ioctl: print unrecognized ioctl codes in _IOC(dir,type,nr,size) format

[strace] / ioctlsort.c

diff --git a/ioctlsort.c b/ioctlsort.c
index 50f47603b0e9c181bc9d47708d61ce291994905b..f0f5744ed32b5622fe50835acdc87563c5e786bf 100644 (file)
--- a/ioctlsort.c
+++ b/ioctlsort.c
@@ -1,68 +1,58 @@
-/*
- * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
- * Copyright (c) 1993, 1994, 1995 Rick Sladkey <jrs@world.std.com>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *     $Id$
- */
-
 #include <stdio.h>
-
-#ifdef STDC_HEADERS
 #include <stdlib.h>
-#endif
+#include <string.h>
+#include <sys/types.h>
+#include <stdint.h>
+
+#include <asm/ioctl.h>
+#include <linux/types.h>
+
+#include "ioctldefs.h"
+#include <linux/atmioc.h>
 
 struct ioctlent {
-       const char *doth;
-       const char *symbol;
-       unsigned long code;
+       const char*     header;
+       const char*     name;
+       unsigned int    code;
+};
+
+struct ioctlent ioctls[] = {
+#include "ioctls.h"
 };
 
-#include "ioctlent.raw"
+int nioctls = sizeof(ioctls) / sizeof(ioctls[0]);
+
+int compare(const void* a, const void* b) {
+       unsigned int code1 = ((struct ioctlent *) a)->code;
+       unsigned int code2 = ((struct ioctlent *) b)->code;
+       const char *name1 = ((struct ioctlent *) a)->name;
+       const char *name2 = ((struct ioctlent *) b)->name;
+       return (code1 > code2) ? 1 : (code1 < code2) ? -1 : strcmp(name1, name2);
+}
 
-int nioctlents = sizeof ioctlent / sizeof ioctlent[0];
+static int is_not_prefix(const char *s1, const char *s2) {
+       size_t len = strlen(s1);
 
-int
-compare(a, b)
-const void *a;
-const void *b;
-{
-       unsigned long code1 = ((struct ioctlent *) a)->code;
-       unsigned long code2 = ((struct ioctlent *) b)->code;
-       return (code1 > code2) ? 1 : (code1 < code2) ? -1 : 0;
+       if (len > strlen(s2))
+               return 1;
+       return memcmp(s1, s2, len);
 }
 
-int
-main(int argc, const char *argv[])
-{
+int main(int argc, char** argv) {
        int i;
 
-       qsort(ioctlent, nioctlents, sizeof ioctlent[0], compare);
-       for (i = 0; i < nioctlents; i++) {
-               printf("{\"%s\", \"%s\", %#lx},\n",
-                       ioctlent[i].doth, ioctlent[i].symbol, ioctlent[i].code);
-       }
+       /* ioctl_lookup() only looks at the NR and TYPE bits atm. */
+       for (i = 0; i < nioctls; i++)
+               ioctls[i].code &= (_IOC_NRMASK << _IOC_NRSHIFT) |
+                                 (_IOC_TYPEMASK << _IOC_TYPESHIFT);
+
+       qsort(ioctls, nioctls, sizeof(ioctls[0]), compare);
+       puts("\t/* Generated by ioctlsort */");
+       for (i = 0; i < nioctls; i++)
+               if (i == 0 || ioctls[i-1].code != ioctls[i].code ||
+                   is_not_prefix(ioctls[i-1].name, ioctls[i].name))
+                       printf("\t{\"%s\",\t\"%s\",\t%#06x},\n",
+                               ioctls[i].header, ioctls[i].name, ioctls[i].code);
+
        return 0;
 }