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stress2: Fix a off-by-one error. Added check for argument file type

This commit is contained in:
Peter Holm 2023-03-06 10:03:43 +01:00
parent 527bf20032
commit ee10c61d7a
1 changed files with 3 additions and 1 deletions
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4
tools/test/stress2/tools/flip.c
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@ -57,7 +57,7 @@ flip(void *ap, size_t len)
unsigned char bit, buf, mask, old __unused;
cp = (unsigned char *)ap;
byte = random_long(0, len);
byte = random_long(0, len - 1);
bit = random_long(0,7);
mask = ~(1 << bit);
buf = cp[byte];
@ -111,6 +111,8 @@ main(int argc, char *argv[])
if (size == 0) {
if (fstat(fd, &st) == -1)
err(1, "stat %s", argv[0]);
if ((st.st_mode & S_IFREG) == 0)
errx(1, "%s must be a regular file\n", argv[0]);
size = st.st_size;
}