-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
#include <fcntl.h>
#include <stdarg.h>
-#define BUFSIZE (1024*1024)
+#define BUFSIZE (1024 * 1024)
void error(char *fmt, ...)
{
- va_list ap;
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
- exit(1);
+ va_list ap;
+
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ exit(1);
}
int compare_offsets(const void *a, const void *b)
{
- off_t *A = (off_t *)a;
- off_t *B = (off_t *)b;
- return *A - *B;
+ off_t *A = (off_t *)a;
+ off_t *B = (off_t *)b;
+
+ return *A - *B;
}
int main(int argc, char **argv)
{
- unsigned int num_offsets, cur_off = 0, i;
- off_t *offsets, pos = 0, end_of_buf = 0;
- char *end, *buf;
- struct stat st;
- ssize_t ret;
- int fd;
-
- if (argc < 3)
- error("Usage: %s <filename> <offset> [ offset ... ]\n",
- argv[0]);
-
- fd = open(argv[1], O_RDONLY);
- if (fd < 0)
- error("couldn't open %s: %s\n", argv[1], strerror(errno));
-
- buf = malloc(BUFSIZE);
- if (buf == NULL)
- error("can't allocate buffer\n");
-
- num_offsets = argc - 2;
- offsets = calloc(sizeof(offsets[0]), num_offsets);
- for (i = 0; i < num_offsets; i++) {
- offsets[i] = strtoul(argv[i + 2], &end, 10);
- if (*end)
- error("couldn't parse offset '%s'\n", argv[i + 2]);
- }
- qsort(offsets, num_offsets, sizeof(offsets[0]), compare_offsets);
-
- if (fstat(fd, &st) < 0)
- error("stat: %s\n", strerror(errno));
-
- for (i = 0; pos < st.st_size; i++, pos++) {
- if (pos == end_of_buf) {
- ret = read(fd, buf, BUFSIZE);
- if (ret < 0)
- error("read(): %s\n", strerror(errno));
- end_of_buf = pos + ret;
- if (end_of_buf > st.st_size)
- error("read %d bytes past file size?\n",
- end_of_buf - st.st_size);
- i = 0;
- }
-
- /* check for 0 when we aren't at a given offset */
- if (cur_off >= num_offsets || pos != offsets[cur_off]) {
- if (buf[i] != 0)
- error("found char 0x%x at pos %lu instead of "
- "0x0\n", buf[i], (long)pos);
- continue;
- }
-
- /* the command line asks us to check for + at this offset */
- if (buf[i] != '+')
- error("found char 0x%x at pos %lu instead of "
- "'.'\n", buf[i], (long)pos);
-
- /* skip over duplicate offset arguments */
- while (cur_off < num_offsets && offsets[cur_off] == pos)
- cur_off++;
- }
- /* don't bother freeing or closing.. */
- return 0;
+ unsigned int num_offsets, cur_off = 0, i;
+ off_t *offsets, pos = 0, end_of_buf = 0;
+ char *end, *buf;
+ struct stat st;
+ ssize_t ret;
+ int fd;
+
+ if (argc < 3)
+ error("Usage: %s <filename> <offset> [ offset ... ]\n",
+ argv[0]);
+
+ fd = open(argv[1], O_RDONLY);
+ if (fd < 0)
+ error("couldn't open %s: %s\n", argv[1], strerror(errno));
+
+ buf = malloc(BUFSIZE);
+ if (!buf)
+ error("can't allocate buffer\n");
+
+ num_offsets = argc - 2;
+ offsets = calloc(sizeof(offsets[0]), num_offsets);
+ for (i = 0; i < num_offsets; i++) {
+ offsets[i] = strtoul(argv[i + 2], &end, 10);
+ if (*end)
+ error("couldn't parse offset '%s'\n", argv[i + 2]);
+ }
+ qsort(offsets, num_offsets, sizeof(offsets[0]), compare_offsets);
+
+ if (fstat(fd, &st) < 0)
+ error("stat: %s\n", strerror(errno));
+
+ for (i = 0; pos < st.st_size; i++, pos++) {
+ if (pos == end_of_buf) {
+ ret = read(fd, buf, BUFSIZE);
+ if (ret < 0)
+ error("read(): %s\n", strerror(errno));
+ end_of_buf = pos + ret;
+ if (end_of_buf > st.st_size)
+ error("read %d bytes past file size?\n",
+ end_of_buf - st.st_size);
+ i = 0;
+ }
+
+ /* check for 0 when we aren't at a given offset */
+ if (cur_off >= num_offsets || pos != offsets[cur_off]) {
+ if (buf[i] != 0)
+ error("found char 0x%x at pos %lu instead of 0x0\n",
+ buf[i], (long)pos);
+ continue;
+ }
+
+ /* the command line asks us to check for + at this offset */
+ if (buf[i] != '+')
+ error("found char 0x%x at pos %lu instead of '.'\n",
+ buf[i], (long)pos);
+
+ /* skip over duplicate offset arguments */
+ while (cur_off < num_offsets && offsets[cur_off] == pos)
+ cur_off++;
+ }
+ /* don't bother freeing or closing.. */
+ return 0;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff