Hey, I'm resubmitting this patch since the source tree was locked last time I submitted. Any thoughts?
Thanks, William Orr Index: bin/dd/args.c =================================================================== RCS file: /cvs/src/bin/dd/args.c,v retrieving revision 1.25 diff -u -b -w -p -r1.25 args.c --- bin/dd/args.c 21 May 2014 06:23:02 -0000 1.25 +++ bin/dd/args.c 12 Sep 2014 04:51:07 -0000 @@ -323,8 +323,12 @@ get_bsz(char *val) size_t num, t; char *expr; + if (strchr(val, '-')) + errx(1, "%s: illegal numeric value", oper); + + errno = 0; num = strtoul(val, &expr, 0); - if (num == SIZE_T_MAX) /* Overflow. */ + if (num == ULONG_MAX && errno == ERANGE) /* Overflow. */ err(1, "%s", oper); if (expr == val) /* No digits. */ errx(1, "%s: illegal numeric value", oper);