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Code Issues Releases Activity

Make the KASSERTs report the correct function names.

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Fix two off-by-one errors that would sometimes cause the final length of
the sbuf to include the trailing zero.
This commit is contained in:
Dag-Erling Smørgrav 2001-03-06 17:48:26 +00:00
parent 5293465fef
commit cab5b963a0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=73891
1 changed files with 11 additions and 18 deletions
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27
sys/kern/subr_sbuf.c
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@ -57,23 +57,25 @@ MALLOC_DEFINE(M_SBUF, "sbuf", "string buffers");
*/
#ifdef INVARIANTS
static void
assert_sbuf_integrity(struct sbuf *s)
_assert_sbuf_integrity(char *fun, struct sbuf *s)
{
KASSERT(s != NULL,
(__FUNCTION__ " called with a NULL sbuf pointer"));
("%s called with a NULL sbuf pointer", fun));
KASSERT(s->s_buf != NULL,
(__FUNCTION__ " called with unitialized or corrupt sbuf"));
("%s called with unitialized or corrupt sbuf", fun));
KASSERT(s->s_len < s->s_size,
("wrote past end of sbuf (%d >= %d)", s->s_len, s->s_size));
}
static void
assert_sbuf_state(struct sbuf *s, int state)
_assert_sbuf_state(char *fun, struct sbuf *s, int state)
{
KASSERT((s->s_flags & SBUF_FINISHED) == state,
(__FUNCTION__ " called with %sfinished or corrupt sbuf",
("%s called with %sfinished or corrupt sbuf", fun,
(state ? "un" : "")));
}
#define assert_sbuf_integrity(s) _assert_sbuf_integrity(__FUNCTION__, (s))
#define assert_sbuf_state(s, i) _assert_sbuf_state(__FUNCTION__, (s), (i))
#else
#define assert_sbuf_integrity(s) do { } while (0)
#define assert_sbuf_state(s, i) do { } while (0)
@ -181,17 +183,7 @@ sbuf_cpy(struct sbuf *s, char *str)
static void
_sbuf_pchar(int c, void *v)
{
struct sbuf *s = (struct sbuf *)v;
assert_sbuf_integrity(s);
assert_sbuf_state(s, 0);
if (SBUF_HASOVERFLOWED(s))
return;
if (SBUF_HASROOM(s))
s->s_buf[s->s_len++] = c;
else
SBUF_SETFLAG(s, SBUF_OVERFLOWED);
sbuf_putc((struct sbuf *)v, c);
}
/*
@ -240,6 +232,7 @@ sbuf_putc(struct sbuf *s, int c)
SBUF_SETFLAG(s, SBUF_OVERFLOWED);
return (-1);
}
if (c != '\0')
s->s_buf[s->s_len++] = c;
return (0);
}
@ -262,7 +255,7 @@ sbuf_finish(struct sbuf *s)
assert_sbuf_integrity(s);
assert_sbuf_state(s, 0);
s->s_buf[s->s_len++] = '\0';
s->s_buf[s->s_len] = '\0';
SBUF_CLEARFLAG(s, SBUF_OVERFLOWED);
SBUF_SETFLAG(s, SBUF_FINISHED);
}