On Sun, Jul 17, 2011, Alexander Schrijver wrote:
>> nope, only ssize_t is guaranteed.
>
> This is the only way i could think off.
I don't think you will ever be able to get a string longer than
SSIZE_MAX into memory, but that looks good.
>
> Index: util.c
> ===================================================================
> RCS file: /home/alex/scm/cvsync/src/usr.bin/grep/util.c,v
> retrieving revision 1.41
> diff -u -r1.41 util.c
> --- util.c 11 Jul 2011 20:43:21 -0000 1.41
> +++ util.c 17 Jul 2011 12:01:56 -0000
> @@ -169,7 +169,13 @@
> {
> regmatch_t pmatch;
> int c, i, r;
> - int offset;
> + regoff_t offset;
> +
> + /* size_t will be converted to regoff_t. ssize_t is guaranteed to fit
> + * into regoff_t */
> + if (l->len > SSIZE_MAX) {
> + errx(2, "Line is too big to process");
> + }
>
> c = 0;
> i = 0;
> @@ -444,7 +450,7 @@
> #ifdef SMALL
> return 0;
> #else
> - int j;
> + regoff_t j;
> int rtrnVal = REG_NOMATCH;
>
> pmatch->rm_so = -1;
