1 files changed, 72 insertions, 0 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
new file mode 100644
index 0000000..cd94433
--- /dev/null
+++ b/scripts/mod/modpost.c
@@ -0,0 +1,72 @@
+#include <elf.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "modpost.h"
+
+int main (int argc, char *argv[])
+{
+  char const *data, *class;
+  char prog[1024];
+  unsigned char ei[EI_NIDENT];
+  int opt;
+  FILE *file;
+
+  while ((opt = getopt (argc, argv, GETOPT_OPTIONS)) != -1)
+  { 
+    switch(opt)
+    {
+      GETOPT_CASE
+        break;
+      default:
+        return EXIT_FAILURE;
+    }
+  }
+
+  if (optind == argc)
+    return EXIT_SUCCESS;
+
+  if (!(file = fopen (argv[optind], "r")))
+  {
+    fprintf (stderr, "Can't open file\n");
+    return EXIT_FAILURE;
+  }
+
+  if (fread (ei, 1, EI_NIDENT, file) != EI_NIDENT)
+  {
+    fprintf (stderr, "Error: input truncated\n");
+    return EXIT_FAILURE;
+  }
+
+  if (memcmp (ei, ELFMAG, SELFMAG) != 0)
+  {
+    fprintf (stderr, "Error: not ELF\n");
+    return EXIT_FAILURE;
+  }
+  switch (ei[EI_DATA]) {
+    case ELFDATA2LSB:
+      data = "lsb";
+      break;
+    case ELFDATA2MSB:
+      data = "msb";
+      break;
+    default:
+      return EXIT_FAILURE;
+  }
+  switch (ei[EI_CLASS]) {
+    case ELFCLASS32:
+      class = "32";
+      break;
+    case ELFCLASS64:
+      class = "64";
+      break;
+    default:
+      return EXIT_FAILURE;
+  }
+  snprintf (prog, sizeof prog, "%s.real-%s-%s", argv[0], data, class);
+
+  return execv (prog, argv);
+}