rtld: check for overflow in parse_integer()

[dim]

LGTM

[markj]

libexec/rtld-elf/rtld.c

6507

Can we use the stdckint.h routines instead? There is no libc dependency there.

[dim]

libexec/rtld-elf/rtld.c

6507

Can we use the stdckint.h routines instead? There is no libc dependency there.

You can also avoid the need for wrapping, and avoid unsigned ints, like so:

if (n > INT_MAX / 10)
  return (-1);
n *= 10;
if (n > INT_MAX - (c - '\0'))
  return (-1);
n += (c - '\0');

No need for stdckint.h then, either.

[kib]

Take Dimitry suggestion.

[dim]

LGTM again :)