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-rw-r--r--src/truncate.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/src/truncate.c b/src/truncate.c
index 8febd5895..2435a1277 100644
--- a/src/truncate.c
+++ b/src/truncate.c
@@ -74,10 +74,21 @@ static int
parse_len (char const *str, off_t *size)
{
enum strtol_error e;
- /* OFF_T_MAX = INTMAX_MAX */
- e = xstrtoimax (str, NULL, 10, size, "EgGkKmMPtTYZ0");
- errno = (e == LONGINT_OVERFLOW) ? EOVERFLOW : 0;
- return (e == LONGINT_OK) ? 0 : -1;
+ intmax_t tmp_size;
+ e = xstrtoimax (str, NULL, 10, &tmp_size, "EgGkKmMPtTYZ0");
+ if (e == LONGINT_OK
+ && !(OFF_T_MIN <= tmp_size && tmp_size <= OFF_T_MAX))
+ e = LONGINT_OVERFLOW;
+
+ if (e == LONGINT_OK)
+ {
+ errno = 0;
+ *size = tmp_size;
+ return 0;
+ }
+
+ errno = (e == LONGINT_OVERFLOW ? EOVERFLOW : 0);
+ return -1;
}
static void
@@ -243,7 +254,7 @@ int
main (int argc, char **argv)
{
bool got_size = false;
- off_t size;
+ off_t size IF_LINT (= 0);
rel_mode_t rel_mode = rm_abs;
mode_t omode;
int c, errors = 0, fd = -1, oflags;