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(main): Don't assume mt_count is of type daddr_t.

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This commit is contained in:
Paul Eggert
1997-11-10 19:13:12 +00:00
parent 48be206fbf
commit 56569a0f75
1 changed files with 9 additions and 4 deletions
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13
src/rmt.c
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@@ -392,12 +392,12 @@ top:
{
struct mtop mtop;
const char *p;
daddr_t count = 0;
off_t count = 0;
int negative;
/* Parse count_string, taking care to check for overflow.
We can't use standard functions,
since daddr_t might be longer than long. */
since off_t might be longer than long. */
for (p = count_string; *p == ' ' || *p == '\t'; p++)
continue;
@@ -412,8 +412,8 @@ top:
break;
else
{
daddr_t c10 = 10 * count;
daddr_t nc = negative ? c10 - digit : c10 + digit;
off_t c10 = 10 * count;
off_t nc = negative ? c10 - digit : c10 + digit;
if (c10 / 10 != count || (negative ? c10 < nc : nc < c10))
{
report_error_message (N_("Seek offset out of range"));
@@ -424,6 +424,11 @@ top:
}
mtop.mt_count = count;
if (mtop.mt_count != count)
{
report_error_message (N_("Seek offset out of range"));
exit (EXIT_FAILURE);
}
mtop.mt_op = atoi (operation_string);
if (ioctl (tape, MTIOCTOP, (char *) &mtop) < 0)