = 0;
+                err = sscanf (pats[ix], "%5i", &tmp);
+                if (err != 1 || tmp > 0xff) {
+                        fprintf (stderr, "pattern or value error in pattern # %d [%s]\n",
+                                        ix, pats[ix]);
+                        usage ();
+                }
+                patterns [ix] = tmp;
+        }
+        pat_len = pat_count;
+}
+
+void search_pattern (void)
+{
+        for (bix = 0; bix < filesize; bix++) {
+                if (madr[bix] == patterns[0]) {
+                        if (memcmp (&madr[bix], patterns, pat_len) == 0) {
+                                if (num_matches == 0)
+                                        firstloc = bix;
+                                num_matches++;
+                        }
+                }
+        }
+}
+
+#ifdef NOTDEF
+size_t get_filesize (int fd)
+{
+        off_t end_off = lseek (fd, 0, SEEK_END);
+        lseek (fd, 0, SEEK_SET);
+        return (size_t) end_off;
+}
+#endif
+
+size_t get_filesize (int fd)
+{
+        int err;
+        struct stat stat;
+
+        err = fstat (fd, &stat);
+        fprintf (stderr, "filesize: %ld\n", err < 0 ? (long)err : stat.st_size);
+        if (err < 0)
+                return err;
+        return (size_t) stat.st_size;
+}
+
+int main (int argc, char *argv [])
+{
+        progname = argv[0];
+
+        if (argc < 3)
+                usage ();
+
+        get_pattern (argc - 2, argv + 2);
+
+        inputname = argv[1];
+
+        inputfd = open (inputname, O_RDONLY);
+        if (inputfd == -1) {
+                fprintf (stderr, "%s: cannot open '%s'\n",
+                                progname, inputname);
+                exit (3);
+        }
+
+        filesize = get_filesize (inputfd);
+
+        madr = mmap (0, filesize, PROT_READ, MAP_PRIVATE, inputfd, 0);
+        if (madr == MAP_FAILED) {
+                fprintf (stderr, "mmap error = %d\n", errno);
+                close (inputfd);
+                exit (4);
+        }
+
+        search_pattern ();
+
+        if (munmap (madr, filesize))
+                fprintf (stderr, "munmap error = %d\n", errno);
+
+        if (close (inputfd))
+                fprintf (stderr, "%s: error %d closing '%s'\n",
+                                progname, errno, inputname);
+
+        fprintf (stderr, "number of pattern matches = %d\n", num_matches);
+        if (num_matches == 0)
+                firstloc = ~0;
+        printf ("%ld\n", firstloc);
+        fprintf (stderr, "%ld\n", firstloc);
+
+        exit (num_matches ? 0 : 2);
+}
+
+/* end binoffset.c */