Select pwrite64 or pwrite depending on what autoconf finds. This
makes e2fuzz find a suitable pwrite variant regardless of platform.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
misc/e2fuzz.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/misc/e2fuzz.c b/misc/e2fuzz.c
index 91aafe5..5794f97 100644
--- a/misc/e2fuzz.c
+++ b/misc/e2fuzz.c
@@ -32,15 +32,15 @@ static int metadata_only = 1;
static unsigned long long user_corrupt_bytes = 0;
static double user_corrupt_pct = 0.0;
-#ifndef HAVE_PWRITE
-ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset)
+#if !defined HAVE_PWRITE64 && !defined HAVE_PWRITE
+static ssize_t my_pwrite(int fd, const void *buf, size_t count, off_t offset)
{
if (lseek(fd, offset, SEEK_SET) < 0)
return 0;
return write(fd, buf, count);
}
-#endif /* HAVE_PWRITE */
+#endif /* !defined HAVE_PWRITE64 && !defined HAVE_PWRITE */
int getseed(void)
{
@@ -276,10 +276,22 @@ int process_fs(const char *fsname)
off % fs->blocksize, off / fs->blocksize, c);
if (dryrun)
continue;
+#ifdef HAVE_PWRITE64
+ if (pwrite64(fd, &c, sizeof(c), off) != sizeof(c)) {
+ perror(fsname);
+ goto fail3;
+ }
+#elif HAVE_PWRITE
if (pwrite(fd, &c, sizeof(c), off) != sizeof(c)) {
perror(fsname);
goto fail3;
}
+#else
+ if (my_pwrite(fd, &c, sizeof(c), off) != sizeof(c)) {
+ perror(fsname);
+ goto fail3;
+ }
+#endif
}
close(fd);
--
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