[PATCH] Fix ioctl() wrappers for 64-bit systems

[Nate Case]

The ioctl_*() and bb_xioctl*() functions declare the second argument as
"int request" rather than "unsigned long int request" which break the
ioctl() calls on 64-bit systems.

This bug presented itself in the form of login failing during the
termios TCSETS call on my ppc64 board:

    getty: /dev/ttyS0: TCSETS: Invalid argument

I verified that changing the "request" argument to "unsigned long int"
fixes the problem. It should leave 32-bit systems unaffected.

I also reported this issue on the bug tracker and included patches:

    http://busybox.net/bugs/view.php?id=2884

---
Note: This patch is against the unstable trunk.  See bug report for
patch against stable branch.

Index: libbb/xfuncs_printf.c
===================================================================
--- libbb/xfuncs_printf.c	(revision 21697)
+++ libbb/xfuncs_printf.c	(working copy)
@@ -451,7 +451,7 @@
 #endif
 }
 
-int ioctl_or_perror_and_die(int fd, int request, void *argp, const char *fmt,...)
+int ioctl_or_perror_and_die(int fd, unsigned long int request, void *argp, const char *fmt,...)
 {
 	int ret;
 	va_list p;
@@ -467,7 +467,7 @@
 	return ret;
 }
 
-int ioctl_or_perror(int fd, int request, void *argp, const char *fmt,...)
+int ioctl_or_perror(int fd, unsigned long int request, void *argp, const char *fmt,...)
 {
 	va_list p;
 	int ret = ioctl(fd, request, argp);
@@ -481,7 +481,7 @@
 }
 
 #if ENABLE_IOCTL_HEX2STR_ERROR
-int bb_ioctl_or_warn(int fd, int request, void *argp, const char *ioctl_name)
+int bb_ioctl_or_warn(int fd, unsigned long int request, void *argp, const char *ioctl_name)
 {
 	int ret;
 
@@ -490,7 +490,7 @@
 		bb_simple_perror_msg(ioctl_name);
 	return ret;
 }
-int bb_xioctl(int fd, int request, void *argp, const char *ioctl_name)
+int bb_xioctl(int fd, unsigned long int request, void *argp, const char *ioctl_name)
 {
 	int ret;
 
@@ -500,7 +500,7 @@
 	return ret;
 }
 #else
-int bb_ioctl_or_warn(int fd, int request, void *argp)
+int bb_ioctl_or_warn(int fd, unsigned long int request, void *argp)
 {
 	int ret;
 
@@ -509,7 +509,7 @@
 		bb_perror_msg("ioctl %#x failed", request);
 	return ret;
 }
-int bb_xioctl(int fd, int request, void *argp)
+int bb_xioctl(int fd, unsigned long int request, void *argp)
 {
 	int ret;
 
Index: include/libbb.h
===================================================================
--- include/libbb.h	(revision 21697)
+++ include/libbb.h	(working copy)
@@ -1016,16 +1016,16 @@
 /* NB: typically you want to pass fd 0, not 1. Think 'applet | grep something' */
 int get_terminal_width_height(int fd, int *width, int *height);
 
-int ioctl_or_perror(int fd, int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
-int ioctl_or_perror_and_die(int fd, int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
+int ioctl_or_perror(int fd, unsigned long int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
+int ioctl_or_perror_and_die(int fd, unsigned long int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
 #if ENABLE_IOCTL_HEX2STR_ERROR
-int bb_ioctl_or_warn(int fd, int request, void *argp, const char *ioctl_name);
-int bb_xioctl(int fd, int request, void *argp, const char *ioctl_name);
+int bb_ioctl_or_warn(int fd, unsigned long int request, void *argp, const char *ioctl_name);
+int bb_xioctl(int fd, unsigned long int request, void *argp, const char *ioctl_name);
 #define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp,#request)
 #define xioctl(fd,request,argp)        bb_xioctl(fd,request,argp,#request)
 #else
-int bb_ioctl_or_warn(int fd, int request, void *argp);
-int bb_xioctl(int fd, int request, void *argp);
+int bb_ioctl_or_warn(int fd, unsigned long int request, void *argp);
+int bb_xioctl(int fd, unsigned long int request, void *argp);
 #define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp)
 #define xioctl(fd,request,argp)        bb_xioctl(fd,request,argp)
 #endif