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/*
* Copyright (c) 2014-2016 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
* Reserved. This file contains Original Code and/or Modifications of
* Original Code as defined in and that are subject to the Apple Public
* Source License Version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. Please obtain a copy of the
* License at http://www.apple.com/publicsource and read it before using
* this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License."
*
* @APPLE_LICENSE_HEADER_END@
*/
#include <sys/pgo.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
static void usage(char **argv)
{
fprintf (stderr, "usage: %s [-H] [-m] [-w] [uuid] >datafile\n", argv[0]);
fprintf (stderr, " uuid : the UUID of a kext\n");
fprintf (stderr, " -H : grab data for the HIB segment\n");
fprintf (stderr, " -w : wait for the kext to be unloaded\n");
fprintf (stderr, " -m : request metadata\n");
fprintf (stderr, " -R : reset all counters\n");
exit(1);
}
int main(int argc, char **argv)
{
int flags = 0;
int data_flags = 0;
uuid_t *uuidp = NULL;
uuid_t uuid;
int c;
while ((c = getopt(argc, argv, "hHwmR")) != EOF) {
switch(c) {
case 'R':
flags |= PGO_RESET_ALL;
break;
case 'H':
flags |= PGO_HIB;
break;
case 'm':
flags |= PGO_METADATA;
break;
case 'w':
data_flags |= PGO_WAIT_FOR_UNLOAD;
break;
case '?':
case 'h':
default:
usage(argv);
break;
}
}
if (optind < argc)
{
if (optind == argc - 1 &&
0 == uuid_parse(argv[optind], uuid))
{
uuidp = &uuid;
} else {
usage(argv);
}
}
if (flags & PGO_RESET_ALL) {
if (flags != PGO_RESET_ALL || uuidp) {
usage(argv);
}
ssize_t r = grab_pgo_data(NULL, PGO_RESET_ALL, NULL, 0);
if (r < 0)
{
perror("grab_pgo_data");
return 1;
}
return 0;
}
ssize_t size = grab_pgo_data(uuidp, flags, NULL, 0);
if (size < 0)
{
perror("grab_pgo_data");
return 1;
}
fprintf (stderr, "size = %ld\n", (long) size);
unsigned char *buffer = valloc(size);
if (!buffer)
{
perror("valloc");
return 1;
}
ssize_t r = grab_pgo_data(uuidp, flags | data_flags, buffer, size);
if (r < 0)
{
perror("grab_pgo_data");
return 1;
}
if (isatty(STDOUT_FILENO)) {
fprintf (stderr, "%s: refusing to write binary data to a tty!\n", argv[0]);
return 1;
}
while (size > 0) {
errno = 0;
r = write(STDOUT_FILENO, buffer, size);
if (r > 0) {
buffer += r;
size -= r;
} else {
perror ("write");
return 1;
}
}
return 0;
}
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