*
*/
-#include "busybox.h"
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/utsname.h>
#include <asm/page.h> /* for PAGE_SIZE and PAGE_SHIFT */
/* we also get PAGE_SIZE via getpagesize() */
+#include "busybox.h"
#ifndef _IO
/* pre-1.3.45 */
static int pagesize;
static int *signature_page;
-struct swap_header_v1 {
+static struct swap_header_v1 {
char bootbits[1024]; /* Space for disklabel etc. */
unsigned int version;
unsigned int last_page;
unsigned int badpages[1];
} *p;
-static void init_signature_page()
+static inline void init_signature_page(void)
{
pagesize = getpagesize();
#ifdef PAGE_SIZE
if (pagesize != PAGE_SIZE)
- error_msg("Assuming pages of size %d\n", pagesize);
+ error_msg("Assuming pages of size %d", pagesize);
#endif
signature_page = (int *) xmalloc(pagesize);
memset(signature_page, 0, pagesize);
p = (struct swap_header_v1 *) signature_page;
}
-static void write_signature(char *sig)
+static inline void write_signature(char *sig)
{
char *sp = (char *) signature_page;
#define MAX_BADPAGES ((pagesize-1024-128*sizeof(int)-10)/sizeof(int))
-static void bit_set(unsigned int *addr, unsigned int nr)
+static inline void bit_set(unsigned int *addr, unsigned int nr)
{
unsigned int r, m;
}
-static void die(const char *str)
-{
- error_msg("%s\n", str);
- exit(EXIT_FAILURE);
-}
-
static void page_ok(int page)
{
if (version == 0)
bit_set(signature_page, page);
}
-static void page_bad(int page)
+static inline void page_bad(int page)
{
if (version == 0)
bit_test_and_clear(signature_page, page);
else {
if (badpages == MAX_BADPAGES)
- die("too many bad pages");
+ error_msg_and_die("too many bad pages");
p->badpages[badpages] = page;
}
badpages++;
}
if (do_seek && lseek(DEV, current_page * pagesize, SEEK_SET) !=
current_page * pagesize)
- die("seek failed in check_blocks");
+ error_msg_and_die("seek failed in check_blocks");
if ((do_seek = (pagesize != read(DEV, buffer, pagesize)))) {
page_bad(current_page++);
continue;
PAGES = strtol(argv[0], &tmp, 0) / blocks_per_page;
if (*tmp)
- usage(mkswap_usage);
+ show_usage();
} else
device_name = argv[0];
} else {
version = atoi(argv[0] + 2);
break;
default:
- usage(mkswap_usage);
+ show_usage();
}
}
}
if (!device_name) {
- error_msg("error: Nowhere to set up swap on?\n");
- usage(mkswap_usage);
+ error_msg("error: Nowhere to set up swap on?");
+ show_usage();
}
sz = get_size(device_name);
if (!PAGES) {
PAGES = sz;
} else if (PAGES > sz && !force) {
- error_msg("error: size %ld is larger than device size %d\n",
+ error_msg("error: size %ld is larger than device size %d",
PAGES * (pagesize / 1024), sz * (pagesize / 1024));
return EXIT_FAILURE;
}
version = 1;
}
if (version != 0 && version != 1) {
- error_msg("error: unknown version %d\n", version);
- usage(mkswap_usage);
+ error_msg("error: unknown version %d", version);
+ show_usage();
}
if (PAGES < 10) {
- error_msg("error: swap area needs to be at least %ldkB\n",
+ error_msg("error: swap area needs to be at least %ldkB",
(long) (10 * pagesize / 1024));
- usage(mkswap_usage);
+ show_usage();
}
#if 0
maxpages = ((version == 0) ? V0_MAX_PAGES : V1_MAX_PAGES);
#endif
if (PAGES > maxpages) {
PAGES = maxpages;
- error_msg("warning: truncating swap area to %ldkB\n",
+ error_msg("warning: truncating swap area to %ldkB",
PAGES * pagesize / 1024);
}
if (!S_ISBLK(statbuf.st_mode))
check = 0;
else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
- die("Will not try to make swapdevice on '%s'");
+ error_msg_and_die("Will not try to make swapdevice on '%s'", device_name);
#ifdef __sparc__
if (!force && version == 0) {
unsigned short *q, sum;
if (read(DEV, buffer, 512) != 512)
- die("fatal: first page unreadable");
+ error_msg_and_die("fatal: first page unreadable");
if (buffer[508] == 0xDA && buffer[509] == 0xBE) {
q = (unsigned short *) (buffer + 510);
for (sum = 0; q >= (unsigned short *) buffer;)
error_msg("Device '%s' contains a valid Sun disklabel.\n"
"This probably means creating v0 swap would destroy your partition table\n"
"No swap created. If you really want to create swap v0 on that device, use\n"
-"the -f option to force it.\n", device_name);
+"the -f option to force it.", device_name);
return EXIT_FAILURE;
}
}
if (version == 0 || check)
check_blocks();
if (version == 0 && !bit_test_and_clear(signature_page, 0))
- die("fatal: first page unreadable");
+ error_msg_and_die("fatal: first page unreadable");
if (version == 1) {
p->version = version;
p->last_page = PAGES - 1;
goodpages = PAGES - badpages - 1;
if (goodpages <= 0)
- die("Unable to set up swap-space: unreadable");
+ error_msg_and_die("Unable to set up swap-space: unreadable");
printf("Setting up swapspace version %d, size = %ld bytes\n",
version, (long) (goodpages * pagesize));
write_signature((version == 0) ? "SWAP-SPACE" : "SWAPSPACE2");
offset = ((version == 0) ? 0 : 1024);
if (lseek(DEV, offset, SEEK_SET) != offset)
- die("unable to rewind swap-device");
+ error_msg_and_die("unable to rewind swap-device");
if (write(DEV, (char *) signature_page + offset, pagesize - offset)
!= pagesize - offset)
- die("unable to write signature page");
+ error_msg_and_die("unable to write signature page");
/*
* A subsequent swapon() will fail if the signature
* is not actually on disk. (This is a kernel bug.)
*/
if (fsync(DEV))
- die("fsync failed");
+ error_msg_and_die("fsync failed");
return EXIT_SUCCESS;
}